CairoMatrix::initIdentity()

(PECL cairo >= 0.1.0)

Creates a new identity matrix

说明

面向对象风格(method):

publicstaticCairoMatrix::initIdentity(void): void

过程化风格:

cairo_matrix_init_identity(void): object

Creates a new matrix that is an identity transformation. An identity transformation means the source data is copied into the destination data without change

参数

此函数没有参数。

返回值

Returns a new CairoMatrix object that can be used with surfaces, contexts, and patterns.

范例

Example #1 面向对象风格

<?php
/* Create a new Matrix */
$matrix = CairoMatrix::initIdentity();
?>

Example #2 过程化风格

<?php
/* Create a new Matrix */
$matrix = cairo_matrix_init_identity();
?>

参见

• CairoMatrix::__construct() Creates a new CairoMatrix object
• CairoMatrix::initRotate() Creates a new rotated matrix
• CairoMatrix::initScale() Creates a new scaling matrix
• CairoMatrix::initTranslate() Creates a new translation matrix