【问题标题】:Google Maps API KML layer change color for each layerGoogle Maps API KML 图层为每个图层更改颜色
【发布时间】:2013-04-28 10:34:27
【问题描述】:

我需要帮助更改每个 KML 图层的颜色和/或脚本下方的随机颜色,用于 Google Maps Api。我在下面附上了整个脚本。我想知道如何更改每个多边形的填充和边框并生成随机颜色。这是一个动态 SQL 脚本。任何帮助将不胜感激。谢谢。

enter code here
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<link href="http://code.google.com/apis/maps/documentation/javascript/examples/default.css"   rel="stylesheet" type="text/css" />
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
function createCookie(name,value,days) {
if (days) {
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
var expires = "; expires="+date.toGMTString();
}
else var expires = "";
document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
return null;
}
function eraseCookie(name) {
createCookie(name,"",-1);
}
function initialize() {
var soil = new google.maps.LatLng(41.875696,-87.624207);
var myOptions = {
zoom: 7,
center: new google.maps.LatLng(36.4098320, -85.2748718),
mapTypeId: google.maps.MapTypeId.TERRAIN
}
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
layerl0 = new google.maps.FusionTablesLayer({
query: {
select: "'col2'",
from: '1-nKJJErStEiMLY52mxzBxhjizorvs5ZXDJXu_IA'
},
map: map,
styleId: 1,
templateId: 1
});
var
ctaLayer = new        google.maps.KmlLayer('http://casoilresource.lawr.ucdavis.edu/soil_web/export.php?  format=kmz&srid=4326&mukey_query=527031&BBOX=1,1,1,1',    {preserveViewport:false});ctaLayer.setMap(map);
ctaLayer = new    google.maps.KmlLayer('http://casoilresource.lawr.ucdavis.edu/soil_web/export.php?   format=kmz&srid=4326&mukey_query=527128&BBOX=1,1,1,1',    {preserveViewport:false});ctaLayer.setMap(map);
ctaLayer = new   google.maps.KmlLayer('http://casoilresource.lawr.ucdavis.edu/soil_web/export.php?  format=kmz&srid=4326&mukey_query=527489&BBOX=1,1,1,1',   {preserveViewport:false});ctaLayer.setMap(map);
ctaLayer = new  google.maps.KmlLayer('http://casoilresource.lawr.ucdavis.edu/soil_web/export.php? format=kmz&srid=4326&mukey_query=527504&BBOX=1,1,1,1',  {preserveViewport:false});ctaLayer.setMap(map);
ctaLayer = new  google.maps.KmlLayer('http://casoilresource.lawr.ucdavis.edu/soil_web/export.php? format=kmz&srid=4326&mukey_query=527505&BBOX=1,1,1,1',  {preserveViewport:false});ctaLayer.setMap(map);
ctaLayer = new  google.maps.KmlLayer('http://casoilresource.lawr.ucdavis.edu/soil_web/export.php? format=kmz&srid=4326&mukey_query=527560&BBOX=1,1,1,1',  {preserveViewport:false});ctaLayer.setMap(map);
ctaLayer = new    google.maps.KmlLayer('http://casoilresource.lawr.ucdavis.edu/soil_web/export.php?   format=kmz&srid=4326&mukey_query=528148&BBOX=1,1,1,1',    {preserveViewport:false});ctaLayer.setMap(map);
ctaLayer = new    google.maps.KmlLayer('http://casoilresource.lawr.ucdavis.edu/soil_web/export.php?   format=kmz&srid=4326&mukey_query=529859&BBOX=1,1,1,1',   {preserveViewport:false});ctaLayer.setMap(map);
ctaLayer = new   google.maps.KmlLayer('http://casoilresource.lawr.ucdavis.edu/soil_web/export.php?  format=kmz&srid=4326&mukey_query=2396878&BBOX=1,1,1,1',   {preserveViewport:false});ctaLayer.setMap(map);
}
</script>
</head>
<body onload="initialize()">
<div id="map_canvas" style="width: 600px; height: 450px;"></div>
</body>
</html>

【问题讨论】:

    标签: jquery google-maps google-maps-api-3 kml


    【解决方案1】:

    您无法使用 Google Maps API v3 更改 KmlLayer 中多边形的颜色。您可以更改生成的 KML 以设置颜色。

    KML Reference

    example of multiple KML files with geoxml3

    example of changing colors (highlighting) with geoxml3

    【讨论】:

    • 谢谢,但我希望覆盖图层颜色而不是多边形本身。一定有办法覆盖外部 KML 图层颜色?
    • 不适用于 KmlLayer(至少目前是这样)。如果将 KML 导入 FusionTables,则可以在 FusionTablesLayer 中对其进行修改。如果您使用将 KML 呈现为原生 Google Maps API v3 对象的第三方 KML 解析器(如 geoxml3),您可以修改它们的属性,但对于复杂的 KML 可能会出现性能问题。
    • 谢谢,看来我必须使用第三方,因为数据是动态的,对于融合表来说太大了。我将如何用 geoxml3 编写它?
    【解决方案2】:

    您可以使用 geoxml3 更改 kml 颜色。这是一个链接..see this example

    【讨论】:

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