// support functions for Virginia Fish and Wildlife Information Service Online
//--- July 6, 2009 abj3 mapMeasure coordinate lists re-written
//--- July 24 debugging line 896
//--- July 27, 2009 abj3 add anti-cache to ID window call
//--- August 17, 2009 abj3 HU6
//--- November 10, 2009 abj3 gap
//--- February 11, 2010 abj3 line vs polygon revisited; map measure map report "please wait"
//--- June 1, 2010 abj3 work on map zoom limits
//--- July 15, 2010 abj3 putValueTextXY setNAD83/setNAD27
if( !document.getElementById ) { alert('Your browser does not support Java functions needed by this window.'); }
// Imbeded Function List
//
// function VaFWIS_MapFormInit( mapImageName, divMap, divMapMeasureIdA, divMapMeasureIdB, divZoomBox )
// function mouseCoords(e)
// function zbCrossLines(color) [Private]
// function testMouseDown(e)
// function testMouseUp(e)
// function XYoffset(imageObject)
// function XYscroll()
// function click_map(idName,mX,mY,fromMapMeasureTool)
// function nDecString(floatNumber,nDec)
// function sendFunc()
// function CancelFunc()
// function display_dataRecord()
// function set_bm(basemap)
// function replace_bm(basemap)
// function display_poi()
// function mapSourceComment()
// function set_rings(parm)
// function setOverlayLegend(list)
// function setMapScale(s)
// function clickZoomSelect()
// function setMapSize(tilex,tiley)
// function clickSizeSelect()
// function refbutton()
// function close_windows()
// function get_basemap()
// function openHelpWin(fileName)
// function openAuxillaryLegendWin(fileName)
// function get_overlay()
// function set_shift(s)
// function panButton( mode )
// function measureDrawPoint( graphicObject, x, y, color )
// function initMeasureTool(mode)
// function openMeasureTool()
// function mapMeasureOverScrollBar()
// function measureButton(mode)
// function measureTool(mode)
// function measureToolDrawB()
// function mapMeasureReport()
// function mapMeasureCoord( coord )
// function mapReport( textXY )
// function getValue_textXY()
// function getValue_map_coord()
// function putValueTextXY(textXY,coord,polyLineDelimiter)
// function pageWidth()
// function pageHeight()
// function posLeft()
// function posTop()
// function posRight()
// function posBottom()
// function progress_clear()
// function progress_update()
// function progress_stop()
// function progress_start()
// function locateMap()
// function styleObject(object)
// function monitorReadyState( errorText )
// function monitorReadyStateIgnore()
// function loadXMLDocAsync(url)
// function processXMLText( status, textString )
// function buildImageMap(refName,data,columnNames)
// function replaceMap()
// function mapMeasureAddList()
// function mapMeasureRemoveList()
// function measureToolListArrays2Text(polyLineDelimiter,coord)
//
var child_window;
var mapName;
var mouseX,mouseY;
var timeMouseDown, timeMouseUp;
var jg, zb, mapLeftX, mapTopY, mapRightX, MapBottomY, mapMessageMaxX;
var mouseDown, ScrollBarThickness;
var mapIdName, mapIdObject, Xoffset, Yoffset, Xscroll, Yscroll;
var xList, yList;
var lastX, lastY, mouseMode, lastMouseMode;
var fullXArray, fullYArray;
var mapMeasure, mmA, mmB;
var mapMeasure_poiLL, mapMeasure_dpLL;
var textXY;
var overScrollBar;
var mapMeasureFinish;
var poiDescription;
var ringDescription;
var doNotReplaceMap;
var map_poiLL;
var map_dpLL;
var map_itemUTM17;
var map_poiUTM17;
var map_dpUTM17;
var map_dist;
var map_s;
var map_t;
var map_pixel;
var map_pan;
var map_porUTM17,porDescription;
var divMapId, divZoomBoxId, zbLeft, zbTop, xLeft, yTop, xRight, yBottom, zoomMin, zoomMax;
var isOverMap;
var currentMouseX, currentMouseY, lastMouseX, lastMouseY;
var zoomPixel;
var mapTitle;
var cursorLL;
var mmWindow, mmWindowLoadMode;
var unDoArray;
var unDoTag = 0;
var unDoLine;
var bm_nad;
var showingMapReport = 0;
var savedIdCoordinates = '';
var divMapMeasureIdA, divMapMeasureIdB;
var adjustScrollX = 0;
var adjustScrollY = 0;
var adjustPointerX = 3;
var adjustPointerY = 3;
var mapMeasureDDList = '';
var mapMeasureDDListArray;
var permission_mmID = false;
var mmShadePolygon = false;
//-----------------------------------------------------------------------------------
/* external global variables:
mapWidth
mapHeight
map_pixel
map_min_utmx
map_max_utmy
map_dpz
*/
//-----------------------------------------------------------------------------------
function VaFWIS_MapFormInit( mapImageName, divMap, divMapMeasureIdAparam, divMapMeasureIdBparam, divZoomBox ) {
divMapId = divMap;
divZoomBoxId = divZoomBox;
unDoArray = new Array();
unDoTag = 0;
setNAD27();
map_poiLL = UTM2LL(document.mapform.poi_utm17.value,17);
map_poiUTM17 = LL2UTM(map_poiLL,17);
map_dpLL = UTM2LL(document.mapform.dp_utm17.value,17);
map_dpUTM17 = LL2UTM(map_poiLL,17);
map_dist = document.mapform.dist.value;
map_t = document.mapform.t.value;
map_porUTM17 = map_poiUTM17;
poiDescription = 'Point of Interest';
porDescription = 'Point of Interest';
if( map_dist > 0 ) {
poiDescription = 'Search Point';
porDescription = 'Search Point';
}
map_itemUTM17 = '';
if( re17 !== '' ) {
map_itemUTM17 = re17 + ' ' + rn17 + ' 17';
poiDescription = 'Item Location';
if( map_dist < 1 ) { porDescription = 'Item Location'; }
}
if( divMapMeasureIdAparam != null ) { divMapMeasureIdA = divMapMeasureIdAparam; mmA = new jsGraphics(divMapMeasureIdA); mmA.clear(); }
if( divMapMeasureIdBparam != null ) { divMapMeasureIdB = divMapMeasureIdBparam; mmB = new jsGraphics(divMapMeasureIdB); mmB.clear(); }
if( divZoomBoxId != null ) {
zb = new jsGraphics(divZoomBoxId);
zb.clear();
zb.setColor("red");
zb.setStroke(2);
}
//-- Global variables defined elsewhere
//-------------------------------------
map_pixel = parseInt(map_pixel,10);
map_min_utmx = parseInt(map_min_utmx,10);
map_max_utmy = parseInt(map_max_utmy,10);
map_dpz = parseInt(map_dpz,10);
document.mapform.p.value = map_pixel;
document.mapform.dpz.value = map_dpz;
//-------------------------------------
//--- mouseMode 1 - Point 2 - Drag
mouseMode = '1';
lastMouseMode = '1';
mapMeasure = '0';
document.mapform.measure.value = mapMeasure;
mapMeasureFinish = true;
mouseDown = 0;
mapMessageMaxX = 0;
mapMeasureDDListArray = new Array();
xList = '';
yList = '';
lastX = 0;
lastY = 0;
mapMeasureDDList = '';
mapIdName = mapImageName;
mapIdObject = eval('document.images.' + mapIdName);
mapWidth = parseInt(mapIdObject.width,10);
mapHeight = parseInt(mapIdObject.height,10);
var tile = document.mapform.tile.value.split(',');
doNotReplaceMap = 1;
setMapScale();
setMapSize(tile[0],tile[1]);
set_bm(map_t);
set_rings();
setOverlayLegend();
doNotReplaceMap = 0;
replaceMap();
locateMap();
set_shift(shift);
panButton();
//-- take over mouse
var el = document.body;
if (el.addEventListener){
el.addEventListener('mousemove', mouseCoords, true);
el.addEventListener('mousedown', testMouseDown, true);
el.addEventListener('mouseup', testMouseUp, true);
} else if (el.attachEvent){
el.attachEvent('onmousemove', mouseCoords);
el.attachEvent('onmousedown', testMouseDown);
el.attachEvent('onmouseup', testMouseUp);
} else if( document.captureEvents) {
document.captureEvents(Event.MOUSEOVER);
document.onmousemove = mouseCoords;
document.onmousedown = testMouseDown;
document.onmouseup = testMouseUp;
}
textXY = '';
overScrollBar = false;
mapMeasureFinish = true;
ringDescription = '';
doNotReplaceMap = 0;
map_pan=1;
zbLeft = 0;
zbTop = 0;
xLeft = 0;
yTop = 0;
xRight = 0;
yBottom = 0;
isOverMap = false;
zoomPixel = 0;
mapTitle = title0;
mapMeasureDDListArray = new Array();
mmWindow = false;
//--- initial mmWindowLoadMode -- Map Measure Mouse Mode: 1 - Point 2 - Drag
mmWindowLoadMode = '2';
lastMouseX = 0;
lastMouseY = 0;
permission_mmID = ( user_type == 'A' || user_type == 'B' );
permission_mmID = ( permission_mmID || user_type == 'I' );
initComplete = true;
//-- different browsers return different pointer locations. Adjustments are different;
//--- BrowserDetect.js is loaded by zMapFormJava
if( typeof BrowserDetect != "undefined" ) {
if( BrowserDetect.browser == "Explorer" ) {
// alert("Explorer/"+BrowserDetect.version);
adjustScrollX -= 2; adjustScrollY -= 2;
} else if( BrowserDetect.browser == "Firefox" ) {
// alert("Firefox/"+BrowserDetect.version);
} else if( BrowserDetect.browser == "Opera" ) {
// alert("Opera/"+BrowserDetect.version);
adjustPointerX -= 1; adjustPointerY -= 1;
} else if( BrowserDetect.browser == "Safari" ) {
// alert("Safari/"+BrowserDetect.version);
adjustPointerX += 1; adjustPointerY += 1;
} else {
// alert(BrowserDetect.browser+"/"+BrowserDetect.version);
}
}
}
//-----------------------------------------------------------------------------------
function locateMap() {
XYscroll();
XYoffset();
mapLeftX = Xoffset;
mapTopY = Yoffset;
mapRightX = mapLeftX + mapWidth;
mapBottomY = mapTopY + mapHeight;
}
//-----------------------------------------------------------------------------------
// Browser Window Size and Position
function pageWidth() { return parseInt( window.innerWidth != null? window.innerWidth : document.documentElement && document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body != null ? document.body.clientWidth : null, 10); }
function pageHeight() { return parseInt( window.innerHeight != null? window.innerHeight : document.documentElement && document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body != null? document.body.clientHeight : null, 10); }
function posLeft() { return parseInt( typeof window.pageXOffset != 'undefined' ? window.pageXOffset :document.documentElement && document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft ? document.body.scrollLeft : 0, 10); }
function posTop() { return parseInt( typeof window.pageYOffset != 'undefined' ? window.pageYOffset : document.documentElement && document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop ? document.body.scrollTop : 0, 10); }
function posRight() { return parseInt( posLeft()+pageWidth(), 10);}
function posBottom() { return parseInt( posTop()+pageHeight(), 10);}
//-----------------------------------------------------------------------------------
function XYoffset(imageObject) {
if( !imageObject ) { imageObject = document.images.mapImage; }
if( typeof imageObject.offsetLeft == 'number' ) {
Xoffset = parseInt(imageObject.offsetLeft,10);
Yoffset = parseInt(imageObject.offsetTop,10);
} else {
Xoffset = 0;
Yoffset = 0;
}
var temp = imageObject.offsetParent;
while( temp != null ) {
Xoffset += parseInt(temp.offsetLeft,10);
Yoffset += parseInt(temp.offsetTop,10);
temp = temp.offsetParent;
}
}
//-----------------------------------------------------------------------------------
function XYscroll() {
Xscroll = parseInt(posLeft(),10) + adjustScrollX;
Yscroll = parseInt(posTop(),10) + adjustScrollY;
}
//-----------------------------------------------------------------------------------
function mouseCoords(e) {
//alert("mouseCoords");
//-- set GLOBAL Variables mouseX and mouseY
if( typeof window.event != 'undefined' && window.event.clientX ) {
mouseX = window.event.clientX;
mouseY = window.event.clientY;
} else if( e && typeof( e.pageX == 'number') ) {
mouseX = e.pageX;
mouseY = e.pageY;
} else {
mouseX = 0;
mouseY = 0;
}
locateMap();
if( window.Iterator ) {
//--- Firefox - do not add scroll
} else {
//--- IE6+, Opera, Safari add scroll
mouseX += Xscroll;
mouseY += Yscroll;
}
isOverMap = true;
currentMouseX = mouseX;
currentMouseY = mouseY;
if( currentMouseX < mapLeftX ) { currentMouseX = mapLeftX; isOverMap = false; }
if( currentMouseX > mapRightX ) { currentMouseX = mapRightX; isOverMap = false; }
if( currentMouseY < mapTopY ) { currentMouseY = mapTopY; isOverMap = false; }
if( currentMouseY > mapBottomY ) { currentMouseY = mapBottomY; isOverMap = false; }
if( lastMouseX != currentMouseX || lastMouseY != currentMouseY ) {
lastMouseX = currentMouseX;
lastMouseY = currentMouseY;
// is over menu???
