📄 layerinfo.htm

📁 最基本的IMS功能可以调试
💻 HTM
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<html>
<head>
	<title>Layer Parameters</title>
	<SCRIPT TYPE="text/javascript" LANGUAGE="JavaScript" SRC="ArcIMSparam.js"></SCRIPT>
	<SCRIPT TYPE="text/javascript" LANGUAGE="JavaScript" SRC="javascript/aimsLayers.js"></SCRIPT>
<SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript">
//var cmdString = document.location.search;

// encoding for XML header
var localeEncoding = 'encoding="UTF-8" ';
var XMLMode = 1;
var lastURL = "";
// client version
var cVersion = "&ClientVersion=4.0"; 
// get machine name
var hostName = document.location.host;
// the base servlet connector URL
var connectorURL = "http://" + hostName + "/servlet/com.esri.esrimap.Esrimap?ServiceName=redirect";

var sQuote = "'";
var dQuote = '"';
// character used by browser in decimals - either point or comma
var decimalChar = ((("theChar is" + (10/100)).indexOf("."))==-1) ? "," : ".";
// ending position to start parse scan of XML string
var xmlEndPos = 0;


// send in XML request and get XML response - uses helper applet
function sendToServer(URLString,XMLRequest,theType) {
	if (parent.PostFrame.document.forms[0]!=null) {
		lastURL = URLString;
		XMLMode = theType;
			var theForm = parent.PostFrame.document.forms[0];
			//alert(URLString);
			URLString = URLString + cVersion;
			var requestURL = URLString;
			if (theForm.RedirectURL!=null) {
				if (isNotSameHostInURL(URLString, hostName)) {
					requestURL = connectorURL;
					theForm.RedirectURL.value = URLString;
					
				} else {
					theForm.RedirectURL.value = "";
				}

				
			}
			if (doURLencode) {
				theForm.action=requestURL + "&Form=True&Encode=True";
			} else {
				theForm.action=requestURL + "&Form=True&Encode=False";
			}
			var xmlHeader = '<?xml version="1.0" ' + localeEncoding + '?>';
			theForm.ArcXMLRequest.value=xmlHeader + XMLRequest;
			//theForm.JavaScriptFunction.value = theFunction;
			theForm.submit();
			
	} else {
		alert(msgList[11]);
	}
		
}

// process the response xml
function processXML(theReplyIn) {
	if (doURLencode) {
		theReplyIn = replacePlus(theReplyIn);
		var theReply = unescape(theReplyIn);
	} else {
		var theReply = theReplyIn;
	}
	var theError = getXMLErrorMessage(theReply);
	if (theError!="") {
		writePage(theError,lastURL);
		//alert(theError + "\n\n" + lastURL);
	} else {
		theError = checkForbiddenGetImageTag(theReply);
		if (theError=="") {
			switch(XMLMode) {
				case 1:
					processLayers(theReply);
					break
				default:
					alert("default:\n" + theReply);
			}
		} else {
			writePage(theError,lastURL);
		}
	}

}

// replace +  in string with space to allow parsing of unescaped xml response
function replacePlus(inText) {
     var re = /\+/g;
      inText = inText.replace(re," ");
     return inText;
}

function requestInfo(theType) {
	var URLString = imsURL;
	//if (theType==2) URLString = imsOVURL;
	var XMLRequest = '<ARCXML version="1.1">\n<REQUEST>\n<GET_SERVICE_INFO renderer="false" extensions="false" fields="true" />\n</REQUEST>\n</ARCXML>\n';
	sendToServer(URLString,XMLRequest,theType)
}

function processLayers(theReply) {
	
		var pos = theReply.indexOf("ERROR");
		if (pos!=-1) {
			alert(theType + "\n" + getXMLErrorMessage(theReply));
		} else {
			//alert(theReply);
			getLayers(theReply);
			var theString = "// Layer Parameters\n\n";
			for (var i=0;i<LayerID.length;i++) {
				theString += "// Parameters for " + LayerName[i] + " layer\n";
				theString += 'LayerName[' + i + '] = "' + LayerName[i] + '";\n';
				theString += 'LayerID[' + i + '] = "' + LayerID[i] + '";\n';
				theString += 'LayerType[' + i + '] = "' + LayerType[i] + '";\n';
				theString += 'LayerVisible[' + i + '] = ' + LayerVisible[i] + ';\n';
				theString += 'LayerExtent[' + i + '] = "' + LayerExtent[i] + '";\n';
				theString += 'LayerMinScale[' + i + '] = ' + LayerMinScale[i] + ';\n';
				theString += 'LayerMaxScale[' + i + '] = ' + LayerMaxScale[i] + ';\n';
				theString += 'LayerIsFeature[' + i + '] = ' + LayerIsFeature[i] + ';\n';
				theString += 'LayerFieldList[' + i + '] = "' + LayerFieldList[i] + '";\n';
				theString += 'LayerFieldTypeList[' + i + '] = "' + LayerFieldTypeList[i] + '";\n';
				theString += 'LayerFieldSizeList[' + i + '] = "' + LayerFieldSizeList[i] + '";\n';
				theString += 'LayerFieldPrecisionList[' + i + '] = "' + LayerFieldPrecisionList[i] + '";\n';
				theString += 'LayerIDField[' + i + '] = "' + LayerIDField[i] + '";\n';
				theString += 'LayerShapeField[' + i + '] = "' + LayerShapeField[i] + '";\n';
				theString += 'LayerRenderString[' + i + '] = "' + LayerRenderString[i] + '";\n';
				theString += "\n";
			}
			theString += "FeatureLayerCount = " + FeatureLayerCount + ";\n";
			theString += "layerCount = " + layerCount + ";\n";
			
			document.forms[0].layerParams.value = theString;
		}
}

// check if there is an error message in the response
function getXMLErrorMessage(theString) {
	var pos1 = 0;
	var pos2 = 0;
	var pos3 = 0;
	var theError = "";
	pos3 = theString.indexOf("<ERROR");
	if (pos3!=-1) {
		pos1 = theString.indexOf(">",pos3);
		pos1 += 1;
		pos2 = theString.indexOf("</ERROR");
		theError = theString.substring(pos1,pos2)
	}
	return theError;

