arcgis TextSymbol 换行问题

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首先找到这个文件 esri.symbol.MultiLineTextSymbol.js

然后替换

require(["esri/layers/LabelLayer"], function(ll)
{
if( typeof esri.layers.LabelLayer.prototype._addLabel == 'function' )
{
esri.layers.LabelLayer.prototype._addLabel2 = esri.layers.LabelLayer.prototype._addLabel;
esri.layers.LabelLayer.prototype._addLabel = function(a,b,c,e,g,k,m)
{
// replace \n by <br>
a = a.replace(/\n/g, "<br />");
this._addLabel2(a,b,c,e,g,k,m);
}
}
});

require(["esri/symbols/TextSymbol", "dojox/gfx/svg"], function(ts, svg)
{
if( typeof dojox.gfx.svg.Text.prototype.setShape == 'function' )
{
dojox.gfx.svg.Text.prototype.setShape = function(p)
{
this.shape = dojox.gfx.makeParameters(this.shape, p);
this.bbox = null;
var r = this.rawNode, s = this.shape;
r.setAttribute("x", s.x);
r.setAttribute("y", s.y);
r.setAttribute("text-anchor", s.align);
r.setAttribute("text-decoration", s.decoration);
r.setAttribute("rotate", s.rotated ? 90 : 0);
r.setAttribute("kerning", s.kerning ? "auto" : 0);
r.setAttribute("text-rendering", "optimizeLegibility");

while(r.firstChild)
r.removeChild(r.firstChild);

if(s.text)
{
var texts = s.text.replace(/<br\s*\/?>/ig, "\n").split("\n");
var lineHeight = 1.1 * parseInt(document.defaultView.getComputedStyle(r, "").getPropertyValue("font-size"), 10);
if( isNaN(lineHeight) || !isFinite(lineHeight) )
lineHeight = 15;

for(var i = 0, n = texts.length; i < n; i++)
{
var tspan = (document.createElementNS ? document.createElementNS(dojox.gfx.svg.xmlns.svg, "tspan") : document.createElement("tspan"));
tspan.setAttribute("dy", i ? lineHeight : -(texts.length-1)*lineHeight/2);
tspan.setAttribute("x", s.x);
tspan.appendChild((dojox.gfx.useSvgWeb ? document.createTextNode(texts[i], true) : document.createTextNode(texts[i])));
r.appendChild(tspan);
}
}

return this;
}
}
});

然后在页面中把该js文件引入。

用\n来进行换行

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