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| author | rodri <rgl@antares-labs.eu> | 2023-01-27 22:57:21 +0000 |
|---|---|---|
| committer | rodri <rgl@antares-labs.eu> | 2023-01-27 22:57:21 +0000 |
| commit | fdeaa2423c582df8d9e9ae6b0e26d386b5531262 (patch) | |
| tree | 26762f0636448354a5c8e6c62756009120dd353e /point.c | |
| parent | 278c3d3be924246488226ae89e67616955dce661 (diff) | |
| download | libgeometry-fdeaa2423c582df8d9e9ae6b0e26d386b5531262.tar.gz libgeometry-fdeaa2423c582df8d9e9ae6b0e26d386b5531262.tar.bz2 libgeometry-fdeaa2423c582df8d9e9ae6b0e26d386b5531262.zip | |
bring the slerp function, make ptinpoly public and clean some of the code.
Diffstat (limited to 'point.c')
| -rw-r--r-- | point.c | 10 |
1 files changed, 4 insertions, 6 deletions
@@ -43,8 +43,7 @@ divpt2(Point2 p, double s) Point2 lerp2(Point2 a, Point2 b, double t) { - if(t < 0) t = 0; - if(t > 1) t = 1; + t = fclamp(t, 0, 1); return Pt2( flerp(a.x, b.x, t), flerp(a.y, b.y, t), @@ -78,7 +77,7 @@ normvec2(Point2 v) /* * the edge function, from: * - * Juan Pineda, A Parallel Algorithm for Polygon Rasterization, + * Juan Pineda, “A Parallel Algorithm for Polygon Rasterization”, * Computer Graphics, Vol. 22, No. 8, August 1988 */ int @@ -97,7 +96,7 @@ edgeptcmp(Point2 e0, Point2 e1, Point2 p) } /* - * algorithm by W. Randolph Franklin + * (PNPOLY) algorithm by W. Randolph Franklin */ int ptinpoly(Point2 p, Point2 *pts, ulong npts) @@ -152,8 +151,7 @@ divpt3(Point3 p, double s) Point3 lerp3(Point3 a, Point3 b, double t) { - if(t < 0) t = 0; - if(t > 1) t = 1; + t = fclamp(t, 0, 1); return Pt3( flerp(a.x, b.x, t), flerp(a.y, b.y, t), |