/// <summary>
/// 将已设置好的样式添加到唯一值渲染中去
/// </summary>
/// <param name="layer"></param>
/// <param name="symbols"></param>
public void SetSymbolsToValueRenderedLayer(MapObjects2.MapLayer layer, Dictionary <string, MapObjects2.Symbol> symbols)
{
if (layer.Renderer == null)
{
throw new Exception("the layer has not set a render.");
}
if (layer.Renderer is MapObjects2.ValueMapRenderer)
{
throw new Exception("the layer has a render,but not a valuerender.");
}
Dictionary <string, MapObjects2.Symbol> .KeyCollection oKeys = symbols.Keys;
MapObjects2.ValueMapRenderer oValueRender = layer.Renderer as MapObjects2.ValueMapRenderer;
int iValueIndex = -1;
MapObjects2.Symbol oSymbol = null;
foreach (string sKey in oKeys)
{
iValueIndex = this.GetValueIndexByRenderValue(oValueRender, sKey);
if (iValueIndex != -1 && symbols.TryGetValue(sKey, out oSymbol))
{
this.CopySymbolToAnother(oSymbol, oValueRender.get_Symbol((short)iValueIndex));
}
}
}
private int GetValueIndexByRenderValue(MapObjects2.ValueMapRenderer render, string renderValue)
{
int iValueCount = render.ValueCount;
for (short i = 0; i < iValueCount; i++)
{
if (renderValue.Equals(render.get_Value(i)))
{
return((int)i);
}
}
return(-1);
}