/* GTS - Library for the manipulation of triangulated surfaces
* Copyright (C) 1999 St�phane Popinet
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GTS_H__
#define __GTS_H__
#include <stdio.h>
#include <glib.h>
#ifndef NATIVE_WIN32
# include <gtsconfig.h>
#endif
#ifdef GTS_COMPILATION
# include "config.h"
#endif /* not GTS_COMPILATION */
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* Added based on glib.h by M J Loehr 01/01/01 */
/* GTS version.
* we prefix variable declarations so they can
* properly get exported in windows dlls.
*/
#ifdef NATIVE_WIN32
# ifdef GTS_COMPILATION
# define GTS_C_VAR __declspec(dllexport)
# else /* not GTS_COMPILATION */
# define GTS_C_VAR extern __declspec(dllimport)
# endif /* not GTS_COMPILATION */
#else /* not NATIVE_WIN32 */
# define GTS_C_VAR extern
#endif /* not NATIVE_WIN32 */
GTS_C_VAR const guint gts_major_version;
GTS_C_VAR const guint gts_minor_version;
GTS_C_VAR const guint gts_micro_version;
GTS_C_VAR const guint gts_interface_age;
GTS_C_VAR const guint gts_binary_age;
#define GTS_CHECK_VERSION(major,minor,micro) \
(gts_major_version > (major) || \
(gts_major_version == (major) && gts_minor_version > (minor)) || \
(gts_major_version == (major) && gts_minor_version == (minor) && \
gts_micro_version >= (micro)))
#define GTS_COMMENTS "#!"
#define GTS_MAINTAINER "popinet@users.sourceforge.net"
/* Class declarations for base types */
typedef struct _GtsObjectClassInfo GtsObjectClassInfo;
typedef struct _GtsObject GtsObject;
typedef struct _GtsObjectClass GtsObjectClass;
typedef struct _GtsPoint GtsPoint;
typedef struct _GtsPointClass GtsPointClass;
typedef struct _GtsVertex GtsVertex;
typedef struct _GtsVertexClass GtsVertexClass;
typedef struct _GtsSegment GtsSegment;
typedef struct _GtsSegmentClass GtsSegmentClass;
typedef struct _GtsEdge GtsEdge;
typedef struct _GtsEdgeClass GtsEdgeClass;
typedef struct _GtsTriangle GtsTriangle;
typedef struct _GtsTriangleClass GtsTriangleClass;
typedef struct _GtsFace GtsFace;
typedef struct _GtsFaceClass GtsFaceClass;
typedef struct _GtsBBox GtsBBox;
typedef struct _GtsBBoxClass GtsBBoxClass;
typedef struct _GtsSurface GtsSurface;
typedef struct _GtsSurfaceClass GtsSurfaceClass;
typedef void (*GtsObjectClassInitFunc) (GtsObjectClass * objclass);
typedef void (*GtsObjectInitFunc) (GtsObject * obj);
typedef void (*GtsArgSetFunc) (GtsObject * obj);
typedef void (*GtsArgGetFunc) (GtsObject * obj);
typedef gdouble GtsVector[3];
typedef gdouble GtsVector4[4];
typedef GtsVector4 GtsMatrix;
/**
* GtsKeyFunc:
* @item: A pointer to an item to be stored in the heap.
* @data: User data passed to gts_eheap_new().
*
* Returns: the value of the key for the given item.
*/
typedef gdouble (*GtsKeyFunc) (gpointer item,
gpointer data);
typedef enum
{
GTS_OUT = -1,
GTS_ON = 0,
GTS_IN = 1
} GtsIntersect;
typedef struct _GtsColor GtsColor;
struct _GtsColor {
gfloat r, g, b;
};
typedef gint (*GtsFunc) (gpointer item,
gpointer data);
/* misc.c */
typedef struct _GtsFile GtsFile;
typedef enum {
GTS_NONE = 1 << 8,
GTS_INT = 1 << 9,
GTS_UINT = 1 << 10,
GTS_FLOAT = 1 << 11,
GTS_DOUBLE = 1 << 12,
GTS_STRING = 1 << 13,
GTS_FILE = 1 << 14,
GTS_ERROR = 1 << 15
} GtsTokenType;
struct _GtsFile {
FILE * fp;
gchar * s, * s1;
guint line, pos;
GString * token;
GtsTokenType type;
gchar * error;
guint curline, curpos;
guint scope, scope_max;
gint next_token;
gchar * delimiters;
gchar * comments;
gchar * tokens;
};
typedef struct _GtsFileVariable GtsFileVariable;
struct _GtsFileVariable {
GtsTokenType type;
gchar name[30];
gboolean unique;
gpointer data;
gboolean set;
guint line, pos;
};
GtsFile * gts_file_new (FILE * fp);
GtsFile * gts_file_new_from_string (const gchar * s);
void gts_file_verror (GtsFile * f,
const gchar * format,
va_list args);
void gts_file_error (GtsFile * f,
const gchar * format,
...);
gint gts_file_getc (GtsFile * f);
guint gts_file_read (GtsFile * f,
gpointer ptr,
guint size,
guint nmemb);
gint gts_file_getc_scope (GtsFile * f);
void gts_file_next_token (GtsFile * f);
void gts_file_first_token_after (GtsFile * f,
GtsTokenType type);
void gts_file_assign_start (GtsFile * f,
GtsFileVariable * vars);
GtsFileVariable * gts_file_assign_next (GtsFile * f,
GtsFileVariable * vars);
void gts_file_assign_variables (GtsFile * f,
GtsFileVariable * vars);
void gts_file_variable_error (GtsFile * f,
GtsFileVariable * vars,
const gchar * name,
const gchar * format,
...);
void gts_file_destroy (GtsFile * f);
/* Objects: object.c */
#ifdef GTS_CHECK_CASTS
# define GTS_OBJECT_CAST(obj, type, klass) ((type *) gts_object_check_cast (obj, klass))
# define GTS_OBJECT_CLASS_CAST(objklass, type, klass) ((type *) gts_object_class_check_cast (objklass, klass))
#else /* not GTS_CHECK_CASTS */
# define GTS_OBJECT_CAST(obj, type, klass) ((type *) (obj))
# define GTS_OBJECT_CLASS_CAST(objklass, type, klass) ((type *) (objklass))
#endif /* not GTS_CHECK_CASTS */
#define GTS_CLASS_NAME_LENGTH 40
#define GTS_OBJECT(obj) GTS_OBJECT_CAST (obj,\
GtsObject,\
gts_object_class ())
#define GTS_OBJECT_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsObjectClass,\
gts_object_class())
#define GTS_IS_OBJECT(obj) (gts_object_is_from_class (obj,\
gts_object_class ()))
typedef enum
{
GTS_DESTROYED = 1 << 0,
GTS_USER_FLAG = 1 /* user flags start from here */
} GtsObjectFlags;
#define GTS_OBJECT_FLAGS(obj) (GTS_OBJECT (obj)->flags)
#define GTS_OBJECT_DESTROYED(obj) ((GTS_OBJECT_FLAGS (obj) & GTS_DESTROYED) != 0)
#define GTS_OBJECT_SET_FLAGS(obj,flag) G_STMT_START{ (GTS_OBJECT_FLAGS (obj) |= (flag)); }G_STMT_END
#define GTS_OBJECT_UNSET_FLAGS(obj,flag) G_STMT_START{ (GTS_OBJECT_FLAGS (obj) &= ~(flag)); }G_STMT_END
struct _GtsObjectClassInfo {
gchar name[GTS_CLASS_NAME_LENGTH];
guint object_size;
guint class_size;
GtsObjectClassInitFunc class_init_func;
GtsObjectInitFunc object_init_func;
GtsArgSetFunc arg_set_func;
GtsArgGetFunc arg_get_func;
};
struct _GtsObject {
GtsObjectClass * klass;
gpointer reserved;
guint32 flags;
};
struct _GtsObjectClass {
GtsObjectClassInfo info;
GtsObjectClass * parent_class;
void (* clone) (GtsObject *, GtsObject *);
void (* destroy) (GtsObject *);
void (* read) (GtsObject **, GtsFile *);
void (* write) (GtsObject *, FILE *);
GtsColor (* color) (GtsObject *);
void (* attributes) (GtsObject *, GtsObject *);
};
gpointer gts_object_class_new (GtsObjectClass * parent_class,
GtsObjectClassInfo * info);
GtsObjectClass * gts_object_class (void);
gpointer gts_object_check_cast (gpointer object,
gpointer klass);
gpointer gts_object_class_check_cast (gpointer klass,
gpointer from);
G_INLINE_FUNC
gpointer gts_object_is_from_class (gpointer object,
gpointer klass);
G_INLINE_FUNC
gpointer gts_object_class_is_from_class (gpointer klass,
gpointer from);
#ifdef G_CAN_INLINE
G_INLINE_FUNC
gpointer gts_object_is_from_class (gpointer object,
gpointer klass)
{
GtsObjectClass * c;
g_return_val_if_fail (klass != NULL, NULL);
if (object == NULL)
return NULL;
c = ((GtsObject *) object)->klass;
g_return_val_if_fail (c != NULL, NULL);
while (c) {
if (c == klass)
return object;
c = c->parent_class;
}
return NULL;
}
G_INLINE_FUNC
gpointer gts_object_class_is_from_class (gpointer klass,
gpointer from)
{
GtsObjectClass * c;
g_return_val_if_fail (klass != NULL, NULL);
g_return_val_if_fail (from != NULL, NULL);
c = (GtsObjectClass *) klass;
while (c) {
