public void LayerRender()
{
try
{
//IFeatureLayer pFeatureLayer = featLayer;
IGeoFeatureLayer pGeoFeatureLayer = featLayer as IGeoFeatureLayer;
IFeatureClass pFeatureClass = featLayer.FeatureClass; //获取图层上的featureClass
IFeatureCursor pFeatureCursor = pFeatureClass.Search(null, false);
IUniqueValueRenderer pUniqueValueRenderer = new UniqueValueRendererClass(); //唯一值渲染器
//设置渲染字段对象
pUniqueValueRenderer.FieldCount = 1;
pUniqueValueRenderer.set_Field(0, fieldName);
ISimpleFillSymbol pSimFillSymbol = new SimpleFillSymbolClass(); //创建填充符号
pUniqueValueRenderer.DefaultSymbol = (ISymbol)pSimFillSymbol;
pUniqueValueRenderer.UseDefaultSymbol = false;
int n = pFeatureClass.FeatureCount(null);
for (int i = 0; i < n; i++)
{
IFeature pFeature = pFeatureCursor.NextFeature();
IClone pSourceClone = pSimFillSymbol as IClone;
ISimpleFillSymbol pSimpleFillSymbol = pSourceClone.Clone() as ISimpleFillSymbol;
string pFeatureValue = pFeature.get_Value(pFeature.Fields.FindField(fieldName)).ToString();
pUniqueValueRenderer.AddValue(pFeatureValue, "", (ISymbol)pSimpleFillSymbol);
}
//为每个符号设置颜色
for (int i = 0; i <= pUniqueValueRenderer.ValueCount - 1; i++)
{
string xv = pUniqueValueRenderer.get_Value(i);
if (xv != "")
{
ISimpleFillSymbol pNextSymbol = (ISimpleFillSymbol)pUniqueValueRenderer.get_Symbol(xv);
pNextSymbol.Color = colorRamp.get_Color(i * (colorRamp.Size / pUniqueValueRenderer.ValueCount));
pUniqueValueRenderer.set_Symbol(xv, (ISymbol)pNextSymbol);
if (xv.Contains("."))
{
pUniqueValueRenderer.set_Label(xv, xv.Substring(0, xv.IndexOf(".") + 4));
}
else
{
pUniqueValueRenderer.set_Label(xv, xv);
}
}
}
pGeoFeatureLayer.Renderer = (IFeatureRenderer)pUniqueValueRenderer;
axmapcontrol.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
axtoccontrol.Update();
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
public static void uniqueRender(IFeatureLayer featLayer, string fieldName)
{
IGeoFeatureLayer pGeoFeatureLayer = featLayer as IGeoFeatureLayer;
IFeatureClass pFeatureClass = featLayer.FeatureClass; //获取图层上的featureClass
IFeatureCursor pFeatureCursor = pFeatureClass.Search(null, false);
IUniqueValueRenderer pUniqueValueRenderer = new UniqueValueRendererClass(); //唯一值渲染器
//设置渲染字段对象
pUniqueValueRenderer.FieldCount = 1;
pUniqueValueRenderer.set_Field(0, fieldName);
ISimpleFillSymbol pSimFillSymbol = new SimpleFillSymbolClass(); //创建填充符号
pUniqueValueRenderer.DefaultSymbol = (ISymbol)pSimFillSymbol;
pUniqueValueRenderer.UseDefaultSymbol = false;
int n = pFeatureClass.FeatureCount(null);
for (int i = 0; i < n; i++)
{
IFeature pFeature = pFeatureCursor.NextFeature();
string pFeatureValue = pFeature.get_Value(pFeature.Fields.FindField(fieldName)).ToString();
pUniqueValueRenderer.AddValue(pFeatureValue, "", null);
}
IRandomColorRamp colorRamp = new RandomColorRampClass();
colorRamp.Size = pUniqueValueRenderer.ValueCount;
bool b = true;
colorRamp.CreateRamp(out b);
//为每个符号设置颜色
for (int i = 0; i <= pUniqueValueRenderer.ValueCount - 1; i++)
{
string xv = pUniqueValueRenderer.get_Value(i);
if (xv != "")
{
pUniqueValueRenderer.set_Symbol(xv, getISymbolByGeomType(featLayer,
colorRamp.get_Color(i * (colorRamp.Size - 1) / (pUniqueValueRenderer.ValueCount - 1))));
}
}
pGeoFeatureLayer.Renderer = (IFeatureRenderer)pUniqueValueRenderer;
}
/// <summary>
/// 按聚类号对凸包进行渲染
/// </summary>
/// <param name="pGeoFeatureLayer"></param>
/// <param name="fieldName"></param>
public void DefinePolygonUniqueValueRenderer(IGeoFeatureLayer pGeoFeatureLayer, string fieldName)
{
IRandomColorRamp pRandomColorRamp = new RandomColorRampClass();
//Create the color ramp for the symbols in the renderer.
