Tulip 5.7.1
Large graphs analysis and drawing
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GlGraphLowDetailsRenderer.h
1/*
2 *
3 * This file is part of Tulip (https://tulip.labri.fr)
4 *
5 * Authors: David Auber and the Tulip development Team
6 * from LaBRI, University of Bordeaux
7 *
8 * Tulip is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU Lesser General Public License
10 * as published by the Free Software Foundation, either version 3
11 * of the License, or (at your option) any later version.
12 *
13 * Tulip is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16 * See the GNU General Public License for more details.
17 *
18 */
19///@cond DOXYGEN_HIDDEN
20
21#ifndef Tulip_GLGRAPHLOWDETAILSRENDERER_H
22#define Tulip_GLGRAPHLOWDETAILSRENDERER_H
23
24#include <tulip/OpenGlIncludes.h>
25
26#include <vector>
27
28#include <tulip/Observable.h>
29#include <tulip/GlGraphRenderer.h>
30
31namespace tlp {
32
33class Graph;
34class GlScene;
35class LayoutProperty;
36class ColorProperty;
37class SizeProperty;
38class BooleanProperty;
39
40/** \brief Class to display graph with very simple and very fast renderer
41 *
42 * Very high performance renderer
43 * This class display graph with :
44 * - Nodes : quads
45 * - Edges : lines
46 * Warning : this renderer doesn't work for selection
47 *
48 * See GlGraphRenderer documentation for functions documentations
49 */
50class TLP_GL_SCOPE GlGraphLowDetailsRenderer : public GlGraphRenderer, public Observable {
51
52public:
53 GlGraphLowDetailsRenderer(const GlGraphInputData *inputData);
54
55 ~GlGraphLowDetailsRenderer() override;
56
57 void draw(float lod, Camera *camera) override;
58
59protected:
60 void initEdgesArray();
61 void initTexArray(unsigned int glyph, Vec2f tex[4]);
62 void initNodesArray();
63
64 void addObservers();
65 void removeObservers();
66 void updateObservers();
67 void treatEvent(const Event &ev) override;
68
69 GlScene *fakeScene;
70
71 bool buildVBO;
72
73 std::vector<Vec2f> points;
74 std::vector<Color> colors;
75 std::vector<GLuint> indices;
76
77 std::vector<Vec2f> quad_points;
78 std::vector<Color> quad_colors;
79 std::vector<GLuint> quad_indices;
80
81 Graph *observedGraph;
82 LayoutProperty *observedLayoutProperty;
83 ColorProperty *observedColorProperty;
84 SizeProperty *observedSizeProperty;
85 BooleanProperty *observedSelectionProperty;
86};
87} // namespace tlp
88
89#endif
90///@endcond