//GradientFillSymbol
private void button15_Click(object sender, EventArgs e)
{
IGradientFillSymbol gradientFillSymbol = new GradientFillSymbolClass();
IAlgorithmicColorRamp algorithcColorRamp = new AlgorithmicColorRampClass();
algorithcColorRamp.FromColor = getRGB(255, 0, 0);
algorithcColorRamp.ToColor = getRGB(0, 255, 0);
algorithcColorRamp.Algorithm = esriColorRampAlgorithm.esriHSVAlgorithm;
gradientFillSymbol.ColorRamp = algorithcColorRamp;
gradientFillSymbol.GradientAngle = 45;
gradientFillSymbol.GradientPercentage = 0.9;
gradientFillSymbol.Style = esriGradientFillStyle.esriGFSLinear;
object Missing = Type.Missing;
IPolygon polygon = new PolygonClass();
IPointCollection pointCollection = polygon as IPointCollection;
IPoint point = new PointClass();
point.PutCoords(5, 5);
pointCollection.AddPoint(point, ref Missing, ref Missing);
point.PutCoords(5, 10);
pointCollection.AddPoint(point, ref Missing, ref Missing);
point.PutCoords(10, 10);
pointCollection.AddPoint(point, ref Missing, ref Missing);
point.PutCoords(10, 5);
pointCollection.AddPoint(point, ref Missing, ref Missing);
polygon.SimplifyPreserveFromTo();
IActiveView activeView = this.axMapControl1.ActiveView;
activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, (short)esriScreenCache.esriNoScreenCache);
activeView.ScreenDisplay.SetSymbol(gradientFillSymbol as ISymbol);
activeView.ScreenDisplay.DrawPolygon(polygon as IGeometry);
activeView.ScreenDisplay.FinishDrawing();
}
//MultilayerFillSymbol
private void button17_Click(object sender, EventArgs e)
{
IMultiLayerFillSymbol multiLayerFillSymbol = new MultiLayerFillSymbolClass();
IGradientFillSymbol gradientFillSymbol = new GradientFillSymbolClass();
IAlgorithmicColorRamp algorithcColorRamp = new AlgorithmicColorRampClass();
algorithcColorRamp.FromColor = getRGB(255, 0, 0);
algorithcColorRamp.ToColor = getRGB(0, 255, 0);
algorithcColorRamp.Algorithm = esriColorRampAlgorithm.esriHSVAlgorithm;
gradientFillSymbol.ColorRamp = algorithcColorRamp;
gradientFillSymbol.GradientAngle = 45;
gradientFillSymbol.GradientPercentage = 0.9;
gradientFillSymbol.Style = esriGradientFillStyle.esriGFSLinear;
ICartographicLineSymbol cartoLine = new CartographicLineSymbol();
cartoLine.Cap = esriLineCapStyle.esriLCSButt;
cartoLine.Join = esriLineJoinStyle.esriLJSMitre;
cartoLine.Color = getRGB(255, 0, 0);
cartoLine.Width = 2;
//Create the LineFillSymbo
ILineFillSymbol lineFill = new LineFillSymbol();
lineFill.Angle = 45;
lineFill.Separation = 10;
lineFill.Offset = 5;
lineFill.LineSymbol = cartoLine;
multiLayerFillSymbol.AddLayer(gradientFillSymbol);
multiLayerFillSymbol.AddLayer(lineFill);
object Missing = Type.Missing;
IPolygon polygon = new PolygonClass();
IPointCollection pointCollection = polygon as IPointCollection;
IPoint point = new PointClass();
point.PutCoords(5, 5);
pointCollection.AddPoint(point, ref Missing, ref Missing);
point.PutCoords(5, 10);
pointCollection.AddPoint(point, ref Missing, ref Missing);
point.PutCoords(10, 10);
pointCollection.AddPoint(point, ref Missing, ref Missing);
point.PutCoords(10, 5);
pointCollection.AddPoint(point, ref Missing, ref Missing);
polygon.SimplifyPreserveFromTo();
IActiveView activeView = this.axMapControl1.ActiveView;
activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, (short)esriScreenCache.esriNoScreenCache);
activeView.ScreenDisplay.SetSymbol(multiLayerFillSymbol as ISymbol);
activeView.ScreenDisplay.DrawPolygon(polygon as IGeometry);
activeView.ScreenDisplay.FinishDrawing();
}
/// <summary>
