CairoContext::copyPath
cairo_copy_path
(PECL cairo >= 0.1.0)
CairoContext::copyPath -- cairo_copy_path — Creates a copy of the current path
说明
面向对象风格 (method):
public CairoContext::copyPath ( void ) : CairoPath过程化风格:
cairo_copy_path ( CairoContext$context
) : CairoPath
Creates a copy of the current path and returns it to the user as a CairoPath. See CairoPath for hints on how to iterate over the returned data structure.
This function will always return a valid CairoPath object, but the result will have no data, if either of the following conditions hold:
1. If there is insufficient memory to copy the path. In this case CairoPath->status will be set to CAIRO_STATUS_NO_MEMORY. 2. Ifcontext
is already in an error state.
In this case CairoPath->status will contain the same status that would be returned by
cairo_status().
In either case, CairoPath->status will be set to CAIRO_STATUS_NO_MEMORY
(regardless of what the error status in cr might have been).
参数
context
A valid CairoContext object created with CairoContext::__construct() or cairo_create()
返回值
A copy of the current CairoPath in the context
范例
Example #1 面向对象风格
<?php
$surface = new CairoImageSurface(CairoFormat::ARGB32, 50, 50);
$context = new CairoContext($surface);
var_dump($context->copyPath())
?>
以上例程的输出类似于:
object(CairoPath)#3 (0) { }
Example #2 过程化风格
<?php
$surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 50, 50);
$context = cairo_create($surface);
var_dump(cairo_copy_path($context));
?>
以上例程的输出类似于:
object(CairoPath)#3 (0) { }
参见
CairoContext::closePath() - Closes the current path
User Contributed Notes
There are no user contributed notes for this page.官方地址:https://www.php.net/manual/en/cairocontext.copypath.php