private Tuple <Material, Media3D.Transform3D> LoadBeetle()
{
var data = ReadDat("stagbeetle208x208x123.dat", out var width, out var height, out var depth);
var m = new VolumeTextureDiffuseMaterial();
ushort max = data.Max();
uint[] histogram = new uint[max + 1];
float[] fdata = new float[data.Length];
for (int i = 0; i < data.Length; ++i)
{
fdata[i] = (float)data[i] / max;
histogram[data[i]]++;
}
var transferMap = GetTransferFunction(histogram, data.Length, 1, 0.0001f);
var gradients = VolumeDataHelper.GenerateGradients(fdata, width, height, depth, 1);
VolumeDataHelper.FilterNxNxN(gradients, width, height, depth, 3);
m.Texture = new VolumeTextureGradientParams(gradients, width, height, depth);
m.Color = new Color4(0, 1, 0, 0.4f);
var transform = new Media3D.ScaleTransform3D(1, 1, 1);
transform.Freeze();
m.Freeze();
return(new Tuple <Material, Media3D.Transform3D>(m, transform));
}
private VolumeTextureGradientParams ProcessData(byte[] data, int width, int height, int depth, out Color4[] transferMap)
{
uint[] histogram = new uint[256];
float[] fdata = new float[data.Length];
for (int i = 0; i < data.Length; ++i)
{
fdata[i] = (float)data[i] / byte.MaxValue;
histogram[data[i]]++;
}
transferMap = GetTransferFunction(histogram, data.Length);
var gradients = VolumeDataHelper.GenerateGradients(fdata, width, height, depth, 1);
VolumeDataHelper.FilterNxNxN(gradients, width, height, depth, 3);
return(new VolumeTextureGradientParams(gradients, width, height, depth));
}
