private ITransformation CreateTransFromDC(int hDC, int lWidth, int lHeight)
{
// Calculate the parameters for the new transformation, based on the dimensions passed to this function.
IEnvelope pBoundsEnvelope = new EnvelopeClass();
pBoundsEnvelope.PutCoords(0, 0, lWidth, lHeight);
tagRECT deviceRect;
deviceRect.left = 0;
deviceRect.top = 0;
deviceRect.right = lWidth;
deviceRect.bottom = lHeight;
//int dpi;
//dpi = GetDeviceCaps(hDC, LOGPIXELSY);
//if (dpi == 0) return null;
// Create a new display transformation and set its properties.
IDisplayTransformation pDisplayTransformation = new DisplayTransformationClass();
pDisplayTransformation.VisibleBounds = pBoundsEnvelope;
pDisplayTransformation.Bounds = pBoundsEnvelope;
pDisplayTransformation.set_DeviceFrame(ref deviceRect);
pDisplayTransformation.Resolution = 300;
return(pDisplayTransformation);
}
protected void DrawSymbol(int int_0, Rectangle rectangle_0, object object_0)
{
tagRECT grect;
IDisplayTransformation transformation = new DisplayTransformationClass();
IEnvelope envelope = new EnvelopeClass();
envelope.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 = envelope;
ISymbol symbol = object_0 as ISymbol;
if (symbol != null)
{
symbol.SetupDC(int_0, transformation);
if (symbol is IMarkerSymbol)
{
this.method_3((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);
}
symbol.ResetDC();
}
}
/// <summary>
/// 实现将Symbol转换为Bitmap
/// </summary>
/// <param name="Symbol">符号对象</param>
/// <param name="Width">宽度值</param>
/// <param name="Height">高度值</param>
/// <returns>图像对象</returns>
public static Bitmap PreviewItem(ISymbol Symbol, int Width, int Height)
{
Bitmap bitmap = new Bitmap(Width, Height);
Graphics mGraphics = Graphics.FromImage(bitmap);
double dpi = mGraphics.DpiY;
IEnvelope pEnvelope = new EnvelopeClass();
pEnvelope.PutCoords(0, 0, bitmap.Width, bitmap.Height);
tagRECT myRect = new tagRECT();
myRect.bottom = bitmap.Height;
myRect.left = 0;
myRect.right = bitmap.Width;
myRect.top = 0;
IDisplayTransformation pDisplayTransformation = new DisplayTransformationClass();
pDisplayTransformation.VisibleBounds = pEnvelope;
pDisplayTransformation.Bounds = pEnvelope;
pDisplayTransformation.set_DeviceFrame(ref myRect);
pDisplayTransformation.Resolution = dpi;
IntPtr pIntPtr = mGraphics.GetHdc();
int hDC = pIntPtr.ToInt32();
Symbol.SetupDC(hDC, pDisplayTransformation);
IGeometry pGeometry = GetSymbolGeometry(Symbol, pEnvelope);
Symbol.Draw(pGeometry);
Symbol.ResetDC();
mGraphics.ReleaseHdc(pIntPtr);
mGraphics.Dispose();
return(bitmap);
}
//设备句柄仿射变换
private static ITransformation CreateTransformationFromHDC(IntPtr HDC, int width, int height)
{
IEnvelope env = new EnvelopeClass();
env.PutCoords(0, 0, width, height);
//目标矩形的大小
tagRECT frame = new tagRECT();
frame.left = 0;
frame.top = 0;
frame.right = width;
frame.bottom = height;
double dpi = Graphics.FromHdc(HDC).DpiY;//设备句柄的垂直分辨率
long lDpi = (long)dpi;
if (lDpi == 0)
{
//XtraMessageBox.Show("获取设备比例尺失败!");
return(null);
}
IDisplayTransformation dispTrans = new DisplayTransformationClass();
dispTrans.Bounds = env;
dispTrans.VisibleBounds = env;
dispTrans.set_DeviceFrame(ref frame);
dispTrans.Resolution = dpi;
return(dispTrans);
}
public unsafe ITransformation CreateTransFromDC(int iWidth, int iHeight, long lDpi)
{
try
{
if (iWidth == 0)
{
return(null);
}
if (iHeight == 0)
{
return(null);
}
if (lDpi == 0L)
{
return(null);
}
IEnvelope envelope = null;
envelope = new EnvelopeClass();
envelope.PutCoords(0.0, 0.0, (double)iWidth, (double)iHeight);
tagRECT grect = new tagRECT();
IDisplayTransformation transformation = null;
transformation = new DisplayTransformationClass();
IDisplayTransformation transformation2 = transformation;
transformation2.VisibleBounds = envelope;
transformation2.Bounds = envelope;
transformation2.set_DeviceFrame(ref grect);
transformation2.Resolution = lDpi;
return(transformation);
}
catch (Exception exception)
{
this.mErrOpt.ErrorOperate(this.mSubSysName, "FunFactory.SymbolFun", "CreateTransFromDC", exception.GetHashCode().ToString(), exception.Source, exception.Message, "", "", "");
return(null);
}
}
private static ITransformation CreateTransFromDC(int hDC, double dblWidth, double dblHeight)
{
IEnvelope pBoundsEnvelope = new EnvelopeClass();
pBoundsEnvelope.PutCoords(0, 0, dblWidth, dblHeight);
tagRECT deviceRect = new tagRECT();
deviceRect.left = 0;
deviceRect.top = 0;
deviceRect.right = (int)dblWidth;
deviceRect.bottom = (int)dblHeight;
IDisplayTransformation pDisplayTransformation = new DisplayTransformationClass();
pDisplayTransformation.VisibleBounds = pBoundsEnvelope;
pDisplayTransformation.Bounds = pBoundsEnvelope;
pDisplayTransformation.set_DeviceFrame(ref deviceRect);
pDisplayTransformation.Resolution = 96;
return(pDisplayTransformation as ITransformation);
}
/// <summary>
/// Previews the item.