pRandomColorRamp.MinSaturation = 20;
pRandomColorRamp.MaxSaturation = 40;
pRandomColorRamp.MinValue = 85;
pRandomColorRamp.MaxValue = 100;
pRandomColorRamp.StartHue = 76;
pRandomColorRamp.EndHue = 188;
pRandomColorRamp.UseSeed = true;
pRandomColorRamp.Seed = 43;
//Create the renderer.
IUniqueValueRenderer pUniqueValueRenderer = new UniqueValueRendererClass();
ISimpleFillSymbol pSimpleFillSymbol = new SimpleFillSymbolClass();
pSimpleFillSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
pSimpleFillSymbol.Outline.Width = 0.4;
/* ISimpleMarkerSymbol pSimpleMarkerSymbol = new SimpleMarkerSymbolClass();
* pSimpleMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSCircle;
* pSimpleMarkerSymbol.Size = 5;
* pSimpleMarkerSymbol.Outline = true;
* IRgbColor pLineRgbColor = new RgbColorClass();
* pLineRgbColor.Red = 0;
* pLineRgbColor.Green = 0;
* pLineRgbColor.Blue = 0;
* pSimpleMarkerSymbol.OutlineColor = pLineRgbColor as IColor;
*/
//These properties should be set prior to adding values.
pUniqueValueRenderer.FieldCount = 1;
pUniqueValueRenderer.set_Field(0, fieldName);
pUniqueValueRenderer.DefaultSymbol = pSimpleFillSymbol as ISymbol;
pUniqueValueRenderer.UseDefaultSymbol = true;
IDisplayTable pDisplayTable = pGeoFeatureLayer as IDisplayTable;
IFeatureCursor pFeatureCursor = pDisplayTable.SearchDisplayTable(null, false) as IFeatureCursor;
IFeature pFeature = pFeatureCursor.NextFeature();
bool ValFound;
int fieldIndex;
IFields pFields = pFeatureCursor.Fields;
fieldIndex = pFields.FindField(fieldName);
while (pFeature != null)
{
ISimpleFillSymbol pClassSymbol = new SimpleFillSymbolClass();
pClassSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
pClassSymbol.Outline.Width = 0.4;
/* ISimpleMarkerSymbol pClassSymbol = new SimpleMarkerSymbolClass();
* pClassSymbol.Style = esriSimpleMarkerStyle.esriSMSCircle;
* pClassSymbol.Size = 5;
* pClassSymbol.Outline = true;
* pClassSymbol.OutlineColor = pLineRgbColor as IColor;
*/
string classValue;
classValue = pFeature.get_Value(fieldIndex).ToString();
//Test to see if this value was added to the renderer. If not, add it.
ValFound = false;
for (int i = 0; i <= pUniqueValueRenderer.ValueCount - 1; i++)
{
if (pUniqueValueRenderer.get_Value(i) == classValue)
{
ValFound = true;
break; //Exit the loop if the value was found.
}
}
//If the value was not found, it's new and will be added.
if (ValFound == false)
{
pUniqueValueRenderer.AddValue(classValue, fieldName, pClassSymbol as ISymbol);
pUniqueValueRenderer.set_Label(classValue, classValue);
pUniqueValueRenderer.set_Symbol(classValue, pClassSymbol as ISymbol);
}
pFeature = pFeatureCursor.NextFeature();
}
//Since the number of unique values is known, the color ramp can be sized and the colors assigned.
