Bitmap createRGB_bil() // create rgb from a bil file
{
this.Cursor = Cursors.WaitCursor;
Bitmap bmp = new Bitmap(imgDat.Ncols, imgDat.Nrows, PixelFormat.Format24bppRgb);
int res = (imgDat.Ncols) % 4;
int stride = (imgDat.Ncols + res) * 3;
byte[] byOut = new byte[stride * imgDat.Nrows];
Int32 ind = 0;
red = imgTools.getOneBandBytes(Convert.ToInt16(cmbRed.SelectedItem));
green = imgTools.getOneBandBytes(Convert.ToInt16(cmbGreen.SelectedItem));
blue = imgTools.getOneBandBytes(Convert.ToInt16(cmbBlue.SelectedItem));
for (int i = 0; i < imgDat.Nrows; i++)
{
for (int j = 0; j < imgDat.Ncols; j++)
{
byte redb = red[i * imgDat.Ncols + j];
byte greenb = green[i * imgDat.Ncols + j];
byte blueb = blue[i * imgDat.Ncols + j];
byOut[ind] = blueb;
ind++;
byOut[ind] = greenb;
ind++;
byOut[ind] = redb;
ind++;
}
ind += res;
}
bmp = imgTools.ByteArrayToBitmap(byOut, imgDat.Ncols, imgDat.Nrows);
this.Cursor = Cursors.Default;
return(bmp);
}
public Bitmap createRGB_gwr(GeoImageData imgDat, byte[] red, byte[] green, byte[] blue)
{
Bitmap bmp = new Bitmap(imgDat.Ncols, imgDat.Nrows, PixelFormat.Format24bppRgb);
int res = (imgDat.Ncols) % 4;
//Math.DivRem(4 - res, 4, out res);
int stride = (imgDat.Ncols + res) * 3;
byte[] byOut = new byte[stride * imgDat.Nrows];
Int32 ind = 0;
for (int i = 0; i < imgDat.Nrows; i++)
{
for (int j = 0; j < imgDat.Ncols; j++)
{
byte redb = red[i * imgDat.Ncols + j];
byte greenb = green[i * imgDat.Ncols + j];
byte blueb = blue[i * imgDat.Ncols + j];
byOut[ind] = blueb;
ind++;
byOut[ind] = greenb;
ind++;
byOut[ind] = redb;
ind++;
}
ind += res;
}
GeoImageTools imgTools = new GeoImageTools(imgDat);
bmp = imgTools.ByteArrayToBitmap(byOut, imgDat.Ncols, imgDat.Nrows);
return(bmp);
}
public Bitmap createRGB_gwr(Size ncolnrows, byte[] red, byte[] green, byte[] blue)
{
Bitmap bmp = new Bitmap(ncolnrows.Width, ncolnrows.Height, PixelFormat.Format24bppRgb);
int res = (ncolnrows.Width) % 4;
//Math.DivRem(4 - res, 4, out res);
int stride = (ncolnrows.Width + res) * 3;
byte[] byOut = new byte[stride * ncolnrows.Height];
Int32 ind = 0;
for (int i = 0; i < ncolnrows.Height; i++)
{
ind += res;
for (int j = 0; j < ncolnrows.Width; j++)
{
byte redb = red[i * ncolnrows.Width + j];
byte greenb = green[i * ncolnrows.Width + j];
byte blueb = blue[i * ncolnrows.Width + j];
byOut[ind] = blueb;
ind++;
byOut[ind] = greenb;
ind++;
byOut[ind] = redb;
ind++;
}
}
GeoImageTools imgTools = new GeoImageTools();
bmp = imgTools.ByteArrayToBitmap(byOut, ncolnrows.Width, ncolnrows.Height);
return(bmp);
}
public Bitmap getAnRGBBand(int whichBand)
{
string gwrFile = Path.GetDirectoryName(gida.FileName) + "\\" + Path.GetFileNameWithoutExtension(gida.FileName) + "\\" + whichBand + ".gwr";
byte[] byIn = File.ReadAllBytes(gwrFile);
Bitmap bmp = new Bitmap(gida.Ncols, gida.Nrows, PixelFormat.Format24bppRgb);
int res = (gida.Ncols) % 4;
int Stride = (gida.Ncols + res) * 3;
byte[] byOut = new byte[Stride * gida.Nrows];
Int32 ind = 0;
byte redb = 0;
byte greenb = 0;
byte blueb = 0;
for (int i = 0; i < gida.Nrows; i++)
{
for (int j = 0; j < gida.Ncols; j++)
{
if (whichBand == 0)
{
redb = byIn[i * gida.Ncols + j]; greenb = 0; blueb = 0;
}
if (whichBand == 1)
{
greenb = byIn[i * gida.Ncols + j]; redb = 0; blueb = 0;
}
if (whichBand == 2)
{
blueb = byIn[i * gida.Ncols + j]; redb = 0; greenb = 0;
}
byOut[ind] = blueb;
ind++;
byOut[ind] = greenb;
ind++;
byOut[ind] = redb;
ind++;
}
ind += res;
}
GeoImageTools imgTools = new GeoImageTools(gida);
bmp = imgTools.ByteArrayToBitmap(byOut, gida.Ncols, gida.Nrows);
return(bmp);
}