/// </summary>
/// <param name="Symbol">The symbol.</param>
/// <param name="Width">The width.</param>
/// <param name="Height">The height.</param>
/// <returns>System.Drawing.Bitmap.</returns>
public static System.Drawing.Bitmap PreviewItem(ISymbol Symbol, int Width, int Height)
{
if (Symbol == null)
{
return(null);
}
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(Width, Height);
System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(bitmap);
graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
double resolution = (double)graphics.DpiY;
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords(0.0, 0.0, (double)bitmap.Width, (double)bitmap.Height);
tagRECT tagRECT = default(tagRECT);
tagRECT.bottom = bitmap.Height;
tagRECT.left = 0;
tagRECT.right = bitmap.Width;
tagRECT.top = 0;
IDisplayTransformation displayTransformation = new DisplayTransformationClass();
displayTransformation.VisibleBounds = envelope;
displayTransformation.Bounds = envelope;
displayTransformation.set_DeviceFrame(ref tagRECT);
displayTransformation.Resolution = resolution;
System.IntPtr hdc = graphics.GetHdc();
int hDC = hdc.ToInt32();
Symbol.SetupDC(hDC, displayTransformation);
IGeometry symbolGeometry = CommonAPI.GetSymbolGeometry(Symbol, envelope);
Symbol.Draw(symbolGeometry);
Symbol.ResetDC();
graphics.ReleaseHdc(hdc);
graphics.Dispose();
return(bitmap);
}
private ITransformation getTransformation(PictureBox picTarget)
{
RECT boundsRect;
GetWindowRect(picTarget.Handle.ToInt32(), out boundsRect);
int lWidth = boundsRect.Right - boundsRect.Left;
int lHeight = boundsRect.Bottom - boundsRect.Top;
IDisplayTransformation pDispTrans = new DisplayTransformationClass();
IEnvelope pBounds = new EnvelopeClass();
pBounds.PutCoords(picTarget.Left, picTarget.Top, picTarget.Right, picTarget.Bottom);
//pBounds.PutCoords(0, 0, lHeight, lWidth);
pDispTrans.VisibleBounds = pBounds;
pDispTrans.Bounds = pBounds;
tagRECT deviceRect;
deviceRect.left = 0;
deviceRect.top = 0;
deviceRect.right = lWidth;
deviceRect.bottom = lHeight;
pDispTrans.set_DeviceFrame(ref deviceRect);
IntPtr lHDC = picTarget.Handle;
int lDpi = GetDeviceCaps(lHDC, LOGPIXELSY);
if (lDpi == 0)
{
lDpi = 300;
}
pDispTrans.Resolution = lDpi;
return(pDispTrans);
}
private Image SymbolToBitmap(IGradientFillSymbol iSymbol, int iStyle, int iWidth, int iHeight)
{
IntPtr iHDC = new IntPtr();
Bitmap iBitmap = new Bitmap(iWidth, iHeight);
Graphics iGraphics = System.Drawing.Graphics.FromImage(iBitmap);
tagRECT itagRECT;
IEnvelope iEnvelope = new EnvelopeClass() as IEnvelope;
IDisplayTransformation iDisplayTransformation;
IPoint iPoint;
IGeometryCollection iPolyline;
IGeometryCollection iPolygon;
IRing iRing;
ISegmentCollection iSegmentCollection;
IGeometry iGeometry = null;
object Missing = Type.Missing;
iEnvelope.PutCoords(0, 0, iWidth, iHeight);
itagRECT.left = 0;
itagRECT.right = iWidth;
itagRECT.top = 0;
itagRECT.bottom = iHeight;
iDisplayTransformation = new DisplayTransformationClass();
iDisplayTransformation.VisibleBounds = iEnvelope;
iDisplayTransformation.Bounds = iEnvelope;
iDisplayTransformation.set_DeviceFrame(ref itagRECT);
iDisplayTransformation.Resolution = iGraphics.DpiX / 100000;
iHDC = iGraphics.GetHdc();
//获取Geometry;
if (iSymbol is ESRI.ArcGIS.Display.IMarkerSymbol)
{
switch (iStyle)
{
case 0:
iPoint = new ESRI.ArcGIS.Geometry.Point();
iPoint.PutCoords(iWidth / 2, iHeight / 2);
iGeometry = iPoint;
break;
default:
break;
}
}
else
{