pRandomColorRamp.Size = pUniqueValueRenderer.ValueCount;
bool bOK;
pRandomColorRamp.CreateRamp(out bOK);
IEnumColors pEnumColors = pRandomColorRamp.Colors;
pEnumColors.Reset();
for (int j = 0; j <= pUniqueValueRenderer.ValueCount - 1; j++)
{
string xv;
xv = pUniqueValueRenderer.get_Value(j);
if (xv != "")
{
ISimpleFillSymbol pSimpleFillColor = pUniqueValueRenderer.get_Symbol(xv) as ISimpleFillSymbol;
pSimpleFillColor.Color = pEnumColors.Next();
pUniqueValueRenderer.set_Symbol(xv, pSimpleFillColor as ISymbol);
}
}
pGeoFeatureLayer.Renderer = (IFeatureRenderer)pUniqueValueRenderer;
pGeoFeatureLayer.DisplayField = fieldName;
}
public static void DefineUniqueValueRenderer(IGeoFeatureLayer geoFealyr,string fieldName)
{
// Create color ramp for the symbol in rendere
IRandomColorRamp randomColorRamp = new RandomColorRampClass();
randomColorRamp.MinSaturation = 20;
randomColorRamp.MaxSaturation = 40;
randomColorRamp.MinValue = 85;
randomColorRamp.MaxValue = 100;
randomColorRamp.StartHue = 76;
randomColorRamp.EndHue = 188;
randomColorRamp.UseSeed = true;
randomColorRamp.Seed = 43;
// Create a symbol
ISimpleFillSymbol simpleFillSymbol = new SimpleFillSymbolClass();
simpleFillSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
simpleFillSymbol.Outline.Width = 0.4;
// Create the renderer
IUniqueValueRenderer uniqueValueRender = new UniqueValueRendererClass();
uniqueValueRender.FieldCount = 1;
uniqueValueRender.set_Field(0, fieldName);
uniqueValueRender.DefaultSymbol = simpleFillSymbol as ISymbol;
uniqueValueRender.UseDefaultSymbol = true;
IDisplayTable displayTable = geoFealyr as IDisplayTable;
IFeatureCursor feacursor = displayTable.SearchDisplayTable(null, false) as IFeatureCursor;
IFeature fea = feacursor.NextFeature();
bool valfound;
int fieldIndex;
IFields fields = feacursor.Fields;
fieldIndex = fields.FindField(fieldName);
while(fea!=null)
{
ISimpleFillSymbol classSymbol = new SimpleFillSymbolClass();
classSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
classSymbol.Outline.Width = 0.4;
string classValue;
classValue = fea.get_Value(fieldIndex) as string;
valfound = false;
for(int i=0;i<=uniqueValueRender.ValueCount-1;i++)
{
if(uniqueValueRender.get_Value(i)==classValue)
{
valfound = true;
break;
}
}
if(valfound==false)
{
uniqueValueRender.AddValue(classValue, fieldName, classSymbol as ISymbol);
uniqueValueRender.set_Label(classValue, classValue);
uniqueValueRender.set_Symbol(classValue, classSymbol as ISymbol);
}
fea = feacursor.NextFeature();
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(feacursor);
randomColorRamp.Size = uniqueValueRender.ValueCount;
bool bOK;
randomColorRamp.CreateRamp(out bOK);
IEnumColors enumColors = randomColorRamp.Colors;
enumColors.Reset();
for(int j=0;j<=uniqueValueRender.ValueCount-1;j++)
{
string xv;
xv = uniqueValueRender.get_Value(j);
if(xv!="")
{
ISimpleFillSymbol simplefs = uniqueValueRender.get_Symbol(xv) as ISimpleFillSymbol;
simplefs.Color = enumColors.Next();
uniqueValueRender.set_Symbol(xv, simplefs as ISymbol);
}
}
uniqueValueRender.ColorScheme = "Custome";
ITable tbl = displayTable as ITable;
bool isString = tbl.Fields.get_Field(fieldIndex).Type == esriFieldType.esriFieldTypeString;
uniqueValueRender.set_FieldType(0, isString);
geoFealyr.Renderer = uniqueValueRender as IFeatureRenderer;
IUID uid = new UIDClass();
uid.Value = "{25AE5C2F-0B57-41C6-A492-31352BAD3A37}";
geoFealyr.RendererPropertyPageClassID = uid as UIDClass;
}
/// <summary>
/// Returns Simple Renderer if no values can be found
/// </summary>
/// <param name="renderContainer"></param>
/// <returns></returns>
public static IFeatureRenderer NewUniqueValueRenderer(RendererContainer renderContainer)
{
BiPolarRendererContainer biPolarRendererContainer = renderContainer.BiPolarRendererContainer;
IUniqueValueRenderer uniqueValueRenderer = new UniqueValueRendererClass();
ISimpleFillSymbol simpleFillSymbol = new SimpleFillSymbolClass();
simpleFillSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
simpleFillSymbol.Outline.Width = 0.4;
var fieldName = biPolarRendererContainer.Field.Name;
uniqueValueRenderer.FieldCount = 1;
uniqueValueRenderer.Field[0] = fieldName;
int fieldIndex;
ISet <double> setOfFeatures = new HashSet <double>();
var containsDbNullValue = false;
using (var comReleaser = new ComReleaser())
{
var featureCursor = renderContainer.Field.Feature.FeatureClass.Search(null, true);
comReleaser.ManageLifetime(featureCursor);
fieldIndex = featureCursor.Fields.FindField(fieldName);
IFeature currentFeature;
while ((currentFeature = featureCursor.NextFeature()) != null)
{
var value = currentFeature.Value[fieldIndex];
if (Convert.IsDBNull(value))
{
containsDbNullValue = true;
continue;
}
//TODO datetime is possible???