if( mapMeasure == '1' ) {
if( !mapMeasureOverScrollBar() && !mapMeasureFinish ) {
if( mouseDown == 1 ) {
} else {
//-- bring focus to measure tool window if outside map area
if( overScrollBar ) { overScrollBar = false; openMeasureTool(lastMouseMode); }
}
} else {
overScrollBar = true;
}
zbCrossLines('red');
} else {
if( map_pan == 1 ) {
//-- Pan button
if( mouseDown == 1 ) {
if( zbLeft === 0 && zbTop === 0 ) {
zbLeft = currentMouseX;
zbTop = currentMouseY;
}
zb.clear();
xLeft = zbLeft;
xRight = currentMouseX;
if( xRight < xLeft ) { xLeft = currentMouseX; xRight = zbLeft; }
yTop = zbTop;
yBottom = currentMouseY;
if( map_s <= zoomMin ) {
zb.setColor("white");
zb.fillRect( xLeft, yTop, 300, 100);
zb.setColor("black");
zb.setFont("arial","25px",Font.BOLD);
zb.drawString( 'Cannot Zoom In further', xLeft+5, yTop );
zb.drawString( 'with Base Map choice', xLeft+5, yTop+35 );
zb.drawString( document.mapform.bm.value, xLeft+5, yTop+70 );
zb.paint();
}
if( yBottom < yTop ) { yTop = currentMouseY; yBottom = zbTop; }
if( xRight-xLeft > 3 && yBottom-yTop > 3 ) {
//-- Set Color for ZoomBox
zb.setColor("blue");
zb.setStroke(4);
zb.drawRect( xLeft, yTop, xRight-xLeft, yBottom-yTop );
zb.paint();
var dateMouseDown = new Date();
timeMouseDown = dateMouseDown.getMilliseconds();
timeMouseDown += dateMouseDown.getSeconds() * 1000.0;
timeMouseDown += dateMouseDown.getMinutes() * 60000.0;
}
} else {
if( xRight !== 0 ) {
zbLeft = 0;
zbTop = 0;
xRight = 0;
yTop = 0;
xLeft = 0;
yBottom = 0;
}
zbCrossLines();
}
} else {
//-- ID button
zbCrossLines();
}
}
}
return ( !isOverMap );
//-- private functions -----------------------------------------------------------------------
function zbCrossLines(color) {
var message;
if( isOverMap ) {
var utmE = parseInt( map_min_utmx + ((currentMouseX - Xoffset - adjustPointerX )* map_pixel) + 0.5,10);
var utmN = parseInt( map_max_utmy - ((currentMouseY - Yoffset - adjustPointerY )* map_pixel) + 0.5,10);
message = utmE + ' ' + utmN + ' ' + map_dpz;
setNAD27();
cursorLL = UTM2LL(message);
if( mouseDown == 1 ) {
if( mouseMode == '2' ) {
mmA.drawLine(mouseX, mouseY, lastX, lastY);
mmA.paint();
xList = ',' + mouseX + xList;
yList = ',' + mouseY + yList;
lastX = mouseX;
lastY = mouseY;
mapMeasureDDList = ',' + cursorLL + mapMeasureDDList;
}
}
if( map_coord == 'UTM27' ) {
message += ' NAD27';
} else if( map_coord == 'LL' ) {
message = dd2dms(cursorLL);
} else if( map_coord == 'UTM83' ) {
setNAD83();
message = LL2UTM(cursorLL) + ' NAD83';
setNAD27();
} else if( map_coord == 'DD') {
LLArray = cursorLL.split(' ');
message = nDecString(LLArray[0],6) + ' ' + nDecString(LLArray[1],6);
} else {
}
document.getElementById('divCursorPosition').innerHTML = ' ' + message;
var x = posLeft();
var y = posTop();
if( x < 235 ) {
x = 0;
} else {
x -= 235;
if( y < 80 ) { y += 80; }
}
if( y<80 ) {
y = 0;
} else if( y < 130 ) {
y = 50;
} else {
y -= 80;
}
if( x || y ) { styleObject('divCursorPosition').backgroundColor = '#FFFFCC'; } //-- #FFFFCC light yellow
else { styleObject('divCursorPosition').backgroundColor = 'transparent'; }
styleObject('divCursorPosition').left = x + 'px';
styleObject('divCursorPosition').top = y + 'px';
if( color ) {
zb.clear();
zb.setColor(color);
zb.setStroke(1);
zb.drawLine( currentMouseX, mapTopY, currentMouseX, mapBottomY );
zb.drawLine( mapLeftX, currentMouseY, mapRightX, currentMouseY );
zb.paint();
}
} else if( !isOverMap ) {
message = '';
zb.clear();
document.getElementById('divCursorPosition').innerHTML = message;
styleObject('divCursorPosition').backgroundColor = 'transparent';
}
return true;
}
}
//-----------------------------------------------------------------------------------
function testMouseDown(e) {
if( !e && document.event ) { e = document.event; }
var x, y;
mouseDown = 0;
mouseCoords(e);
//--- mapMeasure is set using measure button
mapMeasure = document.mapform.measure.value;
if ( mapMeasureOverScrollBar() ) { return( mapMeasure!='1' ); }
var rightclick;
if( !e ) { e = window.event; }
if( e.which ) { rightclick = ( e.which == 3 ); }
else if( e.button ) { rightclick = ( e.button == 2 ); }
if( rightclick ) { return( mapMeasure!='1' ); }
x = mouseX;
y = mouseY;
if( x < mapLeftX ) { x = mapLeftX; }
if( x > mapRightX ) { x = mapRightX; }
if( y < mapTopY ) { y = mapTopY; }
if( y > mapBottomY ) { y = mapBottomY; }
if( mouseDown != 1 && x > mapLeftX && x < mapRightX && y > mapTopY && y < mapBottomY ) {
//--- preventDefault to prevent default mouse drag events so that we can drag a box for zoom in.
if( e.preventDefault ) { e.preventDefault(); }
isOverMap = true;
if( mapMeasureFinish ) { measureTool('4'); }
mouseDown = 1;
if( mapMeasure == '1' ) {
if( xList === '' && mapMeasureDDListArray.length === 0 ) { mmA.clear(); }
if( mouseMode == '2' ) {
//-- tooltip tt_disabled is defined when wz_tooltip.js is loaded. Disable tooltip from grabbing focus
if( typeof tt_disabled != 'undefined' ) { tt_disabled = 1; }
}
mapMessageMaxX = 0;
if( lastX != x || lastY != y ) {
xList = ',' + x + xList;
yList = ',' + y + yList;
mapMeasureDDList = ',' + cursorLL + mapMeasureDDList;
lastX = x;
lastY = y;
mmA.clear();
measureDrawPoint( mmA, lastX, lastY, "lightgreen" );
mmA.paint();
}
//-- prepare for "Drag Your Mouse"
if( mouseMode == '2' ) {
mmA.setColor("blue");
mmA.setStroke(2);
}
}
}
var dateMouseDown = new Date();
timeMouseDown = dateMouseDown.getMilliseconds();
timeMouseDown += dateMouseDown.getSeconds() * 1000.0;
timeMouseDown += dateMouseDown.getMinutes() * 60000.0;
// return false allows process in mouseCoords to continue
// return( mapMeasure!='1' );
return ( !isOverMap );
}
//-----------------------------------------------------------------------------------
function testMouseUp(e) {
var i, cX, cY;
//-- tt_disabled is defined when wz_tooltip.js is loaded. enable tooltip to get focus
if( typeof tt_disabled != 'undefined' ) { tt_disabled = 0; }
if( mouseDown == 1 ) {
mouseDown = 0;
var dateMouseDown = new Date();
timeMouseUp = dateMouseDown.getMilliseconds();
timeMouseUp += dateMouseDown.getSeconds() * 1000.0;
timeMouseUp += dateMouseDown.getMinutes() * 60000.0;
if( mapMeasure != '1' ) {
//--- "click map" when not measuring
//-- timing left over from earlier programming; can be removed.
//-- "click" event must be less than 1000 miliseconds between mouseDown and mouseUp
//-- "box" event must be less than 4500 miliseconds between mouseDown and mouseUp
var maxTimeDown = 1500;
if( (xRight-xLeft) > 3 && (yBottom-yTop) > 3 ) {
//-- prevent mouse slip becomming zoom-in
if( timeMouseUp-timeMouseDown < 40 ) {
//alert( "mouseTime='" + (timeMouseUp-timeMouseDown) + "'");
zb.clear();
xLeft = parseInt((xLeft+xRight)/2,10);
yTop = parseInt((yTop+yBottom)/2,10);
xRight = xLeft;
yBottom = yTop;
mouseX = xLeft;
mouseY = yTop;
} else {
maxTimeDown = 4500;
}
//alert( timeMouseUp-timeMouseDown );
}
if( timeMouseUp-timeMouseDown < maxTimeDown ) {
lastX = mouseX;
lastY = mouseY;
click_map(mapIdName,mouseX,mouseY);
}
zb.clear();
} else {
if( mouseMode == '1' || mouseMode == '2' ) {
if( ( mapMeasureDDListArray[0] != mapMeasureDDList ) ) {
mapMeasureAddList();
}
measureToolDrawB();
xList = '';
yList = '';
mapMeasureDDList = '';
}
}
} else {
//--- mouseDown != 1
}
return( 0 && mapMeasure!='1' );
}
//-----------------------------------------------------------------------------------
function click_map(idName,mX,mY) {
close_windows(); zb.clear();
var xcoord, ycoord, idCoordinates, eX,eY,temp;
var f, s, t, z, p, topx, topy;
if( !idName ) { idName = 'mapImage'; }
// mouseX,mouseY global var assigned by document.onmousedown = mouseCoords()
if( mX == null ) { mX = mouseX; }
if( mY == null ) { mY = mouseY; }
var press = document.mapform.pan.value;
if( idName == 'VaLocator' ) {
//-- fixed image on left of mapform header
p = 9240;
topx = 181760;
topy = 4500642;
z = 17;
press = 1;
xRight=0;
xLeft=0;
yTop=0;
yBottom=0;
} else {
//-- map image
p = map_pixel;
topx = map_min_utmx;
topy = map_max_utmy;
z = map_dpz;
}
XYoffset(eval('document.images.' + idName));
XYscroll();
var xCursorError = 0;
var yCursorError = 0;
if( document.all ) {
// ie 6.0.3+ by trial and error
xCursorError = -p;
yCursorError = p;
xCursorError = xCursorError * 3;
yCursorError = yCursorError * 3;
} else {
// FireFox & other
xCursorError = -p;
yCursorError = 0;
}
var utmE,utmN,utmW,utmS;
if( ( press > 0 ) && (xRight-xLeft) > 3 && (yBottom-yTop) > 3 ) {
if( 0 && map_s <= zoomMin ) {
zb.clear();
zb.setColor("white");
zb.fillRect( xLeft, yTop, 300, 100);
zb.setColor("black");
zb.setFont("arial","25px",Font.BOLD);
zb.drawString( 'Cannot Zoom In further', xLeft+5, yTop );
zb.drawString( 'with Base Map choice', xLeft+5, yTop+35 );
zb.drawString( document.mapform.bm.value, xLeft+5, yTop+70 );
zb.paint();
zb.setColor("red");
return true;
}
xLeft -= Xoffset;
xRight -= Xoffset;
yTop -= Yoffset;
yBottom -= Yoffset;
utmW = topx + (xLeft * p) + xCursorError;
utmN = topy - (yTop * p) + yCursorError;
utmE = topx + (xRight * p) + xCursorError;
utmS = topy - (yBottom * p) + yCursorError;
zoomPixel = (utmE-utmW)/mapWidth;
var pixelN = (utmN-utmS)/mapHeight;
if( pixelN < zoomPixel ) { zoomPixel = pixelN; }
if( zoomPixel < Math.pow(2,zoomMin-10)*0.666 ) { zoomPixel = Math.pow(2,zoomMin-10)*0.666; }
s = 10;
if( zoomPixel > 256.0 ) { s = 20;
} else if( zoomPixel > 128.0 ) { s = 19;
} else if( zoomPixel > 64.0 ) { s = 18;
} else if( zoomPixel > 32.0 ) { s = 17;
} else if( zoomPixel > 16.0 ) { s = 16;
} else if( zoomPixel > 8.0 ) { s = 15;
} else if( zoomPixel > 4.0 ) { s = 14;
} else if( zoomPixel > 2.0 ) { s = 13;
} else if( zoomPixel > 1.0) { s = 12;
} else if( zoomPixel > 0.5 ) { s = 11;
}
if( map_s <= zoomMin ) {
zb.clear();
zb.setColor("white");
zb.fillRect( xLeft, yTop, 300, 100);
zb.setColor("black");
zb.setFont("arial","25px",Font.BOLD);
zb.drawString( 'Cannot Zoom In further', xLeft+5, yTop );
zb.drawString( 'with Base Map choice', xLeft+5, yTop+35 );
zb.drawString( document.mapform.bm.value, xLeft+5, yTop+70 );
zb.paint();
zb.setColor("red");
return true;
}
doNotReplaceMap ++;
setMapScale(s-1);
map_pixel = zoomPixel;
document.mapform.p.value = map_pixel;
doNotReplaceMap --;
//###
//### remeber to account for scalebar and reported pixel size
//###
zoomPixel = nDecString(zoomPixel,1+(zoomPixel < 2));
document.images.MapScale.src = 'mapscale.asp?s=' + map_s + '&p=' + zoomPixel;
document.getElementById('spanNotePixelSize').innerHTML = zoomPixel;
utmE = (utmW+utmE)/2;
utmN = (utmS+utmN)/2;
idCoordinates = utmE + ' ' + utmN + ' ' + z;
map_dpLL = UTM2LL( idCoordinates );
//--- box
} else {
//--- point
// these calculations have been replaced by cursorLL from routine testMouseDown unless VaLocator
if( idName == 'VaLocator' ) {
xcoord = mX - Xoffset;
ycoord = mY - Yoffset;
utmE = topx + (xcoord * p) + xCursorError;
utmN = topy - (ycoord * p) + yCursorError;
idCoordinates = utmE + ' ' + utmN + ' ' + z;
map_dpLL = UTM2LL( idCoordinates );
} else {
//--- cursor location defined in routine zbCrossLines of testMouseDown
map_dpLL = cursorLL;
}
}
map_dpUTM17 = LL2UTM( map_dpLL, 17 );
idCoordinates = map_dpUTM17;
//--- When the base map is NAD 1983, it is displayed by httpMapImage with a shift to represent NAD 1927.
