Cairo
PHP Manual

The CairoAntialias class

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 CairoAntialias::MODE_DEFAULT = 0 ;
const integer CairoAntialias::MODE_NONE = 1 ;
const integer CairoAntialias::MODE_GRAY = 2 ;
const integer CairoAntialias::MODE_SUBPIXEL = 3 ;
}

预定义常量

CairoAntialias Node Types

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