📄 aimslayers.js
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// aimsLayers.js
/*
* JavaScript template file for ArcIMS HTML Viewer
* dependent on aimsXML.js, ArcIMSparam.js, aimsCommon.js, aimsMap.js,
* aimsDHTML.js
*/
aimsLayersPresent=true;
var LayerName = new Array();
var LayerID = new Array();
var LayerVisible = new Array();
var LayerType = new Array();
var LayerIsFeature = new Array();
var LayerExtent = new Array();
var LayerMinScale = new Array();
var LayerMaxScale = new Array();
var LayerRenderString = new Array();
var LayerShapeField = new Array();
var LayerIDField = new Array();
var LayerFieldList = new Array();
var LayerFieldTypeList = new Array();
var LayerFieldSizeList = new Array();
var LayerFieldPrecisionList = new Array();
var LayerFields = new Array();
var LayerFieldType = new Array();
var LayerFieldPrecision = new Array();
//
var LayerFieldCount=0;
var ActiveLayer="";
var ActiveLayerType="";
var layerCount = 0;
var layerLeft = 0;
var layerRight = 0;
var layerTop = 0;
var layerBottom = 0;
var fieldIndex = 0;
var FeatureLayerCount = 0;
// field aliases arrays
var AliasFieldName = new Array();
var AliasFieldAlias = new Array();
var LayerListOpen=false;
var queryOpen = false;
var displayLayerInfoButton=false;
var setLayerVisible = new Array();
// check for query form. . . if present, update field list
function setActiveLayer(i) {
fieldIndex=0;
selectCount=0;
showBuffer=false;
ActiveLayer=LayerID[i];
ActiveLayerType=LayerType[i];
ActiveLayerIndex=i;
setLayerFields(i);
if (useGeocode) {
// if active layer is geocodeable - set current geocode layer to active layer
if (GCLayerCount>0) {
var j =-1;
for (var k=0;k<GCLayerId.length;k++) {
if (ActiveLayer==GCLayerId[k]) j=k;
}
if (j!=-1) {
GCActiveLayer=j;
}
}
}
if (queryOpen) {
queryForm();
} else {
if ((useExternalWindow) || (!useTextFrame)) {
Win1 = window.open("","QueryWindow","width=575,height=120,scrollbars=yes,resizable=yes");
theFrame = "opener";
if (parent.MapFrame!=null) theFrame = "opener.parent.MapFrame";
} else {
Win1 = parent.TextFrame;
Win1.document.open();
}
Win1.document.open();
Win1.document.writeln('<html><meta http-equiv="Content-Type" content="text/html; charset=' + charSet + '"><head><title>' + titleList[1] + '</title></head>');
Win1.document.writeln('<body bgcolor="' + tableBackColor + '" text="Black" link="Blue" vlink="Gray" LEFTMARGIN=0 onload="window.focus()">');
Win1.document.writeln('<center><FONT FACE="Arial" SIZE="-1"><b>' + LayerName[ActiveLayerIndex] + msgList[20] + '</b>');
Win1.document.writeln('</font></center></body></html>');
Win1.document.close();
}
}
// write out form for layerList in separate window
function writeLayerListForm() {
var Win1 = open(appDir + "toc.htm","LayerListWindow","width=190,height=300,scrollbars=yes,resizable=yes");
Win1.focus();
Win1=null;
}
// set up the LayerVisible array for map display
function setupLayerVisible() {
//alert("setupLayerVisible");
var toggleCount = LayerVisible.length;
if (setLayerVisible.length<toggleCount) toggleCount = setLayerVisible.length;
for (var i=0;i<toggleCount;i++) {
LayerVisible[i] = setLayerVisible[i];
}
}
// get list of layers, id/shape fields, scalefactors, etc.
