// ArcGIS Snippet Title:
// Create Simple Marker Symbol
//
// Long Description:
// Create a simple marker symbol by specifying and input color and marker style.
//
// Add the following references to the project:
// ESRI.ArcGIS.Display
// ESRI.ArcGIS.System
//
// Intended ArcGIS Products for this snippet:
// ArcGIS Desktop (Standard, Advanced, Basic)
// ArcGIS Engine
// ArcGIS Server
//
// Applicable ArcGIS Product Versions:
// 9.2
// 9.3
// 9.3.1
// 10.0
//
// Required ArcGIS Extensions:
// (NONE)
//
// Notes:
// This snippet is intended to be inserted at the base level of a Class.
// It is not intended to be nested within an existing Method.
//
///<summary>Create a simple marker symbol by specifying and input color and marker style.</summary>
///
///<param name="rgbColor">An IRGBColor interface.</param>
///<param name="inputStyle">An esriSimpleMarkerStyle enumeration. Example: esriSMSCircle.</param>
///
///<returns>An ISimpleMarkerSymbol interface.</returns>
///
///<remarks></remarks>
public ESRI.ArcGIS.Display.ISimpleMarkerSymbol CreateSimpleMarkerSymbol(ESRI.ArcGIS.Display.IRgbColor rgbColor, ESRI.ArcGIS.Display.esriSimpleMarkerStyle inputStyle)
{
ESRI.ArcGIS.Display.ISimpleMarkerSymbol simpleMarkerSymbol = new ESRI.ArcGIS.Display.SimpleMarkerSymbolClass();
simpleMarkerSymbol.Color = rgbColor;
simpleMarkerSymbol.Style = inputStyle;
return(simpleMarkerSymbol);
}
private void FormOptions_Load(object sender, EventArgs e)
{
//在窗体加载时获取当前选择环境设置的默认颜色和默认容限值
//首先获取当前选择环境对象的默认颜色
ESRI.ArcGIS.Display.IColor esriColor = currentSelectionEnvironment.DefaultColor;
//对IColor接口的对象进行接口转换，以便使用RGB颜色值
ESRI.ArcGIS.Display.IRgbColor rgbColor = esriColor as ESRI.ArcGIS.Display.IRgbColor;
//根据获取的RGB值，创建Windows颜色对象
System.Drawing.Color color = System.Drawing.Color.FromArgb(rgbColor.Red, rgbColor.Green, rgbColor.Green);
//将创建的Windows颜色对象应用于pictureBoxColor控件的背景颜色中
pictureBoxColor.BackColor = color;
//获取并显示当前选择环境的默认容限值
textBoxTolerance.Text = currentSelectionEnvironment.SearchTolerance.ToString();
}
// ArcGIS Snippet Title:
// Create Simple Line Symbol
//
// Long Description:
// Create a simple line symbol by specifying a color, width and line style.
//
// Add the following references to the project:
// ESRI.ArcGIS.Display
// ESRI.ArcGIS.System
//
// Intended ArcGIS Products for this snippet:
// ArcGIS Desktop (Standard, Advanced, Basic)
// ArcGIS Engine
// ArcGIS Server
//
// Applicable ArcGIS Product Versions:
// 9.2
// 9.3
// 9.3.1
// 10.0
//
// Required ArcGIS Extensions:
// (NONE)
//
// Notes:
// This snippet is intended to be inserted at the base level of a Class.
// It is not intended to be nested within an existing Method.
//
///<summary>Create a simple line symbol by specifying a color, width and line style.</summary>
///
///<param name="rgbColor">An IRGBColor interface.</param>
///<param name="inWidth">A System.Double that is the width of the line symbol in points. Example: 2</param>
///<param name="inStyle">An esriSimpleLineStyle enumeration. Example: esriSLSSolid.</param>
///
///<returns>An ISimpleLineSymbol interface.</returns>
///
///<remarks></remarks>
public ESRI.ArcGIS.Display.ISimpleLineSymbol CreateSimpleLineSymbol(ESRI.ArcGIS.Display.IRgbColor rgbColor, System.Double inWidth, ESRI.ArcGIS.Display.esriSimpleLineStyle inStyle)
{
if (rgbColor == null)
{
return(null);
}
ESRI.ArcGIS.Display.ISimpleLineSymbol simpleLineSymbol = new ESRI.ArcGIS.Display.SimpleLineSymbolClass();
simpleLineSymbol.Style = inStyle;
simpleLineSymbol.Color = rgbColor;
simpleLineSymbol.Width = inWidth;
return(simpleLineSymbol);
}
// ArcGIS Snippet Title:
// Create Simple Fill Symbol
//
// Long Description:
// Create a simple fill symbol by specifying a color, outline color and fill style.
