PS_shading — Create shading

       This manual page was written by Uwe Steinmann uwe@steinmann.cx.

                                                                                                   PS_SHADING(3)

       This function creates a shading which can be used by PS_shfill(3) or PS_shading_pattern(3). The  type  of
       shading  can be either `radial' or `axial'. Each shading starts with the current fill color and ends with
       the given color values passed in the parameters c1 to c4 (see PS_setcolor(3)         for their  meaning).
       The  coordinates  x0,  y0,  x1, y1 are the start and end point of the shading.  If the shading is of type
       `radial' the option list must also contain the parameters r0 and r1 with the radius of the start and  end
       circle.

       The color of the shading can be in any color space except for `pattern'.

       PS_shading — Create shading

       Returns the identifier of the shading or zero in case of an error.  The identifier is a positiv number.

PS_shfill(3), PS_shading_pattern(3)

       #include <pslib.h>

       int  PS_shading(PSDoc *psdoc, const char *shtype, float x0, float y0, float x1, float y1, float c1, float
       c2, float c3, float c4, const char *optlist)