geometry2d.h

Description:

Defines attributes of 2D geometries (including points, lines, rectangles, and polygons) of the lightweight graphics system and provides functions for performing operations on the geometries.

Since:

1.0

Version:

1.0

Function Name	Description
OHOS::Intersect (const Line &a, const Line &b, Vector2< int16_t > &out)	bool Checks whether line segment a and line segment b intersect, and returns the intersection point (if available).
(const Line &a, const Line &b)	Chekcs whether line segment a and line segment b intersect.
OHOS::Clip (Polygon &poly, const Line &line)	void Clips a polygon by using a line segment.
(const Rect &clipRect, const Polygon &polygon)	Polygon Implements Sutherland-Hodgman, an algorithm used for clipping polygons.
(const Line &line, const Polygon &poly, Vector2< int16_t > pOut, uint8_t pNum)	void Clips a polygon by using a line segment and obtains the intersections.