ps_shading
  Creates a shading for later use
  
 
  Description
  
   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
   )
  
  
   The color of the shading can be in any color space except for
   pattern.
  
  
 
  Parameters
  
   
    
     - 
psdoc
- 
      
       Resource identifier of the postscript file
       as returned by ps_new.
       
- 
type
- 
      
       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
       c1toc4(see ps_setcolor for their meaning).
 
- 
x0, x1, y0, y1
- 
      
       The coordinates x0,y0,x1,y1are the start and
       end point of the shading. If the type of shading is
       radial the two points are the middle points of
       a starting and ending circle.
 
- 
c1, c2, c3, c4
- 
      
       See ps_setcolor for their meaning.
       
- 
optlist
- 
      
       If the shading is of type radial the
       optlistmust also contain the parameters
       r0 and r1 with the radius of the
       start and end circle.
 
 
 
  Return Values
  
   Returns the identifier of the pattern  or FALSE on failure.
  
  
 
  See Also
  
   
    - ps_shading_pattern
- ps_shfill