setOfFeatures.Add(Convert.ToDouble(value));
}
}
if (containsDbNullValue && setOfFeatures.Count == 0)
{
return(NewAllMissingValuesRenderer());
}
if (setOfFeatures.Count == 0)
{
return(NewSimpleRenderer());
}
IEnumerable <double> orderedSet = setOfFeatures.OrderBy(d => d);
foreach (var currentClassValue in orderedSet)
{
ISimpleFillSymbol pClassSymbol = new SimpleFillSymbolClass();
pClassSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
pClassSymbol.Outline.Width = 0.4;
// the format is important, because the normal to string will represent the power as E-05 or something like that
// the result are mismatches between the renderer value and the column value
//string classValue = currentClassValue.ToString("N20"); does not really work
var dirtyTrick = (decimal)currentClassValue;
var classValue = dirtyTrick.ToString();
uniqueValueRenderer.AddValue(classValue, fieldName, (ISymbol)pClassSymbol);
uniqueValueRenderer.set_Label(classValue, classValue);
uniqueValueRenderer.set_Symbol(classValue, (ISymbol)pClassSymbol);
}
//figure out how many colors belong to which side from the neutral color
var size = uniqueValueRenderer.ValueCount;
var left = (int)(size * biPolarRendererContainer.NeutralColorPosition);
var right = size - left;
// for the case one or both are zero -> create color ramp crashes, the magic value seems to be 2
if (left < 2)
{
left = 2;
}
if (right < 2)
{
right = 2;
}
IAlgorithmicColorRamp firstColorRamp = new AlgorithmicColorRampClass();
firstColorRamp.FromColor = ToColor(biPolarRendererContainer.NegativColor);
firstColorRamp.ToColor = ToColor(biPolarRendererContainer.NeutralColor);
firstColorRamp.Size = left;
bool bOk;
IAlgorithmicColorRamp secondColorRamp = new AlgorithmicColorRampClass();
secondColorRamp.FromColor = ToColor(biPolarRendererContainer.NeutralColor);
secondColorRamp.ToColor = ToColor(biPolarRendererContainer.PositivColor);
secondColorRamp.Size = right;
firstColorRamp.CreateRamp(out bOk);
secondColorRamp.CreateRamp(out bOk);
var firstEnumColors = firstColorRamp.Colors;
var secondEnumColors = secondColorRamp.Colors;
firstEnumColors.Reset();
secondEnumColors.Reset();
for (var j = 0; j <= uniqueValueRenderer.ValueCount - 1; j++)
{
var label = uniqueValueRenderer.Value[j];
var pSimpleFillColor = (ISimpleFillSymbol)uniqueValueRenderer.Symbol[label];
var color = firstEnumColors.Next();
//in case the first half colors is "empty" change to the second
if (color == null)
{
firstEnumColors = secondEnumColors;
color = firstEnumColors.Next();
}
pSimpleFillColor.Color = color;
uniqueValueRenderer.set_Symbol(label, (ISymbol)pSimpleFillColor);
}
//'** If you didn'toolParameter use a predefined color ramp
//'** in a style, use "Custom" here. Otherwise,
//'** use the name of the color ramp you selected.
uniqueValueRenderer.ColorScheme = "Custom";
////ITable pTable = pDisplayTable as ITable;
bool isString = renderContainer.Field.Feature.FeatureClass.Fields.Field[fieldIndex].Type == esriFieldType.esriFieldTypeString;
//uniqueValueRenderer.FieldType[0] = isString;
uniqueValueRenderer.set_FieldType(0, isString);
//TODO geoFeatureLayer
var geoFeatureLayer = renderContainer.Field.Feature.FeatureLayer as IGeoFeatureLayer;
geoFeatureLayer.Renderer = uniqueValueRenderer as IFeatureRenderer;
return((IFeatureRenderer)uniqueValueRenderer);
}
public static void DefineUniqueValueRenderer(IGeoFeatureLayer pGeoFeatureLayer, string fieldName)
{
IRandomColorRamp pRandomColorRamp = new RandomColorRampClass();
//Create the color ramp for the symbols in the renderer.
pRandomColorRamp.MinSaturation = 20;
pRandomColorRamp.MaxSaturation = 40;
pRandomColorRamp.MinValue = 85;
pRandomColorRamp.MaxValue = 100;
pRandomColorRamp.StartHue = 76;
pRandomColorRamp.EndHue = 188;
pRandomColorRamp.UseSeed = true;
pRandomColorRamp.Seed = 43;
//Create the renderer.