if (c == from)
return klass;
c = c->parent_class;
}
return NULL;
}
#endif /* G_CAN_INLINE */
GtsObjectClass * gts_object_class_from_name (const gchar * name);
GtsObject * gts_object_new (GtsObjectClass * klass);
GtsObject * gts_object_clone (GtsObject * object);
void gts_object_attributes (GtsObject * object,
GtsObject * from);
void gts_object_init (GtsObject * object,
GtsObjectClass * klass);
void gts_object_reset_reserved (GtsObject * object);
void gts_object_destroy (GtsObject * object);
void gts_finalize (void);
/* Ranges: surface.c */
typedef struct _GtsRange GtsRange;
struct _GtsRange {
gdouble min, max, sum, sum2, mean, stddev;
guint n;
};
void gts_range_init (GtsRange * r);
void gts_range_reset (GtsRange * r);
void gts_range_add_value (GtsRange * r,
gdouble val);
void gts_range_update (GtsRange * r);
void gts_range_print (GtsRange * r,
FILE * fptr);
/* Points: point.c */
#define GTS_IS_POINT(obj) (gts_object_is_from_class (obj,\
gts_point_class ()))
#define GTS_POINT(obj) GTS_OBJECT_CAST (obj,\
GtsPoint,\
gts_point_class ())
#define GTS_POINT_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsPointClass,\
gts_point_class ())
struct _GtsPoint {
GtsObject object;
gdouble x, y, z; /* must be contiguous (cast to robust functions) */
};
struct _GtsPointClass {
GtsObjectClass parent_class;
gboolean binary;
};
GtsPointClass * gts_point_class (void);
GtsPoint * gts_point_new (GtsPointClass * klass,
gdouble x,
gdouble y,
gdouble z);
void gts_point_set (GtsPoint * p,
gdouble x,
gdouble y,
gdouble z);
#define gts_point_is_in_rectangle(p, p1, p2) ((p)->x >= (p1)->x &&\
(p)->x <= (p2)->x &&\
(p)->y >= (p1)->y &&\
(p)->y <= (p2)->y &&\
(p)->z >= (p1)->z &&\
(p)->z <= (p2)->z)
GtsPoint * gts_segment_triangle_intersection (GtsSegment * s,
GtsTriangle * t,
gboolean boundary,
GtsPointClass * klass);
void gts_point_transform (GtsPoint * p,
GtsMatrix * m);
gdouble gts_point_distance (GtsPoint * p1,
GtsPoint * p2);
gdouble gts_point_distance2 (GtsPoint * p1,
GtsPoint * p2);
gdouble gts_point_orientation_3d (GtsPoint * p1,
GtsPoint * p2,
GtsPoint * p3,
GtsPoint * p4);
gint gts_point_orientation_3d_sos (GtsPoint * p1,
GtsPoint * p2,
GtsPoint * p3,
GtsPoint * p4);
GtsIntersect gts_point_is_in_triangle (GtsPoint * p,
GtsTriangle * t);
gdouble gts_point_in_circle (GtsPoint * p,
GtsPoint * p1,
GtsPoint * p2,
GtsPoint * p3);
gdouble gts_point_in_triangle_circle (GtsPoint * p,
GtsTriangle * t);
gdouble gts_point_orientation (GtsPoint * p1,
GtsPoint * p2,
GtsPoint * p3);
gint gts_point_orientation_sos (GtsPoint * p1,
GtsPoint * p2,
GtsPoint * p3);
gdouble gts_point_segment_distance2 (GtsPoint * p,
GtsSegment * s);
gdouble gts_point_segment_distance (GtsPoint * p,
GtsSegment * s);
void gts_point_segment_closest (GtsPoint * p,
GtsSegment * s,
GtsPoint * closest);
gdouble gts_point_triangle_distance2 (GtsPoint * p,
GtsTriangle * t);
gdouble gts_point_triangle_distance (GtsPoint * p,
GtsTriangle * t);
void gts_point_triangle_closest (GtsPoint * p,
GtsTriangle * t,
GtsPoint * closest);
gboolean gts_point_is_inside_surface (GtsPoint * p,
GNode * tree,
gboolean is_open);
/* Vertices: vertex.c */
#define GTS_IS_VERTEX(obj) (gts_object_is_from_class (obj,\
gts_vertex_class ()))
#define GTS_VERTEX(obj) GTS_OBJECT_CAST (obj,\
GtsVertex,\
gts_vertex_class ())
#define GTS_VERTEX_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsVertexClass,\
gts_vertex_class ())
struct _GtsVertex {
GtsPoint p;
GSList * segments;
};
struct _GtsVertexClass {
GtsPointClass parent_class;
void (* intersection_attributes) (GtsVertex *,
GtsObject *,
GtsObject *);
};
GTS_C_VAR
gboolean gts_allow_floating_vertices;
GtsVertexClass * gts_vertex_class (void);
GtsVertex * gts_vertex_new (GtsVertexClass * klass,
gdouble x,
gdouble y,
gdouble z);
void gts_vertex_replace (GtsVertex * v,
GtsVertex * with);
gboolean gts_vertex_is_unattached (GtsVertex * v);
GtsSegment * gts_vertices_are_connected (GtsVertex * v1,
GtsVertex * v2);
GSList * gts_vertex_triangles (GtsVertex * v,
GSList * list);
GSList * gts_vertex_faces (GtsVertex * v,
GtsSurface * surface,
GSList * list);
GSList * gts_vertex_neighbors (GtsVertex * v,
GSList * list,
GtsSurface * surface);
GSList * gts_vertices_from_segments (GSList * segments);
gboolean gts_vertex_is_boundary (GtsVertex * v,
GtsSurface * surface);
GList * gts_vertices_merge (GList * vertices,
gdouble epsilon,
gboolean (* check) (GtsVertex *, GtsVertex *));
GSList * gts_vertex_fan_oriented (GtsVertex * v,
GtsSurface * surface);
guint gts_vertex_is_contact (GtsVertex * v, gboolean sever);
/* GtsVertexNormal: Header */
typedef struct _GtsVertexNormal GtsVertexNormal;
struct _GtsVertexNormal {
/*< private >*/
GtsVertex parent;
/*< public >*/
GtsVector n;
};
#define GTS_VERTEX_NORMAL(obj) GTS_OBJECT_CAST (obj,\
GtsVertexNormal,\
gts_vertex_normal_class ())
#define GTS_IS_VERTEX_NORMAL(obj) (gts_object_is_from_class (obj,\
gts_vertex_normal_class ()))
GtsVertexClass * gts_vertex_normal_class (void);
/* GtsColorVertex: Header */
typedef struct _GtsColorVertex GtsColorVertex;
struct _GtsColorVertex {
/*< private >*/
GtsVertex parent;
/*< public >*/
GtsColor c;
};
#define GTS_COLOR_VERTEX(obj) GTS_OBJECT_CAST (obj,\
GtsColorVertex,\
gts_color_vertex_class ())
#define GTS_IS_COLOR_VERTEX(obj) (gts_object_is_from_class (obj,\
gts_color_vertex_class ()))
GtsVertexClass * gts_color_vertex_class (void);
/* Segments: segment.c */
#define GTS_IS_SEGMENT(obj) (gts_object_is_from_class (obj,\
gts_segment_class ()))
#define GTS_SEGMENT(obj) GTS_OBJECT_CAST (obj,\
GtsSegment,\
gts_segment_class ())
#define GTS_SEGMENT_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsSegmentClass,\
gts_segment_class ())
struct _GtsSegment {
GtsObject object;
GtsVertex * v1;
GtsVertex * v2;
};
struct _GtsSegmentClass {
GtsObjectClass parent_class;
};
GtsSegmentClass * gts_segment_class (void);
GtsSegment * gts_segment_new (GtsSegmentClass * klass,
GtsVertex * v1,
GtsVertex * v2);
#define gts_segment_connect(s, e1, e2) (((s)->v1 == e1 &&\
(s)->v2 == e2) || \
((s)->v1 == e2 &&\
(s)->v2 == e1))
#define gts_segments_are_identical(s1, s2) (((s1)->v1 == (s2)->v1 &&\
(s1)->v2 == (s2)->v2)\
||\
((s1)->v1 == (s2)->v2 &&\
(s1)->v2 == (s2)->v1))
#define gts_segments_touch(s1, s2) ((s1)->v1 == (s2)->v1 ||\
(s1)->v1 == (s2)->v2 ||\
(s1)->v2 == (s2)->v1 ||\
(s1)->v2 == (s2)->v2)
GtsIntersect gts_segments_are_intersecting (GtsSegment * s1,
GtsSegment * s2);
GtsSegment * gts_segment_is_duplicate (GtsSegment * s);
GtsVertex * gts_segment_midvertex (GtsSegment * s,
GtsVertexClass * klass);
GSList * gts_segments_from_vertices (GSList * vertices);
gboolean gts_segment_is_ok (GtsSegment * s);
/* Edges: edge.c */
#define GTS_IS_EDGE(obj) (gts_object_is_from_class (obj,\
gts_edge_class ()))
#define GTS_EDGE(obj) GTS_OBJECT_CAST (obj,\
GtsEdge,\
gts_edge_class ())
#define GTS_EDGE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsEdgeClass,\
gts_edge_class ())
struct _GtsEdge {
GtsSegment segment;
GSList * triangles;
};
struct _GtsEdgeClass {
GtsSegmentClass parent_class;
};
GTS_C_VAR
gboolean gts_allow_floating_edges;
GtsEdgeClass * gts_edge_class (void);
GtsEdge * gts_edge_new (GtsEdgeClass * klass,
GtsVertex * v1,
GtsVertex * v2);
/**
* gts_edge_is_unattached:
* @s: a #GtsEdge.
*
* Evaluates to %TRUE if no triangles uses @s as an edge, %FALSE otherwise.
