PostGIS 3.0.6dev-r@@SVN_REVISION@@
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◆ lw_dist3d_line_tri()

int lw_dist3d_line_tri ( LWLINE line,
LWTRIANGLE tri,
DISTPTS3D dl 
)

line to triangle calculation

Definition at line 820 of file measures3d.c.

821{
822 PLANE3D plane;
823
824 if (dl->mode == DIST_MAX)
825 return lw_dist3d_ptarray_ptarray(line->points, tri->points, dl);
826
827 /* if triangle does not define a plane: Return distance line to line */
828 if (!define_plane(tri->points, &plane))
829 return lw_dist3d_ptarray_ptarray(line->points, tri->points, dl);
830
831 return lw_dist3d_ptarray_tri(line->points, tri, &plane, dl);
832}
int define_plane(POINTARRAY *pa, PLANE3D *pl)
int lw_dist3d_ptarray_tri(POINTARRAY *pa, LWTRIANGLE *tri, PLANE3D *plane, DISTPTS3D *dl)
Computes pointarray to triangle distance.
int lw_dist3d_ptarray_ptarray(POINTARRAY *l1, POINTARRAY *l2, DISTPTS3D *dl)
Finds all combinations of segments between two pointarrays.
#define DIST_MAX
Definition measures.h:43
POINTARRAY * points
Definition liblwgeom.h:469
POINTARRAY * points
Definition liblwgeom.h:481

References define_plane(), DIST_MAX, lw_dist3d_ptarray_ptarray(), lw_dist3d_ptarray_tri(), DISTPTS3D::mode, LWLINE::points, and LWTRIANGLE::points.

Referenced by lw_dist3d_distribute_bruteforce().

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