//
// Add the following references to the project:
// ESRI.ArcGIS.Display
// ESRI.ArcGIS.System
//
// Intended ArcGIS Products for this snippet:
// ArcGIS Desktop (Standard, Advanced, Basic)
// ArcGIS Engine
// ArcGIS Server
//
// Applicable ArcGIS Product Versions:
// 9.2
// 9.3
// 9.3.1
// 10.0
//
// Required ArcGIS Extensions:
// (NONE)
//
// Notes:
// This snippet is intended to be inserted at the base level of a Class.
// It is not intended to be nested within an existing Method.
//
///<summary>Create a simple fill symbol by specifying a color, outline color and fill style.</summary>
///
///<param name="fillColor">An IRGBColor interface. The color for the inside of the fill symbol.</param>
///<param name="fillStyle">An esriSimpleLineStyle enumeration for the inside fill symbol. Example: esriSFSSolid.</param>
///<param name="borderColor">An IRGBColor interface. The color for the outside line border of the fill symbol.</param>
///<param name="borderStyle">An esriSimpleLineStyle enumeration for the outside line border. Example: esriSLSSolid.</param>
///<param name="borderWidth">A System.Double that is the width of the outside line border in points. Example: 2</param>
///
///<returns>An ISimpleFillSymbol interface.</returns>
///
///<remarks></remarks>
public ESRI.ArcGIS.Display.ISimpleFillSymbol CreateSimpleFillSymbol(ESRI.ArcGIS.Display.IRgbColor fillColor, ESRI.ArcGIS.Display.esriSimpleFillStyle fillStyle, ESRI.ArcGIS.Display.IRgbColor borderColor, ESRI.ArcGIS.Display.esriSimpleLineStyle borderStyle, System.Double borderWidth)
{
ESRI.ArcGIS.Display.ISimpleLineSymbol simpleLineSymbol = new ESRI.ArcGIS.Display.SimpleLineSymbolClass();
simpleLineSymbol.Width = borderWidth;
simpleLineSymbol.Color = borderColor;
simpleLineSymbol.Style = borderStyle;
ESRI.ArcGIS.Display.ISimpleFillSymbol simpleFillSymbol = new ESRI.ArcGIS.Display.SimpleFillSymbolClass();
simpleFillSymbol.Outline = simpleLineSymbol;
simpleFillSymbol.Style = fillStyle;
simpleFillSymbol.Color = fillColor;
return(simpleFillSymbol);
}
internal static void TextElementUpdate(ITextElement textElement, String content, System.Drawing.Font font, Color color)
{
//ESRI.ArcGIS.Carto.ITextElement textElement = new TextElementClass();
textElement.Text = content;
ESRI.ArcGIS.Display.IRgbColor rgbColor = ColorToRgbColor(color);
ITextSymbol textSymbol = SetUpTextSymbol(font, rgbColor);
textElement.Symbol = textSymbol;
IElement element = textElement as IElement;
//element.Geometry = point;
IGraphicsContainer graphicsContainer = g_axPageLayoutControl.PageLayout as IGraphicsContainer;
graphicsContainer.UpdateElement(element);
g_axPageLayoutControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
}
//生成颜色
public static IRgbColor CreatRgbColor(int nR, int nG, int nB, bool blTransparency)
{
ESRI.ArcGIS.Display.IRgbColor pRgbColor = null;
pRgbColor = new ESRI.ArcGIS.Display.RgbColor();
if (blTransparency == true)
{
pRgbColor.Transparency = 0;
}
else
{
pRgbColor.Red = nR;
pRgbColor.Green = nG;
pRgbColor.Blue = nB;
}
return(pRgbColor);
}
public static void TextElementAdd(IPoint point, String content, System.Drawing.Font font, Color color, ref ITextElement textElementReturn)
{
ESRI.ArcGIS.Carto.ITextElement textElement = new TextElementClass();
textElement.Text = content;
ESRI.ArcGIS.Display.IRgbColor rgbColor = ColorToRgbColor(color);
ITextSymbol textSymbol = SetUpTextSymbol(font, rgbColor);
textElement.Symbol = textSymbol;
IElement element = textElement as IElement;
element.Geometry = point;
IGraphicsContainer graphicsContainer = g_axPageLayoutControl.PageLayout as IGraphicsContainer;
graphicsContainer.AddElement(element, 0);