//--- therefore the point clicked is always NAD 1927 even if the base map is NAD 1983.
//--- therefore do not want to convert here
// if( bm_nad == 1983 ) {
// utmE -= 17;
// utmN -= 219;
// } // nad83 to nad27 conversion
if( ( document.mapform.t.value == '1'
|| document.mapform.t.value == '2'
|| document.mapform.t.value == 'N'
|| document.mapform.t.value == 'O' ) ) {
//--- check for change in UTM Zone when terraserver images
idCoordinates = LL2UTM( map_dpLL );
}
var xyArray = idCoordinates.split(' ');
utmE = parseInt(xyArray.shift(),10);
utmN = parseInt(xyArray.shift(),10);
z = parseInt(xyArray.shift(),10);
idCoordinates = utmE + ' ' + utmN + ' ' + z;
if ( press > 0 ) {
measureDrawPoint( mmA, mX, mY, "lightgreen" );
mmA.paint();
if( press == 2 ) { document.mapform.r.value = 1; }
document.mapform.dp.value = idCoordinates;
//### changed 8/1505 abj3 map_dpUTM17 = idCoordinates;
map_dpUTM17 = LL2UTM( map_dpLL, 17 );
document.mapform.dp_utm17.value = map_dpUTM17;
if( (display_only != '1' && shift == 1) ) {
document.mapform.poi.value = idCoordinates;
map_poiUTM17 = map_dpUTM17;
map_porUTM17 = map_poiUTM17;
map_poiLL = map_dpLL;
document.mapform.poi_utm17.value = map_poiUTM17;
}
map_min_utmx = utmE - Math.round(mapWidth*map_pixel/2);
map_max_utmy = utmN + Math.round(mapHeight*map_pixel/2);
map_dpz = z;
document.mapform.dpz.value = map_dpz;
search_point_comment='';
mapMeasureCoord(map_coord);
replaceMap();
} else {
//--- ID Function
measureDrawPoint( mmA, mX, mY, "lightgreen" );
mmA.paint();
mapReport(idCoordinates);
}
}
//-----------------------------------------------------------------------------------
function mapReport(idCoordinates) {
//--- popup VaFWIS Map Report window
if( idCoordinates == null ) { idCoordinates = savedIdCoordinates; }
var xyArray = idCoordinates.split(',');
if( xyArray.length > 500 ) {
xyArray.length = 500;
idCoordinates = xyArray.join(',');
}
xyArray = null;
savedIdCoordinates = idCoordinates;
//--- establish distance for ID function
map_s = document.mapform.s.value;
var click_map_dist = 10;
if( map_s>16 ) { click_map_dist = 8; }
if( map_s>18 ) { click_map_dist = 4; }
click_map_dist = parseInt( click_map_dist * map_pixel,10 );
var url = '';
if( document.getElementById("mr_tn") ) {
//-- IDWindow.html - submit a form from its parent window
//-- populate formMapReport values
url = "IDWindow.html?name=formMapReport";
document.getElementById("mr_tn").value = tn;
document.getElementById("mr_opoi").value = opoi;
document.getElementById("mr_poi").value = idCoordinates;
document.getElementById("mr_pos").value = map_poiUTM17;
document.getElementById("mr_dist").value = click_map_dist;
document.getElementById("mr_overlay_list").value = overlay_list;
document.getElementById("mr_coord").value = map_coord;
document.getElementById("mr_gap").value = gap;
}
var width = '350';
var height = '550';
if( window.document.mapform && window.document.mapform.idPageSize ) {
var sizeArray = window.document.mapform.idPageSize.value.split(',');
width = sizeArray[0];
height = sizeArray[1];
}
//-- prevent "old" cached version
var rExp = / /g;
url += '&version=' + parseInt(((new Date()).getTime())/1000/60/60/24,10);
child_window = window.open(url.replace(rExp,'+'),'IDWindow',
'top=2,left=0,width='+width+',height='+height+',scrollbars=yes,resizable=yes,toolbar=yes');
child_window.focus();
}
//-----------------------------------------------------------------------------------
function sendFunc() {
var poiValue = document.mapform.poi.value;
close_windows();
if( window.opener && window.opener.document && window.opener.document.get_poi_form ) {
if( 0 && (map_coord == 'LL' || map_coord == 'DD') ) {
} else {
poiValue = document.mapform.poi_utm17.value;
}
window.opener.document.get_poi_form.poi_val.value = poiValue;
window.opener.document.get_poi_form.distance.focus();
self.opener.mapActions(poiValue,map_coord);
}
close_windows();
window.close();
}
//-----------------------------------------------------------------------------------
function CancelFunc() {
close_windows();
if( window.opener && window.opener.document && window.opener.document.get_poi_form ) {
window.opener.document.get_poi_form.distance.focus();
}
window.close();
}
//-----------------------------------------------------------------------------------
function display_dataRecord() {
//-- set display point to coordinate in opoi_id record
map_dpUTM17 = map_itemUTM17;
document.mapform.dp.value = map_dpUTM17;
var xyArray;
if( map_t == 1 || map_t == 2 || map_t == 'N' || map_t == 'O' ) {
xyArray = LL2UTM(UTM2LL(map_dpUTM17)).split(' ');
} else {
xyArray = map_dpUTM17.split(' ');
}
var utmE = parseInt(xyArray.shift(),10);
var utmN = parseInt(xyArray.shift(),10);
map_dpz = parseInt(xyArray.shift(),10);
document.mapform.dpz.value = map_dpz;
map_min_utmx = utmE - Math.round(mapWidth*map_pixel/2);
map_max_utmy = utmN + Math.round(mapHeight*map_pixel/2);
replaceMap();
}
//-----------------------------------------------------------------------------------
function set_bm(basemap) {
//-- basemap has changed
document.mapform.bm.value='';
if( !basemap ) { basemap = basemap=document.mapform.select_bm.value; }
map_t = 'A';
if(basemap == 'T') {map_t='2';}
else if(basemap == 'S') {map_t='1';}
else if(basemap == 'C') {map_t='3';}
else if(basemap == 'H') {map_t='4';}
else if(basemap == 'TI') {map_t='6';}
else if(basemap == 'Topography') {map_t='2';}
else if(basemap == 'BW Aerial Photography') {map_t='1';}
else if(basemap == 'County line map') {map_t='3';}
else if(basemap == 'NRCS Hydrography') {map_t='4';}
else if(basemap == 'TopoIndex') {map_t='6';}
else if(basemap == 'County - Quadrangle') {map_t='A';}
else if(basemap == 'White') {map_t='0';}
else if(basemap == 'County_A') {map_t='A';}
else if(basemap == 'HydroUnit') {map_t='B';}
else if(basemap == 'HydroDrain') {map_t='C';}
else if(basemap == 'HU6 Hydrography') {map_t='D';}
else if(basemap == 'Color Aerial Photography') {map_t='O';}
else if( '0123456789ABCDO'.indexOf(basemap,0)>-1 ) {map_t=basemap;}
document.mapform.t.value = map_t;
//-- there are six options to the select list control 0-5 with the last
//-- (5) replaced with one not available in 0-4
var i = 5;
if(map_t === '0') {basemap='White';}
else if(map_t == '1') {basemap='BW Aerial Photography'; i = 2;}
else if(map_t == '2') {basemap='Topography'; i = 0;}
else if(map_t == '3') {basemap='County line map';}
else if(map_t == '4') {basemap='NRCS Hydrography';}
else if(map_t == '6') {basemap='TopoIndex';}
else if(map_t == 'A') {basemap='County - Quadrangle'; i = 3;}
else if(map_t == 'B') {basemap='HydroUnit';}
else if(map_t == 'C') {basemap='HydroDrain';}
else if(map_t == 'D') {basemap='HU6 Hydrography'; i = 4;}
else if(map_t == 'O') {basemap='Color Aerial Photography'; i = 1;}
if( i == 5 ) { document.mapform.select_bm.options[i] = new Option(basemap,basemap,false,true); }
document.mapform.select_bm.options[i].selected=true;
document.mapform.bm.value = basemap;
var xyArray = LL2UTM(UTM2LL(document.mapform.poi_utm17.value,17)).split(' ');
var poiE = parseInt(xyArray.shift(),10);
var poiN = parseInt(xyArray.shift(),10);
var cmz = parseInt(xyArray.shift(),10);
var cmx = parseInt( poiE/(map_pixel*200),10);
var cmy = parseInt( poiN/(map_pixel*200),10);
if( !cmz ) { cmz = 17; }
if(map_t === '0') { bm_nad=1927; }
else if(map_t == '1') { bm_nad=1983; }
else if(map_t == '2') { bm_nad=1983; }
else if(map_t == '3') { bm_nad=1927; cmz = '17'; }
else if(map_t == '4') { bm_nad=1927; cmz = '17'; }
else if(map_t == '6') { bm_nad=1927; cmz = '17'; }
else if(map_t == '9') { bm_nad=1983; cmz = '17'; }
else if(map_t == 'A') { bm_nad=1983; cmz = '17'; }
else if(map_t == 'B') { bm_nad=1983; cmz = '17'; }
else if(map_t == 'C') { bm_nad=1983; cmz = '17'; }
else if(map_t == 'D') { bm_nad=1983; cmz = '17'; }
else if(map_t == 'N') { bm_nad=1983; }
else if(map_t == 'O') { bm_nad=1983; }
else { bm_nad=1927; cmz = '17'; }
if( cmz != map_dpz ) {
//-- switch to UTM Zone cmz
xyArray = LL2UTM(UTM2LL(map_min_utmx + ' ' + map_max_utmy + ' ' + map_dpz),cmz).split(' ');
map_min_utmx = parseInt(xyArray.shift(),10);
map_max_utmy = parseInt(xyArray.shift(),10);
map_dpz = cmz;
document.mapform.dpz.value = map_dpz;
}
setMapScale();
}
//-----------------------------------------------------------------------------------
function replace_bm(basemap) {
if( !basemap ) {
basemap = basemap=document.mapform.select_bm.selectedIndex;
basemap = basemap=document.mapform.select_bm[basemap].text;
}
basemap = basemap.split('\n')[0];
if( basemap != document.mapform.bm.value ) {
doNotReplaceMap += 1;
set_bm(basemap);
doNotReplaceMap -= 1;
replaceMap();
}
}
//-----------------------------------------------------------------------------------
function display_poi() {
var xyArray;
map_dpUTM17 = map_poiUTM17;
//?--- map_porUTM17 = map_poiUTM17;
document.mapform.dp.value = map_poiUTM17;
if( map_t == 1 || map_t == 2 || map_t == 'N' || map_t == 'O' ) {
xyArray = LL2UTM(map_poiLL).split(' ');
} else {
xyArray = map_poiUTM17.split(' ');
}
var utmE = parseInt(xyArray.shift(),10);
var utmN = parseInt(xyArray.shift(),10);
map_dpz = parseInt(xyArray.shift(),10);
document.mapform.dpz.value = map_dpz;
map_min_utmx = utmE - Math.round(mapWidth*map_pixel/2);
map_max_utmy = utmN + Math.round(mapHeight*map_pixel/2);
replaceMap();
}
//-----------------------------------------------------------------------------------
function mapSourceComment() {
var map_source_comment = '';
var xyArray = LL2UTM(UTM2LL(document.mapform.poi_utm17.value,17)).split(' ');
var poiE = parseInt(xyArray.shift(),10);
var poiN = parseInt(xyArray.shift(),10);
var cmz = parseInt(xyArray.shift(),10);
var cmx = parseInt( poiE/(map_pixel*200),10);
var cmy = parseInt( poiN/(map_pixel*200),10);
if( !cmz ) { cmz = 17; }
if(map_t === '0') { bm_nad=1927; }
else if(map_t == '1') { bm_nad=1983; }
else if(map_t == '2') { bm_nad=1983; }
else if(map_t == '3') { bm_nad=1927; cmz = '17'; }
else if(map_t == '4') { bm_nad=1927; cmz = '17'; }
else if(map_t == '6') { bm_nad=1927; cmz = '17'; }
else if(map_t == '9') { bm_nad=1983; cmz = '17'; }
else if(map_t == 'A') { bm_nad=1983; cmz = '17'; }
else if(map_t == 'B') { bm_nad=1983; cmz = '17'; }
else if(map_t == 'C') { bm_nad=1983; cmz = '17'; }
else if(map_t == 'D') { bm_nad=1983; cmz = '17'; }
else if(map_t == 'N') { bm_nad=1983; }
else if(map_t == 'O') { bm_nad=1983; }
else { bm_nad=1927; cmz = '17'; }