IUniqueValueRenderer pUniqueValueRenderer = new UniqueValueRendererClass();
ISimpleFillSymbol pSimpleFillSymbol = new SimpleFillSymbolClass();
pSimpleFillSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
pSimpleFillSymbol.Outline.Width = 0.4;
//These properties should be set prior to adding values.
pUniqueValueRenderer.FieldCount = 1;
pUniqueValueRenderer.set_Field(0, fieldName);
pUniqueValueRenderer.DefaultSymbol = pSimpleFillSymbol as ISymbol;
pUniqueValueRenderer.UseDefaultSymbol = true;
IDisplayTable pDisplayTable = pGeoFeatureLayer as IDisplayTable;
IFeatureCursor pFeatureCursor = pDisplayTable.SearchDisplayTable(null, false) as IFeatureCursor;
IFeature pFeature = pFeatureCursor.NextFeature();
bool ValFound;
int fieldIndex;
IFields pFields = pFeatureCursor.Fields;
fieldIndex = pFields.FindField(fieldName);
while (pFeature != null)
{
ISimpleFillSymbol pClassSymbol = new SimpleFillSymbolClass();
pClassSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
pClassSymbol.Outline.Width = 0.4;
string classValue;
classValue = pFeature.get_Value(fieldIndex) as string;
//Test to see if this value was added to the renderer. If not, add it.
ValFound = false;
for (int i = 0; i <= pUniqueValueRenderer.ValueCount - 1; i++)
{
if (pUniqueValueRenderer.get_Value(i) == classValue)
{
ValFound = true;
break; //Exit the loop if the value was found.
}
}
//If the value was not found, it's new and will be added.
if (ValFound == false)
{
pUniqueValueRenderer.AddValue(classValue, fieldName, pClassSymbol as
ISymbol);
pUniqueValueRenderer.set_Label(classValue, classValue);
pUniqueValueRenderer.set_Symbol(classValue, pClassSymbol as ISymbol);
}
pFeature = pFeatureCursor.NextFeature();
}
//Since the number of unique values is known, the color ramp can be sized and the colors assigned.
pRandomColorRamp.Size = pUniqueValueRenderer.ValueCount;
bool bOK;
pRandomColorRamp.CreateRamp(out bOK);
IEnumColors pEnumColors = pRandomColorRamp.Colors;
pEnumColors.Reset();
for (int j = 0; j <= pUniqueValueRenderer.ValueCount - 1; j++)
{
string xv;
xv = pUniqueValueRenderer.get_Value(j);
if (xv != "")
{
ISimpleFillSymbol pSimpleFillColor = pUniqueValueRenderer.get_Symbol(xv)
as ISimpleFillSymbol;
pSimpleFillColor.Color = pEnumColors.Next();
pUniqueValueRenderer.set_Symbol(xv, pSimpleFillColor as ISymbol);
}
}
//'** If you didn't use a predefined color ramp in a style, use "Custom" here.
//'** Otherwise, use the name of the color ramp you selected.
pUniqueValueRenderer.ColorScheme = pRandomColorRamp.Name;//"Custom";
ITable pTable = pDisplayTable as ITable;
bool isString = pTable.Fields.get_Field(fieldIndex).Type ==
esriFieldType.esriFieldTypeString;
pUniqueValueRenderer.set_FieldType(0, isString);
pGeoFeatureLayer.Renderer = pUniqueValueRenderer as IFeatureRenderer;
//This makes the layer properties symbology tab show the correct interface.
IUID pUID = new UIDClass();
pUID.Value = "{683C994E-A17B-11D1-8816-080009EC732A}";
pGeoFeatureLayer.RendererPropertyPageClassID = pUID as UIDClass;
}
// *********************
// Author: Erika Kamptner
// Created Date: 3/10/2017
// Description: This method takes several parameters from the BuildMap method to connect to geodatabase, load layer,
// place in appropriate group layer, style, and label. Only Address points, Cadastral, Building, and Centerline layers
// have specified labels and symbology.
