private ColorBlend GetColorBlend(Band band)
{
if (_colorBlend != null)
return _colorBlend;
int hasVal;
//Get minimum raster value
double dblMin;
band.GetMinimum(out dblMin, out hasVal);
if (hasVal == 0) dblMin = Double.NaN;
//Get maximum raster value
double dblMax;
band.GetMaximum(out dblMax, out hasVal);
if (hasVal == 0) dblMax = double.NaN;
if (double.IsNaN(dblMin) || double.IsNaN(dblMax))
return null;
double dblMean, dblStdDev;
band.GetStatistics(0, 1, out dblMin, out dblMax, out dblMean,
out dblStdDev);
// ToDo: Colorblend positions
var minmax = new[]
{
Convert.ToSingle(dblMin),
0.5f*Convert.ToSingle(dblMin + dblMax),
Convert.ToSingle(dblMax)
};
_colorBlend = new ColorBlend(new[] { Color.Blue, Color.Yellow, Color.Red }, minmax);
return _colorBlend;
}