Draws a circle

ps_circle

(PECL ps >= 1.1.0)

ps_circleDraws a circle

說明

ps_circle(
    resource $psdoc,
    float $x,
    float $y,
    float $radius
): bool

Draws a circle with its middle point at (x, y). The circle starts and ends at position (x+radius, y). If this function is called outside a path it will start a new path. If it is called within a path it will add the circle as a subpath. If the last drawing operation does not end in point (x+radius, y) then there will be a gap in the path.

參數

psdoc

Resource identifier of the postscript file as returned by ps_new().

x

The x-coordinate of the circle's middle point.

y

The y-coordinate of the circle's middle point.

radius

The radius of the circle

返回值

成功時返回 true, 或者在失敗時返回 false

參見

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