viewer.cpp 8.69 KB
Newer Older
Pierre Kraemer's avatar
Pierre Kraemer committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
* version 0.1                                                                  *
* Copyright (C) 2009, IGG Team, LSIIT, University of Strasbourg                *
*                                                                              *
* This library is free software; you can redistribute it and/or modify it      *
* under the terms of the GNU Lesser General Public License as published by the *
* Free Software Foundation; either version 2.1 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 Lesser General Public License  *
* for more details.                                                            *
*                                                                              *
* You should have received a copy of the GNU Lesser General Public License     *
* along with this library; if not, write to the Free Software Foundation,      *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
*                                                                              *
* Web site: https://iggservis.u-strasbg.fr/CGoGN/                              *
* Contact information: cgogn@unistra.fr                                        *
*                                                                              *
*******************************************************************************/

#include "viewer.h"

Viewer::Viewer() :
	m_renderStyle(FLAT),
	m_drawVertices(false),
	m_drawEdges(false),
	m_drawFaces(true),
	m_drawNormals(false),
	m_render(NULL),
	m_phongShader(NULL),
	m_flatShader(NULL),
	m_vectorShader(NULL),
	m_simpleColorShader(NULL),
	m_pointSprite(NULL)
{
	normalScaleFactor = 1.0f ;
Sylvain Thery's avatar
MAJ MC    
Sylvain Thery committed
41
	vertexScaleFactor = 0.1f ;
Pierre Kraemer's avatar
Pierre Kraemer committed
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
	faceShrinkage = 1.0f ;

	colClear = Geom::Vec4f(0.2f, 0.2f, 0.2f, 0.1f) ;
	colDif = Geom::Vec4f(0.8f, 0.9f, 0.7f, 1.0f) ;
	colSpec = Geom::Vec4f(0.9f, 0.9f, 0.9f, 1.0f) ;
	colNormal = Geom::Vec4f(1.0f, 0.0f, 0.0f, 1.0f) ;
	shininess = 80.0f ;
}

void Viewer::initGUI()
{
    setDock(&dock) ;

    dock.check_drawVertices->setChecked(false) ;
    dock.check_drawEdges->setChecked(false) ;
    dock.check_drawFaces->setChecked(true) ;
    dock.check_drawNormals->setChecked(false) ;

    dock.slider_verticesSize->setVisible(false) ;
    dock.slider_normalsSize->setVisible(false) ;

    dock.slider_verticesSize->setSliderPosition(50) ;
    dock.slider_normalsSize->setSliderPosition(50) ;

	setCallBack( dock.check_drawVertices, SIGNAL(toggled(bool)), SLOT(slot_drawVertices(bool)) ) ;
	setCallBack( dock.slider_verticesSize, SIGNAL(valueChanged(int)), SLOT(slot_verticesSize(int)) ) ;
	setCallBack( dock.check_drawEdges, SIGNAL(toggled(bool)), SLOT(slot_drawEdges(bool)) ) ;
	setCallBack( dock.check_drawFaces, SIGNAL(toggled(bool)), SLOT(slot_drawFaces(bool)) ) ;
	setCallBack( dock.combo_faceLighting, SIGNAL(currentIndexChanged(int)), SLOT(slot_faceLighting(int)) ) ;
	setCallBack( dock.check_drawNormals, SIGNAL(toggled(bool)), SLOT(slot_drawNormals(bool)) ) ;
	setCallBack( dock.slider_normalsSize, SIGNAL(valueChanged(int)), SLOT(slot_normalsSize(int)) ) ;
}

void Viewer::cb_initGL()
{
	Utils::GLSLShader::setCurrentOGLVersion(2) ;

	setFocal(5.0f) ;

	m_render = new Algo::Render::GL2::MapRender() ;

	m_positionVBO = new Utils::VBO() ;
	m_normalVBO = new Utils::VBO() ;

