public static ColorMap Hot(int size)
{
ColorMap map = new ColorMap(size);
float v, step = 1.0f / (size - 1);
float[] rgb = new float[3];
for (int i = 0; i < size; i += 1)
{
v = 2.5f * i * step;
rgb[0] = v;
rgb[1] = v - 1;
rgb[2] = 2 * v - 4;
Clamp(rgb, 0.0f, 1.0f);
map.colors[i] = ColorFromRgb(rgb[0], rgb[1], rgb[2]);
}
return map;
}
public static ColorMap Jet(int size)
{
ColorMap map = new ColorMap(size);
float v, step = 1.0f / (size - 1);
float[] rgb = new float[3];
for (int i = 0; i < size; i += 1)
{
v = 4 * i * step;
rgb[0] = Math.Min(v - 1.5f, 4.5f - v);
rgb[1] = Math.Min(v - 0.5f, 3.5f - v);
rgb[2] = Math.Min(v + 0.5f, 2.5f - v);
Clamp(rgb, 0.0f, 1.0f);
map.colors[size - i - 1] = ColorFromRgb(rgb[0], rgb[1], rgb[2]);
}
return map;
}
public static ColorMap Jet(int size)
{
ColorMap map = new ColorMap(size);
float v, step = 1.0f / (size - 1);
float[] rgb = new float[3];
for (int i = 0; i < size; i += 1)
{
v = 4 * i * step;
rgb[0] = Math.Min(v - 1.5f, 4.5f - v);
rgb[1] = Math.Min(v - 0.5f, 3.5f - v);
rgb[2] = Math.Min(v + 0.5f, 2.5f - v);
Clamp(rgb, 0.0f, 1.0f);
map.colors[size - i - 1] = ColorFromRgb(rgb[0], rgb[1], rgb[2]);
}
return(map);
}
public static ColorMap Hot(int size)
{
ColorMap map = new ColorMap(size);
float v, step = 1.0f / (size - 1);
float[] rgb = new float[3];
for (int i = 0; i < size; i += 1)
{
v = 2.5f * i * step;
rgb[0] = v;
rgb[1] = v - 1;
rgb[2] = 2 * v - 4;
Clamp(rgb, 0.0f, 1.0f);
map.colors[i] = ColorFromRgb(rgb[0], rgb[1], rgb[2]);
}
return(map);
}
// TODO: remove colormap argument
public void AttachLayerData(float[] values, ColorMap colormap)
{
int length = values.Length;
Color[] data = new Color[length];
double min = double.MaxValue;
double max = double.MinValue;
// Find min and max of given values.
for (int i = 0; i < length; i++)
{
if (values[i] < min)
{
min = values[i];
}
if (values[i] > max)
{
max = values[i];
}
}
for (int i = 0; i < length; i++)
{
data[i] = colormap.GetColor(values[i], min, max);
}
colors = new ColorBuffer(data, 1);
}