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(PECL ps >= 1.1.0)
ps_curveto — Draws a curve
$psdoc
, float $x1
, float $y1
, float $x2
, float $y2
, float $x3
, float $y3
)Add a section of a cubic Bézier curve described by the three given control points to the current path.
psdoc Resource identifier of the postscript file as returned by ps_new() .
x1 x-coordinate of first control point.
y1 y-coordinate of first control point.
x2 x-coordinate of second control point.
y2 y-coordinate of second control point.
x3 x-coordinate of third control point.
y3 y-coordinate of third control point.
成功时返回 TRUE , 或者在失败时返回 FALSE 。