function getLayers(theReply) {
//alert("LayerInfo:\n" + theReply.length);
var theReplyUC = theReply.toUpperCase();
LayerFields.length = 1;
var startpos = 0;
var endpos = 0;
var pos = -1;
var lpos = 1;
var epos = 1;
var zpos=1;
var zpos2 = 1;
var tempString="";
var visString = "";
var typeString="";
var fieldString = "";
var testString = "";
var testString2 = "";
var minString = "";
var maxString = "";
if (LayerID.length>0) {
//layerCount = LayerID.length;
//alert("Already got layer parameters");
} else {
//alert("Getting layer parameters");
var fieldCount = 0;
layerCount = 0;
LayerName.length=1;
LayerType.length=1;
LayerVisible.length=1;
LayerExtent.length=1;
LayerIsFeature.length=1;
LayerID.length=1;
LayerIDField.length=1;
LayerShapeField.length=1;
LayerMinScale.length=1;
LayerMaxScale.length=1;
LayerFieldTypeList.length=1;
LayerFieldList.length=1;
LayerRenderString.length=1;
LayerFieldSizeList.length=1;
LayerFieldPrecisionList.length=1;
layerCount = 0;
var layerMinX=0;
var layerMinY=0;
var layerMaxX=0;
var layerMaxY=0;
//alert("Processing LayerInfo");
lpos = theReplyUC.indexOf("<LAYERINFO",zpos);
while (lpos > -1) {
//alert("<LAYERINFO - pos " + lpos );
if (lpos != -1) {
zpos = theReplyUC.indexOf("</LAYERINFO",lpos);
//alert("</LAYERINFO - pos " + zpos);
if (zpos!=-1) {
pos = theReplyUC.indexOf("NAME=",lpos);
if (pos != -1) {
startpos = pos + 6;
endpos = theReply.indexOf(dQuote, startpos);
tempString = theReply.substring(startpos,endpos);
tempString = tempString.replace(/'/g, "'");
LayerName[layerCount] = tempString;
testString2 = 'TYPE="FEATURECLASS"';
pos = theReplyUC.indexOf(testString2,lpos);
if ((pos != -1) && (pos<zpos))
LayerIsFeature[layerCount]=true;
else LayerIsFeature[layerCount]=false;
//startpos = theReplyUC.indexOf("VISIBLE=",endpos);
startpos = theReplyUC.indexOf("VISIBLE=",lpos);
if (startpos != -1) {
startpos = startpos + 9;
endpos = startpos + 4;
visString = theReply.substring(startpos,endpos);
}
startpos = theReplyUC.indexOf(" ID=",lpos);
if ((startpos != -1) && (startpos<zpos)) {
startpos = startpos + 5;
endpos = theReply.indexOf(dQuote, startpos);
tempString = theReply.substring(startpos,endpos);
tempString = tempString.replace(/'/g, "'");
LayerID[layerCount] = tempString;
} else {
LayerID[layerCount] = LayerName[layerCount];
}
//alert(LayerID[layerCount]);
if (visString=="true") {LayerVisible[layerCount] = 1} else {LayerVisible[layerCount] = 0};
//alert(startpos + "/" + LayerName[layerCount] + ":" + visString);
startpos = theReplyUC.indexOf("MINSCALE=",lpos);
if ((startpos != -1) && (startpos<zpos)) {
startpos += 10;
endpos = theReply.indexOf(dQuote, startpos);
minString = theReply.substring(startpos,endpos);
minString = setDecimalString(minString);
LayerMinScale[layerCount] = parseFloat(minString);
} else {
LayerMinScale[layerCount] = 0;
}
startpos = theReplyUC.indexOf("MAXSCALE=",lpos);
if ((startpos != -1) && (startpos<zpos)) {
startpos += 10;
endpos = theReply.indexOf(dQuote, startpos);
maxString = theReply.substring(startpos,endpos);
maxString = setDecimalString(maxString);
LayerMaxScale[layerCount] = parseFloat(maxString);
} else {
LayerMaxScale[layerCount] = 1.7976931348623157E308;
}
//alert("MinScale:" + LayerMinScale[layerCount] + "\nMaxScale:" + LayerMaxScale[layerCount]);
if (LayerIsFeature[layerCount]) {
startpos = theReplyUC.indexOf("<FCLASS TYPE=",lpos);
zpos2= theReplyUC.indexOf("</FCLASS",lpos);
if (startpos != -1) {
startpos = startpos+14;
endpos = theReply.indexOf(dQuote, startpos);
typeString = theReply.substring(startpos,endpos);
} else {
typeString = "image";
}
} else {
typeString = "image";
}
LayerType[layerCount] = typeString;
var theXYs = getEnvelopeXYs(theReply, lpos);
tempString = theXYs[0] + "|" + theXYs[1] + "|" + theXYs[2] + "|" + theXYs[3];
endpos = xmlEndPos;
theXYs=null;
LayerExtent[layerCount] = tempString;
LayerFieldList[layerCount] = "";
LayerFieldTypeList[layerCount] = "";
LayerFieldSizeList[layerCount] = "";
LayerFieldPrecisionList[layerCount] = "";
LayerIDField[layerCount] = "";
LayerShapeField[layerCount] = "";
if (LayerIsFeature[layerCount]) {
var jpos = 1;
var fldCount = 0;
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