if( map_t === '0' ) {
map_source_comment='2003 Map data managed by Virginia Department of Game and Inland Fiosheries.';
}
else if( map_t == '1') {
map_source_comment = "Black & White USGS Aerial Photography ";
map_source_comment += "(see terraserver-usa.com for details)";
}
else if( map_t == '2' ) {
if(map_s<13) {
map_source_comment = "Topographic maps from TOPO! copyright 2006";
map_source_comment += " (see ";
map_source_comment += "National Geographic for details)";
}
else if( map_s<15 ) {
map_source_comment="USGS 1:100,000 topographic maps ";
map_source_comment += "(see terraserver-usa.com for details)";
}
else {
map_source_comment="USGS 1:250,000 topographic maps ";
map_source_comment += "(see terraserver-usa.com for details)";
}
}
else if( map_t == '3' ) { map_source_comment='2003 Va. DGIF city/county digital lines';
}
else if( map_t == '4' ) { map_source_comment='2003 Va. DGIF hydrography digital lines';
}
else if( map_t == '6' ) { map_source_comment='1984 USGS index to Virginia 1:24,000 topographic maps';
}
else if( map_t == '9' ) { map_source_comment='2003 Va. DGIF Virginia Basemap ';
}
else if( map_t == 'A' ) { map_source_comment='2003 Va. DGIF Virginia Basemap ';
}
else if( map_t == 'B' ) { map_source_comment='2003 Va. DGIF Virginia Basemap ';
}
else if( map_t == 'C' ) { map_source_comment='2003 Va. DGIF Virginia Basemap ';
}
else if( map_t == 'D' ) { map_source_comment='2009 Va. DGIF National 6th Order Watersheds for Virginia ';
}
else if( map_t == 'O' ) { map_source_comment='Color Aerial Photography 2002 - Virginia Base Mapping Program,';
map_source_comment+=' Virginia Geographic Information Network ';
}
if( map_source_comment !== '') {
document.getElementById('spanNoteBasemap').innerHTML =
'Base Map source: ' + map_source_comment;
}
}
//-----------------------------------------------------------------------------------
function set_rings(parm){
if( typeof parm == 'undefined' ) {
parm = 0;
if( document.mapform.ret[0].checked === true ) { parm = 0; } else { parm = 1; }
}
if( parm<0 ) { parm=0; }
if( parm>1 ) { parm=1; }
document.mapform.ret[parm].checked = true;
//--- Ring diameters
var radius, diam, radius4, diam4;
//--- Amy wants old system -- 1/4 mile for eagle nests
if(0) {
if( map_coord == 'LL' || map_coord == 'DD' ) {
if( map_pixel < 2 ) { radius=61; ringDescription = '50 feet and 200 feet'; // 10
} else if (map_pixel<4) { radius=122; ringDescription = '100 feet and 400 feet'; // 11
} else if (map_pixel<8) { radius=244; ringDescription = '200 feet and 800 feet'; // 11
} else if (map_pixel<16) { radius=488; ringDescription = '400 feet and 1600 feet'; // 13
} else if (map_pixel<32) { radius=805; ringDescription = '1/8 mileand 1/2 mile'; // 14
} else if (map_pixel<64) { radius=1609; ringDescription = '1/4 mile and 1 miles'; // 15
} else if (map_pixel<128) { radius=3218; ringDescription = '1/2 mile and 2 miles'; // 16
} else if (map_pixel<256) { radius=8045; ringDescription = '1.25 mile and 5 miles'; // 17
} else if (map_pixel<512) { radius=16090; ringDescription = '2.5 miles and 10 miles'; // 18
} else if (map_pixel<1024) { radius=32180; ringDescription = '5 miles and 20 miles'; // 19
} else { radius=64360; ringDescription = '10 miles and 40 miles'; // >=20
}
} else {
if( map_pixel < 2 ) { radius=50; ringDescription = '12.5 meters and 50 meters'; // 10
} else if (map_pixel<4) { radius=100; ringDescription = '25 meters and 100 meters'; // 11
} else if (map_pixel<8) { radius=200; ringDescription = '50 meters and 200 meters'; // 12
} else if (map_pixel<16) { radius=400; ringDescription = '100 meters and 400 meters'; // 13
} else if (map_pixel<32) { radius=800; ringDescription = '200 meters and 800 meters'; // 14
} else if (map_pixel<64) { radius=2000; ringDescription = '1/2 Kilometer and 2 Kilometers'; // 15
} else if (map_pixel<128) { radius=4000; ringDescription = '1 Kilometers and 4 Kilometers'; // 16
} else if (map_pixel<256) { radius=8000; ringDescription = '2 Kilometers and 8 Kilometers'; // 17
} else if (map_pixel<512) { radius=16000; ringDescription = '4 Kilometers and 16 Kilometers'; // 18
} else if (map_pixel<1024) { radius=32000; ringDescription = '8 Kilometers and 32 Kilometers'; // 19
} else { radius=50000; ringDescription = '12.5 Kilometers and 50 Kilometers'; // >=20
}
}
}
//--- POI Ring diameters
if( map_coord == 'LL' || map_coord == 'DD' ) {
if (map_pixel<2) { radius=201; ringDescription = '1/8 mile and 1/32 mile'; // 10
} else if (map_pixel<=4) { radius=402; ringDescription = '1/4 mile and 1/16 mile'; // 11,12
} else if (map_pixel<=8) { radius=805; ringDescription = '1/2 mile and 1/8 mile'; // 13
} else if (map_pixel<=32) { radius=1609; ringDescription = '1 mile and 1/4 mile'; // 14,15
} else if (map_pixel<=128) { radius=6436; ringDescription = '4 miles and 1 mile'; // 16,17
} else if (map_pixel<=512) { radius=25744; ringDescription = '16 miles and 4 miles'; // 18,19
} else if (map_pixel<=4096) { radius=51488; ringDescription = '32 miles and 8 miles'; // 20
} else { radius=102976; ringDescription = '64 miles and 16 miles'; // >20
}
} else {
if (map_pixel<2) { radius=100; ringDescription = '100 meters and 25 meters'; // 10
} else if (map_pixel<=4) { radius=200; ringDescription = '200 meters and 50 meters'; // 11,12
} else if (map_pixel<=8) { radius=800; ringDescription = '800 meters and 200 meters'; // 13
} else if (map_pixel<=32) { radius=2000; ringDescription = '2 kilometers and 1/4 kilometer'; // 14,15
} else if (map_pixel<=128) { radius=6000; ringDescription = '6 kilometers and 1.5 kilometer'; // 16,17
} else if (map_pixel<=512) { radius=20000; ringDescription = '20 kilometers and 5 kilometer'; // 18,19
} else if (map_pixel<=4096) { radius=40000; ringDescription = '40 kilometers and 10 kilometer'; // 20
} else { radius=100000; ringDescription = '100 kilometers and 25 kilometer'; // >20
}
}
document.getElementById('spanRings').innerHTML = ringDescription + ' at the ' + porDescription + '';
document.mapform.pointdescription.value = ringDescription + ' at the ' + porDescription + '';
overlay_list = document.mapform.overlay_list.value.replace(/ /g,'');
if( parm === 0 ) {
diam = radius*2;
radius4 = Math.round(radius/4);
diam4 = Math.round(diam/4);
rings = radius + '%2C' + radius4;
if( overlay_list.indexOf('Position',0) < 0 ) {
if( overlay_list !== '' ) { overlay_list += ','; }
overlay_list += 'Position';
}
} else {
var i = overlay_list.indexOf('Position',0);
if(i > -1 ) {
if( i === 0 ) {
overlay_list = overlay_list.substr(9,overlay_list.length-9);
} else {
overlay_list = overlay_list.substr(0,i-1) + overlay_list.substr(i+8,overlay_list.length-i-8);
}
}
rings = '';
}
document.mapform.overlay_list.value = overlay_list;
setOverlayLegend();
}
//-----------------------------------------------------------------------------------
function set_search(parm){
if( map_dist > 0 ) {
if( typeof parm == 'undefined' ) {
parm = 0;
if( document.mapform.search[0].checked === true ) { parm = 0; } else { parm = 1; }
}
if( parm<0 ) { parm=0; }
if( parm>1 ) { parm=1; }
document.mapform.search[parm].checked = true;
if( parm === 0 ) {
if( overlay_list.indexOf('Search',0) < 0 ) {
if( overlay_list !== '' ) { overlay_list += ','; }
overlay_list += 'Search';
}
} else {
var i = overlay_list.indexOf('Search',0);
if(i > -1 ) {
if( i === 0 ) {
overlay_list = overlay_list.substr(7,overlay_list.length-7);
} else {
overlay_list = overlay_list.substr(0,i-1) + overlay_list.substr(i+6,overlay_list.length-i-6);
}
}
}
document.mapform.overlay_list.value = overlay_list;
}
setOverlayLegend();
}
//-----------------------------------------------------------------------------------
function setOverlayLegend(list) {
if( !list ) { list = ''; }
overlay_list = document.mapform.overlay_list.value;
if( overlay_list != list || overlay_list === '' ) {
if( list !== '' ) { overlay_list = list; }
document.getElementById('overlaySplit').innerHTML = overlay_list.replace(/ /g,'').replace(/,/g,', ');
document.mapform.overlay_list.value = overlay_list.replace(/ /g,'');
var legend_dist = '';
if( map_coord == 'LL' || map_coord == 'DD' ) {
legend_dist = Math.round( (map_dist)/16.09 )/100 + '+mile+radius';
} else {
legend_dist = map_dist + '+meter+radius';
}
var url = 'OverlayLegend.asp?overlay=' + overlay_list;
url += '&legend_dist=' + legend_dist;
url += '&width=' + bar_width;
url += '&pixel=' + map_pixel;
url += '&opoi=' + opoi;
url += '&have_list=' + have_list;
if( rings !== '' ) { url += '&rings=' + ringDescription + ' at the ' + porDescription; }
document.images.overlayLegend.src = url.replace(/ /g,'+');
}
}
//-----------------------------------------------------------------------------------
function setMapScale(s) {
if( !s ) { s = document.mapform.s.value; }
map_s = parseInt(s,10);
//--- Limit zoom by basemap type
map_t = document.mapform.t.value;
if(map_t === '0') { if(s<10){map_s=10;} if(s>20){map_s=20;} zoomMin=10; zoomMax=20; }
else if(map_t == '1') { if(s<10){map_s=10;} if(s>16){map_s=16;} zoomMin=10; zoomMax=16; }
else if(map_t == '2') { if(s<11){map_s=11;} if(s>17){map_s=17;} zoomMin=11; zoomMax=17; }
else if(map_t == '3') { if(s<16){map_s=16;} if(s>20){map_s=20;} zoomMin=16; zoomMax=20; }
else if(map_t == '4') { if(s<16){map_s=16;} if(s>20){map_s=20;} zoomMin=16; zoomMax=20; }
else if(map_t == '6') { if(s<16){map_s=16;} if(s>20){map_s=20;} zoomMin=16; zoomMax=20; }
else if(map_t == '9') { if(s<16){map_s=16;} if(s>20){map_s=20;} zoomMin=16; zoomMax=20; }
else if(map_t == 'A') { if(s<16){map_s=16;} if(s>20){map_s=20;} zoomMin=16; zoomMax=20; }
else if(map_t == 'B') { if(s<15){map_s=15;} if(s>20){map_s=20;} zoomMin=15; zoomMax=20; }
else if(map_t == 'C') { if(s<15){map_s=15;} if(s>20){map_s=20;} zoomMin=15; zoomMax=20; }
else if(map_t == 'D') { if(s<15){map_s=15;} if(s>20){map_s=20;} zoomMin=15; zoomMax=20; }
else if(map_t == 'O') { if(s<10){map_s=10;} if(s>20){map_s=20;} zoomMin=10; zoomMax=20; }
else { if(s<10){map_s=10;} if(s>20){map_s=20;} zoomMin=10; zoomMax=20; }
document.mapform.s.value = map_s;
var url = 'ZoomSelect.asp?s=' + map_s;
url += '&min=' + zoomMin + '&max=' + zoomMax;
document.images.ZoomSelect.src = url;
if( document.getElementById('spanZoomSelect') ) {
if( map_s == zoomMin ) {
document.getElementById('spanZoomSelect').innerHTML =
' - Currently at closest Zoom-IN available for current map: ' +
document.mapform.bm.value;
}
else if( map_s == zoomMax ) {
