public Bitmap ToBitmap()
{
Bitmap bmp = new Bitmap((int)size, (int)size);
UnsafeBitmap ubmp = new UnsafeBitmap(bmp);
ubmp.LockBitmap();
for (int y = 0; y < size; y++)
{
for (int x = 0; x < size; x++)
{
byte c = (byte)(data[y * size + x] / 256);
if (c < 0)
c = 0;
if (c > 255)
c = 255;
PixelData color;
color.red = color.green = color.blue = c;
ubmp.SetPixel(x, y, color);
}
}
ubmp.UnlockBitmap();
return ubmp.Bitmap;
}
private bool buildSlopemap()
{
slopemap = new Bitmap(outputSize, outputSize);
UnsafeBitmap sm = new UnsafeBitmap(slopemap);
sm.LockBitmap();
for (int y = 0; y < outputSize; y++)
{
for (int x = 0; x < outputSize; x++)
{
UInt32 height = heightmap.GetHeight(x, y);
UInt32 averageHeight = heightmap.SampleHeight(x, y, 3);
double slope = (double)Math.Abs((double)height - (double)averageHeight);
slope = slope * slopeMultiplier;
byte bslope = (byte)(slope);
PixelData slopeColor;
slopeColor.red = slopeColor.green = slopeColor.blue = bslope;
sm.SetPixel(x, y, slopeColor);
}
backgroundWorker.ReportProgress((int)(((float)y / (float)outputSize) * 100), "Building slope map...");
}
byte maxSlope = 0;
for (int y = 0; y < outputSize; y++)
{
for (int x = 0; x < outputSize; x++)
{
byte v = sm.GetPixel(x, y).red;
if (v > maxSlope)
maxSlope = v;
}
backgroundWorker.ReportProgress((int)(((float)y / (float)outputSize) * 100), "Processing slope map...");
}
if (slopeBlur > 0)
{
for (int i = 0; i < slopeBlur; i++)
{
backgroundWorker.ReportProgress((int)(((double)i / (double)slopeBlur) * 100), "Blurring slope map...");
sm.Blur(1, true);
}
}
sm.UnlockBitmap();
slopemap = sm.Bitmap;
return true;
}