*/
#define gts_edge_is_unattached(s) ((s)->triangles == NULL ? TRUE : FALSE)
GtsFace * gts_edge_has_parent_surface (GtsEdge * e,
GtsSurface * surface);
GtsFace * gts_edge_has_any_parent_surface (GtsEdge * e);
GtsFace * gts_edge_is_boundary (GtsEdge * e,
GtsSurface * surface);
void gts_edge_replace (GtsEdge * e,
GtsEdge * with);
GSList * gts_edges_from_vertices (GSList * vertices,
GtsSurface * parent);
guint gts_edge_face_number (GtsEdge * e,
GtsSurface * s);
gboolean gts_edge_collapse_is_valid (GtsEdge * e);
gboolean gts_edge_collapse_creates_fold (GtsEdge * e,
GtsVertex * v,
gdouble max);
GtsEdge * gts_edge_is_duplicate (GtsEdge * e);
GList * gts_edges_merge (GList * edges);
gboolean gts_edge_belongs_to_tetrahedron (GtsEdge * e);
guint gts_edge_is_contact (GtsEdge * e);
void gts_edge_swap (GtsEdge * e,
GtsSurface * s);
gboolean gts_edge_manifold_faces (GtsEdge * e,
GtsSurface * s,
GtsFace ** f1,
GtsFace ** f2);
/* Triangles: triangle.c */
#define GTS_IS_TRIANGLE(obj) (gts_object_is_from_class (obj,\
gts_triangle_class ()))
#define GTS_TRIANGLE(obj) GTS_OBJECT_CAST (obj,\
GtsTriangle,\
gts_triangle_class ())
#define GTS_TRIANGLE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsTriangleClass,\
gts_triangle_class ())
struct _GtsTriangle {
GtsObject object;
GtsEdge * e1;
GtsEdge * e2;
GtsEdge * e3;
};
struct _GtsTriangleClass {
GtsObjectClass parent_class;
};
GtsTriangleClass * gts_triangle_class (void);
void gts_triangle_set (GtsTriangle * triangle,
GtsEdge * e1,
GtsEdge * e2,
GtsEdge * e3);
GtsTriangle * gts_triangle_new (GtsTriangleClass * klass,
GtsEdge * e1,
GtsEdge * e2,
GtsEdge * e3);
#define gts_triangle_vertex(t) (GTS_SEGMENT (GTS_TRIANGLE (t)->e1)->v1 ==\
GTS_SEGMENT (GTS_TRIANGLE (t)->e2)->v1 || \
GTS_SEGMENT (GTS_TRIANGLE (t)->e1)->v2 ==\
GTS_SEGMENT (GTS_TRIANGLE (t)->e2)->v1 ? \
GTS_SEGMENT (GTS_TRIANGLE (t)->e2)->v2 :\
GTS_SEGMENT (GTS_TRIANGLE (t)->e2)->v1)
GtsVertex * gts_triangle_vertex_opposite (GtsTriangle * t,
GtsEdge * e);
GtsEdge * gts_triangle_edge_opposite (GtsTriangle * t,
GtsVertex * v);
gdouble gts_triangles_angle (GtsTriangle * t1,
GtsTriangle * t2);
gboolean gts_triangles_are_compatible (GtsTriangle * t1,
GtsTriangle * t2,
GtsEdge * e);
gdouble gts_triangle_area (GtsTriangle * t);
gdouble gts_triangle_perimeter (GtsTriangle * t);
gdouble gts_triangle_quality (GtsTriangle * t);
void gts_triangle_normal (GtsTriangle * t,
gdouble * x,
gdouble * y,
gdouble * z);
gdouble gts_triangle_orientation (GtsTriangle * t);
void gts_triangle_revert (GtsTriangle * t);
GSList * gts_triangles_from_edges (GSList * edges);
void gts_triangle_vertices_edges (GtsTriangle * t,
GtsEdge * e,
GtsVertex ** v1,
GtsVertex ** v2,
GtsVertex ** v3,
GtsEdge ** e1,
GtsEdge ** e2,
GtsEdge ** e3);
GtsTriangle * gts_triangle_enclosing (GtsTriangleClass * klass,
GSList * points,
gdouble scale);
guint gts_triangle_neighbor_number (GtsTriangle * t);
GSList * gts_triangle_neighbors (GtsTriangle * t);
GtsEdge * gts_triangles_common_edge (GtsTriangle * t1,
GtsTriangle * t2);
GtsTriangle * gts_triangle_is_duplicate (GtsTriangle * t);
GtsTriangle * gts_triangle_use_edges (GtsEdge * e1,
GtsEdge * e2,
GtsEdge * e3);
gboolean gts_triangle_is_ok (GtsTriangle * t);
void gts_triangle_vertices (GtsTriangle * t,
GtsVertex ** v1,
GtsVertex ** v2,
GtsVertex ** v3);
GtsPoint * gts_triangle_circumcircle_center (GtsTriangle * t,
GtsPointClass * point_class);
gboolean gts_triangles_are_folded (GSList * triangles,
GtsVertex * A, GtsVertex * B,
gdouble max);
GtsObject * gts_triangle_is_stabbed (GtsTriangle * t,
GtsPoint * p,
gdouble * orientation);
void gts_triangle_interpolate_height (GtsTriangle * t,
GtsPoint * p);
/* Faces: face.c */
#define GTS_IS_FACE(obj) (gts_object_is_from_class (obj,\
gts_face_class ()))
#define GTS_FACE(obj) GTS_OBJECT_CAST (obj,\
GtsFace,\
gts_face_class ())
#define GTS_FACE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsFaceClass,\
gts_face_class ())
struct _GtsFace {
GtsTriangle triangle;
GSList * surfaces;
};
struct _GtsFaceClass {
GtsTriangleClass parent_class;
};
GTS_C_VAR
gboolean gts_allow_floating_faces;
GtsFaceClass * gts_face_class (void);
GtsFace * gts_face_new (GtsFaceClass * klass,
GtsEdge * e1,
GtsEdge * e2,
GtsEdge * e3);
gboolean gts_face_has_parent_surface (GtsFace * f,
GtsSurface * s);
GSList * gts_faces_from_edges (GSList * edges,
GtsSurface * s);
guint gts_face_neighbor_number (GtsFace * f,
GtsSurface * s);
GSList * gts_face_neighbors (GtsFace * f,
GtsSurface * s);
void gts_face_foreach_neighbor (GtsFace * f,
GtsSurface * s,
GtsFunc func,
gpointer data);
gboolean gts_face_is_compatible (GtsFace * f,
GtsSurface * s);
/* Matrices: matrix.c */
#define gts_vector_cross(C,A,B) ((C)[0] = (A)[1]*(B)[2] - (A)[2]*(B)[1],\
(C)[1] = (A)[2]*(B)[0] - (A)[0]*(B)[2],\
(C)[2] = (A)[0]*(B)[1] - (A)[1]*(B)[0])
#define gts_vector_init(v, p1, p2) ((v)[0] = (p2)->x - (p1)->x,\
(v)[1] = (p2)->y - (p1)->y,\
(v)[2] = (p2)->z - (p1)->z)
#define gts_vector_scalar(v1, v2) ((v1)[0]*(v2)[0] +\
(v1)[1]*(v2)[1] +\
(v1)[2]*(v2)[2])
#define gts_vector_norm(v) (sqrt ((v)[0]*(v)[0] +\
(v)[1]*(v)[1] +\
(v)[2]*(v)[2]))
#define gts_vector_normalize(v) {\
gdouble __gts_n = gts_vector_norm (v);\
if (__gts_n > 0.) {\
(v)[0] /= __gts_n;\
(v)[1] /= __gts_n;\
(v)[2] /= __gts_n;\
}\
}
GtsMatrix * gts_matrix_new (gdouble a00, gdouble a01, gdouble a02, gdouble a03,
gdouble a10, gdouble a11, gdouble a12, gdouble a13,
gdouble a20, gdouble a21, gdouble a22, gdouble a23,
gdouble a30, gdouble a31, gdouble a32, gdouble a33);
void gts_matrix_assign (GtsMatrix * m,
gdouble a00, gdouble a01, gdouble a02, gdouble a03,
gdouble a10, gdouble a11, gdouble a12, gdouble a13,
gdouble a20, gdouble a21, gdouble a22, gdouble a23,
gdouble a30, gdouble a31, gdouble a32, gdouble a33);
GtsMatrix * gts_matrix_projection (GtsTriangle * t);
GtsMatrix * gts_matrix_transpose (GtsMatrix * m);
gdouble gts_matrix_determinant (GtsMatrix * m);
GtsMatrix * gts_matrix_inverse (GtsMatrix * m);
GtsMatrix * gts_matrix3_inverse (GtsMatrix * m);
void gts_matrix_print (GtsMatrix * m,
FILE * fptr);
guint gts_matrix_compatible_row (GtsMatrix * A,
GtsVector b,
guint n,
GtsVector A1,
gdouble b1);
guint gts_matrix_quadratic_optimization (GtsMatrix * A,
GtsVector b,
guint n,
GtsMatrix * H,
GtsVector c);
GtsMatrix * gts_matrix_product (GtsMatrix * m1,
GtsMatrix * m2);
GtsMatrix * gts_matrix_zero (GtsMatrix * m);
GtsMatrix * gts_matrix_identity (GtsMatrix * m);
GtsMatrix * gts_matrix_scale (GtsMatrix * m,
GtsVector s);
GtsMatrix * gts_matrix_translate (GtsMatrix * m,
GtsVector t);
GtsMatrix * gts_matrix_rotate (GtsMatrix * m,
GtsVector r,
gdouble angle);
void gts_matrix_destroy (GtsMatrix * m);
void gts_vector_print (GtsVector v,
FILE * fptr);
void gts_vector4_print (GtsVector4 v,
FILE * fptr);
/* Kdtrees: kdtree.c */
#define gts_kdtree_destroy(tree) g_node_destroy(tree)
GNode * gts_kdtree_new (GPtrArray * points,
int (*compare)
(const void *,
const void *));
GSList * gts_kdtree_range (GNode * tree,
GtsBBox * bbox,
int (*compare)
(const void *,
const void *));
/* Bboxtrees: bbtree.c */
/**
* GtsBBTreeTraverseFunc:
* @bb1: a #GtsBBox.
* @bb2: another #GtsBBox.
* @data: user data passed to the function.
*
* User function called for each pair of overlapping bounding
* boxes. See gts_bb_tree_traverse_overlapping().
*/
typedef void (*GtsBBTreeTraverseFunc) (GtsBBox * bb1,
GtsBBox * bb2,
gpointer data);
/**
* GtsBBoxDistFunc:
* @p: a #GtsPoint.
* @bounded: an object bounded by a #GtsBBox.
*
* User function returning the (minimum) distance between the object
* defined by @bounded and point @p.
*
* Returns: the distance between @p and @bounded.
*/
typedef gdouble (*GtsBBoxDistFunc) (GtsPoint * p,
gpointer bounded);
/**
* GtsBBoxClosestFunc:
* @p: a #GtsPoint.
* @bounded: an object bounded by a #GtsBBox.
*
* User function returning a #GtsPoint belonging to the object defined
* by @bounded and closest to @p.
*
* Returns: a #GtsPoint.
*/
typedef GtsPoint * (*GtsBBoxClosestFunc) (GtsPoint * p,
gpointer bounded);
/**
* GTS_IS_BBOX:
* @obj: a #GtsObject.
*
* Evaluates to %TRUE if @obj is a #GtsBBox, %FALSE otherwise.
*/
#define GTS_IS_BBOX(obj) (gts_object_is_from_class (obj,\
gts_bbox_class ()))
/**
* GTS_BBOX:
* @obj: a #GtsObject.
*
* Casts @obj to #GtsBBox.
*/
#define GTS_BBOX(obj) GTS_OBJECT_CAST (obj,\
GtsBBox,\
gts_bbox_class ())
/**
* GTS_BBOX_CLASS:
* @klass: a descendant of #GtsBBoxClass.
*
* Casts @klass to #GtsBBoxClass.
*/
#define GTS_BBOX_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsBBoxClass,\
gts_bbox_class ())
struct _GtsBBox {
GtsObject object;
gpointer bounded;
gdouble x1, y1, z1;
gdouble x2, y2, z2;
};
struct _GtsBBoxClass {
GtsObjectClass parent_class;
};
GtsBBoxClass * gts_bbox_class (void);
GtsBBox * gts_bbox_new (GtsBBoxClass * klass,
gpointer bounded,
gdouble x1,
gdouble y1,
gdouble z1,
gdouble x2,
gdouble y2,
gdouble z2);
void gts_bbox_set (GtsBBox * bbox,
gpointer bounded,
gdouble x1,
gdouble y1,
gdouble z1,
gdouble x2,
gdouble y2,
gdouble z2);
GtsBBox * gts_bbox_segment (GtsBBoxClass * klass,
GtsSegment * s);
GtsBBox * gts_bbox_triangle (GtsBBoxClass * klass,
GtsTriangle * t);
GtsBBox * gts_bbox_surface (GtsBBoxClass * klass,
GtsSurface * surface);
GtsBBox * gts_bbox_bboxes (GtsBBoxClass * klass,
GSList * bboxes);
GtsBBox * gts_bbox_points (GtsBBoxClass * klass,
GSList * points);
/**
* gts_bbox_point_is_inside:
* @bbox: a #GtsBBox.
* @p: a #GtsPoint.
