map_polygons.c File Reference

#include <volume_io/internal_volume_io.h>
#include <bicpl/geom.h>
#include <bicpl/trans.h>

Include dependency graph for map_polygons.c:

Go to the source code of this file.

Functions
private Real	get_baricentric (Point *point, Point *p1, Point *p2, Point *p3)
private void	get_triangle_interpolation_weights (Point *point, Point points[], Real weights[])
private BOOLEAN	intersect_lines_2d (Real p1[], Real p2[], Real q1[], Real q2[], Real intersect[])
private Real	get_two_d_coordinate (Point *p, Point *p1, Point *p2, Point *q1, Point *q2)
private void	get_quadrilateral_interpolation_weights (Point *point, Point points[], Real weights[])
private void	get_arbitrary_polygon_interpolation_weights (Point *point, int n_points, Point points[], Real weights[])
public void	get_polygon_interpolation_weights (Point *point, int n_points, Point points[], Real weights[])
public void	map_point_between_polygons (polygons_struct *p1, int poly_index, Point *p1_point, polygons_struct *p2, Point *p2_point)
public Real	map_point_to_unit_sphere (polygons_struct *p, Point *point, polygons_struct *unit_sphere, Point *unit_sphere_point)
public void	map_unit_sphere_to_point (polygons_struct *unit_sphere, Point *unit_sphere_point, polygons_struct *p, Point *point)
private void	polygon_transform_point (object_struct *src_object, object_struct *dest_object, Point *src_point, Point *dest_point)
public void	polygon_transform_points (polygons_struct *src_polygons, polygons_struct *dest_polygons, int n_points, Point src_points[], Point dest_points[])
public void	map_sphere_to_uv (Real x, Real y, Real z, Real *u, Real *v)
public void	map_uv_to_sphere (Real u, Real v, Real *x, Real *y, Real *z)

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Function Documentation

private void get_arbitrary_polygon_interpolation_weights (  Point *  point, int  n_points, Point  points[], Real  weights[] )

Definition at line 284 of file map_polygons.c. References get_distance_to_line_segment(). Referenced by get_polygon_interpolation_weights().

private Real get_baricentric (  Point *  point, Point *  p1, Point *  p2, Point *  p3 )

Definition at line 40 of file map_polygons.c. Referenced by get_triangle_interpolation_weights().

public void get_polygon_interpolation_weights (  Point *  point, int  n_points, Point  points[], Real  weights[] )

Definition at line 339 of file map_polygons.c. References get_arbitrary_polygon_interpolation_weights(), get_quadrilateral_interpolation_weights(), and get_triangle_interpolation_weights(). Referenced by map_point_between_polygons().

private void get_quadrilateral_interpolation_weights (  Point *  point, Point  points[], Real  weights[] )

Definition at line 252 of file map_polygons.c. References get_two_d_coordinate(). Referenced by get_polygon_interpolation_weights().

private void get_triangle_interpolation_weights (  Point *  point, Point  points[], Real  weights[] )

Definition at line 79 of file map_polygons.c. References get_baricentric(). Referenced by get_polygon_interpolation_weights().

private Real get_two_d_coordinate (  Point *  p, Point *  p1, Point *  p2, Point *  q1, Point *  q2 )

Definition at line 157 of file map_polygons.c. References FALSE, intersect_lines_2d(), null_Vector(), and TRUE. Referenced by get_quadrilateral_interpolation_weights().

private BOOLEAN intersect_lines_2d (  Real  p1[], Real  p2[], Real  q1[], Real  q2[], Real  intersect[] )

Definition at line 106 of file map_polygons.c. References FALSE, and TRUE. Referenced by get_two_d_coordinate().

public void map_point_between_polygons (  polygons_struct *  p1, int  poly_index, Point *  p1_point, polygons_struct *  p2, Point *  p2_point )

Definition at line 377 of file map_polygons.c. References get_polygon_interpolation_weights(), get_polygon_points(), and MAX_POINTS_PER_POLYGON. Referenced by map_point_to_unit_sphere(), map_unit_sphere_to_point(), and polygon_transform_point().

public Real map_point_to_unit_sphere (  polygons_struct *  p, Point *  point, polygons_struct *  unit_sphere, Point *  unit_sphere_point )

Definition at line 427 of file map_polygons.c. References distance_between_points(), find_closest_polygon_point(), and map_point_between_polygons().

public void map_sphere_to_uv (  Real  x, Real  y, Real  z, Real *  u, Real *  v )

Definition at line 554 of file map_polygons.c. References compute_clockwise_rotation(), and y.

public void map_unit_sphere_to_point (  polygons_struct *  unit_sphere, Point *  unit_sphere_point, polygons_struct *  p, Point *  point )

Definition at line 459 of file map_polygons.c. References find_closest_polygon_point(), and map_point_between_polygons().

public void map_uv_to_sphere (  Real  u, Real  v, Real *  x, Real *  y, Real *  z )

Definition at line 572 of file map_polygons.c. References y.

private void polygon_transform_point (  object_struct *  src_object, object_struct *  dest_object, Point *  src_point, Point *  dest_point )

Definition at line 492 of file map_polygons.c. References find_closest_point_on_object(), get_polygons_ptr(), and map_point_between_polygons(). Referenced by polygon_transform_points().

public void polygon_transform_points (  polygons_struct *  src_polygons, polygons_struct *  dest_polygons, int  n_points, Point  src_points[], Point  dest_points[] )

Definition at line 525 of file map_polygons.c. References create_object(), get_polygons_ptr(), polygon_transform_point(), POLYGONS, and polygons_are_same_topology().

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