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Add vectsubtract() and rectinside()

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1371 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2008-12-01 15:28:31 +00:00
parent 676c0e2798
commit 7322ee4547
4 changed files with 195 additions and 2 deletions
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23
include/nuttx/nxglib.h
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@ -351,6 +351,18 @@ EXTERN void nxgl_vectoradd(FAR struct nxgl_point_s *dest,
FAR const struct nxgl_point_s *v1,
FAR const struct nxgl_point_s *v2);
/****************************************************************************
* Name: nxgl_vectorsubtract
*
* Description:
* Add subtract vector v2 from vector v1 and return the result in vector dest
*
****************************************************************************/
EXTERN void nxgl_vectorsubtract(FAR struct nxgl_point_s *dest,
FAR const struct nxgl_point_s *v1,
FAR const struct nxgl_point_s *v2);
/****************************************************************************
* Name: nxgl_rectintersect
*
@ -401,6 +413,17 @@ EXTERN void nxgl_nonintersecting(FAR struct nxgl_rect_s result[4],
EXTERN boolean nxgl_rectoverlap(FAR struct nxgl_rect_s *rect1,
FAR struct nxgl_rect_s *rect2);
/****************************************************************************
* Name: nxgl_rectinside
*
* Description:
* Return TRUE if the point pt lies within rect.
*
****************************************************************************/
EXTERN boolean nxgl_rectinside(FAR const struct nxgl_rect_s *rect,
FAR const struct nxgl_point_s *pt);
/****************************************************************************
* Name: nxgl_nullrect
*