*
* Evaluates to %TRUE if @p is inside (or on the boundary) of @bbox, %FALSE otherwise.
*/
#define gts_bbox_point_is_inside(bbox, p) ((p)->x >= (bbox)->x1 &&\
(p)->y >= (bbox)->y1 &&\
(p)->z >= (bbox)->z1 &&\
(p)->x <= (bbox)->x2 &&\
(p)->y <= (bbox)->y2 &&\
(p)->z <= (bbox)->z2)
gboolean gts_bboxes_are_overlapping (GtsBBox * bb1,
GtsBBox * bb2);
void gts_bbox_draw (GtsBBox * bb,
FILE * fptr);
gdouble gts_bbox_diagonal2 (GtsBBox * bb);
void gts_bbox_point_distance2 (GtsBBox * bb,
GtsPoint * p,
gdouble * min,
gdouble * max);
gboolean gts_bbox_is_stabbed (GtsBBox * bb,
GtsPoint * p);
gboolean gts_bbox_overlaps_triangle (GtsBBox * bb,
GtsTriangle * t);
gboolean gts_bbox_overlaps_segment (GtsBBox * bb,
GtsSegment * s);
GNode * gts_bb_tree_new (GSList * bboxes);
GNode * gts_bb_tree_surface (GtsSurface * s);
GSList * gts_bb_tree_stabbed (GNode * tree,
GtsPoint * p);
GSList * gts_bb_tree_overlap (GNode * tree,
GtsBBox * bbox);
gboolean gts_bb_tree_is_overlapping (GNode * tree,
GtsBBox * bbox);
void gts_bb_tree_traverse_overlapping (GNode * tree1,
GNode * tree2,
GtsBBTreeTraverseFunc func,
gpointer data);
void gts_bb_tree_draw (GNode * tree,
guint depth,
FILE * fptr);
GSList * gts_bb_tree_point_closest_bboxes (GNode * tree,
GtsPoint * p);
gdouble gts_bb_tree_point_distance (GNode * tree,
GtsPoint * p,
GtsBBoxDistFunc distance,
GtsBBox ** bbox);
GtsPoint * gts_bb_tree_point_closest (GNode * tree,
GtsPoint * p,
GtsBBoxClosestFunc closest,
gdouble * distance);
void gts_bb_tree_segment_distance (GNode * tree,
GtsSegment * s,
GtsBBoxDistFunc distance,
gdouble delta,
GtsRange * range);
void gts_bb_tree_triangle_distance (GNode * tree,
GtsTriangle * t,
GtsBBoxDistFunc distance,
gdouble delta,
GtsRange * range);
void gts_bb_tree_surface_distance (GNode * tree,
GtsSurface * s,
GtsBBoxDistFunc distance,
gdouble delta,
GtsRange * range);
void gts_bb_tree_surface_boundary_distance
(GNode * tree,
GtsSurface * s,
GtsBBoxDistFunc distance,
gdouble delta,
GtsRange * range);
void gts_bb_tree_destroy (GNode * tree,
gboolean free_leaves);
/* Surfaces: surface.c */
typedef struct _GtsSurfaceStats GtsSurfaceStats;
typedef struct _GtsSurfaceQualityStats GtsSurfaceQualityStats;
typedef GtsVertex * (*GtsRefineFunc) (GtsEdge * e,
GtsVertexClass * klass,
gpointer data);
typedef GtsVertex * (*GtsCoarsenFunc) (GtsEdge * e,
GtsVertexClass * klass,
gpointer data);
typedef gboolean (*GtsStopFunc) (gdouble cost,
guint nedge,
gpointer data);
struct _GtsSurfaceStats {
guint n_faces;
guint n_incompatible_faces;
guint n_duplicate_faces;
guint n_duplicate_edges;
guint n_boundary_edges;
guint n_non_manifold_edges;
GtsRange edges_per_vertex, faces_per_edge;
GtsSurface * parent;
};
struct _GtsSurfaceQualityStats {
GtsRange face_quality;
GtsRange face_area;
GtsRange edge_length;
GtsRange edge_angle;
GtsSurface * parent;
};
struct _GtsSurface {
GtsObject object;
#ifdef USE_SURFACE_BTREE
GTree * faces;
#else /* not USE_SURFACE_BTREE */
GHashTable * faces;
#endif /* not USE_SURFACE_BTREE */
GtsFaceClass * face_class;
GtsEdgeClass * edge_class;
GtsVertexClass * vertex_class;
gboolean keep_faces;
};
struct _GtsSurfaceClass {
GtsObjectClass parent_class;
void (* add_face) (GtsSurface *, GtsFace *);
void (* remove_face) (GtsSurface *, GtsFace *);
};
#define GTS_IS_SURFACE(obj) (gts_object_is_from_class (obj,\
gts_surface_class ()))
#define GTS_SURFACE(obj) GTS_OBJECT_CAST (obj,\
GtsSurface,\
gts_surface_class ())
#define GTS_SURFACE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsSurfaceClass,\
gts_surface_class ())
GtsSurfaceClass * gts_surface_class (void);
GtsSurface * gts_surface_new (GtsSurfaceClass * klass,
GtsFaceClass * face_class,
GtsEdgeClass * edge_class,
GtsVertexClass * vertex_class);
void gts_surface_add_face (GtsSurface * s,
GtsFace * f);
void gts_surface_remove_face (GtsSurface * s,
GtsFace * f);
guint gts_surface_read (GtsSurface * surface,
GtsFile * f);
gdouble gts_surface_area (GtsSurface * s);
void gts_surface_stats (GtsSurface * s,
GtsSurfaceStats * stats);
void gts_surface_quality_stats (GtsSurface * s,
GtsSurfaceQualityStats * stats);
void gts_surface_print_stats (GtsSurface * s,
FILE * fptr);
void gts_surface_write (GtsSurface * s,
FILE * fptr);
void gts_surface_write_oogl (GtsSurface * s,
FILE * fptr);
void gts_surface_write_vtk (GtsSurface * s,
FILE * fptr);
void gts_surface_write_oogl_boundary (GtsSurface * s,
FILE * fptr);
void gts_surface_foreach_vertex (GtsSurface * s,
GtsFunc func,
gpointer data);
void gts_surface_foreach_edge (GtsSurface * s,
GtsFunc func,
gpointer data);
void gts_surface_foreach_face (GtsSurface * s,
GtsFunc func,
gpointer data);
guint gts_surface_foreach_face_remove (GtsSurface * s,
GtsFunc func,
gpointer data);
typedef struct _GtsSurfaceTraverse GtsSurfaceTraverse;
GtsSurfaceTraverse * gts_surface_traverse_new (GtsSurface * s,
GtsFace * f);
GtsFace * gts_surface_traverse_next (GtsSurfaceTraverse * t,
guint * level);
void gts_surface_traverse_destroy (GtsSurfaceTraverse * t);
void gts_surface_refine (GtsSurface * surface,
GtsKeyFunc cost_func,
gpointer cost_data,
GtsRefineFunc refine_func,
gpointer refine_data,
GtsStopFunc stop_func,
gpointer stop_data);
gboolean gts_edge_collapse_is_valid (GtsEdge * e);
void gts_surface_coarsen (GtsSurface * surface,
GtsKeyFunc cost_func,
gpointer cost_data,
GtsCoarsenFunc coarsen_func,
gpointer coarsen_data,
GtsStopFunc stop_func,
gpointer stop_data,
gdouble minangle);
gboolean gts_coarsen_stop_number (gdouble cost,
guint nedge,
guint * min_number);
gboolean gts_coarsen_stop_cost (gdouble cost,
guint nedge,
gdouble * max_cost);
void gts_surface_tessellate (GtsSurface * s,
GtsRefineFunc refine_func,
gpointer refine_data);
GtsSurface * gts_surface_generate_sphere (GtsSurface * s,
guint geodesation_order);
GtsSurface * gts_surface_copy (GtsSurface * s1,
GtsSurface * s2);
void gts_surface_merge (GtsSurface * s,
GtsSurface * with);
gboolean gts_surface_is_manifold (GtsSurface * s);
gboolean gts_surface_is_closed (GtsSurface * s);
gboolean gts_surface_is_orientable (GtsSurface * s);
gdouble gts_surface_volume (GtsSurface * s);
gdouble gts_surface_center_of_mass (GtsSurface * s,
GtsVector cm);
gdouble gts_surface_center_of_area (GtsSurface * s,
GtsVector cm);
guint gts_surface_vertex_number (GtsSurface * s);
guint gts_surface_edge_number (GtsSurface * s);
guint gts_surface_face_number (GtsSurface * s);
void gts_surface_distance (GtsSurface * s1,
GtsSurface * s2,
gdouble delta,
GtsRange * face_range,
GtsRange * boundary_range);
GSList * gts_surface_boundary (GtsSurface * surface);
GSList * gts_surface_split (GtsSurface * s);
/* Discrete differential operators: curvature.c */
gboolean gts_vertex_mean_curvature_normal (GtsVertex * v,
GtsSurface * s,
GtsVector Kh);
gboolean gts_vertex_gaussian_curvature (GtsVertex * v,
GtsSurface * s,
gdouble * Kg);
void gts_vertex_principal_curvatures (gdouble Kh,
gdouble Kg,
gdouble * K1,
gdouble * K2);
void gts_vertex_principal_directions (GtsVertex * v,
GtsSurface * s,
GtsVector Kh,
gdouble Kg,
GtsVector e1,
GtsVector e2);
/* Volume optimization: vopt.c */
typedef struct _GtsVolumeOptimizedParams GtsVolumeOptimizedParams;
struct _GtsVolumeOptimizedParams {
gdouble volume_weight;
gdouble boundary_weight;
gdouble shape_weight;
};
GtsVertex * gts_volume_optimized_vertex (GtsEdge * edge,
GtsVertexClass * klass,
GtsVolumeOptimizedParams * params);
gdouble gts_volume_optimized_cost (GtsEdge * e,
GtsVolumeOptimizedParams * params);
/* Boolean operations: boolean.c */
GSList * gts_surface_intersection (GtsSurface * s1,
GtsSurface * s2,
GNode * faces_tree1,
GNode * faces_tree2);
typedef struct _GtsSurfaceInter GtsSurfaceInter;
typedef struct _GtsSurfaceInterClass GtsSurfaceInterClass;
/**
* GtsBooleanOperation:
* @GTS_1_OUT_2: identifies the part of the first surface which lies
* outside the second surface.
* @GTS_1_IN_2: identifies the part of the first surface which lies
* inside the second surface.
* @GTS_2_OUT_1: identifies the part of the second surface which lies
* outside the first surface.
* @GTS_2_IN_1: identifies the part of the second surface which lies
* inside the first surface.
*/
typedef enum { GTS_1_OUT_2,
GTS_1_IN_2,
GTS_2_OUT_1,
GTS_2_IN_1 } GtsBooleanOperation;
/**
* GTS_IS_SURFACE_INTER:
* @obj: a #GtsObject.
