(PECL ps >= 1.3.0)
Creates a shading for later use
int ps_shading ( resource $psdoc, string $type, float $x0, float $y0, float $x1, float $y1, float $c1, float $c2, float $c3, float $c4, string $optlist )
Creates a shading, which can be used by ps_shfill() or ps_shading_pattern().
The color of the shading can be in any color space except for pattern.
Parameters:
psdoc