g_axPageLayoutControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
textElementReturn = textElement;
}
private ESRI.ArcGIS.Display.IRgbColor esriColor; //设置类变量来存储当前设置的颜色值
public FormOptions()
{
InitializeComponent();
//初始化esriColor对象
esriColor = new ESRI.ArcGIS.Display.RgbColorClass();
}
///<summary>Flash geometry on the display. The geometry type could be polygon, polyline, point, or multipoint.</summary>
///
///<param name="geometry"> An IGeometry interface</param>
///<param name="color">An IRgbColor interface</param>
///<param name="display">An IDisplay interface</param>
///<param name="delay">A System.Int32 that is the time im milliseconds to wait.</param>
///
///<remarks></remarks>
public static void FlashGeometry(ESRI.ArcGIS.Geometry.IGeometry geometry, ESRI.ArcGIS.Display.IRgbColor color, ESRI.ArcGIS.Display.IDisplay display, System.Int32 delay, IEnvelope envelope)
{
if (geometry == null || color == null || display == null)
{
return;
}
display.StartDrawing(display.hDC, (System.Int16)ESRI.ArcGIS.Display.esriScreenCache.esriNoScreenCache); // Explicit Cast
switch (geometry.GeometryType)
{
case ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolygon:
{
//Set the flash geometry's symbol.
ESRI.ArcGIS.Display.ISimpleFillSymbol simpleFillSymbol = new ESRI.ArcGIS.Display.SimpleFillSymbolClass();
simpleFillSymbol.Color = color;
ESRI.ArcGIS.Display.ISymbol symbol = simpleFillSymbol as ESRI.ArcGIS.Display.ISymbol; // Dynamic Cast
symbol.ROP2 = ESRI.ArcGIS.Display.esriRasterOpCode.esriROPNotXOrPen;
//Flash the input polygon geometry.
display.SetSymbol(symbol);
display.DrawPolygon(geometry);
System.Threading.Thread.Sleep(delay);
display.DrawPolygon(geometry);
break;
}
case ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolyline:
{
//Set the flash geometry's symbol.
ESRI.ArcGIS.Display.ISimpleLineSymbol simpleLineSymbol = new ESRI.ArcGIS.Display.SimpleLineSymbolClass();
simpleLineSymbol.Width = 4;
simpleLineSymbol.Color = color;
ESRI.ArcGIS.Display.ISymbol symbol = simpleLineSymbol as ESRI.ArcGIS.Display.ISymbol; // Dynamic Cast
symbol.ROP2 = ESRI.ArcGIS.Display.esriRasterOpCode.esriROPNotXOrPen;
//Flash the input polyline geometry.
display.SetSymbol(symbol);
display.DrawPolyline(geometry);
System.Threading.Thread.Sleep(delay);
display.DrawPolyline(geometry);
break;
}
case ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPoint:
{
//Set the flash geometry's symbol.
ESRI.ArcGIS.Display.ISimpleMarkerSymbol simpleMarkerSymbol = new ESRI.ArcGIS.Display.SimpleMarkerSymbolClass();
simpleMarkerSymbol.Style = ESRI.ArcGIS.Display.esriSimpleMarkerStyle.esriSMSCircle;
simpleMarkerSymbol.Size = 12;
simpleMarkerSymbol.Color = color;
ESRI.ArcGIS.Display.ISymbol markerSymbol = simpleMarkerSymbol as ESRI.ArcGIS.Display.ISymbol; // Dynamic Cast
markerSymbol.ROP2 = ESRI.ArcGIS.Display.esriRasterOpCode.esriROPNotXOrPen;
ESRI.ArcGIS.Display.ISimpleLineSymbol simpleLineSymbol = new ESRI.ArcGIS.Display.SimpleLineSymbolClass();
simpleLineSymbol.Width = 1;
simpleLineSymbol.Color = color;
ESRI.ArcGIS.Display.ISymbol lineSymbol = simpleLineSymbol as ESRI.ArcGIS.Display.ISymbol; // Dynamic Cast
lineSymbol.ROP2 = ESRI.ArcGIS.Display.esriRasterOpCode.esriROPNotXOrPen;
//Flash the input polygon geometry.
display.SetSymbol(markerSymbol);
display.SetSymbol(lineSymbol);
ArcMapHelpers.DrawCrossHair(geometry, display, envelope, markerSymbol, lineSymbol);
//Flash the input point geometry.
display.SetSymbol(markerSymbol);
display.DrawPoint(geometry);
System.Threading.Thread.Sleep(delay);
display.DrawPoint(geometry);
break;
}
case ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryMultipoint:
{
//Set the flash geometry's symbol.