*
* Evaluates to %TRUE if @obj is a #GtsSurfaceInter, %FALSE otherwise.
*/
#define GTS_IS_SURFACE_INTER(obj) (gts_object_is_from_class (obj,\
gts_surface_inter_class ()))
/**
* GTS_SURFACE_INTER:
* @obj: a descendant of #GtsSurfaceInter.
*
* Casts @obj to #GtsSurfaceInter.
*/
#define GTS_SURFACE_INTER(obj) GTS_OBJECT_CAST (obj,\
GtsSurfaceInter,\
gts_surface_inter_class ())
/**
* GTS_SURFACE_INTER_CLASS:
* @klass: a descendant of #GtsSurfaceInterClass.
*
* Casts @klass to #GtsSurfaceInterClass.
*/
#define GTS_SURFACE_INTER_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsSurfaceInterClass,\
gts_surface_inter_class ())
struct _GtsSurfaceInter {
GtsObject object;
GtsSurface * s1;
GtsSurface * s2;
GSList * edges;
};
struct _GtsSurfaceInterClass {
GtsObjectClass parent_class;
};
GtsSurfaceInterClass *
gts_surface_inter_class (void);
GtsSurfaceInter *
gts_surface_inter_new (GtsSurfaceInterClass * klass,
GtsSurface * s1,
GtsSurface * s2,
GNode * faces_tree1,
GNode * faces_tree2,
gboolean is_open1,
gboolean is_open2);
gboolean
gts_surface_inter_check (GtsSurfaceInter * si,
gboolean * closed);
void
gts_surface_inter_boolean (GtsSurfaceInter * si,
GtsSurface * surface,
GtsBooleanOperation op);
gboolean gts_surface_foreach_intersecting_face (GtsSurface * s,
GtsBBTreeTraverseFunc func,
gpointer data);
GtsSurface *
gts_surface_is_self_intersecting (GtsSurface * s);
/* Binary Heap: heap.c */
typedef struct _GtsHeap GtsHeap;
GtsHeap * gts_heap_new (GCompareFunc compare_func);
void gts_heap_insert (GtsHeap * heap, gpointer p);
gpointer gts_heap_remove_top (GtsHeap * heap);
gpointer gts_heap_top (GtsHeap * heap);
void gts_heap_thaw (GtsHeap * heap);
void gts_heap_foreach (GtsHeap * heap,
GFunc func,
gpointer user_data);
void gts_heap_freeze (GtsHeap * heap);
guint gts_heap_size (GtsHeap * heap);
void gts_heap_destroy (GtsHeap * heap);
/* Extended Binary Heap: eheap.c */
typedef struct _GtsEHeap GtsEHeap;
typedef struct _GtsEHeapPair GtsEHeapPair;
/**
* _GtsEHeapPair:
* @data: Points to the item stored in the heap.
* @key: Value of the key for this item.
* @pos: Private field.
*/
struct _GtsEHeapPair {
gpointer data;
gdouble key;
guint pos;
};
GtsEHeap * gts_eheap_new (GtsKeyFunc key_func,
gpointer data);
GtsEHeapPair * gts_eheap_insert (GtsEHeap * heap,
gpointer p);
GtsEHeapPair * gts_eheap_insert_with_key (GtsEHeap * heap,
gpointer p,
gdouble key);
gpointer gts_eheap_remove_top (GtsEHeap * heap,
gdouble * key);
gpointer gts_eheap_top (GtsEHeap * heap,
gdouble * key);
void gts_eheap_thaw (GtsEHeap * heap);
void gts_eheap_foreach (GtsEHeap * heap,
GFunc func,
gpointer data);
gpointer gts_eheap_remove (GtsEHeap * heap,
GtsEHeapPair * p);
void gts_eheap_decrease_key (GtsEHeap * heap,
GtsEHeapPair * p,
gdouble new_key);
void gts_eheap_freeze (GtsEHeap * heap);
guint gts_eheap_size (GtsEHeap * heap);
void gts_eheap_update (GtsEHeap * heap);
gdouble gts_eheap_key (GtsEHeap * heap,
gpointer p);
void gts_eheap_randomized (GtsEHeap * heap,
gboolean randomized);
void gts_eheap_destroy (GtsEHeap * heap);
/* FIFO queues: fifo.c */
typedef struct _GtsFifo GtsFifo;
GtsFifo * gts_fifo_new (void);
void gts_fifo_write (GtsFifo * fifo,
FILE * fp);
void gts_fifo_push (GtsFifo * fifo,
gpointer data);
gpointer gts_fifo_pop (GtsFifo * fifo);
gpointer gts_fifo_top (GtsFifo * fifo);
guint gts_fifo_size (GtsFifo * fifo);
gboolean gts_fifo_is_empty (GtsFifo * fifo);
void gts_fifo_foreach (GtsFifo * fifo,
GtsFunc func,
gpointer data);
void gts_fifo_reverse (GtsFifo * fifo);
void gts_fifo_destroy (GtsFifo * fifo);
/* Progressive surfaces */
/* split.c */
typedef struct _GtsSplit GtsSplit;
typedef struct _GtsSplitClass GtsSplitClass;
typedef struct _GtsSplitCFace GtsSplitCFace;
struct _GtsSplit {
GtsObject object;
GtsVertex * v;
GtsObject * v1;
GtsObject * v2;
GtsSplitCFace * cfaces;
guint ncf;
};
struct _GtsSplitClass {
GtsObjectClass parent_class;
};
#define GTS_IS_SPLIT(obj) (gts_object_is_from_class (obj,\
gts_split_class ()))
#define GTS_SPLIT(obj) GTS_OBJECT_CAST (obj,\
GtsSplit,\
gts_split_class ())
#define GTS_SPLIT_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsSplitClass,\
gts_split_class ())
#define GTS_SPLIT_V1(vs) (GTS_IS_SPLIT ((vs)->v1) ?\
GTS_SPLIT ((vs)->v1)->v :\
GTS_VERTEX ((vs)->v1))
#define GTS_SPLIT_V2(vs) (GTS_IS_SPLIT ((vs)->v2) ?\
GTS_SPLIT ((vs)->v2)->v :\
GTS_VERTEX ((vs)->v2))
GtsSplitClass * gts_split_class (void);
GtsSplit * gts_split_new (GtsSplitClass * klass,
GtsVertex * v,
GtsObject * o1,
GtsObject * o2);
void gts_split_collapse (GtsSplit * vs,
GtsEdgeClass * klass,
GtsEHeap * heap);
void gts_split_expand (GtsSplit * vs,
GtsSurface * s,
GtsEdgeClass * klass);
typedef gboolean (*GtsSplitTraverseFunc) (GtsSplit * vs,
gpointer data);
void gts_split_traverse (GtsSplit * root,
GTraverseType order,
gint depth,
GtsSplitTraverseFunc func,
gpointer data);
guint gts_split_height (GtsSplit * root);
/* psurface.c */
typedef struct _GtsPSurface GtsPSurface;
typedef struct _GtsPSurfaceClass GtsPSurfaceClass;
struct _GtsPSurface {
GtsObject object;
GtsSurface * s;
GPtrArray * split;
GtsSplitClass * split_class;
guint pos, min;
GPtrArray * vertices;
GPtrArray * faces;
};
struct _GtsPSurfaceClass {
GtsObjectClass parent_class;
};
#define GTS_IS_PSURFACE(obj) (gts_object_is_from_class (obj,\
gts_psurface_class ()))
#define GTS_PSURFACE(obj) GTS_OBJECT_CAST (obj,\
GtsPSurface,\
gts_psurface_class ())
#define GTS_PSURFACE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsPSurfaceClass,\
gts_psurface_class ())
#define GTS_PSURFACE_IS_CLOSED(ps) (!(ps)->vertices)
GtsPSurfaceClass * gts_psurface_class (void);
GtsPSurface * gts_psurface_new (GtsPSurfaceClass * klass,
GtsSurface * surface,
GtsSplitClass * split_class,
GtsKeyFunc cost_func,
gpointer cost_data,
GtsCoarsenFunc coarsen_func,
gpointer coarsen_data,
GtsStopFunc stop_func,
gpointer stop_data,
gdouble minangle);
GtsSplit * gts_psurface_add_vertex (GtsPSurface * ps);
GtsSplit * gts_psurface_remove_vertex (GtsPSurface * ps);
guint gts_psurface_max_vertex_number (GtsPSurface * ps);
guint gts_psurface_min_vertex_number (GtsPSurface * ps);
void gts_psurface_set_vertex_number (GtsPSurface * ps,
guint n);
guint gts_psurface_get_vertex_number (GtsPSurface * ps);
void gts_psurface_write (GtsPSurface * ps,
FILE * fptr);
GtsPSurface * gts_psurface_open (GtsPSurfaceClass * klass,
GtsSurface * s,
GtsSplitClass * split_class,
GtsFile * f);
GtsSplit * gts_psurface_read_vertex (GtsPSurface * ps,
GtsFile * fp);
void gts_psurface_close (GtsPSurface * ps);
void gts_psurface_foreach_vertex (GtsPSurface * ps,
GtsFunc func,
gpointer data);
/* hsurface.c */
typedef struct _GtsHSplit GtsHSplit;
typedef struct _GtsHSplitClass GtsHSplitClass;
typedef struct _GtsHSurface GtsHSurface;
typedef struct _GtsHSurfaceClass GtsHSurfaceClass;
struct _GtsHSplit {
GtsSplit split;
GtsEHeapPair * index;
GtsHSplit * parent;
guint nchild;
};
struct _GtsHSplitClass {
GtsSplitClass parent_class;
};
#define GTS_IS_HSPLIT(obj) (gts_object_is_from_class (obj,\
gts_hsplit_class ()))
#define GTS_HSPLIT(obj) GTS_OBJECT_CAST (obj,\
GtsHSplit,\
gts_hsplit_class ())
#define GTS_HSPLIT_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsHSplitClass,\
gts_hsplit_class ())
GtsHSplitClass * gts_hsplit_class (void);
GtsHSplit * gts_hsplit_new (GtsHSplitClass * klass,
GtsSplit * vs);
void gts_hsplit_collapse (GtsHSplit * hs,
GtsHSurface * hsurface);
void gts_hsplit_expand (GtsHSplit * hs,
GtsHSurface * hsurface);
void gts_hsplit_force_expand (GtsHSplit * hs,
GtsHSurface * hsurface);
struct _GtsHSurface {
GtsObject object;
GtsSurface * s;
GSList * roots;
GtsEHeap * expandable;
GtsEHeap * collapsable;
GPtrArray * split;
guint nvertex;
};
struct _GtsHSurfaceClass {
GtsObjectClass parent_class;
};
#define GTS_IS_HSURFACE(obj) (gts_object_is_from_class (obj,\
gts_hsurface_class ()))
#define GTS_HSURFACE(obj) GTS_OBJECT_CAST (obj,\
GtsHSurface,\
gts_hsurface_class ())
#define GTS_HSURFACE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsHSurfaceClass,\
gts_hsurface_class ())
GtsHSurfaceClass * gts_hsurface_class (void);
GtsHSurface * gts_hsurface_new (GtsHSurfaceClass * klass,
GtsHSplitClass * hsplit_class,
GtsPSurface * psurface,
GtsKeyFunc expand_key,
gpointer expand_data,
GtsKeyFunc collapse_key,
gpointer collapse_data);
void gts_hsurface_traverse (GtsHSurface * hsurface,
GTraverseType order,
gint depth,
GtsSplitTraverseFunc func,
gpointer data);
void gts_hsurface_foreach (GtsHSurface * hsurface,
GTraverseType order,
GtsFunc func,
gpointer data);
guint gts_hsurface_height (GtsHSurface * hsurface);
/* Constrained Delaunay triangulation: cdt.c */
/**
* GTS_IS_CONSTRAINT:
* @obj: a #GtsObject.
