aimscommon.js

最基本的IMS功能可以调试

// aimsCommon.js
/*
*  JavaScript template file for ArcIMS HTML Viewer
*		dependent on aimsXML.js, ArcIMSparam.js, aimsMap.js
*/

aimsCommonPresent=true;


var legendImage="";
var modeBlurb = modeList[0];

// delimiter to be used between coordinates in strings in ArcXML request
var coordsDelimiter = " ";
// delimiter to be used between pairs of coordinates in strings in ArcXML request
var pairsDelimiter = ";";

var chkUnits=false;
var legendTemp = false;
var ovIsVisible=false;

var showBuffer = false;

var chkGeocodeLayers = false;

var isArcMapService = false;

// character used by browser in decimals - either point or comma
var decimalChar = ((("theChar is" + (10/100)).indexOf("."))==-1) ? "," : ".";
//alert("Decimal character: " + decimalChar);

/*
***************************************************************************************

Common functions

***************************************************************************************
*/



// when there is a mapservice to load, it proceeds from here
function startUp() {

	if (imsURL != "") {
		//alert(imsURL);
		iWidth = parseInt(document.theImage.width);
		iHeight = parseInt(document.theImage.height);
		if (imsURL!=imsOVURL) toggleOVVisible = false;
		getStartExtent();
		
	}
}

// get the starting extent
function getStartExtent() {
	if (parent.PostFrame.document.forms[0]!=null) {
		var theString = '<ARCXML version="1.1">\n<REQUEST>\n<GET_SERVICE_INFO renderer="false" extensions="true" ';
		if (aimsLayersPresent) {
			if (LayerID.length>0) {
				theString += 'fields="false" ';
			} else {
				theString += 'fields="true" ';
			}
		} else {
			theString += 'fields="false" ';
		}
		theString += '/>\n</REQUEST>\n</ARCXML>';
		var theReply="";
		if (hasOVMap) {
			theString = '<ARCXML version="1.1">\n<REQUEST>\n<GET_IMAGE><PROPERTIES>\n';
			theString += '<IMAGESIZE height="' + i2Height + '" width="' + i2Width + '" />\n';
			if (mapBackColor!="") {
				theString += '<BACKGROUND color="' + mapBackColor + '" />\n';
			}
			theString += '</PROPERTIES>\n';
			theString += '</GET_IMAGE>\n</REQUEST>\n</ARCXML>';
			sendToServer(imsOVURL,theString,902);
		} else {
				sendToServer(imsURL,theString,3);
		}
	} else {
		alert(msgList[2]);
	}
}

// process the start extent and set up layers
function processStartExtent(theReply) {
	//alert(theReply);
	checkForForbiddenTags(theReply);
	// check for separators in serviceinfo
	var endpos = 0;
	var startpos = 0;
	var pos = theReply.indexOf("<SEPARATORS");
	if (pos!=-1) {
		
		startpos = theReply.indexOf("ts=",pos);
		if (startpos!=-1) {
			startpos += 4;
			endpos = theReply.indexOf(dQuote,startpos);
			pairsDelimiter = theReply.substring(startpos,endpos);
		}
		startpos = theReply.indexOf("cs=",pos);
		if (startpos!=-1) {
			startpos += 4;
			endpos = theReply.indexOf(dQuote,startpos);
			coordsDelimiter = theReply.substring(startpos,endpos);
		}
		//alert("pairsDelimiter="+pairsDelimiter+"\ncoordsDelimiter="+coordsDelimiter);
		checkCoords();
	}
	isArcMapService = (theReply.indexOf("<LAYOUTINFO")!=-1);
	//alert("isArcMapService=" + isArcMapService); 
	if (isArcMapService) {
		if (autoAdjustForArcMapServer) {
			// adjust sizes when displayed by ArcMap Server
			var nasize = parseInt(NorthArrowSize)*2;
			NorthArrowSize = new String(nasize);
		}
	}
	//alert("NorthArrowSize=" + NorthArrowSize);
	pos = theReply.indexOf("<MAPUNITS");
	if (pos!=-1) {
		startpos = theReply.indexOf("units=",pos);
		if (startpos!=-1) {
			startpos += 7;
			endpos = theReply.indexOf(dQuote,startpos);
			MapUnits = theReply.substring(startpos,endpos);
		}
	} else {
		// if the serviceinfo did not have MAPUNITS tag and units are set to Degrees
		 if (MapUnits=="DEGREES") {
		 	// if it is too big for the world. . . allow for oversize extent
				// default to Feet
		 	if ((eRight > 250) || (eTop > 150) || (eLeft < -250) || (eBottom < -150)) MapUnits="FEET";
			// alert(MapUnits);
		 } 
		 // if the serviceinfo doesn't have the info, allow the user to set Map Units.
		 setMapUnits=true;
	}
	MapUnits = MapUnits.toUpperCase();
	if (MapUnits=="DECIMAL_DEGREES") MapUnits = "DEGREES";
	