/// 创建高级渐变符号
/// </summary>
/// <returns>正常：返回符号；异常：null</returns>
public IGradientFillSymbol CreateAdvancedSymbol()
{
try
{
//为填充符号创建外框线符号
IColor pLineColor = new RgbColorClass();
pLineColor.RGB = 220;
IGradientFillSymbol pGradientFillSymbol = new GradientFillSymbolClass();
pGradientFillSymbol.IntervalCount = 1;
pGradientFillSymbol.Color = pLineColor;
//创建一个填充符号
//ISimpleFillSymbol pSmplFillSymbol = new SimpleFillSymbol();
//设置填充符号的属性
// IColor pRgbClr = new RgbColorClass();
//IFillSymbol pFillSymbol = pSmplFillSymbol;
//pFillSymbol.Color = pRgbClr;
//pFillSymbol.Outline = pGradientFillSymbol;
return(pGradientFillSymbol);
}
catch (Exception)
{
return(null);
}
}
protected void DrawSymbol(int int_3, System.Drawing.Rectangle rectangle_0, object object_0)
{
if (object_0 != null)
{
IDisplayTransformation displayTransformation = new DisplayTransformationClass();
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords((double)rectangle_0.Left, (double)rectangle_0.Top, (double)rectangle_0.Right,
(double)rectangle_0.Bottom);
tagRECT tagRECT;
tagRECT.left = rectangle_0.Left;
tagRECT.right = rectangle_0.Right;
tagRECT.bottom = rectangle_0.Bottom;
tagRECT.top = rectangle_0.Top;
displayTransformation.set_DeviceFrame(ref tagRECT);
displayTransformation.Bounds = envelope;
displayTransformation.Resolution = 96.0;
displayTransformation.ReferenceScale = 1.0;
displayTransformation.ScaleRatio = 1.0;
ISymbol symbol;
if (object_0 is ISymbol)
{
symbol = (ISymbol)object_0;
}
else if (object_0 is IColorRamp)
{
IGradientFillSymbol gradientFillSymbol = new GradientFillSymbolClass();
ILineSymbol outline = gradientFillSymbol.Outline;
outline.Width = 0.0;
gradientFillSymbol.Outline = outline;
gradientFillSymbol.ColorRamp = (IColorRamp)object_0;
gradientFillSymbol.GradientAngle = 180.0;
gradientFillSymbol.GradientPercentage = 1.0;
gradientFillSymbol.IntervalCount = 100;
gradientFillSymbol.Style = esriGradientFillStyle.esriGFSLinear;
symbol = (ISymbol)gradientFillSymbol;
}
else if (object_0 is IColor)
{
symbol = (ISymbol) new ColorSymbolClass
{
Color = (IColor)object_0
};
}
else if (object_0 is IAreaPatch)
{
symbol = new SimpleFillSymbolClass();
IRgbColor rgbColor = new RgbColorClass();
rgbColor.Red = 227;
rgbColor.Green = 236;
rgbColor.Blue = 19;
((IFillSymbol)symbol).Color = rgbColor;
}
else if (object_0 is ILinePatch)
{
symbol = new SimpleLineSymbolClass();
}
else
{
if (object_0 is INorthArrow)
{
IDisplay display = new ScreenDisplayClass();
display.StartDrawing(int_3, 0);
display.DisplayTransformation = displayTransformation;
((IMapSurround)object_0).Draw(display, null, envelope);
display.FinishDrawing();
((IMapSurround)object_0).Refresh();
return;
}
if (object_0 is IMapSurround)
{
IDisplay display = new ScreenDisplayClass();
display.StartDrawing(int_3, 0);
display.DisplayTransformation = displayTransformation;
IEnvelope envelope2 = new EnvelopeClass();
envelope2.PutCoords((double)(rectangle_0.Left + 5), (double)(rectangle_0.Top + 5),
(double)(rectangle_0.Right - 5), (double)(rectangle_0.Bottom - 5));
((IMapSurround)object_0).QueryBounds(display, envelope, envelope2);
bool flag;
((IMapSurround)object_0).FitToBounds(display, envelope2, out flag);
((IMapSurround)object_0).Draw(display, null, envelope2);
display.FinishDrawing();
((IMapSurround)object_0).Refresh();
return;
}
if (object_0 is IBackground)
{
IDisplay display = new ScreenDisplayClass();
display.StartDrawing(int_3, 0);
display.DisplayTransformation = displayTransformation;