*
* Evaluates to %TRUE if @obj is a #GtsConstraint, %FALSE otherwise.
*/
#define GTS_IS_CONSTRAINT(obj) (gts_object_is_from_class (obj,\
gts_constraint_class ()))
/**
* GTS_CONSTRAINT:
* @obj: a descendant of #GtsConstraint.
*
* Casts @obj to #GtsConstraint.
*/
#define GTS_CONSTRAINT(obj) GTS_OBJECT_CAST (obj,\
GtsConstraint,\
gts_constraint_class ())
/**
* GTS_CONSTRAINT_CLASS:
* @klass: a desscendant of #GtsConstraintClass.
*
* Casts @klass to #GtsConstraintClass.
*/
#define GTS_CONSTRAINT_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsConstraintClass,\
gts_constraint_class ())
typedef struct _GtsConstraint GtsConstraint;
typedef struct _GtsConstraintClass GtsConstraintClass;
GtsConstraintClass * gts_constraint_class (void);
GtsFace * gts_point_locate (GtsPoint * p,
GtsSurface * surface,
GtsFace * guess);
GtsVertex * gts_delaunay_add_vertex_to_face (GtsSurface * surface,
GtsVertex * v,
GtsFace * f);
GtsVertex * gts_delaunay_add_vertex (GtsSurface * surface,
GtsVertex * v,
GtsFace * guess);
void gts_delaunay_remove_vertex (GtsSurface * surface,
GtsVertex * v);
GtsFace * gts_delaunay_check (GtsSurface * surface);
GSList * gts_delaunay_add_constraint (GtsSurface * surface,
GtsConstraint * c);
void gts_delaunay_remove_hull (GtsSurface * surface);
/* GtsListFace: Header */
typedef struct _GtsListFace GtsListFace;
struct _GtsListFace {
/*< private >*/
GtsFace parent;
/*< public >*/
GSList * points;
};
#define GTS_LIST_FACE(obj) GTS_OBJECT_CAST (obj,\
GtsListFace,\
gts_list_face_class ())
#define GTS_IS_LIST_FACE(obj) (gts_object_is_from_class (obj,\
gts_list_face_class ()))
GtsFaceClass * gts_list_face_class (void);
/* Constrained Delaunay refinement: refine.c */
typedef gboolean (* GtsEncroachFunc) (GtsVertex * v,
GtsEdge * e,
GtsSurface * s,
gpointer data);
gboolean gts_vertex_encroaches_edge (GtsVertex * v,
GtsEdge * e);
GtsVertex * gts_edge_is_encroached (GtsEdge * e,
GtsSurface * s,
GtsEncroachFunc encroaches,
gpointer data);
guint gts_delaunay_conform (GtsSurface * surface,
gint steiner_max,
GtsEncroachFunc encroaches,
gpointer data);
guint gts_delaunay_refine (GtsSurface * surface,
gint steiner_max,
GtsEncroachFunc encroaches,
gpointer encroach_data,
GtsKeyFunc cost,
gpointer cost_data);
/* Isosurfaces (marching cubes): iso.c */
typedef struct _GtsGridPlane GtsGridPlane;
typedef struct _GtsIsoSlice GtsIsoSlice;
typedef struct _GtsCartesianGrid GtsCartesianGrid;
struct _GtsGridPlane {
GtsPoint ** p;
guint nx, ny;
};
struct _GtsCartesianGrid {
guint nx, ny, nz;
gdouble x, dx, y, dy, z, dz;
};
typedef void (*GtsIsoCartesianFunc) (gdouble ** a,
GtsCartesianGrid g,
guint i,
gpointer data);
GtsGridPlane * gts_grid_plane_new (guint nx,
guint ny);
void gts_grid_plane_destroy (GtsGridPlane * g);
GtsIsoSlice * gts_iso_slice_new (guint nx, guint ny);
void gts_iso_slice_fill (GtsIsoSlice * slice,
GtsGridPlane * plane1,
GtsGridPlane * plane2,
gdouble ** f1,
gdouble ** f2,
gdouble iso,
GtsVertexClass * klass);
void gts_iso_slice_fill_cartesian (GtsIsoSlice * slice,
GtsCartesianGrid g,
gdouble ** f1,
gdouble ** f2,
gdouble iso,
GtsVertexClass * klass);
void gts_iso_slice_destroy (GtsIsoSlice * slice);
void gts_isosurface_slice (GtsIsoSlice * slice1,
GtsIsoSlice * slice2,
GtsSurface * surface);
void gts_isosurface_cartesian (GtsSurface * surface,
GtsCartesianGrid g,
GtsIsoCartesianFunc f,
gpointer data,
gdouble iso);
/* Isosurfaces (marching tetrahedra): isotetra.c */
void gts_isosurface_tetra (GtsSurface * surface,
GtsCartesianGrid g,
GtsIsoCartesianFunc f,
gpointer data,
gdouble iso);
void gts_isosurface_tetra_bcl (GtsSurface * surface,
GtsCartesianGrid g,
GtsIsoCartesianFunc f,
gpointer data,
gdouble iso);
void gts_isosurface_tetra_bounded (GtsSurface * surface,
GtsCartesianGrid g,
GtsIsoCartesianFunc f,
gpointer data,
gdouble iso);
/* Named vertices, edges and triangles: named.c */
#define GTS_NAME_LENGTH 40
#define GTS_NVERTEX(obj) GTS_OBJECT_CAST (obj,\
GtsNVertex,\
gts_nvertex_class ())
#define GTS_NVERTEX_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsNVertexClass,\
gts_nvertex_class())
#define GTS_IS_NVERTEX(obj) (gts_object_is_from_class (obj,\
gts_nvertex_class ()))
typedef struct _GtsNVertex GtsNVertex;
typedef struct _GtsNVertexClass GtsNVertexClass;
struct _GtsNVertex {
GtsVertex parent;
char name[GTS_NAME_LENGTH];
};
struct _GtsNVertexClass {
GtsVertexClass parent_class;
};
GtsNVertexClass * gts_nvertex_class (void);
#define GTS_NEDGE(obj) GTS_OBJECT_CAST (obj,\
GtsNEdge,\
gts_nedge_class ())
#define GTS_NEDGE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsNEdgeClass,\
gts_nedge_class())
#define GTS_IS_NEDGE(obj) (gts_object_is_from_class (obj,\
gts_nedge_class ()))
typedef struct _GtsNEdge GtsNEdge;
typedef struct _GtsNEdgeClass GtsNEdgeClass;
struct _GtsNEdge {
GtsEdge parent;
char name[GTS_NAME_LENGTH];
};
struct _GtsNEdgeClass {
GtsEdgeClass parent_class;
};
GtsNEdgeClass * gts_nedge_class (void);
#define GTS_NFACE(obj) GTS_OBJECT_CAST (obj,\
GtsNFace,\
gts_nface_class ())
#define GTS_NFACE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsNFaceClass,\
gts_nface_class())
#define GTS_IS_NFACE(obj) (gts_object_is_from_class (obj,\
gts_nface_class ()))
typedef struct _GtsNFace GtsNFace;
typedef struct _GtsNFaceClass GtsNFaceClass;
struct _GtsNFace {
GtsFace parent;
char name[GTS_NAME_LENGTH];
};
struct _GtsNFaceClass {
GtsFaceClass parent_class;
};
GtsNFaceClass * gts_nface_class (void);
/* Cluster object for out-of-core simplification: oocs.c */
#define GTS_CLUSTER(obj) GTS_OBJECT_CAST (obj,\
GtsCluster,\
gts_cluster_class ())
#define GTS_CLUSTER_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsClusterClass,\
gts_cluster_class())
#define GTS_IS_CLUSTER(obj) (gts_object_is_from_class (obj,\
gts_cluster_class ()))
typedef struct _GtsCluster GtsCluster;
typedef struct _GtsClusterClass GtsClusterClass;
typedef struct _GtsClusterId GtsClusterId;
struct _GtsClusterId {
guint x, y, z;
};
struct _GtsCluster {
GtsObject parent;
GtsClusterId id;
GtsVertex * v;
guint n;
};
struct _GtsClusterClass {
GtsObjectClass parent_class;
void (* add) (GtsCluster * c, GtsPoint * p, gpointer data);
void (* update) (GtsCluster * c);
};
GtsClusterClass * gts_cluster_class (void);
GtsCluster * gts_cluster_new (GtsClusterClass * klass,
GtsClusterId id,
GtsVertexClass * vklass);
void gts_cluster_add (GtsCluster * c,
GtsPoint * p,
gpointer data);
void gts_cluster_update (GtsCluster * c);
/* Cluster group object for out-of-core simplification: oocs.c */
#define GTS_CLUSTER_GRID(obj) GTS_OBJECT_CAST (obj,\
GtsClusterGrid,\
gts_cluster_grid_class ())
#define GTS_CLUSTER_GRID_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsClusterGridClass,\
gts_cluster_grid_class())
#define GTS_IS_CLUSTER_GRID(obj) (gts_object_is_from_class (obj,\
gts_cluster_grid_class ()))
typedef struct _GtsClusterGrid GtsClusterGrid;
typedef struct _GtsClusterGridClass GtsClusterGridClass;
struct _GtsClusterGrid {
GtsObject parent;
GtsSurface * surface;
GtsBBox * bbox;
GtsVector size;
GtsClusterClass * cluster_class;
GHashTable * clusters;
};
struct _GtsClusterGridClass {
GtsObjectClass parent_class;
};
GtsClusterGridClass * gts_cluster_grid_class (void);
GtsClusterGrid * gts_cluster_grid_new (GtsClusterGridClass * klass,
GtsClusterClass * cluster_class,
GtsSurface * s,
GtsBBox * bbox,
gdouble delta);
void gts_cluster_grid_add_triangle (GtsClusterGrid * cluster_grid,
GtsPoint * p1,
GtsPoint * p2,
GtsPoint * p3,
gpointer data);
GtsRange gts_cluster_grid_update (GtsClusterGrid * cluster_grid);
/* Triangle strip generation: stripe.c */
GSList * gts_surface_strip (GtsSurface * s);
/* GtsContainee: container.c */
typedef struct _GtsContainee GtsContainee;
typedef struct _GtsContaineeClass GtsContaineeClass;
typedef struct _GtsContainer GtsContainer;
typedef struct _GtsContainerClass GtsContainerClass;
struct _GtsContainee {
GtsObject object;
};
struct _GtsContaineeClass {
GtsObjectClass parent_class;
void (* add_container) (GtsContainee *, GtsContainer *);