	if (getStartingExtent) {
		pos = theReply.indexOf("<PROPERTIES");
		var theXYs =  getEnvelopeXYs(theReply, pos)
		eLeft = theXYs[0];
		eBottom = theXYs[1];
		eRight = theXYs[2];
		eTop = theXYs[3];
		startLeft=eLeft;
		startRight=eRight;
		startTop=eTop;
		startBottom=eBottom;
	} else {
		eLeft=startLeft;
		eRight=startRight;
		eTop=startTop;
		eBottom=startBottom;
		xDistance = Math.abs(eRight-eLeft);
		var sFactor = xDistance / iWidth
	    var aspectRatio = iWidth / iHeight;
	    var extentRatio = (eRight-eLeft) / (eTop-eBottom);
	    if (extentRatio < aspectRatio) sFactor = (eTop-eBottom) / iHeight;
		mapScaleFactor = sFactor;
		
	}
	if (aimsLayersPresent) {
		getLayers(theReply);
		if (setLayerVisible.length>0) setupLayerVisible();
	}
	if (aimsQueryPresent) {
		if (useStoredQuery) checkStoredQueries(theReply);
	} else {
		useStoredQuery=false;
	}
	 xDistance = Math.abs(eRight-eLeft);
	 yDistance = Math.abs(eTop-eBottom);
	 xHalf = xDistance/2;
	 yHalf = yDistance/2;
	 panX = xDistance * panFactor;
	 panY = yDistance * panFactor;
	 mouseX = 0;
	 mouseY = 0;
	 pixelX = xDistance/iWidth;
	 pixelY = yDistance/iHeight;
	 mapX = eLeft;
	 mayY = eTop;
	 lastLeft = eLeft;
	 lastRight = eRight;
	 lastTop = eTop;
	 lastBottom = eBottom;
	 if (hasOVMap == false) {
		 fullLeft = limitLeft;
		 fullRight = limitRight;
		 fullTop = limitTop;
		 fullBottom = limitBottom;
		 fullWidth = Math.abs(fullRight - fullLeft);
		 fullHeight = Math.abs(fullTop - fullBottom);
	 
	 }
	if (aimsLayersPresent) {
	 	if ((hasTOC) && (showTOC)) {
		 	parent.TOCFrame.document.location=appDir+"toc.htm";
		}
	}
	if (aimsGeocodePresent) {
		if (aimsRoutePresent) {
			if ((useRoute) || (useReverseGeocode)) chkGeocodeLayers = true;
		
		} else {
			if (theReply.indexOf('<EXTENSION type="Geocode"')!=-1) {
				//alert("Has Geocode extension");
				if (useGeocode) {
					chkGeocodeLayers = true;
					useReverseGeocode=false;
					useRoute=false;
				} else {
					useGeocode=false;
					useReverseGeocode=false;
					chkGeocodeLayers = false;
					useRoute=false;
				}
			} else {
				//alert("Main Map Service not Geocodeable");
				if (imsGeocodeURL!=imsURL+"&CustomService=Geocode") {
					useGeocode=true;
					chkGeocodeLayers = true;	
					//alert("imsGeocodeURL is not imsURL");			
				} else {
					useGeocode=false;
					chkGeocodeLayers = false;
				}
				useReverseGeocode=false;	
				useRoute=false;
	
