private void DrawColorRamp()
{
string sInstall = ESRI.ArcGIS.RuntimeManager.ActiveRuntime.Path;
string styleFilePath = sInstall + "\\Styles\\ESRI.ServerStyle";
IStyleGallery styleGallery = new ServerStyleGalleryClass();
IStyleGalleryItem styleGalleryItem = null;
IStyleGalleryStorage styleGalleryStorage = styleGallery as IStyleGalleryStorage;
styleGalleryStorage.AddFile(styleFilePath);
IEnumStyleGalleryItem enumStyleGalleryItem = styleGallery.get_Items("Color Ramps", styleFilePath, "");
enumStyleGalleryItem.Reset();
styleGalleryItem = enumStyleGalleryItem.Next();
while (styleGalleryItem != null)
{
m_ColorRamp = (IColorRamp)styleGalleryItem.Item;
EnumStyleItem.Add(m_ColorRamp);
m_FillSymbol = new GradientFillSymbol();
m_FillSymbol.GradientAngle = 0;
m_FillSymbol.ColorRamp = m_ColorRamp;
pictureBox1.Image = SymbolToBitmap(m_FillSymbol, 0, pictureBox1.Width, pictureBox1.Height);
imageList1.Images.Add(pictureBox1.Image);
comboBoxColor.Items.Add(pictureBox1.Image);
styleGalleryItem = enumStyleGalleryItem.Next();
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(enumStyleGalleryItem);
}
private void DrawColorRamp()
{
string strDefaultStyleFileName = string.Format("{0}\\CNUStyles\\ESRI.ServerStyle", Application.StartupPath);
IStyleGallery styleGallery = new ServerStyleGalleryClass();
IStyleGalleryItem styleGalleryItem = new ServerStyleGalleryItemClass();
IStyleGalleryStorage styleGalleryStorage = styleGallery as IStyleGalleryStorage;
styleGalleryStorage.AddFile(strDefaultStyleFileName);
IEnumStyleGalleryItem enumStyleGalleryItem = styleGallery.get_Items("Color Ramps", strDefaultStyleFileName, "");
enumStyleGalleryItem.Reset();
styleGalleryItem = enumStyleGalleryItem.Next();
while (styleGalleryItem != null)
{
m_ColorRamp = (IColorRamp)styleGalleryItem.Item;
EnumStyleItem.Add(m_ColorRamp);
//新建m_FillSymbol和m_colorRamp
m_FillSymbol = new GradientFillSymbol();
m_FillSymbol.GradientPercentage = 1;
m_FillSymbol.IntervalCount = 255;
m_FillSymbol.GradientAngle = 0;
m_FillSymbol.ColorRamp = m_ColorRamp;
pictureBox1.Image = SymbolToBitmap(m_FillSymbol, 0, pictureBox1.Width, pictureBox1.Height);
pictureBox2.Image = SymbolToBitmap(m_FillSymbol, 0, pictureBox1.Width, pictureBox1.Height);
imageList1.Images.Add(m_ColorRamp.Name, pictureBox1.Image);
imageList2.Images.Add(m_ColorRamp.Name, pictureBox1.Image);
colorComboBox.Items.Add(pictureBox1.Image);
colorComboBox1.Items.Add(pictureBox2.Image);
styleGalleryItem = enumStyleGalleryItem.Next();
}
}
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);
}
private Bitmap DrawToPictureBox(ISymbol pSym, PictureBox pBox)
{
IGeometry pGeometry = null;
System.Drawing.Graphics pGraphics = null;
pGraphics = System.Drawing.Graphics.FromHwnd(pBox.Handle);
pGraphics.FillRectangle(System.Drawing.Brushes.White, pBox.ClientRectangle);
Bitmap image = new Bitmap(pBox.Width, pBox.Height, pGraphics);
IEnvelope pEnvelope = new EnvelopeClass();
if (pSym is IMarkerSymbol)