}

// get directory path of URL
function getPath(theFullPath) {
	var theSlash = theFullPath.lastIndexOf("/");
	var theDir = theFullPath.substring(0,theSlash);
	if (theDir==null) theDir="";
	theDir = theDir + "/";
	return theDir;

}

function writePage(errorString,theURL) {
	document.open();
	document.writeln('<html>');
	document.writeln('<body BGCOLOR="White" TEXT="Black" TOPMARGIN=20>');
	document.writeln('<DIV ALIGN="center">');
	document.writeln('	<FONT FACE="Arial,sans-serif" SIZE="+1">');
	document.writeln('		<B>');
	document.writeln(errorString);
	document.writeln('<p>');
	document.writeln('	</FONT>');
	document.writeln('	<FONT FACE="Arial,sans-serif" SIZE="-1">');
	document.writeln(theURL);
	document.writeln('		</B>');
	document.writeln('	</FONT>');
	document.writeln('</DIV>');
	document.writeln('</body>');
	document.writeln('</html>');
	document.close();
}

// test for forbidden tags for this service
function checkForbiddenGetImageTag(theString) {
	var theError="";
	var dQuote = '"';
	var startpos = theString.indexOf("CAPABILITIES forbidden=");
	if (startpos!=-1) {
		startpos = startpos + 24;
		endpos = theString.indexOf(dQuote,startpos);
		var forbiddenTags = theString.substring(startpos,endpos);
		//alert(forbiddenTags);
		if (forbiddenTags.indexOf("GET_IMAGE")!=-1) {
			theError = msgList[119];
			// No image requests!!!! Abort viewer
		}
	}
	return theError;
}

// check if theURL has different host from theHost
function isNotSameHostInURL(theURL, theHost) {
	var startpos = theURL.indexOf("//");
	if (startpos==-1) {
		startpos = 0;
	} else {
		startpos = startpos + 2;
	}
	var endpos = theURL.indexOf("/",startpos);
	if (endpos==-1) endpos = theURL.length;
	var thisHost = theURL.substring(startpos,endpos);
	if (thisHost==theHost) {
		return false;
	} else {
		return true;
	}
}

// get min and max x,y's from xml stream . . . return an array with values
function getEnvelopeXYs(theString, startpos) {
	var theEnvelope = new Array();
	//forceCommaInRequest[activeMapServiceIndex] = false;
	theString = theString.toUpperCase();
	var tempString = "";
	var pos = theString.indexOf("ENVELOPE",startpos);
	if (pos!=-1) {
		pos = pos + 8;
		startpos = theString.indexOf("MINX=",pos);
		startpos += 6;
		var endpos = theString.indexOf(dQuote,startpos);
		tempString = theString.substring(startpos,endpos);
		theEnvelope[0] = parseFloat(setDecimalString(tempString)); 
		startpos = theString.indexOf("MINY=",pos);
		startpos += 6;
		endpos = theString.indexOf(dQuote,startpos);
		tempString = theString.substring(startpos,endpos);
		theEnvelope[1] = parseFloat(setDecimalString(tempString)); 
		startpos = theString.indexOf("MAXX=",pos);
		startpos += 6;
		endpos = theString.indexOf(dQuote,startpos);
		tempString = theString.substring(startpos,endpos);
		theEnvelope[2] = parseFloat(setDecimalString(tempString)); 
		startpos = theString.indexOf("MAXY=",pos);
		startpos += 6;
		endpos = theString.indexOf(dQuote,startpos);
		tempString = theString.substring(startpos,endpos);
		theEnvelope[3] = parseFloat(setDecimalString(tempString)); 
	}
	return theEnvelope;

}

// set number string to have decimal character to match browser language type - point or comma
function setDecimalString(numberString) {
	if (decimalChar==".") {
		numberString = numberString.replace(/,/g, ".");
	} else {
		numberString = numberString.replace(/./g, ",");
	}
	return numberString;
}


</SCRIPT>
</head>

<body bgcolor="#666666" text="White" topmargin=5>
<div align="center">
<table cellspacing="5" cellpadding="5" bgcolor="#003366">
	<tr>
		<td align="center" valign="top" bgcolor="#006699">		
			<font face="Arial,Helvetica,sans-serif" size="-1">
				<form>
					<b>Layer Parameters</b><br>
					<textarea cols="80" rows="20" name="layerParams">
					</textarea><br>
					To use these in the viewer:<br>
					Create a file called aimsLayerParam.js in the site directory and paste the above text into it.<BR>
					Then in MapFrame.htm, uncomment the following line:<br>
					<font color="#CCCCCC">&lt;!-- &lt;SCRIPT TYPE="text/javascript" LANGUAGE="JavaScript" SRC="aimsLayerParam.js"&gt;&lt;/SCRIPT&gt; --&gt;</font><br>
					Applying these changes will speed up layer parameter setup.<br> 
					This may be noticeable only with large MapServices.
				</form>
			</font>
		</td>
	</tr>
</table>
</div>


</body>
</html>
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