			}
		}
	} else {
		//alert("Geocode not available");
		useGeocode=false;
		useReverseGeocode=false;	
		chkGeocodeLayers = false;
	}
	//alert("chkGeocodeLayers=" + chkGeocodeLayers);
	//alert("useRoute=" + useRoute + "\nuseReverseGeocode=" + useReverseGeocode);
	if (parent.ToolFrame!=null) {
		//alert("Refreshing toolbar");
		parent.ToolFrame.document.location= appDir + "toolbar.htm";
	} 
	
	hideRetrieveData();
	if ((ovIsVisible) && (aimsDHTMLPresent)) {
		ovIsVisible = false;
		toggleOVMap();
	}

	if (chkGeocodeLayers) {
		
		getGeocodeLayers();
	} else {
		if ((aimsQueryPresent) && (highlightedOne!="") && (queryZoom)) {
			setStartQuery();
		} else {
			sendMapXML();
		}
	}
}


// request a list of available Image MapServices
function startMap() {
	showRetrieveData();
	if (aimsGenericPresent) {
		// only if aimsGeneric.js is loaded - for generic sample
		getDefaultParams()
		var theText = "<GETCLIENTSERVICES/>";
		sendToServer(catURL,theText,5);
		
	} else {
		startUp();
	}
}

/*  ************************
*	Extent functions
*	************************
*/

// get the Map Image width
function getMapWidth () {
	var mapFrameWidth = thePageWin.innerWidth;
	
	if (mapFrameWidth == null) {
		mapFrameWidth = thePageDoc.body.clientWidth;
	}
	return mapFrameWidth;
}

 //get the Map Image height
function getMapHeight () {
	var mapFrameHeight = thePageWin.innerHeight;
	
	if (mapFrameHeight == null) {
		mapFrameHeight = thePageDoc.body.clientHeight;
	}
	return mapFrameHeight;
}

function checkCurrentExtent() {
	var msg = msgList[3] + eLeft + msgList[4] + eBottom + msgList[5] + eRight + msgList[6] + eTop;
	var ratio1 = xDistance/fullWidth;
	msg += msgList[7] + ratio1;
	alert(msg);
}


/*  ************************
*	Mode display functions
*	************************
*/
// write out ModeFrame page
function writeModeFrame(currentMode) {
	parent.ModeFrame.document.location= appDir + "ModeFrame.htm";
}

// write out Mode on dynamic layer
function writeModeLayers(currentMode) {
	var content = '<font face="' + modeLayerFont + '"color="' +  modeLayerShadowColor + '"size=' + modeLayerSize + '><b>' + currentMode + '</b></font>';
	replaceLayerContent("theMode1",content);
	content = '<font face="' + modeLayerFont + '"color="' +  modeLayerColor + '"size=' + modeLayerSize + '><b>' + currentMode + '</b></font>';
	replaceLayerContent("theMode2",content);

}

/*  *****************************************************
*	Various String manipulation Functions
*	*****************************************************
*/

// swap out double quotes for single
function swapQuotes2(inText) {
	var doubleQuote = dQuote;
	var singleQuote = "'";
	var preTemp = "";
	var posTemp = "";
	var nextPos = 0;
	var ePos = inText.length;
	var pos=9;
	while (pos != -1) {
		pos = inText.indexOf(dQuote);
		if (pos!=-1) {
			nextPos=pos+1;
			preTemp = inText.substring(0,pos);
			posTemp = inText.substring(nextPos,ePos);
			inText = preTemp + sQuote + posTemp;
		}
	}
	return inText;
}

function swapQuotes(inText) {
	inText = inText.replace(/"/g, "'");
	return inText;
}

// convert hexidecimal rgb number to delimited decimal rgb
function convertHexToDec(hexColor) {
	var pos = hexColor.indexOf(",");