segment.c File Reference

#include "gts.h"

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Functions
static void	segment_destroy (GtsObject *object)
static void	segment_class_init (GtsObjectClass *klass)
static void	segment_init (GtsSegment *segment)
GtsSegmentClass *	gts_segment_class (void)
GtsSegment *	gts_segment_new (GtsSegmentClass *klass, GtsVertex *v1, GtsVertex *v2)
GtsSegment *	gts_segment_is_duplicate (GtsSegment *s)
GtsIntersect	gts_segments_are_intersecting (GtsSegment *s1, GtsSegment *s2)
GtsVertex *	gts_segment_midvertex (GtsSegment *s, GtsVertexClass *klass)
GSList *	gts_segments_from_vertices (GSList *vertices)
gboolean	gts_segment_is_ok (GtsSegment *s)

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Function Documentation

GtsSegmentClass* gts_segment_class

(

void

)

gts_segment_class:

Returns: the GtsSegmentClass.

Definition at line 56 of file segment.c.

References gts_object_class(), gts_object_class_new(), segment_class_init(), and segment_init().

Referenced by gts_edge_class(), and segment_destroy().

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GtsSegment* gts_segment_is_duplicate

(

GtsSegment *

s

)

gts_segment_is_duplicate: : a GtsSegment.

Returns: the first GtsSegment different from which shares the same endpoints or NULL if there is none.

Definition at line 110 of file segment.c.

References _GtsVertex::segments, _GtsSegment::v1, and _GtsSegment::v2.

Referenced by gts_segment_is_ok(), gts_split_collapse(), and stats_foreach_edge().

gboolean gts_segment_is_ok

(

GtsSegment *

s

)

gts_segment_is_ok: : a GtsSegment.

Returns: TRUE if is not degenerate (i.e. ->v1 != ->v2) and not duplicate, FALSE otherwise.

Definition at line 226 of file segment.c.

References FALSE, GTS_OBJECT, gts_segment_is_duplicate(), TRUE, _GtsSegment::v1, and _GtsSegment::v2.

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GtsVertex* gts_segment_midvertex	(	GtsSegment *	s,
		GtsVertexClass *	klass
	)

gts_segment_midvertex: : a GtsSegment. : a GtsVertexClass to be used for the new vertex.

Returns: a new GtsVertex, midvertex of .

Definition at line 175 of file segment.c.

References GTS_POINT, gts_vertex_new(), _GtsSegment::v1, _GtsSegment::v2, _GtsPoint::x, _GtsPoint::y, and _GtsPoint::z.

Referenced by gts_psurface_new(), gts_surface_coarsen(), gts_surface_refine(), and split_edge().

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GtsSegment* gts_segment_new	(	GtsSegmentClass *	klass,
		GtsVertex *	v1,
		GtsVertex *	v2
	)

gts_segment_new: : a GtsSegmentClass. : a GtsVertex. : another GtsVertex different from .

Returns: a new GtsSegment linking and .

Definition at line 85 of file segment.c.

References GTS_OBJECT_CLASS, gts_object_new(), GTS_SEGMENT, s, _GtsVertex::segments, _GtsSegment::v1, and _GtsSegment::v2.

Referenced by gts_edge_new().

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GtsIntersect gts_segments_are_intersecting	(	GtsSegment *	s1,
		GtsSegment *	s2
	)

gts_segments_are_intersecting: : a GtsSegment. : a GtsSegment.

Returns: GTS_IN if and are intersecting, GTS_ON if one of the endpoints of (resp. ) lies on (resp. ), GTS_OUT otherwise.

Definition at line 144 of file segment.c.

References FALSE, GTS_IN, GTS_ON, GTS_OUT, GTS_POINT, gts_point_orientation(), _GtsSegment::v1, and _GtsSegment::v2.

Referenced by build_cdt().

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GSList* gts_segments_from_vertices

(

GSList *

vertices

)

gts_segments_from_vertices: : a list of GtsVertex.

Returns: a list of unique GtsSegment which have one of their vertices in .

Definition at line 196 of file segment.c.

References GTS_VERTEX, hash(), and s.

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static void segment_class_init

(

GtsObjectClass *

klass

)

[static]

Definition at line 41 of file segment.c.

References _GtsObjectClass::destroy, and segment_destroy().

Referenced by gts_segment_class().

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static void segment_destroy

(

GtsObject *

object

)

[static]

Definition at line 22 of file segment.c.

References gts_allow_floating_vertices, GTS_OBJECT, GTS_OBJECT_CLASS, gts_object_destroy(), GTS_OBJECT_DESTROYED, GTS_SEGMENT, gts_segment_class(), _GtsVertex::segments, _GtsSegment::v1, and _GtsSegment::v2.

Referenced by segment_class_init().

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static void segment_init

(

GtsSegment *

segment

)

[static]

Definition at line 46 of file segment.c.

References _GtsSegment::v1, and _GtsSegment::v2.

Referenced by gts_segment_class().