IGeometry geometry = ((IBackground)object_0).GetGeometry(display, envelope);
((IBackground)object_0).Draw(display, geometry);
display.FinishDrawing();
return;
}
if (object_0 is IShadow)
{
IDisplay display = new ScreenDisplayClass();
display.StartDrawing(int_3, 0);
display.DisplayTransformation = displayTransformation;
double horizontalSpacing = ((IShadow)object_0).HorizontalSpacing;
double verticalSpacing = ((IShadow)object_0).VerticalSpacing;
((IShadow)object_0).HorizontalSpacing = 0.0;
((IShadow)object_0).VerticalSpacing = 0.0;
IGeometry geometry = ((IShadow)object_0).GetGeometry(display, envelope);
((IShadow)object_0).Draw(display, geometry);
((IShadow)object_0).HorizontalSpacing = horizontalSpacing;
((IShadow)object_0).VerticalSpacing = verticalSpacing;
display.FinishDrawing();
return;
}
if (object_0 is IBorder)
{
IDisplay display = new ScreenDisplayClass();
display.StartDrawing(int_3, 0);
display.DisplayTransformation = displayTransformation;
IPointCollection pointCollection = new PolylineClass();
object value = System.Reflection.Missing.Value;
IPoint point = new PointClass();
point.PutCoords((double)(rectangle_0.X + 4), (double)rectangle_0.Top);
pointCollection.AddPoint(point, ref value, ref value);
point.PutCoords((double)(rectangle_0.X + 4), (double)rectangle_0.Bottom);
pointCollection.AddPoint(point, ref value, ref value);
point.PutCoords((double)(rectangle_0.Right - 4), (double)rectangle_0.Bottom);
pointCollection.AddPoint(point, ref value, ref value);
IGeometry geometry = ((IBorder)object_0).GetGeometry(display, (IGeometry)pointCollection);
((IBorder)object_0).Draw(display, geometry);
display.FinishDrawing();
return;
}
return;
}
if (symbol is IPictureFillSymbol || symbol is IPictureLineSymbol)
{
symbol.SetupDC(int_3, null);
}
else
{
symbol.SetupDC(int_3, displayTransformation);
}
if (object_0 is IPatch)
{
this.method_3(symbol, (IPatch)object_0, rectangle_0);
}
else if (symbol is IMarkerSymbol)
{
this.method_2((IMarkerSymbol)symbol, rectangle_0);
}
else if (symbol is ILineSymbol)
{
this.method_4((ILineSymbol)symbol, rectangle_0);
}
else if (symbol is IFillSymbol)
{
this.method_5((IFillSymbol)symbol, rectangle_0);
}
else if (symbol is ITextSymbol)
{
this.method_7((ITextSymbol)symbol, rectangle_0);
}
symbol.ResetDC();
}
}
protected void DrawSymbol(int int_3, Rectangle rectangle_0, object object_0)
{
if (object_0 != null)
{
tagRECT grect;
ISymbol symbol;
IDisplayTransformation transformation = new DisplayTransformationClass();
IEnvelope bounds = new EnvelopeClass();
bounds.PutCoords((double)rectangle_0.Left, (double)rectangle_0.Top, (double)rectangle_0.Right,
(double)rectangle_0.Bottom);
grect.left = rectangle_0.Left;
grect.right = rectangle_0.Right;
grect.bottom = rectangle_0.Bottom;
grect.top = rectangle_0.Top;
transformation.set_DeviceFrame(ref grect);
transformation.Bounds = bounds;
transformation.Resolution = 96.0;
transformation.ReferenceScale = 1.0;
transformation.ScaleRatio = 1.0;
if (object_0 is ISymbol)
{
symbol = object_0 as ISymbol;
}
else if (object_0 is IColorRamp)
{
IGradientFillSymbol symbol2 = new GradientFillSymbolClass();
ILineSymbol outline = symbol2.Outline;
outline.Width = 0.0;
symbol2.Outline = outline;
symbol2.ColorRamp = object_0 as IColorRamp;
symbol2.GradientAngle = 180.0;
symbol2.GradientPercentage = 1.0;
symbol2.IntervalCount = 100;
symbol2.Style = esriGradientFillStyle.esriGFSLinear;
symbol = (ISymbol)symbol2;
}
else if (object_0 is IColor)
{
IColorSymbol symbol4 = new ColorSymbolClass
{
Color = object_0 as IColor
};