//
// **************************
public static void LoadCSCLFeatureClass(bool isCSCL, string strFCName, IGroupLayer pGroupLayer, string strGeodatabase)
{
//Point to map document
IMxDocument pMxDoc;
pMxDoc = (IMxDocument)ArcMap.Application.Document;
IMap pMap;
pMap = pMxDoc.FocusMap;
//Set up shapefile Workspace connection
IWorkspaceFactory pWorkspaceFactory;
pWorkspaceFactory = new ShapefileWorkspaceFactoryClass();
//If connecting to SDE, set up SDE workspace connection
//IWorkspaceFactory pWorkspaceFactory;
//pWorkspaceFactory = new SdeWorkspaceFactoryClass();
IWorkspace pWorkspace;
pWorkspace = pWorkspaceFactory.OpenFromFile(strGeodatabase, 0);
IFeatureWorkspace pFeatureWorkspace;
pFeatureWorkspace = (IFeatureWorkspace)pWorkspace;
IFeatureClass pFeatureClass;
pFeatureClass = pFeatureWorkspace.OpenFeatureClass(strFCName);
IFeatureLayer pFeatureLayer;
pFeatureLayer = new FeatureLayer();
pFeatureLayer.FeatureClass = pFeatureClass;
pFeatureLayer.Name = pFeatureClass.AliasName;
//Add layer to group if CSCL map type. Otherwise, just add layer.
if (isCSCL)
{
pGroupLayer.Add((ILayer)pFeatureLayer);
}
else
{
pMap.AddLayer((ILayer)pFeatureLayer);
}
//Symbolize Address points based if the address has subaddresses
if (pFeatureLayer.Name == "AddressPoint")
{
ILayer pLayer;
pLayer = (ILayer)pFeatureLayer;
IGeoFeatureLayer pGeoFeatureLayer;
pGeoFeatureLayer = (IGeoFeatureLayer)pLayer;
pGeoFeatureLayer.DisplayAnnotation = true;
//Create unique symbology based on subaddress flag using unique value renderer
ISimpleMarkerSymbol pAddressSymbolDefault;
pAddressSymbolDefault = new SimpleMarkerSymbolClass();
pAddressSymbolDefault.Color = SetColor(230, 0, 0);
pAddressSymbolDefault.Style = esriSimpleMarkerStyle.esriSMSCircle;
pAddressSymbolDefault.Size = 4;
IUniqueValueRenderer pUniqueValueRenderer;
pUniqueValueRenderer = new UniqueValueRendererClass();
pUniqueValueRenderer.FieldCount = 1;
pUniqueValueRenderer.set_Field(0, "SUBADDRESS");
pUniqueValueRenderer.UseDefaultSymbol = false;
//Create unique symbology for different values
ISimpleMarkerSymbol pAddressSymbolYES;
pAddressSymbolYES = new SimpleMarkerSymbolClass();
pAddressSymbolYES.Color = SetColor(230, 0, 0);
pAddressSymbolYES.Style = esriSimpleMarkerStyle.esriSMSCircle;
pAddressSymbolYES.Size = 8;
pAddressSymbolYES.OutlineSize = 2;
pAddressSymbolYES.OutlineColor = SetColor(255, 255, 0);
pAddressSymbolYES.Outline = true;
ISimpleMarkerSymbol pAddressSymbolNO;
pAddressSymbolNO = new SimpleMarkerSymbolClass();
pAddressSymbolNO.Color = SetColor(230, 0, 0);
pAddressSymbolNO.Style = esriSimpleMarkerStyle.esriSMSCircle;
pAddressSymbolNO.Size = 4;
pUniqueValueRenderer.AddValue("YES", "SUBADDRESS", pAddressSymbolYES as ISymbol);
pUniqueValueRenderer.set_Label("YES", "YES");
pUniqueValueRenderer.set_Symbol("YES", pAddressSymbolYES as ISymbol);
pUniqueValueRenderer.AddValue("NO", "SUBADDRESS", pAddressSymbolNO as ISymbol);
pUniqueValueRenderer.set_Label("NO", "NO");
pUniqueValueRenderer.set_Symbol("NO", pAddressSymbolNO as ISymbol);
//Create Label
LabelFeatures(pGeoFeatureLayer, "\"ADDRESSID: \" + [ADDRESS_ID]");
pGeoFeatureLayer.Renderer = (IFeatureRenderer)pUniqueValueRenderer;
}
else if (pFeatureLayer.Name == "Building")
{
ILayer pLayer;
pLayer = (ILayer)pFeatureLayer;
IGeoFeatureLayer pGeoFeatureLayer;
pGeoFeatureLayer = (IGeoFeatureLayer)pLayer;
pGeoFeatureLayer.DisplayField = "BIN";
pGeoFeatureLayer.DisplayAnnotation = true;
//Create ouline element
ISimpleLineSymbol pOutline;
pOutline = new SimpleLineSymbolClass();
pOutline.Color = SetColor(0, 0, 255);
pOutline.Width = 2;
//Create polygon with outline element
ISimpleFillSymbol pBuildingSymbol;
pBuildingSymbol = new SimpleFillSymbolClass();