ESRI.ArcGIS.Display.ISimpleMarkerSymbol simpleMarkerSymbol = new ESRI.ArcGIS.Display.SimpleMarkerSymbolClass();
simpleMarkerSymbol.Style = ESRI.ArcGIS.Display.esriSimpleMarkerStyle.esriSMSCircle;
simpleMarkerSymbol.Size = 12;
simpleMarkerSymbol.Color = color;
ESRI.ArcGIS.Display.ISymbol symbol = simpleMarkerSymbol as ESRI.ArcGIS.Display.ISymbol; // Dynamic Cast
symbol.ROP2 = ESRI.ArcGIS.Display.esriRasterOpCode.esriROPNotXOrPen;
//Flash the input multipoint geometry.
display.SetSymbol(symbol);
display.DrawMultipoint(geometry);
System.Threading.Thread.Sleep(delay);
display.DrawMultipoint(geometry);
break;
}
}
display.FinishDrawing();
}
public static IRasterRenderer CreateDoDClassifyRenderer(Raster gRaster, int iClassCount, double rampRange)
{
try
{
// Open file raster dataset and ensure that statistics and histograms are present (absence of histograms will cause Renderer.Update() to crash)
IRasterDataset rasterDataset = ArcMapUtilities.GetRasterDataset(gRaster);
ESRI.ArcGIS.DataSourcesRaster.IRasterBandCollection pRastBands = (ESRI.ArcGIS.DataSourcesRaster.IRasterBandCollection)rasterDataset;
ESRI.ArcGIS.DataSourcesRaster.IEnumRasterBand enumRasterBand = (ESRI.ArcGIS.DataSourcesRaster.IEnumRasterBand)pRastBands.Bands;
rasterDataset.PrecalculateStats(0);
ESRI.ArcGIS.DataSourcesRaster.IRasterBand pRastBand = enumRasterBand.Next();
pRastBand.ComputeStatsAndHist();
IRasterClassifyColorRampRenderer classifyRenderer = new RasterClassifyColorRampRendererClass();
IRasterRenderer rasterRenderer = (IRasterRenderer)classifyRenderer;
IFillSymbol fillSymbol = new SimpleFillSymbolClass();
IRaster raster = rasterDataset.CreateDefaultRaster();
double rMin = -2.5;
double rMax = 2.5;
if (rampRange == 0)
{
gRaster.ComputeStatistics();
Dictionary <string, decimal> rasterStats = gRaster.GetStatistics();
rMin = (double)rasterStats["min"];
rMax = (double)rasterStats["max"];
}
else
{
rMin = rampRange * -1;
rMax = rampRange;
}
rasterRenderer.Raster = raster;
if ((rMin == double.MinValue & rMax == double.MaxValue) | (rMin == double.MaxValue & rMax == double.MinValue) | (rMin == float.MinValue & rMax == float.MaxValue) | (rMin == float.MaxValue & rMax == float.MinValue))
{
classifyRenderer.ClassCount = 1;
ESRI.ArcGIS.Display.IRgbColor rgbColor = CreateRGBColor(255, 255, 255);
rgbColor.Transparency = 0;
fillSymbol.Color = rgbColor;
classifyRenderer.Symbol[0] = (ISymbol)fillSymbol;
classifyRenderer.Label[0] = "No Data (no change detected)";
return(rasterRenderer);
}
classifyRenderer.ClassCount = iClassCount;
rasterRenderer.Update();
CreateDoDClassBreaks(rMax, rMin, iClassCount, ref classifyRenderer);
List <IColor> lColors = CreateDoDColorRamp();
for (int i = 0; i < classifyRenderer.ClassCount; i++)
{
fillSymbol.Color = lColors[i];
classifyRenderer.Symbol[i] = (ISymbol)fillSymbol;
}
return(rasterRenderer);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
return(null);
}
}
public void AddGraphicToMap(ESRI.ArcGIS.Carto.IMap map, ESRI.ArcGIS.Geometry.IGeometry geometry, ESRI.ArcGIS.Display.IRgbColor rgbColor, ESRI.ArcGIS.Display.IRgbColor outlineRgbColor)
{
ESRI.ArcGIS.Carto.IGraphicsContainer graphicsContainer = (ESRI.ArcGIS.Carto.IGraphicsContainer)map; // Explicit Cast
ESRI.ArcGIS.Carto.IElement element = null;
if ((geometry.GeometryType) == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPoint)
{
// Marker symbols