document.getElementById('spanZoomSelect').innerHTML =
' - Currently at greatest Zoom-OUT available for current map: ' +
document.mapform.bm.value;
}
else { document.getElementById('spanZoomSelect').innerHTML = ''; }
}
var map_pixels = Math.pow(2,map_s-10);
map_pixel = parseFloat(document.mapform.p.value);
var xyArray, utmE, utmN;
if( parseInt(document.mapform.s.value,10) != map_s || map_pixel != map_pixels ) {
map_pixel = map_pixels;
document.mapform.p.value = map_pixel;
var value = map_pixel + ' meter';
if( map_pixel>1 ) { value += 's'; }
document.getElementById('spanNotePixelSize').innerHTML = value;
map_dpUTM17 = document.mapform.dp_utm17.value;
map_poiUTM17 = document.mapform.poi_utm17.value;
xyArray = LL2UTM(UTM2LL(map_dpUTM17,17),map_dpz).split(' ');
utmE = parseFloat(xyArray.shift());
utmN = parseFloat(xyArray.shift());
map_min_utmx = Math.round(utmE - (mapWidth*map_pixel/2));
map_max_utmy = Math.round(utmN + (mapHeight*map_pixel/2));
set_rings();
replaceMap();
} else {
map_dpUTM17 = document.mapform.dp_utm17.value;
map_poiUTM17 = document.mapform.poi_utm17.value;
xyArray = LL2UTM(UTM2LL(map_dpUTM17,17),map_dpz).split(' ');
utmE = parseFloat(xyArray.shift());
utmN = parseFloat(xyArray.shift());
map_min_utmx = Math.round(utmE - (mapWidth*map_pixel/2));
map_max_utmy = Math.round(utmN + (mapHeight*map_pixel/2));
}
document.images.MapScale.src = 'mapscale.asp?s=' + map_s;
mapSourceComment();
}
//-----------------------------------------------------------------------------------
function clickZoomSelect() {
var s = parseInt(document.mapform.s.value,10);
XYoffset(document.images.ZoomSelect);
var xcoord = mouseX - Xoffset;
var zsx = parseInt((xcoord-5)/10,10);
if( zsx < 1 ) { s-=1; }
else if( zsx > 11 ) { s+=1; }
else { s = zsx+9; }
setMapScale(s);
}
//-----------------------------------------------------------------------------------
function setMapSize(tilex,tiley) {
var tileArray = ('' + tilex).split(',');
tilex = parseInt(tileArray.shift(),10);
if( tileArray[0] ) { tiley = parseInt(tileArray.shift(),10); }
if( !tilex ) { tilex = 3; }
if( !tiley ) { tiley = tilex; }
tilex = parseInt( tilex,10 );
if( tilex < 1 ) { tilex = 1; }
tiley = parseInt( tiley,10 );
if( tiley < 1 ) { tiley = 1; }
var limit = 5;
if( typeof user_type == 'undefined' ) { user_type = 'V'; }
if( user_type == 'A' ) { limit = 23; }
if( user_type == 'B' ) { limit = 7; }
if( tilex > limit ) { tilex = limit; }
if( tiley > limit ) { tiley = limit; }
//--- assign pagesize used in PageSizeSelect graphic
var pagesize;
if( tilex==1 && tiley==1 ) { pagesize=1; }
else if( tilex==2 && tiley==2 ) { pagesize=2; }
else if( tilex==3 && tiley==3 ) { pagesize=3; }
else if( tilex==4 && tiley==4 ) { pagesize=4; }
else if( tilex==5 && tiley==5 ) { pagesize=5; }
if( tilex>5 || tiley>5 ) { pagesize=6; }
var url = 'PageSizeSelect.asp?s=' + pagesize + '"';
document.images.PageSizeSelect.src = url;
mapWidth = tilex * 200;
mapHeight = tiley * 200;
if( document.mapform.tile.value != (tilex + ',' + tiley) ) {
document.mapform.tile.value = (tilex + ',' + tiley);
var utm = map_dpUTM17;
if( map_t == 1 || map_t == 2 || map_t == 'N' || map_t == 'O' ) { utm = LL2UTM( UTM2LL( utm, 17 ) ); }
var xyArray = (utm + ' 17').split(' ');
map_min_utmx = parseInt(xyArray.shift(),10) - Math.round(mapWidth*map_pixel/2);
map_max_utmy = parseInt(xyArray.shift(),10) + Math.round(mapHeight*map_pixel/2);
replaceMap();
}
locateMap();
}
//-----------------------------------------------------------------------------------
function clickSizeSelect() {
var tile = parseInt(document.mapform.tile.value,10);
XYoffset(document.images.PageSizeSelect);
var xcoord = mouseX - Xoffset;
var psx = parseInt((xcoord-5)/20,10);
if( psx < 1 ) { tile-=1; }
else if( psx > 5 ) { tile+=1; }
else { tile = psx; }
if( tile < 1 ) { tile = 1; }
setMapSize(tile);
return true;
}
//-----------------------------------------------------------------------------------
function refbutton() {
//-- referesh button (available to sysop)
document.mapform.r.value='1';
replaceMap();
document.mapform.r.value='0';
scroll(0,0);
}
//-----------------------------------------------------------------------------------
function close_windows() {
close_child_window();
//-- tt_disabled is defined when wz_tooltip.js is loaded. enable tooltip to get focus
if( typeof tt_disabled != 'undefined' ) { tt_disabled = 0; }
//-- mmUnload is defined in zMApFormJava.asp
if( mmWindow ) { mmUnload(); }
}
//-----------------------------------------------------------------------------------
function close_child_window() {
if( child_window && child_window.closed ) { child_window = null; }
if( child_window && child_window.close ) { child_window.close(); }
child_window = null;
}
//-----------------------------------------------------------------------------------
function get_basemap() {
close_windows();
child_window = window.open('VaFWIS_MapForm_get_basemap.htm','getWindow',
'top=50,left=50,width=550,height=650,resizable=no,scrollbars=yes,toolbar=no');
child_window.focus();
}
//-----------------------------------------------------------------------------------
function openHelpWin(fileName) {
close_windows();
child_window = window.open(fileName,'helpWindow',
'top=50,left=50,width=700,height=550,resizable=yes,scrollbars=yes,toolbar=no');
child_window.focus();
}
//-----------------------------------------------------------------------------------
function openAuxillaryLegendWin(fileName) {
if( fileName !== '' ) {
close_windows();
child_window = window.open(fileName,'showWindow',
'top=50,left=50,width=700,height=550,resizable=yes,scrollbars=yes,toolbar=no');
child_window.focus();
}
}
//-----------------------------------------------------------------------------------
function get_overlay() {
close_windows();
child_window = window.open('VaFWIS_MapForm_get_overlay.htm','getWindow',
'top=50,left=50,width=550,height=650,resizable=yes,scrollbars=yes,toolbar=no');
child_window.focus();
}
//-----------------------------------------------------------------------------------
function set_shift(s) {
//--- asign global variables shift and title0
shift=s;
if( display_only != '1' ) {
//--- document.mapform.shift only exists when display_only != '1'
if( s==1 ) {
document.mapform.shift.checked=1;
document.mapform.shift2.checked=0;
title0 = title1;
}
if( s==2 ) {
document.mapform.shift.checked=0;
document.mapform.shift2.checked=1;
title0 = title2;
}
}
}
//-----------------------------------------------------------------------------------
function panButton( mode ) {
if( document.mapform.measure.value === '0' ) {
if( mode == null ) { mode = document.mapform.pan.value; }
if ( mode == 1 ) {
mapTitle = title0;
document.getElementById('pan_button').src = 'images/PanButton1.png';
document.getElementById('id_button').src = 'images/IdButton0.png';
document.mapform.pan.value='1';
document.mapform.r.value='0';
} else {
mapTitle = title3;
document.getElementById('pan_button').src = 'images/PanButton0.png';
document.getElementById('id_button').src = 'images/IdButton1.png';
document.mapform.pan.value='0';
document.mapform.r.value='0';
}
} else {
measureButton('0');
//-- careful! recursive call
panButton(mode);
}
map_pan = document.mapform.pan.value;
}
//-----------------------------------------------------------------------------------
function measureDrawPoint( graphicObject, x, y, color ) {
graphicObject.setColor( color );
graphicObject.setStroke(2);
graphicObject.drawRect(x-6,y-6,12,12);
}
//-----------------------------------------------------------------------------------
function measureDrawLine( graphicObject, xf, yf, xl, yl ) {
if( ( xf > mapLeftX && xf < mapRightX )
&& ( xl > mapLeftX && xl < mapRightX )
&& ( yf > mapTopY && yl < mapBottomY )
&& ( yl > mapTopY && yl < mapBottomY )
) {
graphicObject.drawLine(xf,yf,xl,yl);
} else {
//--- draw any overlap
var p1x = -1; var p1y = -1; var p2x = -1; var p2y = -1;
var line = new Segment(new Vector(xf, yf), new Vector(xl, yl));
var side = new Segment( new Vector( mapLeftX+1, mapTopY+1), new Vector(mapLeftX+1, mapBottomY-1) );
var intersectionPoint = new Vector(0, 0);
if(intersect(line, side, intersectionPoint) == INTERSECT){
if( p1x == -1 ) { p1x = intersectionPoint.x; p1y = intersectionPoint.y; }
else { p2x = intersectionPoint.x; p2y = intersectionPoint.y; }
}
side = new Segment( new Vector( mapLeftX+1, mapBottomY-1), new Vector(mapRightX-1, mapBottomY-1) );
var intersectionPoint = new Vector(0, 0);
if(intersect(line, side, intersectionPoint) == INTERSECT){
if( p1x == -1 ) { p1x = intersectionPoint.x; p1y = intersectionPoint.y; }
else { p2x = intersectionPoint.x; p2y = intersectionPoint.y; }
}
side = new Segment( new Vector(mapRightX-1, mapBottomY-1), new Vector(mapRightX-1, mapTopY+1) );
var intersectionPoint = new Vector(0, 0);
if(intersect(line, side, intersectionPoint) == INTERSECT){
if( p1x == -1 ) { p1x = intersectionPoint.x; p1y = intersectionPoint.y; }
else { p2x = intersectionPoint.x; p2y = intersectionPoint.y; }
}
side = new Segment( new Vector(mapRightX-1, mapTopY+1), new Vector(mapLeftX+1, mapTopY+1) );
var intersectionPoint = new Vector(0, 0);
if(intersect(line, side, intersectionPoint) == INTERSECT){
if( p1x == -1 ) { p1x = intersectionPoint.x; p1y = intersectionPoint.y; }
else { p2x = intersectionPoint.x; p2y = intersectionPoint.y; }
}
if( p1x > -1 ) {
if( p2x == -1 ) {
if( ( xf > mapLeftX && xf < mapRightX )
&& ( yf > mapTopY && yf < mapBottomY )
) { graphicObject.drawLine(parseInt(p1x,10),parseInt(p1y,10),xf,yf); }
else if( ( xl > mapLeftX && xl < mapRightX )
&& ( yl > mapTopY && yl < mapBottomY )
) { graphicObject.drawLine(parseInt(p1x,10),parseInt(p1y,10),xl,yl); }
} else {
graphicObject.drawLine(parseInt(p1x,10),parseInt(p1y,10),parseInt(p2x,10),parseInt(p2y,10));
}
}
}
}
//-----------------------------------------------------------------------------------
function initMeasureTool(mode) {
if( mode == null ) { mode = '1'; }
mouseDown = 0;
mapMessageMaxX = 0;
mmA.clear();
mmB.clear();
if( mapMeasureDDListArray.length == 0 ) {
mapMeasureDDList = '';
mapMeasureDDListArray = new Array();
xList = '';
yList = '';
lastX = 0;
lastY = 0;
textXY = '';
} else {
measureToolDrawB();
}
if( mode > '2' ) { mode = '1'; }
if( mode > '0' ) {
mouseMode = mode;
}
mapMeasureFinish = false;
//--- wz_tooltip.js will take over onmousemove so as a temporary fix it is established here each time.
