#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include "../postgis_config.h"
#include "lwgeom_log.h"
#include "liblwgeom_internal.h"

Include dependency graph for lwstroke.c:

Go to the source code of this file.

Functions
LWGEOM *	pta_unstroke (const POINTARRAY *points, int32_t srid)

LWGEOM *	lwline_unstroke (const LWLINE *line)

LWGEOM *	lwpolygon_unstroke (const LWPOLY *poly)

LWGEOM *	lwmline_unstroke (const LWMLINE *mline)

LWGEOM *	lwmpolygon_unstroke (const LWMPOLY *mpoly)

LWGEOM *	lwcollection_unstroke (const LWCOLLECTION *c)

LWGEOM *	lwgeom_unstroke (const LWGEOM *geom)

int	lwgeom_has_arc (const LWGEOM *geom)

static double	interpolate_arc (double angle, double a1, double a2, double a3, double zm1, double zm2, double zm3)

static double	angle_increment_using_segments_per_quad (double tol)

static double	angle_increment_using_max_deviation (double max_deviation, double radius)

static double	angle_increment_using_max_angle (double tol)

static int	lwarc_linearize (POINTARRAY to, const POINT4D p1, const POINT4D p2, const POINT4D p3, double tol, LW_LINEARIZE_TOLERANCE_TYPE tolerance_type, int flags)
	Segmentize an arc.

static LWLINE *	lwcircstring_linearize (const LWCIRCSTRING *icurve, double tol, LW_LINEARIZE_TOLERANCE_TYPE tolerance_type, int flags)

static LWLINE *	lwcompound_linearize (const LWCOMPOUND *icompound, double tol, LW_LINEARIZE_TOLERANCE_TYPE tolerance_type, int flags)

static LWPOLY *	lwcurvepoly_linearize (const LWCURVEPOLY *curvepoly, double tol, LW_LINEARIZE_TOLERANCE_TYPE tolerance_type, int flags)

LWPOLY *	lwcurvepoly_stroke (const LWCURVEPOLY *curvepoly, uint32_t perQuad)

static LWMLINE *	lwmcurve_linearize (const LWMCURVE *mcurve, double tol, LW_LINEARIZE_TOLERANCE_TYPE type, int flags)

static LWMPOLY *	lwmsurface_linearize (const LWMSURFACE *msurface, double tol, LW_LINEARIZE_TOLERANCE_TYPE type, int flags)

static LWCOLLECTION *	lwcollection_linearize (const LWCOLLECTION *collection, double tol, LW_LINEARIZE_TOLERANCE_TYPE type, int flags)

LWGEOM *	lwcurve_linearize (const LWGEOM *geom, double tol, LW_LINEARIZE_TOLERANCE_TYPE type, int flags)

LWGEOM *	lwgeom_stroke (const LWGEOM *geom, uint32_t perQuad)

static double	lw_arc_angle (const POINT2D a, const POINT2D b, const POINT2D *c)
	Return ABC angle in radians TODO: move to lwalgorithm.

static int	pt_continues_arc (const POINT4D a1, const POINT4D a2, const POINT4D a3, const POINT4D b)
	Returns LW_TRUE if b is on the arc formed by a1/a2/a3, but not within that portion already described by a1/a2/a3.

static LWGEOM *	linestring_from_pa (const POINTARRAY *pa, int32_t srid, int start, int end)

static LWGEOM *	circstring_from_pa (const POINTARRAY *pa, int32_t srid, int start, int end)

static LWGEOM *	geom_from_pa (const POINTARRAY *pa, int32_t srid, int is_arc, int start, int end)

Functions