ESRI.ArcGIS.Display.ISimpleMarkerSymbol simpleMarkerSymbol = new ESRI.ArcGIS.Display.SimpleMarkerSymbol();
simpleMarkerSymbol.Color = rgbColor;
simpleMarkerSymbol.Outline = true;
simpleMarkerSymbol.OutlineColor = outlineRgbColor;
simpleMarkerSymbol.Size = frmOptions.sizeOfPoints;
simpleMarkerSymbol.Style = ESRI.ArcGIS.Display.esriSimpleMarkerStyle.esriSMSCircle;
ESRI.ArcGIS.Carto.IMarkerElement markerElement = (IMarkerElement) new ESRI.ArcGIS.Carto.MarkerElement();
markerElement.Symbol = simpleMarkerSymbol;
element = (ESRI.ArcGIS.Carto.IElement)markerElement; // Explicit Cast
}
else if ((geometry.GeometryType) == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolyline)
{
// Line elements
ESRI.ArcGIS.Display.ISimpleLineSymbol simpleLineSymbol = new ESRI.ArcGIS.Display.SimpleLineSymbol();
simpleLineSymbol.Color = rgbColor;
simpleLineSymbol.Style = ESRI.ArcGIS.Display.esriSimpleLineStyle.esriSLSSolid;
simpleLineSymbol.Width = frmOptions.sizeOfLines;
ESRI.ArcGIS.Carto.ILineElement lineElement = (ILineElement) new ESRI.ArcGIS.Carto.LineElement();
lineElement.Symbol = simpleLineSymbol;
element = (ESRI.ArcGIS.Carto.IElement)lineElement; // Explicit Cast
}
else if ((geometry.GeometryType) == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolygon)
{
// Polygon elements
ESRI.ArcGIS.Display.ISimpleFillSymbol simpleFillSymbol = new ESRI.ArcGIS.Display.SimpleFillSymbol();
simpleFillSymbol.Color = rgbColor;
simpleFillSymbol.Style = ESRI.ArcGIS.Display.esriSimpleFillStyle.esriSFSForwardDiagonal;
ESRI.ArcGIS.Carto.IFillShapeElement fillShapeElement = (IFillShapeElement) new ESRI.ArcGIS.Carto.PolygonElement();
fillShapeElement.Symbol = simpleFillSymbol;
element = (ESRI.ArcGIS.Carto.IElement)fillShapeElement; // Explicit Cast
}
if (!(element == null))
{
element.Geometry = geometry;
graphicsContainer.AddElement(element, 0);
}
}
///<summary>在地图上绘制指定颜色的图形</summary>
///<param name="scene">地图</param>
///<param name="geometry">feature 的shape</param>
///<param name="rgbColor">颜色</param>
///<param name="outlineRgbColor">边框颜色</param>
///<param name="OffsetZs">Z偏值</param>
///
///<remarks>Calling this function will not automatically make the graphics appear in the map area. Refresh the map area after after calling this function with Methods like IActiveView.Refresh or IActiveView.PartialRefresh.</remarks>
internal static IElement AddGraphicToScene(IScene scene, ESRI.ArcGIS.Geometry.IGeometry geometry, ESRI.ArcGIS.Display.IRgbColor rgbColor, ESRI.ArcGIS.Display.IRgbColor outlineRgbColor, double OffsetZs)
{
//ESRI.ArcGIS.Carto.IGraphicsContainer graphicsContainer = (ESRI.ArcGIS.Carto.IGraphicsContainer)map; //IGraphicsContainer接口能删除
IGraphicsContainer3D graphicsContainer3D = (IGraphicsContainer3D)scene.BasicGraphicsLayer;
ESRI.ArcGIS.Carto.IElement element = null;
if ((geometry.GeometryType) == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPoint)
{
IPoint point = (Point)geometry;
try
{
double X = point.X;
double Y = point.Y;
}
catch
{
return(null);
}
point = GeometryUtilities.ConstructPoint3D(point, OffsetZs);
// Marker symbols
ESRI.ArcGIS.Display.ISimpleMarkerSymbol simpleMarkerSymbol = new ESRI.ArcGIS.Display.SimpleMarkerSymbolClass();
simpleMarkerSymbol.Color = rgbColor;
simpleMarkerSymbol.Outline = true;
simpleMarkerSymbol.OutlineColor = rgbColor;
simpleMarkerSymbol.Size = 12;
simpleMarkerSymbol.Style = ESRI.ArcGIS.Display.esriSimpleMarkerStyle.esriSMSCircle;