// document.onmousemove = mouseCoords;
openMeasureTool();
}
//-----------------------------------------------------------------------------------
function openMeasureTool() {
//-- mmLoad is defined in zMApFormJava.asp
if( !mmWindow && mapMeasure == 1 && typeof mmLoad == 'function' ) { mmLoad(); }
}
//-----------------------------------------------------------------------------------
function mapMeasureOverScrollBar() {
var x,y;
var result = false;
var notIE = true;
if( document.body && typeof document.body.scrollLeft == 'number' ) { notIE = false; }
if( document.documentElement &&
( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) { notIE = true; }
if( typeof window.pageYOffset == 'number' ) { notIE = true; }
// scrolbars: fucus on window if within 20 of posBottom or posRight;
// guess visiblity of bottom scrollbar
// assume right scrollbar is visible
var viewWidth = bar_width;
if( mapWidth > 760 ) { viewWidth += mapWidth; } else { viewWidth += 760; }
if( mapMessageMaxX+20 > viewWidth ) { viewWidth = mapMessageMaxX+20; }
y = posBottom() - mouseY;
if( pageWidth() < viewWidth ) {
//-- there should be a scroll bar visible on the bottom
if( notIE && y < ScrollBarThickness && y >= 0 ) {
window.focus();
result = true;
} else {
if( y <= 0 ) {
window.focus();
result = true;
}
}
}
//-- there should be a scroll bar on the right side
x = posRight() - mouseX;
if( notIE && x < ScrollBarThickness && x >= 0 ) {
window.focus();
result = true;
} else {
if( x < 0 ) {
window.focus();
result = true;
}
}
return( result );
}
//-----------------------------------------------------------------------------------
function measureButton(mode) {
if( mode == null ) {
mode = document.mapform.measure.value;
if( mode === '0' ) { mode = '1'; } else { mode = '0'; }
}
close_windows();
if( mode === '0' ) {
mapMeasure = '0';
document.mapform.measure.value = mapMeasure;
mouseDown = 0;
mouseMode = '1';
document.getElementById('measure_button').src = 'images/MeasureButton0.png';
panButton();
} else {
mapMeasure = '1';
document.mapform.measure.value = mapMeasure;
document.getElementById('measure_button').src = 'images/MeasureButton1.png';
document.getElementById('pan_button').src = 'images/PanButton0.png';
if( permission_mmID ) {
} else {
document.getElementById('id_button').src = 'images/IdButton0.png';
}
initMeasureTool('1');
}
}
//-----------------------------------------------------------------------------------
function mapMeasureLastXY( dd, coord ) {
if( dd && dd !== '' ) {
if( !coord ) { coord = map_coord; }
//-- translate to image coordinates
locateMap();
if( coord == 'UTM83' ) { setNAD83(); } else { setNAD27(); }
var xyz = LL2UTM( dd, map_dpz );
setNAD27();
var xyArray = xyz.split(' ');
var x = parseInt(xyArray[0],10);
var y = parseInt(xyArray[1],10);
//-- assign global variables lastX, lastY
lastX = parseInt( Math.round( (x-map_min_utmx)/map_pixel ),10 ) + Xoffset + 3;
lastY = parseInt( Math.round( (map_max_utmy-y)/map_pixel ),10 ) + Yoffset + 3;
} else {
lastX = '';
lastY = '';
}
}
//-----------------------------------------------------------------------------------
function measureTool(mode) {
var i, j, t, tArray, x, y;
if( mode == null ) { mode= mouseMode; }
if( mode == '1' || mode == '2' ){
//-- Point Your Mouse or Drag Your Mouse
mouseMode = mode;
lastMouseMode = mouseMode;
}
if( mode == '3' ) {
//-- backup button
mapMeasureRemoveList();
mmA.clear();
xList = '';
yList = '';
mapMeasureDDList = '';
if( mapMeasureDDListArray.length > 0 ) {
var ddArray = mapMeasureDDListArray[0].split(',');
mapMeasureLastXY( ddArray[1] );
if( lastX > 0 ) {
measureDrawPoint( mmA, lastX, lastY, "lightgreen" );
}
} else {
textXY='';
}
measureToolDrawB();
openMeasureTool();
}
if( mode == '4' ) {
//-- finish button
if( mapMeasureDDListArray.length > 0 && !mapMeasureFinish ) {
mouseMode = '4';
mouseDown = 1;
mapMeasureReport();
mapMeasureFinish = true;
} else {
mapMeasureDDList = '';
mapMeasureDDListArray = new Array();
xList = '';
yList = '';
lastX = 0;
lastY = 0;
textXY = '';
initMeasureTool(lastMouseMode);
close_child_window();
}
}
if( mode == '5' ) {
//-- map measure window closed
measureButton('0');
}
if( mode == '6' ) {
//-- import coordinates
}
if( mode == '7' ) {
//-- zoom to coordinates
var minx = 1.0E44;
var miny = 1.0E44;
var maxx = -1.0E44;
var maxy = -1.0E44;
var ddArray = mapMeasureDDListArray.join(',').split(',');
setNAD27();
var z = 17;
while( ddArray.length > 0 ) {
var dd = ddArray.shift();
if( dd !== '' ) {
var utmArray = LL2UTM(dd,z).split(' ');
var n = parseInt(utmArray.shift(),10);
if( n < minx ) { minx = n; }
if( n > maxx ) { maxx = n; }
n = parseInt(utmArray.shift(),10);
if( n < miny ) { miny = n; }
if( n > maxy ) { maxy = n; }
}
}
var zoomPixel = (maxx-minx)/mapWidth;
var pixelN = (maxy-miny)/mapHeight;
if( pixelN > zoomPixel ) { zoomPixel = pixelN; }
s = 10;
if( zoomPixel > 256.0 ) { s = 20;
} else if( zoomPixel > 128.0 ) { s = 19;
} else if( zoomPixel > 64.0 ) { s = 18;
} else if( zoomPixel > 32.0 ) { s = 17;
} else if( zoomPixel > 16.0 ) { s = 16;
} else if( zoomPixel > 8.0 ) { s = 15;
} else if( zoomPixel > 4.0 ) { s = 14;
} else if( zoomPixel > 2.0 ) { s = 13;
} else if( zoomPixel > 1.0) { s = 12;
} else if( zoomPixel > 0.5 ) { s = 11;
}
if( s <= zoomMin ) { s = zoomMin; }
//--- redraw map with center dp and scale s;
doNotReplaceMap ++;
setMapScale(s);
doNotReplaceMap --;
if( zoomPixel < map_pixel*0.666 ) { zoomPixel = map_pixel*0.666; }
map_pixel = zoomPixel;
document.mapform.p.value = map_pixel;
zoomPixel = nDecString(zoomPixel,1+(zoomPixel < 2));
//###
//### remeber to account for scalebar and reported pixel size
//###
document.images.MapScale.src = 'mapscale.asp?s=' + map_s + '&p=' + zoomPixel;
document.getElementById('spanNotePixelSize').innerHTML = zoomPixel;
var utmE = (maxx+minx)/2;
var utmN = (maxy+miny)/2;
var idCoordinates = utmE + ' ' + utmN + ' ' + z;
map_dpLL = UTM2LL( idCoordinates );
map_dpUTM17 = LL2UTM( map_dpLL, 17 );
idCoordinates = map_dpUTM17;
//--- When the base map is NAD 1983, it is displayed by httpMapImage with a shift to represent NAD 1927.
//--- therefore the point clicked is always NAD 1927 even if the base map is NAD 1983.