	m_phongShader = new Utils::ShaderPhong() ;
	m_phongShader->setAttributePosition(m_positionVBO) ;
	m_phongShader->setAttributeNormal(m_normalVBO) ;
	m_phongShader->setAmbiant(colClear) ;
	m_phongShader->setDiffuse(colDif) ;
	m_phongShader->setSpecular(colSpec) ;
	m_phongShader->setShininess(shininess) ;

	m_flatShader = new Utils::ShaderFlat() ;
	m_flatShader->setAttributePosition(m_positionVBO) ;
	m_flatShader->setAmbiant(colClear) ;
	m_flatShader->setDiffuse(colDif) ;
	m_flatShader->setExplode(faceShrinkage) ;

	m_vectorShader = new Utils::ShaderVectorPerVertex() ;
	m_vectorShader->setAttributePosition(m_positionVBO) ;
	m_vectorShader->setAttributeVector(m_normalVBO) ;
	m_vectorShader->setColor(colNormal) ;

	m_simpleColorShader = new Utils::ShaderSimpleColor() ;
	m_simpleColorShader->setAttributePosition(m_positionVBO) ;
	Geom::Vec4f c(0.1f, 0.1f, 0.1f, 1.0f) ;
	m_simpleColorShader->setColor(c) ;

	m_pointSprite = new Utils::PointSprite() ;
	m_pointSprite->setAttributePosition(m_positionVBO) ;

	registerShader(m_phongShader) ;
	registerShader(m_flatShader) ;
	registerShader(m_vectorShader) ;
	registerShader(m_simpleColorShader) ;
	registerShader(m_pointSprite) ;
}

void Viewer::cb_redraw()
{
	if(m_drawVertices)
	{
Sylvain Thery's avatar
MAJ MC    
Sylvain Thery committed
124
		float size = vertexScaleFactor ;
Pierre Kraemer's avatar
Pierre Kraemer committed
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
		m_pointSprite->setSize(size) ;
		m_pointSprite->predraw(Geom::Vec3f(0.0f, 0.0f, 1.0f)) ;
		m_render->draw(m_pointSprite, Algo::Render::GL2::POINTS) ;
		m_pointSprite->postdraw() ;
	}

	if(m_drawEdges)
	{
		glLineWidth(1.0f) ;
		m_render->draw(m_simpleColorShader, Algo::Render::GL2::LINES) ;
	}

	if(m_drawNormals)
	{
		float size = normalBaseSize * normalScaleFactor ;
		m_vectorShader->setScale(size) ;
		glLineWidth(1.0f) ;
		m_render->draw(m_vectorShader, Algo::Render::GL2::POINTS) ;
	}

	if(m_drawFaces)
	{
		glPolygonMode(GL_FRONT_AND_BACK, GL_FILL) ;
		glEnable(GL_LIGHTING) ;
		glEnable(GL_POLYGON_OFFSET_FILL) ;
		glPolygonOffset(1.0f, 1.0f) ;
		switch(m_renderStyle)
		{
			case FLAT :
				m_flatShader->setExplode(faceShrinkage) ;
				m_render->draw(m_flatShader, Algo::Render::GL2::TRIANGLES) ;
				break ;
			case PHONG :
				m_render->draw(m_phongShader, Algo::Render::GL2::TRIANGLES) ;
				break ;
		}
		glDisable(GL_POLYGON_OFFSET_FILL) ;
	}
}

void Viewer::cb_Open()
{
	std::string filters("all (*.*);; trian (*.trian);; ctm (*.ctm);; off (*.off);; ply (*.ply)") ;
	std::string filename = selectFile("Open Mesh", "", filters) ;
169
170
	if (filename.empty())
		return ;
Pierre Kraemer's avatar
Pierre Kraemer committed
171
172
173
174
175

	importMesh(filename) ;
	updateGL() ;
}

176
177
178
179
180
181
182
void Viewer::cb_Save()
{
	std::string filters("off (*.off)") ;
	std::string filename = selectFileSave("Save Mesh", "", filters) ;
	Algo::Export::exportOFF<PFP>(myMap, position, filename.c_str(), allDarts) ;
}

