使用ArcXML在HTML Viewer中动态添加数据层

');
if (isSecond) document.write('');
}
if (parent.MapFrame.canLoad) {
// Load MapService. . . requires aimsGeneric.js
document.write('');
}

改成:
if (parent.MapFrame.allowOptions) {
// Options. . . requiers aimsOptions.js... allowOptions is set to true in

this file
document.write('');
if (isSecond) document.write('');
}
if (parent.MapFrame.addDynLayer) {
document.write('');
if (isSecond) document.write('');
}

if (parent.MapFrame.canLoad) {
// Load MapService. . . requires aimsGeneric.js
document.write('');
}

6.为了添加动态图层,请求新的地图图片,进行如下编辑:
A.在文本编辑器中打开aimsClick.js.在clickFunction()函数中将下列代码:
function clickFunction (toolName) {
if (hasLayer("measureBox"))
hideLayer("measureBox");
switch(toolName) {

// Zooming functions
case "zoomin":
改成:
function clickFunction (toolName) {
if (hasLayer("measureBox"))
hideLayer("measureBox");
switch(toolName) {
// Zooming functions
case "CustomAXL":

if (aimsCustomPresent){
aimsCustomPresent=false
} else {
aimsCustomPresent=true;
}

parent.MapFrame.sendMapXML();

break;

case "zoomin":
当aimsCustomPresent为true时,aimsXML.js文件中writeXML()函数中下面这行代码会调用

aimsCustom.js文件中的addCustomToMap1()函数.
if (aimsCustomPresent) theString += addCustomToMap1();
注:每次有更新地图图片的请求时,writeXML() 都会被调用.
7.在文本编辑器中打开aimsCustom.js,作下列改动:
A.将这行代码"aimsCustomPresent=true;"改成aimsCustomPresent=false;
B.将addCustomToMap1() 函数中的代码段:
function addCustomToMap1(){
var customString = "";
/*
customString += 'n';
customString += '';
customString += 'nn';
*/
return customString;
}
改成:
function addCustomToMap1(){
var customString = "";
customString += 'n';
customString += 'n';
customString += 'n';
customString += '
id="2">n';
customString += '
workspace="shp_ws-1" />n';
customString += 'n';
customString += 'n';
customString += 'n';
customString += 'n';
return customString;
}
8.保存所有的文件
9.在浏览器中打开WEB站点.注:会弹出消息框,显示客户端的ArcXML(REQUEST)已经发送到服务

器,且收到服务器返回的ArcXML()(RESPONSE).
10.点击工具栏中的扳手图标.我们定制的ArcXML字符串就添加到了GET_IMAGE请求中发送到

ArcIMS服务器.你可以看到一个REQUEST(包含aimsCustom.js里addCustomToMap1()中的字符串

)和一个RESPONSE(包含输出的图片的位置)

"MAP"这个ArcXML标签有"dynamic"属性,可以不修改mapservice(地图服务)的AXL配置文件而 是将图层动态地添加到mapservice.本文将为HTML Viewer中实现此功能举例.
过程描述
下面的例子将动态地将cities.shp shapefile添加到包含states.shp的图像地图服务中.可以 在ArcIMS产品的例子只找到这两个数据集. 1.在Author或文本编辑器中新建AXL文件,states shapefile是其唯一的层. 2.在文本编辑器中打开该AXL文件,将Map元素作如下改动:	'); document.write(' vspace=1 border=0 alt=" ' + t.buttonList[40] + '" onmousedown="parent.MapFrame.writeOptionForm();" onmouseover="window.status=' ' + t.buttonList[40] + ''">'); isSecond = !isSecond document.writeln('
'); document.write(' vspace=1 border=0 alt=" ' + t.buttonList[41] + '" onmousedown="parent.MapFrame.loadMapForm();" onmouseover="window.status=' ' + t.buttonList[41] + ''">'); document.writeln('	'); document.write(' vspace=1 border=0 alt=" ' + t.buttonList[40] + '" onmousedown="parent.MapFrame.writeOptionForm();" onmouseover="window.status=' ' + t.buttonList[40] + ''">'); isSecond = !isSecond document.writeln('
'); document.write(' vspace=1 border=0 alt="Add Dynamic Layer" onmousedown="parent.MapFrame.clickFunction('CustomAXL');" onmouseover="window.status='Add Dynamic Layer '">'); isSecond = !isSecond document.writeln('
'); document.write(' vspace=1 border=0 alt=" ' + t.buttonList[41] + '" onmousedown="parent.MapFrame.loadMapForm();" onmouseover="window.status=' ' + t.buttonList[41] + ''">'); document.writeln('