symbol = (ISymbol)symbol4;
}
else if (object_0 is IAreaPatch)
{
symbol = new SimpleFillSymbolClass();
IRgbColor color = new RgbColorClass
{
Red = 227,
Green = 236,
Blue = 19
};
((IFillSymbol)symbol).Color = color;
}
else
{
if (!(object_0 is ILinePatch))
{
IDisplay display;
if (object_0 is INorthArrow)
{
display = new ScreenDisplayClass();
display.StartDrawing(int_3, 0);
display.DisplayTransformation = transformation;
((IMapSurround)object_0).Draw(display, null, bounds);
display.FinishDrawing();
((IMapSurround)object_0).Refresh();
}
else if (object_0 is IMapSurround)
{
bool flag;
display = new ScreenDisplayClass();
display.StartDrawing(int_3, 0);
display.DisplayTransformation = transformation;
IEnvelope newBounds = new EnvelopeClass();
newBounds.PutCoords((double)(rectangle_0.Left + 5), (double)(rectangle_0.Top + 5),
(double)(rectangle_0.Right - 5), (double)(rectangle_0.Bottom - 5));
((IMapSurround)object_0).QueryBounds(display, bounds, newBounds);
((IMapSurround)object_0).FitToBounds(display, newBounds, out flag);
((IMapSurround)object_0).Draw(display, null, newBounds);
display.FinishDrawing();
((IMapSurround)object_0).Refresh();
}
else
{
IGeometry geometry;
if (object_0 is IBackground)
{
display = new ScreenDisplayClass();
display.StartDrawing(int_3, 0);
display.DisplayTransformation = transformation;
geometry = ((IBackground)object_0).GetGeometry(display, bounds);
((IBackground)object_0).Draw(display, geometry);
display.FinishDrawing();
}
else if (object_0 is IShadow)
{
display = new ScreenDisplayClass();
display.StartDrawing(int_3, 0);
display.DisplayTransformation = transformation;
double horizontalSpacing = ((IShadow)object_0).HorizontalSpacing;
double verticalSpacing = ((IShadow)object_0).VerticalSpacing;
((IShadow)object_0).HorizontalSpacing = 0.0;
((IShadow)object_0).VerticalSpacing = 0.0;
geometry = ((IShadow)object_0).GetGeometry(display, bounds);
((IShadow)object_0).Draw(display, geometry);
((IShadow)object_0).HorizontalSpacing = horizontalSpacing;
((IShadow)object_0).VerticalSpacing = verticalSpacing;
display.FinishDrawing();
}
else if (object_0 is IBorder)
{
display = new ScreenDisplayClass();
display.StartDrawing(int_3, 0);
display.DisplayTransformation = transformation;
IPointCollection points = new PolylineClass();
object before = Missing.Value;
IPoint inPoint = new PointClass();
inPoint.PutCoords((double)(rectangle_0.X + 4), (double)rectangle_0.Top);
points.AddPoint(inPoint, ref before, ref before);
inPoint.PutCoords((double)(rectangle_0.X + 4), (double)rectangle_0.Bottom);
points.AddPoint(inPoint, ref before, ref before);
inPoint.PutCoords((double)(rectangle_0.Right - 4), (double)rectangle_0.Bottom);
points.AddPoint(inPoint, ref before, ref before);
geometry = ((IBorder)object_0).GetGeometry(display, (IGeometry)points);
((IBorder)object_0).Draw(display, geometry);
display.FinishDrawing();
}
}
return;
}
symbol = new SimpleLineSymbolClass();
}
if ((symbol is IPictureFillSymbol) || (symbol is IPictureLineSymbol))
{
symbol.SetupDC(int_3, null);
}
else
{
symbol.SetupDC(int_3, transformation);
}
if (object_0 is IPatch)
{
this.method_3(symbol, (IPatch)object_0, rectangle_0);
}
else if (symbol is IMarkerSymbol)
{
this.method_2((IMarkerSymbol)symbol, rectangle_0);
}
else if (symbol is ILineSymbol)
{
this.method_4((ILineSymbol)symbol, rectangle_0);
}
else if (symbol is IFillSymbol)
{
this.method_5((IFillSymbol)symbol, rectangle_0);
}
else if (symbol is ITextSymbol)
{
this.method_7((ITextSymbol)symbol, rectangle_0);
}
symbol.ResetDC();
}
}