public static void Resample(Bitmap dest, IDisplay destDisplay, Bitmap source, IDisplay sourceDisplay)
{
BitmapData destData = null, sourceData = null;
gView.Framework.Geometry.GeometricTransformer transformer = new gView.Framework.Geometry.GeometricTransformer();
try
{
//transformer.FromSpatialReference = sourceDisplay.SpatialReference;
//transformer.ToSpatialReference = destDisplay.SpatialReference;
transformer.SetSpatialReferences(sourceDisplay.SpatialReference, destDisplay.SpatialReference);
destData = dest.LockBits(new Rectangle(0, 0, dest.Width, dest.Height), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
sourceData = source.LockBits(new Rectangle(0, 0, source.Width, source.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
int sWidth = source.Width, sHeight = source.Height;
int dWidth = dest.Width, dHeight = dest.Height;
unsafe
{
byte *ptr = (byte *)destData.Scan0;
for (int y = 0; y < dHeight; y++)
{
for (int x = 0; x < dWidth; x++)
{
double xx = x, yy = y;
destDisplay.Image2World(ref xx, ref yy);
gView.Framework.Geometry.IPoint point = (gView.Framework.Geometry.IPoint)transformer.InvTransform2D(new gView.Framework.Geometry.Point(xx, yy));
xx = point.X; yy = point.Y;
sourceDisplay.World2Image(ref xx, ref yy);
int x_ = (int)xx, y_ = (int)yy;
if (x_ >= 0 && x_ < sWidth &&
y_ >= 0 && y_ < sHeight)
{
byte *p = (byte *)sourceData.Scan0;
p += (y_ * destData.Stride + x_ * 4);
if (p[3] != 0) // Transparenz!!!
{
ptr[0] = p[0];
ptr[1] = p[1];
ptr[2] = p[2];
ptr[3] = p[3];
}
}
ptr += 4;
}
ptr += destData.Stride - destData.Width * 4;
}
}
}
catch { }
finally
{
transformer.Release();
if (destData != null)
{
dest.UnlockBits(destData);
}
if (sourceData != null)
{
source.UnlockBits(sourceData);
}
}
}
public bool Merge(Bitmap image, IDisplay display)
{
try
{
int iWidth = image.Width;
int iHeight = image.Height;
using (System.Drawing.Graphics gr = System.Drawing.Graphics.FromImage(image))
{
gr.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceOver;
foreach (GeorefBitmap geoBmp in m_picList)
{
if (geoBmp == null || geoBmp.Bitmap == null)
{
continue;
}
if (image != geoBmp.Bitmap)
{
if (geoBmp.Envelope != null)
{
double x0, y0, x1, y1, x2, y2;
gView.Framework.Geometry.IGeometry geom = gView.Framework.Geometry.GeometricTransformer.Transform2D(geoBmp.Envelope, geoBmp.SpatialReference, display.SpatialReference);
if (geom is gView.Framework.Geometry.IPolygon)
{
gView.Framework.Geometry.IRing ring = ((gView.Framework.Geometry.IPolygon)geom)[0];
x0 = ring[1].X; y0 = ring[1].Y;
x1 = ring[2].X; y1 = ring[2].Y;
x2 = ring[0].X; y2 = ring[0].Y;
/////////////////////////////////////////////////////////
Display d = new Display(false);
d.Limit = d.Envelope = geoBmp.Envelope;
d.iWidth = geoBmp.Bitmap.Width;
d.iHeight = geoBmp.Bitmap.Height;
d.SpatialReference = geoBmp.SpatialReference;
Resample(image, display, geoBmp.Bitmap, d);
continue;
gView.Framework.Geometry.GeometricTransformer transformer = new gView.Framework.Geometry.GeometricTransformer();
//transformer.FromSpatialReference = geoBmp.SpatialReference;
//transformer.ToSpatialReference = display.SpatialReference;
transformer.SetSpatialReferences(geoBmp.SpatialReference, display.SpatialReference);
for (int y = 0; y < image.Height; y++)
{
for (int x = 0; x < image.Width; x++)
{
double xx = x, yy = y;
display.Image2World(ref xx, ref yy);
gView.Framework.Geometry.IPoint point = (gView.Framework.Geometry.IPoint)transformer.InvTransform2D(new gView.Framework.Geometry.Point(xx, yy));