if (iSymbol is ESRI.ArcGIS.Display.ILineSymbol)
{
iSegmentCollection = new ESRI.ArcGIS.Geometry.Path() as ISegmentCollection;
iPolyline = new ESRI.ArcGIS.Geometry.Polyline() as IGeometryCollection;
switch (iStyle)
{
case 0:
iSegmentCollection.AddSegment(CreateLine(0, iHeight / 2, iWidth, iHeight / 2) as ISegment, ref Missing, ref Missing);
iPolyline.AddGeometry(iSegmentCollection as IGeometry, ref Missing, ref Missing);
iGeometry = iPolyline as IGeometry;
break;
case 1:
iSegmentCollection.AddSegment(CreateLine(0, iHeight / 4, iWidth / 4, 3 * iHeight / 4) as ISegment, ref Missing, ref Missing);
iSegmentCollection.AddSegment(CreateLine(iWidth / 4, 3 * iHeight / 4, 3 * iWidth / 4, iHeight / 4) as ISegment, ref Missing, ref Missing);
iSegmentCollection.AddSegment(CreateLine(3 * iWidth / 4, iHeight / 4, iWidth, 3 * iHeight / 4) as ISegment, ref Missing, ref Missing);
iPolyline.AddGeometry(iSegmentCollection as IGeometry, ref Missing, ref Missing);
iGeometry = iPolyline as IGeometry;
break;
default:
break;
}
}
else
if (iSymbol is ESRI.ArcGIS.Display.IFillSymbol)
{
iSegmentCollection = new ESRI.ArcGIS.Geometry.Ring() as ISegmentCollection;
iPolygon = new ESRI.ArcGIS.Geometry.Polygon() as IGeometryCollection;
switch (iStyle)
{
case 0:
iSegmentCollection.AddSegment(CreateLine(5, iHeight - 5, iWidth - 6, iHeight - 5) as ISegment, ref Missing, ref Missing);
iSegmentCollection.AddSegment(CreateLine(iWidth - 6, iHeight - 5, iWidth - 6, 6) as ISegment, ref Missing, ref Missing);
iSegmentCollection.AddSegment(CreateLine(iWidth - 6, 6, 5, 6) as ISegment, ref Missing, ref Missing);
iRing = iSegmentCollection as IRing;
iRing.Close();
iPolygon.AddGeometry(iSegmentCollection as IGeometry, ref Missing, ref Missing);
iGeometry = iPolygon as IGeometry;
break;
default:
break;
}
}
else
if (iSymbol is ESRI.ArcGIS.Display.ISimpleTextSymbol)
{
switch (iStyle)
{
case 0:
iPoint = new ESRI.ArcGIS.Geometry.Point();
iPoint.PutCoords(iWidth / 2, iHeight / 2);
iGeometry = iPoint;
break;
default:
break;
}
}
}////////////////////////
if (iGeometry == null)
{
MessageBox.Show("几何对象不符合！", "错误");
return(null);
}
ISymbol pOutputSymbol = iSymbol as ISymbol;
pOutputSymbol.SetupDC(iHDC.ToInt32(), iDisplayTransformation);
pOutputSymbol.Draw(iGeometry);
pOutputSymbol.ResetDC();
iGraphics.ReleaseHdc(iHDC);
iGraphics.Dispose();
return(iBitmap);
}
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();
}
}
private ITransformation getTransformation(PictureBox picTarget)
{
RECT boundsRect;
GetWindowRect(picTarget.Handle.ToInt32(), out boundsRect);
int lWidth = boundsRect.Right - boundsRect.Left;
int lHeight = boundsRect.Bottom - boundsRect.Top;
IDisplayTransformation pDispTrans = new DisplayTransformationClass();
IEnvelope pBounds = new EnvelopeClass();
pBounds.PutCoords(picTarget.Left, picTarget.Top, picTarget.Right, picTarget.Bottom);
//pBounds.PutCoords(0, 0, lHeight, lWidth);
pDispTrans.VisibleBounds = pBounds;
pDispTrans.Bounds = pBounds;
tagRECT deviceRect;
deviceRect.left = 0;
deviceRect.top = 0;
deviceRect.right = lWidth;
deviceRect.bottom = lHeight;
pDispTrans.set_DeviceFrame(ref deviceRect);
IntPtr lHDC = picTarget.Handle;
int lDpi = GetDeviceCaps(lHDC, LOGPIXELSY);
if (lDpi == 0) lDpi = 300;
pDispTrans.Resolution = lDpi;
return pDispTrans;
}
private ITransformation CreateTransFromDC(int hDC, int lWidth, int lHeight)
{
// Calculate the parameters for the new transformation, based on the dimensions passed to this function.
