ps_shading
(PECL ps >= 1.3.0)
ps_shading — Creates a shading for later use
說明
resource
$psdoc,string
$type,float
$x0,float
$y0,float
$x1,float
$y1,float
$c1,float
$c2,float
$c3,float
$c4,string
$optlist): int|false
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.
參數
-
psdoc -
Resource identifier of the postscript file as returned by ps_new().
-
type -
The type of shading can be either
radialoraxial. Each shading starts with the current fill color and ends with the given color values passed in the parametersc1toc4(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 isradialthe 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
radialtheoptlistmust also contain the parametersr0andr1with the radius of the start and end circle.
返回值
Returns the identifier of the pattern 或者在失敗時返回 false.
參見
- ps_shading_pattern() - Creates a pattern based on a shading
- ps_shfill() - Fills an area with a shading