略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: ps_arc

2024-12-20

ps_arc

(PECL ps >= 1.1.0)

ps_arcDraws an arc counterclockwise

说明

ps_arc(
    resource $psdoc,
    float $x,
    float $y,
    float $radius,
    float $alpha,
    float $beta
): bool

Draws a portion of a circle with at middle point at (x, y). The arc starts at an angle of alpha and ends at an angle of beta. It is drawn counterclockwise (use ps_arcn() to draw clockwise). The subpath added to the current path starts on the arc at angle alpha and ends on the arc at angle beta.

参数

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

alpha

The start angle given in degrees.

beta

The end angle given in degrees.

返回值

成功时返回 true, 或者在失败时返回 false

参见

add a noteadd a note

User Contributed Notes

There are no user contributed notes for this page.

官方地址:https://www.php.net/manual/en/function.ps-arc.php

北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3