public static PdfShading SimpleRadial(PdfWriter writer, float x0, float y0, float r0, float x1, float y1, float r1, Color startColor, Color endColor, bool extendStart, bool extendEnd)
{
CheckCompatibleColors(startColor, endColor);
PdfFunction function = PdfFunction.Type2(writer, new float[] { 0, 1 }, null, GetColorArray(startColor),
GetColorArray(endColor), 1);
return(Type3(writer, startColor, new float[] { x0, y0, r0, x1, y1, r1 }, null, function, new bool[] { extendStart, extendEnd }));
}
protected internal PdfObject GetSpotObject(PdfWriter writer)
{
PdfArray array = new PdfArray(PdfName.SEPARATION);
array.Add(name);
PdfFunction func = null;
if (altcs is ExtendedColor)
{
int type = ((ExtendedColor)altcs).Type;
switch (type)
{
case ExtendedColor.TYPE_GRAY:
array.Add(PdfName.DEVICEGRAY);
func = PdfFunction.Type2(writer, new float[] { 0, 1 }, null, new float[] { 0 }, new float[] { ((GrayColor)altcs).Gray }, 1);
break;
case ExtendedColor.TYPE_CMYK:
array.Add(PdfName.DEVICECMYK);
CMYKColor cmyk = (CMYKColor)altcs;
func = PdfFunction.Type2(writer, new float[] { 0, 1 }, null, new float[] { 0, 0, 0, 0 },
new float[] { cmyk.Cyan, cmyk.Magenta, cmyk.Yellow, cmyk.Black }, 1);
break;
default:
throw new Exception("Only RGB, Gray and CMYK are supported as alternative color spaces.");
}
}
else
{
array.Add(PdfName.DEVICERGB);
func = PdfFunction.Type2(writer, new float[] { 0, 1 }, null, new float[] { 1, 1, 1 },
new float[] { (float)altcs.R / 255, (float)altcs.G / 255, (float)altcs.B / 255 }, 1);
}
array.Add(func.Reference);
return(array);
}