{
IPoint pPoint = new PointClass(); //the geometry of a MarkerSymbol
pPoint.PutCoords(pBox.Width / 2, pBox.Height / 2); //center in middle of pBox
pGeometry = pPoint;
}
if (pSym is ILineSymbol)
{
pEnvelope.PutCoords(0, pBox.Height / 2, pBox.Width, pBox.Height / 2);
IPolyline pPolyline = new PolylineClass();
pPolyline.FromPoint = pEnvelope.LowerLeft;
pPolyline.ToPoint = pEnvelope.UpperRight;
pGeometry = pPolyline;
}
if (pSym is IFillSymbol)
{
pEnvelope.PutCoords(1, 1, pBox.Width - 1, pBox.Height - 1);
pGeometry = pEnvelope;
if (pSym is IMultiLayerFillSymbol)
{
IMultiLayerFillSymbol pMultiLayerFillSymbol = pSym as IMultiLayerFillSymbol;
//For mLayers As Integer = 0 To pMultiLayerFillSymbol.LayerCount - 1
for (int i = 0; i < pMultiLayerFillSymbol.LayerCount; i++)
{
if (pMultiLayerFillSymbol.get_Layer(i) is IPictureFillSymbol)
{
IPictureFillSymbol pPictureFillSymbol = pMultiLayerFillSymbol.get_Layer(0) as IPictureFillSymbol;
image = Bitmap.FromHbitmap(new IntPtr(pPictureFillSymbol.Picture.Handle));
//m.MakeTransparent(System.Drawing.ColorTranslator.FromOle(pPictureFillSymbol.Color.RGB))
return(image);
}
else if (pMultiLayerFillSymbol.get_Layer(i) is ISimpleFillSymbol)
{
pEnvelope.PutCoords(1, 1, pBox.Width - 1, pBox.Height - 1);
pGeometry = pEnvelope;
}
else if (pMultiLayerFillSymbol.get_Layer(i) is IGradientFillSymbol)
{
IGradientFillSymbol pGradientFillSymbol = pMultiLayerFillSymbol.get_Layer(0) as IGradientFillSymbol;
IAlgorithmicColorRamp pRamp = pGradientFillSymbol.ColorRamp as IAlgorithmicColorRamp;
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(new System.Drawing.Point(0, 0), new System.Drawing.Size(pBox.Width, pBox.Height));
LinearGradientBrush lgBrush = new LinearGradientBrush(rect,
System.Drawing.ColorTranslator.FromOle(pRamp.FromColor.RGB),
System.Drawing.ColorTranslator.FromOle(pRamp.ToColor.RGB),
45);
pGraphics.FillRectangle(lgBrush, rect);
rect.Width = rect.Width - 1;
rect.Height = rect.Height - 1;
pGraphics.DrawRectangle(new Pen(ColorTranslator.FromOle(pGradientFillSymbol.Outline.Color.RGB),
(float)pGradientFillSymbol.Outline.Width), rect);
image = new Bitmap(pBox.Width, pBox.Height, pGraphics);
}
}
}
else if (pSym is IPictureFillSymbol)
{
IPictureFillSymbol pPictureFillSymbol = pSym as IPictureFillSymbol;
image = Bitmap.FromHbitmap(new IntPtr(pPictureFillSymbol.Picture.Handle));
//m.MakeTransparent(System.Drawing.ColorTranslator.FromOle(pPictureFillSymbol.Color.RGB))
return(image);
}
}
IntPtr hDC = GetDC(pBox.Handle);
pSym.SetupDC(hDC.ToInt32(), null);
pSym.ROP2 = esriRasterOpCode.esriROPCopyPen;
if (pGeometry != null)
{
pSym.Draw(pGeometry);
}
pSym.ResetDC();
Graphics g2 = Graphics.FromImage(image);
//获得屏幕的句柄
IntPtr dc3 = pGraphics.GetHdc();
//获得位图的句柄
IntPtr dc2 = g2.GetHdc();
BitBlt(dc2, 0, 0, pBox.Width, pBox.Height, dc3, 0, 0, SRCCOPY);
pGraphics.ReleaseHdc(dc3); //释放屏幕句柄
g2.ReleaseHdc(dc2); //释放位图句柄
//image.Save("c:\\MyJpeg.Icon", ImageFormat.Bmp);
