CairoContext::getCurrentPoint
cairo_get_current_point
(PECL cairo >= 0.1.0)
CairoContext::getCurrentPoint -- cairo_get_current_point — The getCurrentPoint purpose
설명
객체 기반 형식
절차식 형식
Gets the current point of the current path, which is conceptually the final point reached by the path so far.
The current point is returned in the user-space coordinate system. If there is no defined current point or if cr is in an error status, x and y will both be set to 0.0. It is possible to check this in advance with CairoContext::hasCurrentPoint().
Most path construction functions alter the current point. See the following for details on how they affect the current point: CairoContext::newPath(), CairoContext::newSubPath(), CairoContext::appendPath(), CairoContext::closePath(), CairoContext::moveTo(), CairoContext::lineTo(), CairoContext::curveTo(), CairoContext::relMoveTo(), CairoContext::relLineTo(), CairoContext::relCurveTo(), CairoContext::arc(), CairoContext::arcNegative(), CairoContext::rectangle(), CairoContext::textPath(), CairoContext::glyphPath().
Some functions use and alter the current point but do not otherwise change current path: CairoContext::showText().
Some functions unset the current path and as a result, current point: CairoContext::fill(), CairoContext::stroke().
반환값
An array containing the x (index 0) and y (index 1) coordinates of the current point.
예제
Example #1 객체 기반 형식
<?php
$s = new CairoImageSurface(CairoFormat::ARGB32, 100, 100);
$c = new CairoContext($s);
$c->moveTo(10, 10);
var_dump($c->getCurrentPoint());
?>
위 예제의 출력 예시:
array(2) {
[0]=>
float(10)
[1]=>
float(10)
}
Example #2 절차식 형식
<?php
$s = cairo_image_surface_create(CAIRO_SURFACE_TYPE_IMAGE, 100, 100);
$c = cairo_create($s);
cairo_move_to($c, 10, 10);
var_dump(cairo_get_current_point($c));
?>
위 예제의 출력 예시:
array(2) {
[0]=>
float(10)
[1]=>
float(10)
}
참고
- CairoContext::moveTo() - The moveTo purpose
- CairoContext::hasCurrentPoint() - The hasCurrentPoint purpose
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