Pierre Kraemer's avatar
Pierre Kraemer committed
183
184
void Viewer::importMesh(std::string& filename)
{
185
186
	myMap.clear(true) ;

187
188
189
190
191
192
193
194
195
	size_t pos = filename.rfind(".");    // position of "." in filename
	std::string extension = filename.substr(pos);

	if (extension == std::string(".map"))
	{
		myMap.loadMapBin(filename);
		position = myMap.getAttribute<PFP::VEC3>(VERTEX, "position") ;
	}
	else
Pierre Kraemer's avatar
Pierre Kraemer committed
196
	{
197
198
199
200
201
202
203
		std::vector<std::string> attrNames ;
		if(!Algo::Import::importMesh<PFP>(myMap, filename.c_str(), attrNames))
		{
			CGoGNerr << "could not import " << filename << CGoGNendl ;
			return;
		}
		position = myMap.getAttribute<PFP::VEC3>(VERTEX, attrNames[0]) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
204
	}
205

Pierre Kraemer's avatar
Pierre Kraemer committed
206
207
208

	m_render->initPrimitives<PFP>(myMap, allDarts, Algo::Render::GL2::POINTS) ;
	m_render->initPrimitives<PFP>(myMap, allDarts, Algo::Render::GL2::LINES) ;
209
	m_render->initPrimitives<PFP>(myMap, allDarts, Algo::Render::GL2::TRIANGLES) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
210

211
212
	bb = Algo::Geometry::computeBoundingBox<PFP>(myMap, position) ;
	normalBaseSize = bb.diagSize() / 100.0f ;
Sylvain Thery's avatar
MAJ MC    
Sylvain Thery committed
213
214
//	vertexBaseSize = normalBaseSize /5.0f ;

Pierre Kraemer's avatar
Pierre Kraemer committed
215
	if(!normal.isValid())
216
		normal = myMap.addAttribute<PFP::VEC3>(VERTEX, "normal") ;
Pierre Kraemer's avatar
Pierre Kraemer committed
217
218
219
220
221
222

	Algo::Geometry::computeNormalVertices<PFP>(myMap, position, normal) ;

	m_positionVBO->updateData(position) ;
	m_normalVBO->updateData(normal) ;

223
	setParamObject(bb.maxSize(), bb.center().data()) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
224
225
226
227
228
229
230
231
232
233
234
	updateGLMatrices() ;
}

void Viewer::slot_drawVertices(bool b)
{
	m_drawVertices = b ;
	updateGL() ;
}

void Viewer::slot_verticesSize(int i)
{
Sylvain Thery's avatar
MAJ MC    
Sylvain Thery committed
235
	vertexScaleFactor = i / 500.0f ;
Pierre Kraemer's avatar
Pierre Kraemer committed
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
	updateGL() ;
}

void Viewer::slot_drawEdges(bool b)
{
	m_drawEdges = b ;
	updateGL() ;
}

void Viewer::slot_drawFaces(bool b)
{
	m_drawFaces = b ;
	updateGL() ;
}

void Viewer::slot_faceLighting(int i)
{
	m_renderStyle = i ;
	updateGL() ;
}

void Viewer::slot_drawNormals(bool b)
{
	m_drawNormals = b ;
	updateGL() ;
}

void Viewer::slot_normalsSize(int i)
{
	normalScaleFactor = i / 50.0f ;
	updateGL() ;
}

/**********************************************************************************************
 *                                      MAIN FUNCTION                                         *
 **********************************************************************************************/

int main(int argc, char **argv)
{
	QApplication app(argc, argv) ;

	Viewer sqt ;
	sqt.setGeometry(0, 0, 1000, 800) ;
 	sqt.show() ;

	if(argc == 2)
	{
		std::string filename(argv[1]) ;
		sqt.importMesh(filename) ;
	}

	sqt.initGUI() ;

	return app.exec() ;
}