/// <summary>
/// 根据指定的标志名称，获取图层中对应的标志值
/// </summary>
/// <param name="pfLayer">图层</param>
/// <param name="sLabel">标志名称</param>
/// <returns>标志值</returns>
public static string GetUniqueValue(IFeatureLayer pfLayer, string sLabel)
{
IGeoFeatureLayer pGeoFLayer = pfLayer as IGeoFeatureLayer;
IFeatureRenderer pfRenderer = pGeoFLayer.Renderer;
if (pfRenderer is IUniqueValueRenderer)
{
IUniqueValueRenderer pUVRenderer = pfRenderer as IUniqueValueRenderer;
int nValueCount = pUVRenderer.ValueCount;
string sValue = null;
for (int i = 0; i < nValueCount; i++)
{
sValue = pUVRenderer.get_Value(i); // 如 "1,1" "0|1"
if (sLabel == pUVRenderer.get_Label(sValue))
{
return(sValue);
}
}
}
return("");
}
private static void AddSymbolNode(TreeNodeComLayer tnComLayer, object renderer)
{
int index;
LogicBaseTree logicBT = new LogicBaseTree();
ImageCollection treeImages = logicBT.TreeList.StateImageList as ImageCollection;
if (renderer is SimpleRenderer)
{
ISimpleRenderer simpleRenderer = (ISimpleRenderer)renderer;
ISymbol symbol = simpleRenderer.Symbol;
Image img = ConvertSymbolToImage.Convert(symbol, 16, 16);
index = treeImages.Images.Add(img);
//img.Save("d:\\" + index + ".JPG");
string label = simpleRenderer.Label;
TreeNodeSymbol tnSymbol = new TreeNodeSymbol()
{
Name = label, CustomValue = symbol
};
tnSymbol.ImageIndex = index;
tnComLayer.Add(tnSymbol);
}
else if (renderer is UniqueValueRenderer)
{
string renderLabel = "";
IUniqueValueRenderer uniqueValueRenderer = renderer as IUniqueValueRenderer;
for (int i = 0; i < uniqueValueRenderer.FieldCount - 1; i++)
{
renderLabel += uniqueValueRenderer.get_Field(i) + " /";
}
renderLabel += uniqueValueRenderer.get_Field(uniqueValueRenderer.FieldCount - 1);//FieldCount为地物分类数
//getImage(esriGeometryType.esriGeometryPolygon, Color.White).Save("D:\\111.jpg");
index = treeImages.Images.Add(getImage(esriGeometryType.esriGeometryPolygon, Color.White));
TreeNodeSymbol tnChartNode = new TreeNodeSymbol()
{
Name = renderLabel, CustomValue = uniqueValueRenderer
};
tnChartNode.ImageIndex = index;
tnComLayer.Add(tnChartNode);
for (int i = 0; i < uniqueValueRenderer.ValueCount; i++)//ValueCount为地物分类下的设施种类数
{
ISymbol symbol = uniqueValueRenderer.get_Symbol(uniqueValueRenderer.get_Value(i));
Image img = ConvertSymbolToImage.Convert(symbol, 16, 16);
//img.Save("D:\\121121.jpg");
index = treeImages.Images.Add(img);
TreeNodeSymbol tnSymbol = new TreeNodeSymbol()
{
Name = uniqueValueRenderer.get_Label(uniqueValueRenderer.get_Value(i)), CustomValue = symbol
};
tnSymbol.ImageIndex = index;
tnComLayer.Add(tnSymbol);
}
if (uniqueValueRenderer.UseDefaultSymbol)
{
ISymbol symbol = uniqueValueRenderer.DefaultSymbol;
Image img = ConvertSymbolToImage.Convert(symbol, 16, 16);
index = treeImages.Images.Add(img);
TreeNodeSymbol tnSymbol = new TreeNodeSymbol()
{
Name = uniqueValueRenderer.DefaultLabel, CustomValue = symbol
};
tnSymbol.ImageIndex = index;
tnComLayer.Add(tnSymbol);
}
}
else if (renderer is IChartRenderer)
{
IChartRenderer chartRenderer = renderer as IChartRenderer;
