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/**********************************************************************
*
* PostGIS - Spatial Types for PostgreSQL
* http://postgis.net
*
* PostGIS is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* PostGIS is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with PostGIS. If not, see <http://www.gnu.org/licenses/>.
*
**********************************************************************
*
* Copyright 2011 Nicklas Avén
*
**********************************************************************/
#ifndef _MEASURES3D_H
#define _MEASURES3D_H 1
#include <float.h>
#include "measures.h"
#define DOT(u,v) ((u).x * (v).x + (u).y * (v).y + (u).z * (v).z)
#define VECTORLENGTH(v) sqrt(((v).x * (v).x) + ((v).y * (v).y) + ((v).z * (v).z))
/**
Structure used in distance-calculations
*/
typedef struct
{
double distance; /*the distance between p1 and p2*/
POINT3DZ p1;
POINT3DZ p2;
int mode; /*the direction of looking, if thedir = -1 then we look for 3dmaxdistance and if it is 1 then we look for 3dmindistance*/
int twisted; /*To preserve the order of incoming points to match the first and second point in 3dshortest and 3dlongest line*/
double tolerance; /*the tolerance for 3ddwithin and 3ddfullywithin*/
} DISTPTS3D;
typedef struct
{
double x,y,z;
}
VECTOR3D;
typedef struct
{
POINT3DZ pop; /*Point On Plane*/
VECTOR3D pv; /*Perpendicular normal vector*/
}
PLANE3D;
/*
Geometry returning functions
*/
LWGEOM * lw_dist3d_distancepoint(const LWGEOM *lw1, const LWGEOM *lw2,int srid,int mode);
LWGEOM * lw_dist3d_distanceline(const LWGEOM *lw1, const LWGEOM *lw2,int srid,int mode);
/*
Preprocessing functions
*/
int lw_dist3d_distribute_bruteforce(const LWGEOM *lwg1, const LWGEOM *lwg2, DISTPTS3D *dl);
int lw_dist3d_recursive(const LWGEOM *lwg1,const LWGEOM *lwg2, DISTPTS3D *dl);
int lw_dist3d_distribute_fast(const LWGEOM *lwg1, const LWGEOM *lwg2, DISTPTS3D *dl);
/*
Brute force functions
*/
int lw_dist3d_pt_ptarray(POINT3DZ *p, POINTARRAY *pa, DISTPTS3D *dl);
int lw_dist3d_point_point(LWPOINT *point1, LWPOINT *point2, DISTPTS3D *dl);
int lw_dist3d_point_line(LWPOINT *point, LWLINE *line, DISTPTS3D *dl);
int lw_dist3d_line_line(LWLINE *line1,LWLINE *line2 , DISTPTS3D *dl);
int lw_dist3d_point_poly(LWPOINT *point, LWPOLY *poly, DISTPTS3D *dl);
int lw_dist3d_line_poly(LWLINE *line, LWPOLY *poly, DISTPTS3D *dl);
int lw_dist3d_poly_poly(LWPOLY *poly1, LWPOLY *poly2, DISTPTS3D *dl);
int lw_dist3d_ptarray_ptarray(POINTARRAY *l1, POINTARRAY *l2,DISTPTS3D *dl);
int lw_dist3d_seg_seg(POINT3DZ *A, POINT3DZ *B, POINT3DZ *C, POINT3DZ *D, DISTPTS3D *dl);
int lw_dist3d_pt_pt(POINT3DZ *p1, POINT3DZ *p2, DISTPTS3D *dl);
int lw_dist3d_pt_seg(POINT3DZ *p, POINT3DZ *A, POINT3DZ *B, DISTPTS3D *dl);
int lw_dist3d_pt_poly(POINT3DZ *p, LWPOLY *poly, PLANE3D *plane,POINT3DZ *projp, DISTPTS3D *dl);
int lw_dist3d_ptarray_poly(POINTARRAY *pa, LWPOLY *poly, PLANE3D *plane, DISTPTS3D *dl);
double project_point_on_plane(POINT3DZ *p, PLANE3D *pl, POINT3DZ *p0);
int define_plane(POINTARRAY *pa, PLANE3D *pl);
int pt_in_ring_3d(const POINT3DZ *p, const POINTARRAY *ring,PLANE3D *plane);
/*
Helper functions
*/
#endif /* !defined _MEASURES3D_H */
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