if( ( document.mapform.t.value == '1'
|| document.mapform.t.value == '2'
|| document.mapform.t.value == 'N'
|| document.mapform.t.value == 'O' )
) {
//--- check for change in UTM Zone when terraserver images
idCoordinates = LL2UTM( map_dpLL );
}
var xyArray = idCoordinates.split(' ');
utmE = parseInt(xyArray.shift(),10);
utmN = parseInt(xyArray.shift(),10);
z = parseInt(xyArray.shift(),10);
idCoordinates = utmE + ' ' + utmN + ' ' + z;
document.mapform.dp.value = idCoordinates;
map_dpUTM17 = LL2UTM( map_dpLL, 17 );
document.mapform.dp_utm17.value = map_dpUTM17;
if( (display_only != '1' && shift == 1) ) {
document.mapform.poi.value = idCoordinates;
map_poiUTM17 = map_dpUTM17;
map_porUTM17 = map_poiUTM17;
map_poiLL = map_dpLL;
document.mapform.poi_utm17.value = map_poiUTM17;
}
map_min_utmx = utmE - Math.round(mapWidth*map_pixel/2);
map_max_utmy = utmN + Math.round(mapHeight*map_pixel/2);
map_dpz = z;
document.mapform.dpz.value = map_dpz;
search_point_comment='';
replaceMap();
}
if( mode == '8' ) {
//-- map measure window closed
mapMeasureFinish = true;
mapMeasureDDList = '';
mapMeasureDDListArray = new Array();
xList = '';
yList = '';
lastX = 0;
lastY = 0;
textXY = '';
mmToolMode('4');
mmToolMode('5');
if( showingMapReport ) {
if( document.getElementById("mr_poi") && document.getElementById("mr_poi").value ) { document.getElementById("mr_poi").value = ''; }
replaceMap();
}
}
}
//-----------------------------------------------------------------------------------
function mapMeasureAddList() {
if( mapMeasureDDList !== '' ) {
mapMeasureDDListArray.unshift(mapMeasureDDList);
xList = '';
yList = '';
mapMeasureDDList = '';
}
}
//-----------------------------------------------------------------------------------
function mapMeasureRemoveList() {
if( mapMeasureDDListArray.length > 0 ) {
mapMeasureDDListArray.shift();
}
}
//-----------------------------------------------------------------------------------
function measureToolDrawB() {
mmB.clear();
var i = mapMeasureDDListArray.length - 1;
lastX = '';
lastY = '';
var lx = '';
var ly = '';
while( i > -1 ) {
var ddArray = mapMeasureDDListArray[i].split(',');
i -= 1;
if( lastX !== '' ) { measureDrawPoint( mmB, lastX, lastY, "red" ); }
if( ddArray.length > 0 ) {
ddArray.reverse();
var dd = ddArray.shift();
if( dd != '' ) {
//--- draw using NAD27 coordinate system - any NAD83 image has been shifted to NAD27 for display
mapMeasureLastXY( dd, 'LL' );
if( ddArray.length>0 ) { measureDrawPoint( mmB, lastX, lastY, "red" ); }
mmB.setColor("blue");
mmB.setStroke(2);
if( lx !== '' ) { measureDrawLine( mmB, lx, ly, lastX, lastY); }
lx = lastX;
ly = lastY;
var dd = ddArray.shift();
while( dd ) {
if( dd != '' ) {
//--- draw using NAD27 coordinate system - any NAD83 image has been shifted to NAD27 for display
mapMeasureLastXY( dd, 'LL' );
measureDrawLine( mmB, lx, ly, lastX, lastY);
lx = lastX;
ly = lastY;
}
dd = ddArray.shift();
}
}
}
}
mmB.paint();
mmA.clear();
measureDrawPoint( mmA, lastX, lastY, "lightgreen" );
mmA.paint();
if( typeof mmGetCoordinates == 'function' ) { mmGetCoordinates(); }
if( mmShadePolygon ) {
shadeCoordinates();
}
}
//-----------------------------------------------------------------------------------
function mapMeasureReport(){
//-- using setTimeout to create "signal" for the browser to update its display; otherwise a "please wait" may not show
if( (mapMeasureDDListArray[0] && mapMeasureDDListArray[0].length>100) || mapMeasureDDListArray[1] ) {
progress_start('Browser busy running map JavaScript,');
}
reportTimer = setTimeout('mapMeasureReportDelayed()',1);
}
function mapMeasureReportDelayed() {
clearTimeout(reportTimer);
//-- using setTimeout to create "signal" for the browser to update its display; otherwise a "please wait" may not show
if( mapMeasureDDListArray.length > 0 ) {
//-- call for report
if( document.mapform.pan.value === '0' && permission_mmID ) {
var xyString = getValue_textXY('UTM27');
if( xyString != '' ) {
xyString = xyString.replace(/\t/g,' ');
xyString = xyString.replace(/\n/g,',');
xyString = xyString.replace(/,,/g,',');
xyString = xyString.substr(0,xyString.length-1);
//alert(xyString);
mapReport(xyString);
}
}
//-- display search area on map
//-- construct xList form mapMeasureDDListArray
var ddList = mapMeasureDDListArray.join(',');
var ddArray = ddList.split(',');
var dsqr = 0;
var xArray = new Array();
var yArray = new Array();
while ( ddArray.length > 0 ) {
//-- the display coordinate system is always UTM27 ( July 15, 2010 abj3 )
mapMeasureLastXY( ddArray.shift(), 'UTM27' );
if( lastX !== '' ) {
xArray.push(lastX);
yArray.push(lastY);
}
}
var lX = parseInt(xArray[0],10);
var lY = parseInt(yArray[0],10);
var firstX = lX;
var firstY = lY;
measureDrawPoint( mmA, lX, lY, "red" );
mmA.paint();
var prod1 = 0;
var prod2 = 0;
var n = 0;
var bx = lX;
var by = lY;
var px = 0;
var py = 0;
var maxX = lX;
var maxY = lY;
var minX = lX;
var minY = lY;
var Xpoints = new Array();
var Ypoints = new Array();
for ( i in xArray ) {
cX = parseInt(xArray[i],10);
cY = parseInt(yArray[i],10);
Xpoints.push(cX);
Ypoints.push(cY);
if( cX > maxX ) { maxX = cX; }
if( cY > maxY ) { maxY = cY; }
if( cX < minX ) { minX = cX; }
if( cY < minY ) { minY = cY; }
dsqr += Math.sqrt( (cX-lX)*(cX-lX) + (cY-lY)*(cY-lY) );
lX = cX;
lY = cY;
n += 1;
cX -= bx;
cY -= by;
prod1 += cX * py;
prod2 += cY * px;
px = cX;
py = cY;
}
var d1 = parseInt( dsqr + 0.5,10 );
var area = 0.0;
var isPolygon = false;
if( n > 2 ) { area = parseInt(Math.abs(prod1-prod2)/2.0+0.5,10); }
if( d1 > 2 ) {
//--- Measure
var d0 = parseInt( Math.sqrt( (firstX-lX)*(firstX-lX) + (firstY-lY)*(firstY-lY) ) +0.5,10 );
//--- d1 is line distance
//--- d0 is close distance
//--- isPolygon calculation should match that found in mapReport.pl
isPolygon = ( d1 > d0*8 );
d1 = d1 * map_pixel;
d0 = d0 * map_pixel;
if( map_coord != 'LL' ) {
if( d1 > 3333.0 ) { d1 = parseInt(d1/100,10)/10 + ' Kilometers'; } else { d1 = d1 + ' meters'; }
if( d0 > 3333.0 ) { d0 = parseInt(d0/100,10)/10 + ' Kilometers'; } else { d0 = d0 + ' meters'; }
} else {
d1 = d1 * 5280 / 1609;
d0 = d0 * 5280 / 1609;
if( d1 > 6666.0 ) { d1 = parseInt(d1/528,10)/10 + ' Miles'; } else { d1 = parseInt(d1+0.5,10) + ' feet'; }
if( d0 > 6666.0 ) { d0 = parseInt(d0/528,10)/10 + ' Miles'; } else { d0 = parseInt(d0+0.5,10) + ' feet'; }
}
var measure0 = 'closing length ' + d0;
var measure1 = 'length ' + d1;
var mapMessageLength = measure0.length*8;
if( measure1.length > measure0.length ) { mapMessageLength = measure1.length*8; }
maxX += 5;
maxY += 5;
//--- bottom scroll bar may appear if message is positioned to the right
mapMessageMaxX = maxX + mapMessageLength;
mmA.setColor("red");
mmA.setStroke(3);
mmA.fillRect( maxX-2, maxY-2, mapMessageLength+4, 94) ;
mmA.setColor("blue");
mmA.fillRect( maxX, maxY, mapMessageLength, 60) ;
mmA.setColor("white");
mmA.setFont("arial","15px",Font.BOLD);
mmA.drawString( measure1, maxX+5, maxY+5 );
//--- area in pixels
if( area > 0 && isPolygon ) {
area = area * map_pixel * map_pixel;
//--- area in sq. meters
if( map_coord != 'LL' ) {
//--- area in hectares
area = parseInt(area / 1000,10) /10;
mmA.drawString( 'area ' + area + ' hectares', maxX+10, maxY+40 );
} else {
if( area < 1609*1609*3 ) {
//--- area in acres 1609 meters in 5280 feet: (5280*5280)/(1609*1609) sq. feet per sq. meter
area = area * (5280*5280)/(1609*1609) / 43560;
if( area > 10.0 ) {
mmA.drawString( 'area ' + parseInt(area * 10,10 ) / 10 + ' acres', maxX+10, maxY+40 );
} else {
mmA.drawString( 'area ' + parseInt(area * 100,10 ) / 100 + ' acres', maxX+10, maxY+40 );
}
} else {
mmA.drawString( 'area ' + parseInt(area / (1609*1609) * 10,10 ) / 10 + ' sq. miles', maxX+10, maxY+40 );
}
}
}
measureDrawPoint( mmA, lX, lY, "red" );
mmA.setColor("#90FF90"); //-- #90FF90 LightGreen
mmA.setStroke(6);
mmA.drawLine( firstX, firstY, lX, lY );
mmA.fillRect( maxX, maxY+60, mapMessageLength, 30) ;
mmA.setColor("black");
mmA.setFont("arial","15px",Font.BOLD);
mmA.drawString( measure0, maxX+5, maxY+65 );
mmA.paint();
opacity( divMapMeasureIdA, 70 );
//--- testing popup VaFWIS Map Report poly/line
//alert( 'minX="' + minX + '" minY="' + minY + '" maxX="' + maxX + '" maxY="' + maxY + '" mapWidth="' + mapWidth + '" mapHeight="' + mapHeight + '"');
if( 1 && document.mapform.pan.value === '0' && permission_mmID ) {
if( minY > mapTopY
&& maxY < mapBottomY
&& minX > mapLeftX
&& maxX < mapRightX
) {
if( 0 ) { replaceMap(); }
mapMeasureFinish = true;
mmB.setColor("yellow");
if( isPolygon ) {
mmB.setStroke(1);
mmB.fillPolygon(Xpoints,Ypoints);
} else {
mmB.setStroke(12);
mmB.drawPolyLine(Xpoints,Ypoints);
}
mmB.setStroke(2);
mmB.setColor("blue");
mmB.drawPolygon(Xpoints,Ypoints);
mmB.paint();
opacity( divMapMeasureIdB, 40 );
} else {
if( !mmShadePolygon ) {
alert( 'Map Measure:\nUnable to display site.\nSome Map Measure coordinates fall outside display bounds.' );
}
}
}
} else {
mapMeasureFinish = true;
}
//-- end d1>2
}
// --- end if( mapMeasureDDListArray.length > 0 )
progress_stop();
}
function shadeCoordinates(){
if( mapMeasureDDListArray.length > 0 ) {
var ddList = mapMeasureDDListArray.join(',');
var ddArray = ddList.split(',');
var Xpoints = new Array();
var Ypoints = new Array();
while ( ddArray.length > 0 ) {
//-- the display coordinate system is always UTM27 ( July 15, 2010 abj3 )
mapMeasureLastXY( ddArray.shift(), 'UTM27' );
if( lastX !== '' ) {
Xpoints.push(parseInt(lastX,10));
Ypoints.push(parseInt(lastY,10));
}
}
mmB.setColor("yellow");
mmB.setStroke(12);
if( mmShadePolygon ) {
mmB.fillPolygon(Xpoints,Ypoints);
}
mmB.drawPolyLine(Xpoints,Ypoints);
mmB.setStroke(2);
mmB.setColor("blue");
mmB.drawPolygon(Xpoints,Ypoints);
mmB.paint();
opacity( divMapMeasureIdB, 40 );
}
}
function opacity( id, percentOpacity ) {
if( id ) {
if( percentOpacity == null ) { percentOpacity = 100; }
if( percentOpacity < 0 ) { percentOpacity = 0; }
if( percentOpacity > 99 ) { percentOpacity = 100; }
percentOpacity = parseInt(percentOpacity,10);
var node = document.getElementById(id);
if( BrowserDetect.browser == 'Explorer' ) {
//--- Microsoft Internet Explorer is not compliant. need to itterate all "div"
var nodeArray = node.getElementsByTagName('div');
if( nodeArray.length>0 ) {
for (var i=0;i 0 ) { display_poi += ' ' + llArray.join(' '); }
llArray = mapMeasure_dpLL.split(' ');
display_dp = nDecString(llArray.shift(),6);
display_dp += ' ' + nDecString(llArray.shift(),6);
if( llArray.length > 0 ) { display_dp += ' ' + llArray.join(' '); }
if( document.getElementById('spanNoteCoordinateSystem') ) {
document.getElementById('spanNoteCoordinateSystem').innerHTML =
'decimal Degrees North and West.'; }
} else {
display_poi = dd2dms(mapMeasure_poiLL);
display_dp = dd2dms(mapMeasure_dpLL);
if( document.getElementById('spanNoteCoordinateSystem') ) {
document.getElementById('spanNoteCoordinateSystem').innerHTML =
'Degrees, Minutes, Seconds North and West.'; }
}
if( document.getElementById('poi1') ) {
var rgb = 'rgb(250,200,255)';
if( display_only == '1' ) { rgb = 'rgb(255,255,255)'; }
document.getElementById('poi1').innerHTML = unescape(search_point_comment) +
'';
}
if( document.getElementById('poi3') ) { document.getElementById('poi3').innerHTML = display_poi; }
if( document.getElementById('poi4') ) { document.getElementById('poi4').innerHTML = display_poi; }
if( document.getElementById('dp1') ) { document.getElementById('dp1').innerHTML = display_dp; }
if( document.mapMeasure ) { mmGetCoordinates(); }
}
//-----------------------------------------------------------------------------------
function getValue_textXY(coord) {
if( mapMeasureDDListArray.length > 0 ) {
textXY = measureToolListArrays2Text('',coord);
} else {
textXY = '';
}
return textXY;
}
//-----------------------------------------------------------------------------------
function getValue_map_coord() {
return map_coord;
}
//-----------------------------------------------------------------------------------
function putValueTextXY(textXY,coord,polyLineDelimiter) {
// alert('putValueTextXY');
if( polyLineDelimiter == null ) { polyLineDelimiter = ''; }
//-- textXY is tab delimited coordinate columns with linefeed delimited rows
mapMeasureDDList = '';
mapMeasureFinish = false;
mmA.clear();
mapMeasureDDListArray = new Array();
if( textXY && textXY !== '' ) {
//-- IE6 returns a \r
//-- textXY must be in the coordinate datum system specified by map_coord or all is lost.
