ps_shading
(PECL ps:1.3.0-1.3.5)
ps_shading — Creates a shading for later use
说明
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.
参数
-
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
c1
to c4
(see ps_setcolor() for their meaning).
-
x0, x1, y0, y1
-
The coordinates x0
, y0
,
x1
, y1
are 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
optlist
must also contain the parameters
r0 and r1 with the radius of the
start and end circle.
返回值
Returns the identifier of the pattern or FALSE in case of an error.