pBuildingSymbol.Style = esriSimpleFillStyle.esriSFSHollow;
pBuildingSymbol.Outline = pOutline;
//Create Label
LabelFeatures(pGeoFeatureLayer, "\"BIN : \" + [BIN]");
//Render features
ISimpleRenderer pSimpleRenderer;
pSimpleRenderer = new SimpleRenderer();
pSimpleRenderer.Symbol = (ISymbol)pBuildingSymbol;
pGeoFeatureLayer.Renderer = (IFeatureRenderer)pSimpleRenderer;
}
else if (pFeatureLayer.Name == "StreetCenterline")
{
ILayer pLayer;
pLayer = (ILayer)pFeatureLayer;
IGeoFeatureLayer pGeoFeatureLayer;
pGeoFeatureLayer = (IGeoFeatureLayer)pLayer;
pGeoFeatureLayer.DisplayField = "ST_NAME";
pGeoFeatureLayer.DisplayAnnotation = true;
//Create arrow element to place at end of line segment
IArrowMarkerSymbol arrowMarkerSymbol = new ArrowMarkerSymbolClass();
arrowMarkerSymbol.Color = SetColor(0, 0, 0);
arrowMarkerSymbol.Size = 6;
arrowMarkerSymbol.Length = 8;
arrowMarkerSymbol.Width = 6;
arrowMarkerSymbol.XOffset = 0.8;
//Create cartographic line symbol
ICartographicLineSymbol pCartographicLineSymbol;
pCartographicLineSymbol = new CartographicLineSymbolClass();
pCartographicLineSymbol.Color = SetColor(0, 0, 0);
pCartographicLineSymbol.Width = 2;
//Place arrow at end of line
ISimpleLineDecorationElement pCenterlineDecoration;
pCenterlineDecoration = new SimpleLineDecorationElementClass();
pCenterlineDecoration.AddPosition(1);
pCenterlineDecoration.MarkerSymbol = arrowMarkerSymbol;
pCenterlineDecoration.Rotate = true;
//set line decoration
ILineDecoration pLineDecoration;
pLineDecoration = new LineDecorationClass();
pLineDecoration.AddElement(pCenterlineDecoration);
//Set line properties
ILineProperties lineProperties = (ILineProperties)pCartographicLineSymbol;
lineProperties.LineDecoration = pLineDecoration;
lineProperties.Flip = false;
//Create Label
LabelFeatures(pGeoFeatureLayer, "[L_LOW_HN] + \" - \" + [L_HIGH_HN]+ \" \" +[ST_NAME] + vbCrLf + [PHYSICALID]");
//Render features
ISimpleRenderer pSimpleRenderer;
pSimpleRenderer = new SimpleRenderer();
pSimpleRenderer.Symbol = (ISymbol)pCartographicLineSymbol;
pGeoFeatureLayer.Renderer = (IFeatureRenderer)pSimpleRenderer;
}
else if (pFeatureLayer.Name == "Cadastral")
{
ILayer pLayer;
pLayer = (ILayer)pFeatureLayer;
IGeoFeatureLayer pGeoFeatureLayer;
pGeoFeatureLayer = (IGeoFeatureLayer)pLayer;
pGeoFeatureLayer.DisplayField = "BBL";
pGeoFeatureLayer.DisplayAnnotation = true;
//Create ouline element
ISimpleLineSymbol pOutline;
pOutline = new SimpleLineSymbolClass();
pOutline.Color = SetColor(76, 230, 0);
pOutline.Width = 2;
//Create polygon with outline element
ISimpleFillSymbol pTaxLotSymbol;
pTaxLotSymbol = new SimpleFillSymbolClass();
pTaxLotSymbol.Style = esriSimpleFillStyle.esriSFSHollow;
pTaxLotSymbol.Outline = pOutline;
//Create label
LabelFeatures(pGeoFeatureLayer, "\"BBL: \" + [BBL]");
//Render features
ISimpleRenderer pSimpleRenderer;
pSimpleRenderer = new SimpleRenderer();
pSimpleRenderer.Symbol = (ISymbol)pTaxLotSymbol;
pGeoFeatureLayer.Renderer = (IFeatureRenderer)pSimpleRenderer;
}
else
{
pFeatureLayer.Visible = false;
}
}
/// <summary>
/// 按聚类号对凸包进行渲染
/// </summary>
/// <param name="pGeoFeatureLayer"></param>
/// <param name="fieldName"></param>
public void DefinePointUniqueValueRenderer(IGeoFeatureLayer pGeoFeatureLayer, string fieldName)
{
IRandomColorRamp pRandomColorRamp = new RandomColorRampClass();
//Create the color ramp for the symbols in the renderer.
pRandomColorRamp.MinSaturation = 20;
pRandomColorRamp.MaxSaturation = 40;
pRandomColorRamp.MinValue = 85;
pRandomColorRamp.MaxValue = 100;
pRandomColorRamp.StartHue = 76;
pRandomColorRamp.EndHue = 188;
pRandomColorRamp.UseSeed = true;
pRandomColorRamp.Seed = 43;
//Create the renderer.
