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# ps_curveto

(PECL)

ps_curveto -- Draws a curve

## 说明

bool ps_curveto ( resource 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.

## 参数

`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.

## 返回值

如果成功则返回 `TRUE`，失败则返回 `FALSE`。

## 参见

ps_lineto()

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