return(image);
}
private void DrawToPictureBox(ISymbol pSym, PictureBox pBox)
{
IGeometry pGeometry = null;
IntPtr hDC;
IEnvelope pEnvelope;
pEnvelope = new EnvelopeClass();
// Reset the PictureBox
pBox.CreateGraphics().Clear(pBox.BackColor);
try
{
if (pSym is IMarkerSymbol)
{
pEnvelope.PutCoords(pBox.Width / 2, pBox.Height / 2, pBox.Width / 2, pBox.Height / 2);
IArea pArea = pEnvelope as IArea;
pGeometry = pArea.Centroid;
}
else if (pSym is ILineSymbol)
{
pEnvelope.PutCoords(0, pBox.Height / 2, pBox.Width, pBox.Height / 2);
IPolyline pPolyline = new PolylineClass();
pPolyline.FromPoint = pEnvelope.LowerLeft;
pPolyline.ToPoint = pEnvelope.UpperRight;
pGeometry = pPolyline;
}
else if (pSym is IFillSymbol)
{
if (pSym is SimpleFillSymbol)
{
pEnvelope.PutCoords(5, 5, pBox.Width - 5, pBox.Height - 5);
pGeometry = pEnvelope;
}
else if (pSym is MultiLayerFillSymbol)
{
IMultiLayerFillSymbol pMultiLayerFillSymbol = pSym as IMultiLayerFillSymbol;
//For mLayers As Integer = 0 To pMultiLayerFillSymbol.LayerCount - 1
if (pMultiLayerFillSymbol.get_Layer(0) is PictureFillSymbol)
{
IPictureFillSymbol pPictureFillSymbol = pMultiLayerFillSymbol.get_Layer(0) as IPictureFillSymbol;
Bitmap m = Bitmap.FromHbitmap(new IntPtr(pPictureFillSymbol.Picture.Handle));
//m.MakeTransparent(System.Drawing.ColorTranslator.FromOle(pPictureFillSymbol.Color.RGB))
pBox.Image = m;
return;
}
else if (pMultiLayerFillSymbol.get_Layer(0) is SimpleFillSymbol)
{
pEnvelope.PutCoords(5, 5, pBox.Width - 5, pBox.Height - 5);
pGeometry = pEnvelope;
}
else if (pMultiLayerFillSymbol.get_Layer(0) is GradientFillSymbol)
{
IGradientFillSymbol pGradientFillSymbol = pMultiLayerFillSymbol.get_Layer(0) as IGradientFillSymbol;
IAlgorithmicColorRamp pRamp = pGradientFillSymbol.ColorRamp as IAlgorithmicColorRamp;
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(new System.Drawing.Point(0, 0), new System.Drawing.Size(pBox.Width, pBox.Height));
LinearGradientBrush lgBrush = new LinearGradientBrush(rect,
System.Drawing.ColorTranslator.FromOle(pRamp.FromColor.RGB),
System.Drawing.ColorTranslator.FromOle(pRamp.ToColor.RGB),
45);
Graphics g = pBox.CreateGraphics();
g.FillRectangle(lgBrush, rect);
rect.Width = rect.Width - 1;
rect.Height = rect.Height - 1;
g.DrawRectangle(new Pen(ColorTranslator.FromOle(pGradientFillSymbol.Outline.Color.RGB),
(float)pGradientFillSymbol.Outline.Width), rect);
}
}
else if (pSym is PictureFillSymbol)
{
IPictureFillSymbol pPictureFillSymbol = pSym as IPictureFillSymbol;
Bitmap m = Bitmap.FromHbitmap(new IntPtr(pPictureFillSymbol.Picture.Handle));
//m.MakeTransparent(System.Drawing.ColorTranslator.FromOle(pPictureFillSymbol.Color.RGB))
pBox.Image = m;
return;
}
}
hDC = GetDC(pBox.Handle);
pSym.SetupDC(hDC.ToInt32(), null);
pSym.ROP2 = esriRasterOpCode.esriROPCopyPen;
if (pGeometry != null)
{
pSym.Draw(pGeometry);
}
pSym.ResetDC();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
