leaflet本地加载arcgis切片

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我是靠谱客的博主威武钥匙，最近开发中收集的这篇文章主要介绍leaflet本地加载arcgis切片，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述


var origin = [-20037700, 33711400];//图层起点坐标
var resolutions = [
8466.6836000338681, // Level 0
4233.341800016934, // Level 1
2116.670900008467, // Level 2
1058.3354500042335, // Level 3
529.16772500211675 // Level 4
];
var crs = new L.Proj.CRS(
'',
'+proj=cea +lon_0=0 +lat_ts=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs' , {
origin:
origin,
resolutions: resolutions
}
);
var map = L.map('map',{
crs: crs,
continuousWorld: true,
worldCopyJump: false
}).setView([23.39552, 113.308189], 0);


var tileLayer = new L.TileLayer.TileLoad('http://localhost:8080/resources/china', {
maxZoom: resolutions.length - 1,
minZoom: 0,
continuousWorld: true
});
tileLayer.addTo(map);

/**
* 加载本地arcgis切片类
*
* @author ful
* @date 2014-09-03
* @copyright (c)
*/
/**
* 继承自TileLayer
* @param {Object} tomcat中映射该切片目录url
* @param {Object} options
*/
L.TileLayer.TileLoad = L.TileLayer.extend({
initialize: function (url, options) {
options = L.setOptions(this, options);
this.url = url + "/Layers/_alllayers/{z}/{x}/{y}.png";
L.TileLayer.prototype.initialize.call(this, this.url, options);
}
});
/**
* 重写TileLayer中获取切片url方法
* @param {Object} tilePoint
*/
L.TileLayer.prototype.getTileUrl = function(tilePoint) {
return L.Util.template(this._url, L.extend({
s: this._getSubdomain(tilePoint),
z: function() {
var value = tilePoint.z.toString(16);
return "L" + pad(value, 2);
},
x: function() {
var value = tilePoint.y.toString(16);
return "R" + pad(value, 8);
},
y: function() {
var value = tilePoint.x.toString(16);
return "C" + pad(value, 8);
}
}));
};
L.tileLayer.tileLoad = function(url, options){
return new L.TileLayer.TileLoad(url, options);
};
/**
* 高位补全方法
* @param {Object} 数字类型字符串
* @param {Object} 总位数，不足则高位补0
*/
var pad = function(numStr, n) {
var len = numStr.length;
while(len < n) {
numStr = "0" + numStr;
len++;
}
return numStr;
};