2 * Copyright (C) 2009 Andy Spencer <spenceal@rose-hulman.edu>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #ifndef __GIS_OBJECT_H__
19 #define __GIS_OBJECT_H__
25 typedef struct _GisProjection GisProjection;
26 typedef struct _GisPoint GisPoint;
28 struct _GisProjection {
36 struct { gdouble lat, lon, elev; };
40 struct { gdouble x, y, z; };
44 struct { gdouble px, py, pz; };
48 struct { gdouble nx, ny, nz; };
52 struct { gdouble cx, cy, xz; };
58 #define GIS_OBJECT(object) ((GisObject *)object)
59 #define GIS_TRIANGLE(triangle) ((GisTriangle*)triangle)
60 #define GIS_QUAD(quad) ((GisQuad *)quad)
61 #define GIS_CALLBACK(callback) ((GisCallback*)callback)
62 #define GIS_MARKER(marker) ((GisMarker *)marker)
72 typedef struct _GisObject GisObject;
73 typedef struct _GisTriangle GisTriangle;
74 typedef struct _GisQuad GisQuad;
75 typedef struct _GisCallback GisCallback;
76 typedef struct _GisMarker GisMarker;
78 typedef gpointer (*GisCallbackFunc)(GisCallback *callback, gpointer user_data);
98 GisCallbackFunc callback;
109 /* Support functions */
110 #define gis_object_center(object) \
111 (&GIS_OBJECT(object)->center)
113 GisPoint *gis_point_new();
114 void gis_point_set_lle(GisPoint *point, gdouble lat, gdouble lon, gdouble elev);
115 void gis_point_set_xyz(GisPoint *point, gdouble x, gdouble y, gdouble z);
116 void gis_point_set_coords(GisPoint *point, gdouble x, gdouble y);
117 void gis_point_project(GisPoint *point, GisProjection *proj);
118 GisPoint *gis_point_ref(GisPoint *point);
119 void gis_point_unref(GisPoint *point);
121 GisTriangle *gis_triangle_new(GisPoint *a, GisPoint *b, GisPoint *c, guint tex);
122 void gis_triangle_free(GisTriangle *tri);
124 GisQuad *gis_quad_new(GisPoint *a, GisPoint *b, GisPoint *c, GisPoint *d, guint tex);
125 void gis_quad_free(GisQuad *quad);
127 GisCallback *gis_callback_new(GisCallbackFunc callback, gpointer user_data);
128 void gis_callback_free(GisCallback *cb);
130 GisMarker *gis_marker_new(const gchar *label);
131 void gis_marker_free(GisMarker *marker);