xx = point.X; yy = point.Y;
d.World2Image(ref xx, ref yy);
try
{
int x_ = (int)xx, y_ = (int)yy;
if (x_ >= 0 && y_ < geoBmp.Bitmap.Width &&
y_ > 0 && y_ < geoBmp.Bitmap.Height)
{
image.SetPixel(x, y, geoBmp.Bitmap.GetPixel(x_, y_));
}
}
catch { }
}
}
transformer.Release();
continue;
//////////////////////////////////////////////////////////
}
else
{
x0 = geoBmp.Envelope.minx; y0 = geoBmp.Envelope.maxy;
x1 = geoBmp.Envelope.maxx; y1 = geoBmp.Envelope.maxy;
x2 = geoBmp.Envelope.minx; y2 = geoBmp.Envelope.miny;
}
display.World2Image(ref x0, ref y0);
display.World2Image(ref x1, ref y1);
display.World2Image(ref x2, ref y2);
PointF[] points =
{
new PointF((float)x0, (float)y0),
new PointF((float)x1, (float)y1),
new PointF((float)x2, (float)y2)
};
if (geoBmp.Opacity >= 0 && geoBmp.Opacity < 1.0)
{
float[][] ptsArray =
{
new float[] { 1, 0, 0, 0, 0 },
new float[] { 0, 1, 0, 0, 0 },
new float[] { 0, 0, 1, 0, 0 },
new float[] { 0, 0, 0, geoBmp.Opacity, 0 },
new float[] { 0, 0, 0, 0, 1 }
};
System.Drawing.Imaging.ColorMatrix clrMatrix = new System.Drawing.Imaging.ColorMatrix(ptsArray);
System.Drawing.Imaging.ImageAttributes imgAttributes = new System.Drawing.Imaging.ImageAttributes();
imgAttributes.SetColorMatrix(clrMatrix,
System.Drawing.Imaging.ColorMatrixFlag.Default,
System.Drawing.Imaging.ColorAdjustType.Bitmap);
// Bitmap "kopieren", sonst kann es Out Of Memory Exceptions kommen!!!
using (Bitmap bm_ = new Bitmap(geoBmp.Bitmap.Width, geoBmp.Bitmap.Height, NonIndedexedPixelFormat(geoBmp)))
{
using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bm_))
{
g.DrawImage(geoBmp.Bitmap, new Point(0, 0));
g.Dispose();
}
gr.DrawImage(bm_,
points,
new RectangleF(0, 0, geoBmp.Bitmap.Width, geoBmp.Bitmap.Height),
GraphicsUnit.Pixel, imgAttributes);
bm_.Dispose();
}
}
else
{
gr.DrawImage(geoBmp.Bitmap,
points,
new RectangleF(0, 0, geoBmp.Bitmap.Width, geoBmp.Bitmap.Height),
GraphicsUnit.Pixel);
}
}
else
{
if (geoBmp.Opacity >= 0 && geoBmp.Opacity < 1.0)
{
float[][] ptsArray =
{
new float[] { 1, 0, 0, 0, 0 },
new float[] { 0, 1, 0, 0, 0 },
new float[] { 0, 0, 1, 0, 0 },
new float[] { 0, 0, 0, geoBmp.Opacity, 0 },
new float[] { 0, 0, 0, 0, 1 }
};
System.Drawing.Imaging.ColorMatrix clrMatrix = new System.Drawing.Imaging.ColorMatrix(ptsArray);
System.Drawing.Imaging.ImageAttributes imgAttributes = new System.Drawing.Imaging.ImageAttributes();
imgAttributes.SetColorMatrix(clrMatrix,
System.Drawing.Imaging.ColorMatrixFlag.Default,
System.Drawing.Imaging.ColorAdjustType.Bitmap);
// Bitmap "kopieren", sonst kann es Out Of Memory Exceptions kommen!!!
using (Bitmap bm_ = new Bitmap(geoBmp.Bitmap.Width, geoBmp.Bitmap.Height, NonIndedexedPixelFormat(geoBmp)))
{
using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bm_))
{
g.DrawImage(geoBmp.Bitmap, new Point(0, 0));
g.Dispose();
}
gr.DrawImage(bm_,
new Rectangle(0, 0, iWidth, iHeight),
0, 0, geoBmp.Bitmap.Width, geoBmp.Bitmap.Height,
GraphicsUnit.Pixel,
imgAttributes);
bm_.Dispose();
}
}
else
{
gr.DrawImage(geoBmp.Bitmap,
new Rectangle(0, 0, iWidth, iHeight),
new Rectangle(0, 0, geoBmp.Bitmap.Width, geoBmp.Bitmap.Height),
GraphicsUnit.Pixel);
}
}
}
}
gr.Dispose();
}
if (m_scale > 0)
{
scalebar bar = new scalebar(m_scale, m_dpi);
bar.Create(ref image, image.Width - (int)(50 * m_dpi / 96.0) - bar.ScaleBarWidth, image.Height - (int)(32 * m_dpi / 96.0));
}
return(true);
}
catch (Exception ex)
{
_errMsg = ex.Message + "\n" + ex.Source + "\n" + ex.StackTrace;
return(false);
}
}