Cairo
PHP Manual

The CairoAntialias class

(No version information available, might only be in Git)

简介

Enum class that specifies the type of antialiasing to do when rendering text or shapes.

类摘要

CairoAntialias {
/* 常量 */
const integer MODE_DEFAULT = 0 ;
const integer MODE_NONE = 1 ;
const integer MODE_GRAY = 2 ;
const integer MODE_SUBPIXEL = 3 ;
}

预定义常量

CairoAntialias::MODE_DEFAULT

Use the default antialiasing for the subsystem and target device

CairoAntialias::MODE_NONE

Use a bilevel alpha mask

CairoAntialias::MODE_GRAY

Perform single-color antialiasing (using shades of gray for black text on a white background, for example).

CairoAntialias::MODE_SUBPIXEL

Perform antialiasing by taking advantage of the order of subpixel elements on devices such as LCD panels.


Cairo
PHP Manual