ESRI.ArcGIS.Carto.IMarkerElement markerElement = new ESRI.ArcGIS.Carto.MarkerElementClass();
markerElement.Symbol = simpleMarkerSymbol;
element = (ESRI.ArcGIS.Carto.IElement)markerElement; // Explicit Cast
if (!(element == null))
{
element.Geometry = point;
graphicsContainer3D.AddElement(element);
}
}
else if ((geometry.GeometryType) == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolyline)
{
// Marker symbols
ESRI.ArcGIS.Display.ISimpleLineSymbol simpleLineSymbol = new ESRI.ArcGIS.Display.SimpleLineSymbolClass();
simpleLineSymbol.Color = rgbColor;
simpleLineSymbol.Style = ESRI.ArcGIS.Display.esriSimpleLineStyle.esriSLSSolid;
simpleLineSymbol.Width = 1;
ESRI.ArcGIS.Carto.ILineElement lineElement = new ESRI.ArcGIS.Carto.LineElementClass();
lineElement.Symbol = simpleLineSymbol;
element = (ESRI.ArcGIS.Carto.IElement)lineElement; // Explicit Cast
if (!(element == null))
{
element.Geometry = geometry;
graphicsContainer3D.AddElement(element);
}
}
else if ((geometry.GeometryType) == ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolygon)
{
IZ iz = (IZ)geometry;
iz.OffsetZs(OffsetZs);//z值向上偏移
// Polygon elements
ESRI.ArcGIS.Display.ISimpleFillSymbol simpleFillSymbol = new ESRI.ArcGIS.Display.SimpleFillSymbolClass();
simpleFillSymbol.Color = rgbColor;
simpleFillSymbol.Style = ESRI.ArcGIS.Display.esriSimpleFillStyle.esriSFSForwardDiagonal;
ESRI.ArcGIS.Carto.IFillShapeElement fillShapeElement = new ESRI.ArcGIS.Carto.PolygonElementClass();
fillShapeElement.Symbol = simpleFillSymbol;
element = (ESRI.ArcGIS.Carto.IElement)fillShapeElement; // Explicit Cast
if (!(element == null))
{
element.Geometry = geometry;
graphicsContainer3D.AddElement(element);
}
}
return(element);
}
/// <summary>
/// 在地图上绘制指定颜色的文字
/// </summary>
/// <param name="scene"></param>
/// <param name="geometry"></param>
/// <param name="OffsetZs"></param>
/// <param name="rgbColor"></param>
/// <param name="text"></param>
/// <param name="fontSize"></param>
/// <returns></returns>
internal static IElement AddTextGraphicToScene(IScene scene, ESRI.ArcGIS.Geometry.IGeometry geometry, double OffsetZs, ESRI.ArcGIS.Display.IRgbColor rgbColor, string text, int fontSize)
{
IGraphicsContainer3D graphicsContainer3D = (IGraphicsContainer3D)scene.BasicGraphicsLayer;
IText3DElement pTextElement = new Text3DElementClass();
IFillShapeElement pFillShapeElement = new Text3DElementClass();
pTextElement.Text = text;
IFillSymbol pFillSymbol = new SimpleFillSymbol();
pFillSymbol.Color = rgbColor;//填充的颜色
IPoint point;
try
{
IArea3D Area3D = (IArea3D)geometry;
point = Area3D.Centroid3D;
}
catch
{
point = (IPoint)geometry;
GeometryUtilities.MakeZAware(point);
}
point.Z = point.Z + OffsetZs;
pTextElement.AnchorPoint = point; //添加文本的坐标点
pTextElement.Justification = esriT3DJustification.esriT3DJustifyCenter; //注记排放方式
pTextElement.OrientationPlane = esriT3DOrientationPlane.esriT3DPlaneXY; //注记的旋转平面
pTextElement.AxisRotation = esriT3DRotationAxis.esriT3DRotateAxisZ; //注记旋转轴
//pTextElement.RotationAngle=....;//注记的旋转角度
pTextElement.ZAxisScale = 1;
pTextElement.Depth = 0.6; //文本的深度
pTextElement.Height = fontSize; //文本的高度,即文字大小
pTextElement.Update();
pFillShapeElement = (IFillShapeElement)pTextElement;
pFillShapeElement.Symbol = pFillSymbol;
graphicsContainer3D.AddElement(pTextElement as IElement);
return(pTextElement as IElement);
}