IUniqueValueRenderer pUniqueValueRenderer = new UniqueValueRendererClass();
/* ISimpleFillSymbol pSimpleFillSymbol = new SimpleFillSymbolClass();
pSimpleFillSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
pSimpleFillSymbol.Outline.Width = 0.4;
*/
ISimpleMarkerSymbol pSimpleMarkerSymbol = new SimpleMarkerSymbolClass();
pSimpleMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSCircle;
pSimpleMarkerSymbol.Size = 5;
pSimpleMarkerSymbol.Outline = true;
IRgbColor pLineRgbColor = new RgbColorClass();
pLineRgbColor.Red = 0;
pLineRgbColor.Green = 0;
pLineRgbColor.Blue = 0;
pSimpleMarkerSymbol.OutlineColor = pLineRgbColor as IColor;
//These properties should be set prior to adding values.
pUniqueValueRenderer.FieldCount = 1;
pUniqueValueRenderer.set_Field(0, fieldName);
pUniqueValueRenderer.DefaultSymbol = pSimpleMarkerSymbol as ISymbol;
pUniqueValueRenderer.UseDefaultSymbol = true;
IDisplayTable pDisplayTable = pGeoFeatureLayer as IDisplayTable;
IFeatureCursor pFeatureCursor = pDisplayTable.SearchDisplayTable(null, false) as IFeatureCursor;
IFeature pFeature = pFeatureCursor.NextFeature();
bool ValFound;
int fieldIndex;
IFields pFields = pFeatureCursor.Fields;
fieldIndex = pFields.FindField(fieldName);
while (pFeature != null)
{
/* ISimpleFillSymbol pClassSymbol = new SimpleFillSymbolClass();
pClassSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
pClassSymbol.Outline.Width = 0.4;
*/
ISimpleMarkerSymbol pClassSymbol = new SimpleMarkerSymbolClass();
pClassSymbol.Style = esriSimpleMarkerStyle.esriSMSCircle;
pClassSymbol.Size = 5;
pClassSymbol.Outline = true;
pClassSymbol.OutlineColor = pLineRgbColor as IColor;
string classValue;
classValue = pFeature.get_Value(fieldIndex).ToString();
//Test to see if this value was added to the renderer. If not, add it.
ValFound = false;
for (int i = 0; i <= pUniqueValueRenderer.ValueCount - 1; i++)
{
if (pUniqueValueRenderer.get_Value(i) == classValue)
{
ValFound = true;
break; //Exit the loop if the value was found.
}
}
//If the value was not found, it's new and will be added.
if (ValFound == false)
{
pUniqueValueRenderer.AddValue(classValue, fieldName, pClassSymbol as ISymbol);
pUniqueValueRenderer.set_Label(classValue, classValue);
pUniqueValueRenderer.set_Symbol(classValue, pClassSymbol as ISymbol);
}
pFeature = pFeatureCursor.NextFeature();
}
//Since the number of unique values is known, the color ramp can be sized and the colors assigned.
pRandomColorRamp.Size = pUniqueValueRenderer.ValueCount;
bool bOK;
pRandomColorRamp.CreateRamp(out bOK);
IEnumColors pEnumColors = pRandomColorRamp.Colors;
pEnumColors.Reset();
for (int j = 0; j <= pUniqueValueRenderer.ValueCount - 1; j++)
{
string xv;
xv = pUniqueValueRenderer.get_Value(j);
if (xv != "")
{
ISimpleMarkerSymbol pSimpleMarkerColor = pUniqueValueRenderer.get_Symbol(xv) as ISimpleMarkerSymbol;
pSimpleMarkerColor.Color = pEnumColors.Next();
pUniqueValueRenderer.set_Symbol(xv, pSimpleMarkerColor as ISymbol);
}
}
pGeoFeatureLayer.Renderer = (IFeatureRenderer)pUniqueValueRenderer;
pGeoFeatureLayer.DisplayField = fieldName;
}