void (* remove_container) (GtsContainee *, GtsContainer *);
void (* foreach) (GtsContainee *, GtsFunc, gpointer);
gboolean (* is_contained) (GtsContainee *, GtsContainer *);
void (* replace) (GtsContainee *, GtsContainee *);
};
#define GTS_CONTAINEE(obj) GTS_OBJECT_CAST (obj,\
GtsContainee,\
gts_containee_class ())
#define GTS_CONTAINEE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsContaineeClass,\
gts_containee_class())
#define GTS_IS_CONTAINEE(obj) (gts_object_is_from_class (obj,\
gts_containee_class ()))
GtsContaineeClass * gts_containee_class (void);
GtsContainee * gts_containee_new (GtsContaineeClass * klass);
gboolean gts_containee_is_contained (GtsContainee * item,
GtsContainer * c);
void gts_containee_replace (GtsContainee * item,
GtsContainee * with);
/* GtsSListContainee: container.c */
typedef struct _GtsSListContainee GtsSListContainee;
typedef struct _GtsSListContaineeClass GtsSListContaineeClass;
struct _GtsSListContainee {
GtsContainee containee;
GSList * containers;
};
struct _GtsSListContaineeClass {
GtsContaineeClass parent_class;
};
#define GTS_SLIST_CONTAINEE(obj) GTS_OBJECT_CAST (obj,\
GtsSListContainee,\
gts_slist_containee_class ())
#define GTS_SLIST_CONTAINEE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsSListContaineeClass,\
gts_slist_containee_class())
#define GTS_IS_SLIST_CONTAINEE(obj) (gts_object_is_from_class (obj,\
gts_slist_containee_class ()))
GtsSListContaineeClass * gts_slist_containee_class (void);
/* GtsContainer: container.c */
struct _GtsContainer {
GtsSListContainee object;
};
struct _GtsContainerClass {
GtsSListContaineeClass parent_class;
void (* add) (GtsContainer *, GtsContainee *);
void (* remove) (GtsContainer *, GtsContainee *);
void (* foreach) (GtsContainer *, GtsFunc, gpointer);
guint (* size) (GtsContainer *);
};
#define GTS_CONTAINER(obj) GTS_OBJECT_CAST (obj,\
GtsContainer,\
gts_container_class ())
#define GTS_CONTAINER_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsContainerClass,\
gts_container_class())
#define GTS_IS_CONTAINER(obj) (gts_object_is_from_class (obj,\
gts_container_class ()))
GtsContainerClass * gts_container_class (void);
GtsContainer * gts_container_new (GtsContainerClass * klass);
void gts_container_add (GtsContainer * c,
GtsContainee * item);
void gts_container_remove (GtsContainer * c,
GtsContainee * item);
void gts_container_foreach (GtsContainer * c,
GtsFunc func,
gpointer data);
guint gts_container_size (GtsContainer * c);
/* GtsHashContainer: container.c */
typedef struct _GtsHashContainer GtsHashContainer;
typedef struct _GtsHashContainerClass GtsHashContainerClass;
struct _GtsHashContainer {
GtsContainer c;
GHashTable * items;
gboolean frozen;
};
struct _GtsHashContainerClass {
GtsContainerClass parent_class;
};
#define GTS_HASH_CONTAINER(obj) GTS_OBJECT_CAST (obj,\
GtsHashContainer,\
gts_hash_container_class ())
#define GTS_HASH_CONTAINER_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsHashContainerClass,\
gts_hash_container_class())
#define GTS_IS_HASH_CONTAINER(obj) (gts_object_is_from_class (obj,\
gts_hash_container_class ()))
GtsHashContainerClass * gts_hash_container_class (void);
/* GtsSListContainer: container.c */
typedef struct _GtsSListContainer GtsSListContainer;
typedef struct _GtsSListContainerClass GtsSListContainerClass;
struct _GtsSListContainer {
GtsContainer c;
GSList * items;
gboolean frozen;
};
struct _GtsSListContainerClass {
GtsContainerClass parent_class;
};
#define GTS_SLIST_CONTAINER(obj) GTS_OBJECT_CAST (obj,\
GtsSListContainer,\
gts_slist_container_class ())
#define GTS_SLIST_CONTAINER_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsSListContainerClass,\
gts_slist_container_class())
#define GTS_IS_SLIST_CONTAINER(obj) (gts_object_is_from_class (obj,\
gts_slist_container_class ()))
GtsSListContainerClass * gts_slist_container_class (void);
/* GtsGNode: graph.c */
typedef struct _GtsGNode GtsGNode;
typedef struct _GtsGNodeClass GtsGNodeClass;
typedef struct _GtsGraph GtsGraph;
typedef struct _GtsGraphClass GtsGraphClass;
struct _GtsGNode {
GtsSListContainer container;
guint level;
};
struct _GtsGNodeClass {
GtsSListContainerClass parent_class;
gfloat (* weight) (GtsGNode *);
void (* write) (GtsGNode *, FILE *);
};
#define GTS_GNODE(obj) GTS_OBJECT_CAST (obj,\
GtsGNode,\
gts_gnode_class ())
#define GTS_GNODE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsGNodeClass,\
gts_gnode_class())
#define GTS_IS_GNODE(obj) (gts_object_is_from_class (obj,\
gts_gnode_class ()))
#define GTS_GNODE_NEIGHBOR(n,e) (GTS_GEDGE (e)->n1 == n ? GTS_GEDGE (e)->n2 : GTS_GEDGE (e)->n2 == n ? GTS_GEDGE (e)->n1 : NULL)
GtsGNodeClass * gts_gnode_class (void);
GtsGNode * gts_gnode_new (GtsGNodeClass * klass);
void gts_gnode_foreach_neighbor (GtsGNode * n,
GtsGraph * g,
GtsFunc func,
gpointer data);
void gts_gnode_foreach_edge (GtsGNode * n,
GtsGraph * g,
GtsFunc func,
gpointer data);
guint gts_gnode_degree (GtsGNode * n,
GtsGraph * g);
gfloat gts_gnode_move_cost (GtsGNode * n,
GtsGraph * src,
GtsGraph * dst);
gfloat gts_gnode_weight (GtsGNode * n);
GTS_C_VAR
gboolean gts_allow_floating_gnodes;
/* GtsNGNode: graph.c */
typedef struct _GtsNGNode GtsNGNode;
typedef struct _GtsNGNodeClass GtsNGNodeClass;
struct _GtsNGNode {
GtsGNode node;
guint id;
};
struct _GtsNGNodeClass {
GtsGNodeClass parent_class;
};
#define GTS_NGNODE(obj) GTS_OBJECT_CAST (obj,\
GtsNGNode,\
gts_ngnode_class ())
#define GTS_NGNODE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsNGNodeClass,\
gts_ngnode_class())
#define GTS_IS_NGNODE(obj) (gts_object_is_from_class (obj,\
gts_ngnode_class ()))
GtsNGNodeClass * gts_ngnode_class (void);
GtsNGNode * gts_ngnode_new (GtsNGNodeClass * klass,
guint id);
/* GtsWGNode: graph.c */
typedef struct _GtsWGNode GtsWGNode;
typedef struct _GtsWGNodeClass GtsWGNodeClass;
struct _GtsWGNode {
GtsGNode node;
gfloat weight;
};
struct _GtsWGNodeClass {
GtsGNodeClass parent_class;
};
#define GTS_WGNODE(obj) GTS_OBJECT_CAST (obj,\
GtsWGNode,\
gts_wgnode_class ())
#define GTS_WGNODE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsWGNodeClass,\
gts_wgnode_class())
#define GTS_IS_WGNODE(obj) (gts_object_is_from_class (obj,\
gts_wgnode_class ()))
GtsWGNodeClass * gts_wgnode_class (void);
GtsWGNode * gts_wgnode_new (GtsWGNodeClass * klass,
gfloat weight);
/* GtsPNode */
typedef struct _GtsPNode GtsPNode;
typedef struct _GtsPNodeClass GtsPNodeClass;
struct _GtsPNode {
GtsGNode node;
gpointer data;
};
struct _GtsPNodeClass {
GtsGNodeClass parent_class;
};
#define GTS_PNODE(obj) GTS_OBJECT_CAST (obj,\
GtsPNode,\
gts_pnode_class ())
#define GTS_PNODE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsPNodeClass,\
gts_pnode_class())
#define GTS_IS_PNODE(obj) (gts_object_is_from_class (obj,\
gts_pnode_class ()))
GtsPNodeClass * gts_pnode_class (void);
GtsPNode * gts_pnode_new (GtsPNodeClass * klass,
gpointer data);
/* GtsFNode */
typedef struct _GtsFNode GtsFNode;
typedef struct _GtsFNodeClass GtsFNodeClass;
struct _GtsFNode {
GtsGNode node;
GtsFace * f;
};
struct _GtsFNodeClass {
GtsGNodeClass parent_class;
};
#define GTS_FNODE(obj) GTS_OBJECT_CAST (obj,\
GtsFNode,\
gts_fnode_class ())
#define GTS_FNODE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsFNodeClass,\
gts_fnode_class())
#define GTS_IS_FNODE(obj) (gts_object_is_from_class (obj,\
gts_fnode_class ()))
GtsFNodeClass * gts_fnode_class (void);
GtsFNode * gts_fnode_new (GtsFNodeClass * klass,
GtsFace * f);
/* GtsGEdge: graph.c */
typedef struct _GtsGEdge GtsGEdge;
typedef struct _GtsGEdgeClass GtsGEdgeClass;
struct _GtsGEdge {
GtsContainee containee;
GtsGNode * n1;
GtsGNode * n2;
};
struct _GtsGEdgeClass {
GtsContaineeClass parent_class;
GtsGEdge * (* link) (GtsGEdge * e, GtsGNode * n1, GtsGNode * n2);
gfloat (* weight) (GtsGEdge * e);
void (* write) (GtsGEdge * e, FILE * fp);
};
#define GTS_GEDGE(obj) GTS_OBJECT_CAST (obj,\
GtsGEdge,\
gts_gedge_class ())
#define GTS_GEDGE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsGEdgeClass,\
gts_gedge_class())