IRendererFields pFields = chartRenderer as IRendererFields;
string renderLabel = "";
for (int i = 0; i < pFields.FieldCount - 1; i++)
{
renderLabel += pFields.get_FieldAlias(i) + " /";
}
renderLabel += pFields.get_FieldAlias(pFields.FieldCount - 1);
index = treeImages.Images.Add(getImage(esriGeometryType.esriGeometryPolygon, Color.White));
TreeNodeSymbol tnChartNode = new TreeNodeSymbol()
{
Name = renderLabel, CustomValue = chartRenderer
};
tnChartNode.ImageIndex = index;
tnComLayer.Add(tnChartNode);
ISymbolArray symArray = chartRenderer.ChartSymbol as ISymbolArray;
for (int i = 0; i < symArray.SymbolCount; i++)
{
ISymbol symbol = symArray.get_Symbol(i);
Image img = ConvertSymbolToImage.Convert(symbol, 16, 16);
index = treeImages.Images.Add(img);
TreeNodeSymbol tnSymbol = new TreeNodeSymbol()
{
Name = pFields.get_FieldAlias(i), CustomValue = symbol
};
tnSymbol.ImageIndex = index;
tnComLayer.Add(tnSymbol);
}
}
else if (renderer is IClassBreaksRenderer)
{
IClassBreaksRenderer classRenderer = renderer as IClassBreaksRenderer;
index = treeImages.Images.Add(getImage(esriGeometryType.esriGeometryPolygon, Color.White));
TreeNodeSymbol tnChartNode = new TreeNodeSymbol()
{
Name = classRenderer.Field, CustomValue = classRenderer
};
tnChartNode.ImageIndex = index;
tnComLayer.Add(tnChartNode);
for (int i = 0; i < classRenderer.BreakCount; i++)
{
ISymbol symbol = classRenderer.get_Symbol(i);
Image img = ConvertSymbolToImage.Convert(symbol, 16, 16);
index = treeImages.Images.Add(img);
TreeNodeSymbol tnSymbol = new TreeNodeSymbol()
{
Name = classRenderer.get_Label(i), CustomValue = symbol
};
tnSymbol.ImageIndex = index;
tnComLayer.Add(tnSymbol);
}
}
else if (renderer is IRasterRenderer)
{
if (renderer is IRasterClassifyColorRampRenderer)
{
//MessageBox.Show("IRasterClassifyColorRampRenderer");
}
else if (renderer is IRasterUniqueValueRenderer)
{
//MessageBox.Show("IRasterUniqueValueRenderer");
}
else if (renderer is IRasterStretchColorRampRenderer)
{
////MessageBox.Show("IRasterStretchColorRampRenderer");
IRasterStretchColorRampRenderer pRSCRR = renderer as IRasterStretchColorRampRenderer;
index = treeImages.Images.Add(getImage(esriGeometryType.esriGeometryPolygon, Color.White));
TreeNodeSymbol tnChartNode = new TreeNodeSymbol()
{
Name = "<Value>", CustomValue = pRSCRR
};
tnChartNode.ImageIndex = index;
tnComLayer.Add(tnChartNode);
if (pRSCRR.ColorRamp.Size >= 3)
{
IEnumColors colors = pRSCRR.ColorRamp.Colors;
colors.Reset();
IColor c = colors.Next();
Color[] cArray = new Color[3];
int count = 0;
while (c != null)
{
count++;
if (count == 1)
{
cArray[0] = Color.FromArgb(c.RGB);
}
else if (count == pRSCRR.ColorRamp.Size / 2)
{
cArray[1] = Color.FromArgb(c.RGB);
}
else if (count == pRSCRR.ColorRamp.Size)
{
cArray[2] = Color.FromArgb(c.RGB);
}
c = colors.Next();
}
for (int i = 0; i < 3; i++)
{
Image img = getImage(esriGeometryType.esriGeometryPolygon, cArray[i]);
index = treeImages.Images.Add(img);
string label = "";
if (i == 0)
{