IEnvelope pBoundsEnvelope = new EnvelopeClass();
pBoundsEnvelope.PutCoords(0, 0, lWidth, lHeight);
tagRECT deviceRect;
deviceRect.left = 0;
deviceRect.top = 0;
deviceRect.right = lWidth;
deviceRect.bottom = lHeight;
//int dpi;
//dpi = GetDeviceCaps(hDC, LOGPIXELSY);
//if (dpi == 0) return null;
// Create a new display transformation and set its properties.
IDisplayTransformation pDisplayTransformation = new DisplayTransformationClass();
pDisplayTransformation.VisibleBounds = pBoundsEnvelope;
pDisplayTransformation.Bounds = pBoundsEnvelope;
pDisplayTransformation.set_DeviceFrame(ref deviceRect);
pDisplayTransformation.Resolution = 300;
return pDisplayTransformation;
}
/// <summary>
/// 将符号转化为图片
/// </summary>
/// <param name="pSymbol">符号</param>
/// <param name="width">图片宽度</param>
/// <param name="height">图片高度</param>
/// <returns>图片</returns>
public static Image Symbol2Picture(ISymbol pSymbol, int width, int height)
{
if (pSymbol == null || width < 1 || height < 1)
{
return(null);
}
//根据高宽创建图象
Bitmap bmp = new Bitmap(width, height);
Graphics gImage = Graphics.FromImage(bmp);
gImage.Clear(Color.White);
double dpi = gImage.DpiX;
ESRI.ArcGIS.Geometry.IEnvelope pEnvelope = new ESRI.ArcGIS.Geometry.EnvelopeClass();
pEnvelope.PutCoords(0, 0, (double)bmp.Width, (double)bmp.Height);
tagRECT deviceRect;
deviceRect.left = 0;
deviceRect.right = bmp.Width;
deviceRect.top = 0;
deviceRect.bottom = bmp.Height;
IDisplayTransformation pDisplayTransformation = new DisplayTransformationClass();
pDisplayTransformation.VisibleBounds = pEnvelope;
pDisplayTransformation.Bounds = pEnvelope;
pDisplayTransformation.set_DeviceFrame(ref deviceRect);
pDisplayTransformation.Resolution = dpi;
System.IntPtr hdc = new IntPtr();
hdc = gImage.GetHdc();
ESRI.ArcGIS.Geometry.IGeometry pGeo = CreateSymShape(pSymbol, pEnvelope);
//将符号的形状绘制到图象中
pSymbol.SetupDC((int)hdc, pDisplayTransformation);
pSymbol.Draw(pGeo);
pSymbol.ResetDC();
gImage.ReleaseHdc(hdc);
gImage.Dispose();
return(bmp);
////IStyleGalleryClass pStyleClass = null;
////if (pSymbol is IMarkerSymbol)
//// pStyleClass = new ESRI.ArcGIS.Carto.MarkerSymbolStyleGalleryClassClass();
////else if (pSymbol is ILineSymbol)
//// pStyleClass = new ESRI.ArcGIS.Carto.LineSymbolStyleGalleryClassClass();
////else if (pSymbol is IFillSymbol)
//// pStyleClass = new ESRI.ArcGIS.Carto.FillSymbolStyleGalleryClassClass();
////else
//// return null;
//IStyleGalleryItem pStyleItem = new ServerStyleGalleryItemClass();
//pStyleItem.Name = "tempSymbol";
//pStyleItem.Item = pSymbol;
//Bitmap bitmap = new Bitmap(width, height);
//System.Drawing.Graphics pGraphics = System.Drawing.Graphics.FromImage(bitmap);
//tagRECT rect = new tagRECT();
//rect.right = bitmap.Width;
//rect.bottom = bitmap.Height;
////生成预览
//IntPtr hdc = new IntPtr();
//hdc = pGraphics.GetHdc();
//pStyleClass.Preview(pStyleItem, hdc.ToInt32(), ref rect);
//pGraphics.ReleaseHdc(hdc);
//pGraphics.Dispose();
//return bitmap;
}
