Description
int
pdf_shading ( resource pdfdoc, string shtype, float x0, float y0, float x1, float y1, float c1, float c2, float c3, float c4, string optlist )
Defines a blend from the current fill color to another color.
For axial shadings, (x0, y0)
and (x1, y1) are the
coordinates of the starting and ending points of the shading. For radial
shadings these points specify the centers of the starting and ending
circles. c1, c2,
c3, and c4 are the color
values of the shading endpoint, interpreted in the current fill color
space in the same way as the color parameters in
pdf_setcolor().
This function returns a shading handle that can be used in subsequent calls to pdf_shading_pattern() and pdf_shfill().
This function requires PDF 1.4 or above.