label = pRSCRR.LabelLow;
}
else if (i == 1)
{
label = pRSCRR.LabelMedium;
}
else if (i == 2)
{
label = pRSCRR.LabelHigh;
}
TreeNodeSymbol tnSymbol = new TreeNodeSymbol()
{
Name = label, CustomValue = cArray[i]
};
tnSymbol.ImageIndex = index;
tnComLayer.Add(tnSymbol);
}
}
}
else if (renderer is IRasterRGBRenderer)
{
//MessageBox.Show("IRasterRGBRenderer");
}
else if (renderer is IRasterColormap)
{
//MessageBox.Show("IRasterColormap");
}
else
{
//MessageBox.Show("未处理的IRasterRenderer类型： " + renderer.GetType().FullName);
}
}
else if (renderer is ITinRenderer)
{
if (renderer is ITinColorRampRenderer)
{
////MessageBox.Show("ITinColorRampRenderer");
ITinColorRampRenderer pTCRR = renderer as ITinColorRampRenderer;
index = treeImages.Images.Add(getImage(esriGeometryType.esriGeometryPolygon, Color.White));
TreeNodeSymbol tnChartNode = new TreeNodeSymbol()
{
Name = "Elevation", CustomValue = pTCRR
};
tnChartNode.ImageIndex = index;
tnComLayer.Add(tnChartNode);
for (int i = 0; i < pTCRR.BreakCount; i++)
{
ISymbol symbol = pTCRR.get_Symbol(i);
Image img = ConvertSymbolToImage.Convert(symbol, 16, 16);
index = treeImages.Images.Add(img);
TreeNodeSymbol tnSymbol = new TreeNodeSymbol()
{
Name = pTCRR.get_Label(i), CustomValue = symbol
};
tnSymbol.ImageIndex = index;
tnComLayer.Add(tnSymbol);
}
}
else if (renderer is ITinUniqueValueRenderer)
{
////MessageBox.Show("ITinUniqueValueRenderer");
ITinUniqueValueRenderer pTUVR = renderer as ITinUniqueValueRenderer;
index = treeImages.Images.Add(getImage(esriGeometryType.esriGeometryPolygon, Color.White));
TreeNodeSymbol tnChartNode = new TreeNodeSymbol()
{
Name = "Elevation", CustomValue = pTUVR
};
tnChartNode.ImageIndex = index;
tnComLayer.Add(tnChartNode);
for (int i = 0; i < pTUVR.ValueCount; i++)
{
string val = pTUVR.get_Value(i);
ISymbol symbol = pTUVR.get_Symbol(val);
Image img = ConvertSymbolToImage.Convert(symbol, 16, 16);
index = treeImages.Images.Add(img);
TreeNodeSymbol tnSymbol = new TreeNodeSymbol()
{
Name = pTUVR.get_Label(val), CustomValue = symbol
};
tnSymbol.ImageIndex = index;
tnComLayer.Add(tnSymbol);
}
if (pTUVR.UseDefaultSymbol)
{
ISymbol symbol = pTUVR.DefaultSymbol;
Image img = ConvertSymbolToImage.Convert(symbol, 16, 16);
index = treeImages.Images.Add(img);
TreeNodeSymbol tnSymbol = new TreeNodeSymbol()
{
Name = pTUVR.DefaultLabel, CustomValue = symbol
};
tnSymbol.ImageIndex = index;
tnComLayer.Add(tnSymbol);
}
}
else if (renderer is ITinSingleSymbolRenderer)
{
////MessageBox.Show("ITinSingleSymbolRenderer");
ITinSingleSymbolRenderer pTSSR = renderer as ITinSingleSymbolRenderer;
ISymbol symbol = pTSSR.Symbol;
Image img = ConvertSymbolToImage.Convert(symbol, 16, 16);
index = treeImages.Images.Add(img);
TreeNodeSymbol tnSymbol = new TreeNodeSymbol()
{
Name = pTSSR.Label, CustomValue = symbol
};
tnSymbol.ImageIndex = index;
tnComLayer.Add(tnSymbol);
}
else
{
//MessageBox.Show("未处理的ITinRenderer类型： " + renderer.GetType().FullName);
}
}
else
{
//MessageBox.Show("未处理的Renderer类型： " + renderer.GetType().FullName);
}
}