public static PdfShading Type3(PdfWriter writer, BaseColor colorSpace, float[] coords, float[] domain, PdfFunction function, bool[] extend)
{
PdfShading sp = Type2(writer, colorSpace, coords, domain, function, extend);
sp.shadingType = 3;
sp.shading.Put(PdfName.SHADINGTYPE, new PdfNumber(sp.shadingType));
return sp;
}