public override void CubicCurveTo(double x1, double y1, double x2, double y2, double x, double y)
{
x1 *= MmToPt;
y1 *= MmToPt;
x2 *= MmToPt;
y2 *= MmToPt;
x *= MmToPt;
y *= MmToPt;
_contentStream.CurveTo((float)x1, (float)y1, (float)x2, (float)y2, (float)x, (float)y);
}
