(PHP 4 >= 4.0.5)
SWFShape::drawCurve — Draws a curve (relative)
$controldx
, float $controldy
, float $anchordx
, float $anchordy
[, float $targetdx
], float $targetdy
)此函数是实验性的。此函数的表象，包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担 。
swfshape::drawcurve() draws a quadratic curve
(using the current line style,set by swfshape::setline())
from the current pen position to the relative position
(anchorx,anchory)
using relative control point
(controlx,controly).
That is, head towards the control point, then smoothly turn to the
anchor point.
With 6 parameters, it draws a cubic bezier to point
(x+targetdx, x+targetdy)
with control points (x+controldx,
y+controldy) and
(x+anchordx, y+anchordy).