#define GTS_IS_GEDGE(obj) (gts_object_is_from_class (obj,\
gts_gedge_class ()))
GtsGEdgeClass * gts_gedge_class (void);
GtsGEdge * gts_gedge_new (GtsGEdgeClass * klass,
GtsGNode * n1,
GtsGNode * n2);
gfloat gts_gedge_weight (GtsGEdge * e);
#define gts_gedge_connects(e, a1, a2)\
(((e)->n1 == a1 && (e)->n2 == a2) || ((e)->n1 == a2 && (e)->n2 == a1))
/* GtsPGEdge: graph.c */
typedef struct _GtsPGEdge GtsPGEdge;
typedef struct _GtsPGEdgeClass GtsPGEdgeClass;
struct _GtsPGEdge {
GtsGEdge gedge;
gpointer data;
};
struct _GtsPGEdgeClass {
GtsGEdgeClass parent_class;
};
#define GTS_PGEDGE(obj) GTS_OBJECT_CAST (obj,\
GtsPGEdge,\
gts_pgedge_class ())
#define GTS_PGEDGE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsPGEdgeClass,\
gts_pgedge_class())
#define GTS_IS_PGEDGE(obj) (gts_object_is_from_class (obj,\
gts_pgedge_class ()))
GtsPGEdgeClass * gts_pgedge_class (void);
GtsPGEdge * gts_pgedge_new (GtsPGEdgeClass * klass,
GtsGNode * n1,
GtsGNode * n2,
gpointer data);
/* GtsWGEdge: graph.c */
typedef struct _GtsWGEdge GtsWGEdge;
typedef struct _GtsWGEdgeClass GtsWGEdgeClass;
struct _GtsWGEdge {
GtsGEdge gedge;
gfloat weight;
};
struct _GtsWGEdgeClass {
GtsGEdgeClass parent_class;
};
#define GTS_WGEDGE(obj) GTS_OBJECT_CAST (obj,\
GtsWGEdge,\
gts_wgedge_class ())
#define GTS_WGEDGE_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsWGEdgeClass,\
gts_wgedge_class())
#define GTS_IS_WGEDGE(obj) (gts_object_is_from_class (obj,\
gts_wgedge_class ()))
GtsWGEdgeClass * gts_wgedge_class (void);
GtsWGEdge * gts_wgedge_new (GtsWGEdgeClass * klass,
GtsGNode * n1,
GtsGNode * n2,
gfloat weight);
/* GtsGraph: graph.c */
struct _GtsGraph {
GtsHashContainer object;
GtsGraphClass * graph_class;
GtsGNodeClass * node_class;
GtsGEdgeClass * edge_class;
};
struct _GtsGraphClass {
GtsHashContainerClass parent_class;
gfloat (* weight) (GtsGraph *);
};
#define GTS_GRAPH(obj) GTS_OBJECT_CAST (obj,\
GtsGraph,\
gts_graph_class ())
#define GTS_GRAPH_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsGraphClass,\
gts_graph_class())
#define GTS_IS_GRAPH(obj) (gts_object_is_from_class (obj,\
gts_graph_class ()))
GtsGraphClass * gts_graph_class (void);
GtsGraph * gts_graph_new (GtsGraphClass * klass,
GtsGNodeClass * node_class,
GtsGEdgeClass * edge_class);
void gts_graph_print_stats (GtsGraph * g,
FILE * fp);
typedef struct _GtsGraphTraverse GtsGraphTraverse;
typedef enum { GTS_BREADTH_FIRST
} GtsTraverseType;
GtsGraphTraverse * gts_graph_traverse_new (GtsGraph * g,
GtsGNode * n,
GtsTraverseType type,
gboolean reinit);
GtsGNode * gts_graph_traverse_next (GtsGraphTraverse * t);
GtsGNode * gts_graph_traverse_what_next (GtsGraphTraverse * t);
void gts_graph_traverse_destroy (GtsGraphTraverse * t);
void gts_graph_foreach_edge (GtsGraph * g,
GtsFunc func,
gpointer data);
gfloat gts_graph_weight (GtsGraph * g);
guint gts_graph_distance_sum (GtsGraph * g,
GtsGNode * center);
GtsGNode * gts_graph_farthest (GtsGraph * g,
GSList * gnodes);
guint gts_graph_edges_cut (GtsGraph * g);
gfloat gts_graph_edges_cut_weight (GtsGraph * g);
void gts_graph_write (GtsGraph * g,
FILE * fp);
void gts_graph_write_dot (GtsGraph * g,
FILE * fp);
GtsGraph * gts_graph_read (GtsFile * fp);
guint gts_graph_read_jostle (GtsGraph * g,
GtsFile * fp);
/* GtsWGraph: graph.c */
typedef struct _GtsWGraph GtsWGraph;
typedef struct _GtsWGraphClass GtsWGraphClass;
struct _GtsWGraph {
GtsGraph graph;
gfloat weight;
};
struct _GtsWGraphClass {
GtsGraphClass parent_class;
};
#define GTS_WGRAPH(obj) GTS_OBJECT_CAST (obj,\
GtsWGraph,\
gts_wgraph_class ())
#define GTS_WGRAPH_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsWGraphClass,\
gts_wgraph_class())
#define GTS_IS_WGRAPH(obj) (gts_object_is_from_class (obj,\
gts_wgraph_class ()))
GtsWGraphClass * gts_wgraph_class (void);
gfloat gts_wgraph_weight_max (GtsWGraph * wg);
/* Surface graph: graph.c */
GtsGraph * gts_surface_graph_new (GtsGraphClass * klass,
GtsSurface * s);
GtsSurface * gts_surface_graph_surface (GtsGraph * surface_graph,
GtsSurface * s);
/* Segments graph: graph.c */
GtsGraph * gts_segments_graph_new (GtsGraphClass * klass,
GSList * segments);
/* GtsGNodeSplit: pgraph.c */
typedef struct _GtsGNodeSplit GtsGNodeSplit;
typedef struct _GtsGNodeSplitClass GtsGNodeSplitClass;
struct _GtsGNodeSplit {
GtsObject object;
GtsGNode * n;
GtsObject * n1;
GtsObject * n2;
};
struct _GtsGNodeSplitClass {
GtsObjectClass parent_class;
};
#define GTS_GNODE_SPLIT(obj) GTS_OBJECT_CAST (obj,\
GtsGNodeSplit,\
gts_gnode_split_class ())
#define GTS_GNODE_SPLIT_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsGNodeSplitClass,\
gts_gnode_split_class())
#define GTS_IS_GNODE_SPLIT(obj) (gts_object_is_from_class (obj,\
gts_gnode_split_class ()))
#define GTS_GNODE_SPLIT_N1(ns) (GTS_IS_GNODE_SPLIT ((ns)->n1) ? GTS_GNODE_SPLIT ((ns)->n1)->n : GTS_GNODE ((ns)->n1))
#define GTS_GNODE_SPLIT_N2(ns) (GTS_IS_GNODE_SPLIT ((ns)->n2) ? GTS_GNODE_SPLIT ((ns)->n2)->n : GTS_GNODE ((ns)->n2))
GtsGNodeSplitClass * gts_gnode_split_class (void);
GtsGNodeSplit * gts_gnode_split_new (GtsGNodeSplitClass * klass,
GtsGNode * n,
GtsObject * n1,
GtsObject * n2);
void gts_gnode_split_collapse (GtsGNodeSplit * ns,
GtsGraph * g,
GtsWGEdgeClass * klass);
void gts_gnode_split_expand (GtsGNodeSplit * ns,
GtsGraph * g);
/* GtsPGraph: pgraph.c */
typedef struct _GtsPGraph GtsPGraph;
typedef struct _GtsPGraphClass GtsPGraphClass;
struct _GtsPGraph {
GtsObject object;
GtsGraph * g;
GPtrArray * split;
GArray * levels;
GtsGNodeSplitClass * split_class;
GtsWGEdgeClass * edge_class;
guint pos, min, level;
};
struct _GtsPGraphClass {
GtsObjectClass parent_class;
};
#define GTS_PGRAPH(obj) GTS_OBJECT_CAST (obj,\
GtsPGraph,\
gts_pgraph_class ())
#define GTS_PGRAPH_CLASS(klass) GTS_OBJECT_CLASS_CAST (klass,\
GtsPGraphClass,\
gts_pgraph_class())
#define GTS_IS_PGRAPH(obj) (gts_object_is_from_class (obj,\
gts_pgraph_class ()))
GtsPGraphClass * gts_pgraph_class (void);
GtsPGraph * gts_pgraph_new (GtsPGraphClass * klass,
GtsGraph * g,
GtsGNodeSplitClass * split_class,
GtsWGNodeClass * node_class,
GtsWGEdgeClass * edge_class,
guint min);
GtsGNodeSplit * gts_pgraph_add_node (GtsPGraph * pg);
GtsGNodeSplit * gts_pgraph_remove_node (GtsPGraph * pg);
void gts_pgraph_set_node_number (GtsPGraph *pg,
guint n);
guint gts_pgraph_get_node_number (GtsPGraph *pg);
guint gts_pgraph_min_node_number (GtsPGraph *pg);
guint gts_pgraph_max_node_number (GtsPGraph *pg);
void gts_pgraph_foreach_node (GtsPGraph *pg,
GtsFunc func,
gpointer data);
gboolean gts_pgraph_down (GtsPGraph * pg,
GtsFunc func,
gpointer data);
/* Graph partition: partition.c */
GSList * gts_graph_bubble_partition (GtsGraph * g,
guint np,
guint niter,
GtsFunc step_info,
gpointer data);
guint gts_graph_partition_edges_cut (GSList * partition);
gfloat gts_graph_partition_edges_cut_weight (GSList * partition);
void gts_graph_partition_print_stats (GSList * partition,
FILE * fp);
gfloat gts_graph_partition_balance (GSList * partition);
GSList * gts_graph_partition_clone (GSList * partition);
GSList * gts_graph_recursive_bisection (GtsWGraph * wg,
guint n,
guint ntry,
guint mmax,
guint nmin,
gfloat imbalance);
void gts_graph_partition_destroy (GSList * partition);
/* Graph bisection: partition.c */
typedef struct _GtsGraphBisection GtsGraphBisection;
struct _GtsGraphBisection {
GtsGraph * g;
GtsGraph * g1;
GtsGraph * g2;
GHashTable * bg1;
GHashTable * bg2;
};
gboolean gts_graph_bisection_check (GtsGraphBisection * bg);
GtsGraphBisection * gts_graph_ggg_bisection (GtsGraph * g,
guint ntry);
GtsGraphBisection * gts_graph_bfgg_bisection (GtsGraph * g,
guint ntry);
gdouble gts_graph_bisection_kl_refine (GtsGraphBisection * bg,
guint mmax);
gdouble gts_graph_bisection_bkl_refine (GtsGraphBisection * bg,
guint mmax,
gfloat imbalance);
GtsGraphBisection * gts_graph_bisection_new (GtsWGraph * wg,
guint ntry,
guint mmax,
guint nmin,
gfloat imbalance);
void gts_graph_bisection_destroy (GtsGraphBisection * bg,
gboolean destroy_graphs);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GTS_H__ */