//alert( 'map_coord='+map_coord );
if( map_coord == 'UTM83' ) { setNAD83(); } else { setNAD27(); }
var lineArray = textXY.replace(/\r/g,'').split('\n');
lineArray.reverse();
while ( lineArray.length ) {
var xyz = lineArray.shift();
if( xyz == polyLineDelimiter ) {
if( mapMeasureDDList !== '' ) { mapMeasureAddList(); }
} else {
xyz = xyz.replace(/\t/g,' ');
//-- best shot at interpreting coordinates. If UTM there may be NAD 27 - 83 confusion
//-- Lat/Lon in decimal degrees
mapMeasureDDList = ',' + dd( xyz, map_dpz ) + mapMeasureDDList;
}
}
}
if( mapMeasureDDList !== '' ) {
mapMeasureAddList();
measureToolDrawB();
}
}
//-----------------------------------------------------------------------------------
function measureToolListArrays2Text(polyLineDelimiter, coord) {
if( !polyLineDelimiter ) { polyLineDelimiter = ''; }
if( !coord ) { coord = map_coord; }
//---------if( coord != 'UTM83' ) { coord = 'UTM27'; }
var textXY = '';
var i = 0;
while( mapMeasureDDListArray.length > i ) {
var ddArray = mapMeasureDDListArray[i].split(',');
while ( ddArray.length ) {
var dd = ddArray.shift();
var coordinatePair;
if( dd === '' ) {
} else {
var coordinatePair;
if( coord == 'UTM27' ) {
//--- UTM NAD 1927
setNAD27();
var utm = LL2UTM(dd,map_dpz);
var utmArray = utm.split(' ');
coordinatePair = nDecString(utmArray.shift(),-1);
coordinatePair += ' ' + nDecString(utmArray.shift(),-1);
if( utmArray.length > 0 ) { coordinatePair += ' ' + utmArray.join(' '); }
} else if( coord == 'UTM83' ) {
//--- UTM NAD 1983
setNAD83();
var utmArray = LL2UTM(dd,map_dpz).split(' ');
coordinatePair = nDecString(utmArray.shift(),-1);
coordinatePair += ' ' + nDecString(utmArray.shift(),-1);
if( utmArray.length > 0 ) { coordinatePair += ' ' + utmArray.join(' '); }
setNAD27();
} else if( coord == 'LL' ) {
//--- Lat Lon DMS
coordinatePair = dd2dms(dd,',',3);
} else if( coord == 'DD' ) {
//--- Lat Lon decimal degrees
var llArray = dd.split(' ');
coordinatePair = llArray.shift().substring(0,8);
coordinatePair += ' ' + llArray.shift().substring(0,9);
if( llArray.length > 0 ) { coordinatePair += ' ' + llArray.join(' '); }
} else {
//--- unsupported coordinate system
}
textXY += '\n' + coordinatePair;
}
}
textXY += '\n';
i++;
}
textXY = textXY.replace(/ /g,'\t').substr(1);
return textXY;
}
//-------------------------------------------------------------------------------
/*
Intersection of two lines
retrieved June 3, 2009
http://bloggingmath.wordpress.com/2009/05/29/line-segment-intersection/
http://cloud.github.com/downloads/bjwbell/canvas-geolib/main.js
seg1 is represented by p + t * r where 0 <= t <= 1
seg2 is represented by q + u * s where 0 <= u <= 1
the intersection of line 1 and line 2 is given by
p + t*r = q + u*s,
let x be the two dimensional cross product then
(p + t*r) x s = (q + u*s) x s = q x s
which solving for t gives
t = (q - p) x s / (r x s).
similarly solving for u gives
u = (q - p) x r / (r x s).
the segments intersect if 0 <= t <= 1 and 0 <= 1 <= u.
If r x s is zero then the lines are parallel, in which case if
(q - p) x r = 0 then the lines are co-linear.
*/
var epsilon = 10e-6;
var DONT_INTERSECT = 0;
var PARALLEL_DONT_INTERSECT = 1;
var COLINEAR_DONT_INTERSECT = 2;
var INTERSECT = 3;
var COLINEAR_INTERSECT = 4;
function Vector(x, y){
this.x = x;
this.y = y;
this.color = '#000';
this.draw = function() {
};
this.scalarMult = function(scalar){
return new Vector(this.x * scalar, this.y * scalar);
}
this.dot = function(v2) {
return this.x * v2.x + this.y * v2.y;
};
this.perp = function() {
return new Vector(-1 * this.y, this.x);
};
this.subtract = function(v2) {
return this.add(v2.scalarMult(-1));//new Vector(this.x - v2.x, this.y - v2.y);
};
this.add = function(v2) {
return new Vector(this.x + v2.x, this.y + v2.y);
}
}
function Segment(p1, p2){
//alert('s1');
this.p1 = p1;
this.p2 = p2;
//alert('s2');
this.draw = function() {
};
}
// the cross product of vectors v1 and v2.
function cross(v1, v2) {
return v1.x * v2.y - v2.x * v1.y;
}
function intersect(seg1, seg2, intersectionPoint) {
p = seg1.p1;
r = seg1.p2.subtract(seg1.p1);
q = seg2.p1;
s = seg2.p2.subtract(seg2.p1);
rCrossS = cross(r, s);
if(rCrossS <= epsilon && rCrossS >= -1 * epsilon){
return PARALLEL_DONT_INTERSECT;
}
t = cross(q.subtract(p), s)/rCrossS;
u = cross(q.subtract(p), r)/rCrossS;
if(0 <= u && u <= 1 && 0 <= t && t <= 1){
intPoint = p.add(r.scalarMult(t));
intersectionPoint.x = intPoint.x;
intersectionPoint.y = intPoint.y;
return INTERSECT;
}else{
return DONT_INTERSECT;
}
}
//-------------------------------------------------------------------------------
//-- Progress image tool
var progressEnd = 9; // set to number of progress 's.
var progressColor = '#00FF7F'; // set to progress bar color #00FF7F SpringGreen
var progressInterval = 1000; // set to time between updates (milli-seconds)
var progressAt = progressEnd;
var progressTimer;
function progress_clear() {
for (var i = 1; i <= progressEnd; i++) {
document.getElementById('progress'+i).style.backgroundColor = 'transparent'; }
progressAt = 0;
}
function progress_update() {
document.getElementById('progress0').style.backgroundColor = progressColor;
progressAt++;
if (progressAt > progressEnd) {
progress_clear();
} else {
document.getElementById('progress'+progressAt).style.backgroundColor = progressColor;
}
progressTimer = setTimeout('progress_update()',progressInterval);
}
function progress_stop() {
clearTimeout(progressTimer);
// progress_clear();
document.getElementById('PleaseWait').style.visibility='hidden';
}
function progress_start(text) {
if( !text ) { text = 'Loading map,'; }
progress_clear();
progress_update();
document.getElementById('PleaseWaitText').innerHTML = text;
document.getElementById('PleaseWait').style.visibility='visible';
}
//----------------------------------------------------------
function styleObject(object) {
if (document.getElementById && document.getElementById(object) != null) {
return document.getElementById(object).style; }
else if (document.layers && document.layers[object] != null) {
return document.layers[object].style; }
else if (document.all) {
return document.all[object]; }
}
//-----------------------------------------------------------------------------------
function replaceMap() {
var line, url;
if( doNotReplaceMap > 0 ) { return; }
doNotReplaceMap = 0;
mapMeasureFinish = false;
progress_start();
mapMeasureCoord( map_coord );
var tileArray = document.mapform.tile.value.split(',');
mapWidth = parseInt(tileArray[0],10)*200;
mapHeight = parseInt(tileArray[1],10)*200;
var rExp = / /g;
//--- load the upper-right VaLocator image
//-- need integer coordinates
url = '';
url += 'aVaLocator.asp?';
url += 's=' + document.mapform.s.value + '&width=' + mapWidth + '&height=' + mapHeight;
url += '&dp=';
var xyzArray = (map_dpUTM17 + ' 17').split(' ');
url += parseInt(xyzArray.shift(),10) + '+' + parseInt(xyzArray.shift(),10) + '+' + parseInt(xyzArray.shift(),10);
url += '&poi=';
xyzArray = (map_poiUTM17 + ' 17').split(' ');
url += parseInt(xyzArray.shift(),10) + '+' + parseInt(xyzArray.shift(),10) + '+' + parseInt(xyzArray.shift(),10);
document.images.VaLocator.src = url.replace(rExp,'+');
//-- map view coordinates are set by map_min_utmx, map_max_utmy, map_dpz
//-- poi point of interest - search point
//-- por point of rings
//-- when there is a search distance then map_porUTM17 is search point
//-- when there is an observation record then POI is map_itemUTM17
//--- basemap UTM Datum and zone
var utmE = map_min_utmx;
var utmN = map_max_utmy;
bm_nad=1927;
var bmz = '17';
if(map_t === '0') { bm_nad=1927; bmz = ''; }
else if(map_t == '1') { bm_nad=1983; bmz = ''; }
else if(map_t == '2') { bm_nad=1983; bmz = ''; }
else if(map_t == '3') { bm_nad=1927; bmz = '17'; }
else if(map_t == '4') { bm_nad=1927; bmz = '17'; }
else if(map_t == '6') { bm_nad=1927; bmz = '17'; }
else if(map_t == '9') { bm_nad=1983; bmz = '17'; }
else if(map_t == 'A') { bm_nad=1983; bmz = '17'; }
else if(map_t == 'B') { bm_nad=1983; bmz = '17'; }
else if(map_t == 'C') { bm_nad=1983; bmz = '17'; }
else if(map_t == 'D') { bm_nad=1983; bmz = '17'; }
else if(map_t == 'N') { bm_nad=1983; bmz = ''; }
else if(map_t == 'O') { bm_nad=1983; bmz = ''; }
if( bm_nad == 1983 ) {
//--- nad83 to nad27 display shift
//--- all overlay coordinates are UTM NAD 1927
//--- When the base map is NAD 1983 the display is shifted so that the point of interest defined in NAD 1927
//--- remains in the center of the map. As a side effect the Javascript Click_Map routine will also return a
//--- NAD 1927 coordinate for a NAD 1983 base map.
//
//--- Virginia nad83 to nad27 display shift for terraserver iamges discovered by observation
utmE += 17;
utmN += 219;
}
showingMapReport = 0;
line = '';
url = '';
line += '-1 ) { url += '&opoi=' + document.mapform.opoi.value; }
//cookie "poi" is used as default location for VaFWIS Geographic Search by Map
cookieSet( "poi", UTM2LL(map_poiUTM17),1,"/");
url += '&poi=' + map_poiUTM17;
url += '&por=' + map_porUTM17;
url += '&dist=' + document.mapform.dist.value;
url += '&ret=' + rings;
if( document.mapform.r.value == '1' ) { url += '&force=1'; }
url += '&antiCache=' + (new Date()).getTime();
if( document.mapform.pan.value=='0'
&& document.getElementById("mr_poi")
&& document.getElementById("mr_poi").value
&& document.getElementById("mr_poi").value != '' ) {
url += '&mr_coord=' + document.getElementById("mr_coord").value;
url += '&mr_dist=' + document.getElementById("mr_dist").value;
url += '&mr_xy=' + document.getElementById("mr_poi").value;
//alert( url.replace(rExp,'+') );
}
url += '"';
line += url.replace(rExp,'+');
line += ' style="cursor:default;"';
line += ' height="' + mapHeight + '" width="' + mapWidth + '">\n';
document.getElementById(divMapId).innerHTML = line;
//--- W3C does not support imageID.onload=progress_stop; but this works with FireFox, IE, Opera, Safari
document.getElementById("mapImage").onload=progress_stop;
document.getElementById(divMapId).style.cursor = 'default';
document.images.mapImage.style.cursor = 'default';
document.getElementById(divZoomBoxId).style.cursor = 'default';
//--- item of interest can be search point or observation record location
if( document.getElementById('divCenterItemButton') ) {
line = '
';
if( map_itemUTM17 !== '' ) {
if( parseInt(ddDist(map_dpUTM17,map_itemUTM17),10) > 10*map_pixel) {
line += '';
line += ' in center
';
line += poiDescription +' is not at map center';
} else {
line += ' ';
line += '
';
line += poiDescription + ' is at map center';
}
} else if( map_dist<1 ) {
if( parseInt(ddDist(map_dpUTM17,map_poiUTM17),10) > 10*map_pixel ) {
line += '';
line += ' in center
';
line += poiDescription + ' is not at map center';
} else {
line += ' ';
line += '
';
line += poiDescription + ' is at map center';
}
}
line += '