Premiers essais d'utilisation de la souris pour déplacer le plan de clipping....

Premiers essais d'utilisation de la souris pour déplacer le plan de clipping. Il reste beaucoup de boulot tout de même.

Apps/Tuto/stage_shader.cpp

@@ -81,7 +81,7 @@ void StageShader::slot_doubleSpinBox_Plane(double c)
 	float bPlane = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_bPlane->value();
 	float cPlane = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_cPlane->value();
 	float dPlane = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_dPlane->value();
-	m_shader->setPlaneClippingParams(Geom::Vec4f(aPlane, bPlane, cPlane, dPlane));
+	m_shader->setClippingPlaneEquation(Geom::Vec4f(aPlane, bPlane, cPlane, dPlane));
 	updateGL();
 }
 

Apps/Tuto/stage_shader_number_two.cpp

+/*******************************************************************************
+* 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 "stage_shader_number_two.h"
+
+Stage_shader_number_two::Stage_shader_number_two() :
+	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 ;
+	vertexScaleFactor = 1.0f ;
+	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 Stage_shader_number_two::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)) ) ;
+
+	setCallBack(dock.doubleSpinBox_plane_a, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_Plane(double)));
+	setCallBack(dock.doubleSpinBox_plane_b, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_Plane(double)));
+	setCallBack(dock.doubleSpinBox_plane_c, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_Plane(double)));
+	setCallBack(dock.doubleSpinBox_plane_d, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_Plane(double)));
+
+	setCallBack(dock.doubleSpinBox_color_attenuation, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_ColorAttenuationFactor(double)));
+}
+
+void Stage_shader_number_two::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(true) ; // true sets on double sided lighting
+	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) ;
+
+	m_phongShader->addPlaneClippingToShaderSource();
+}
+
+void Stage_shader_number_two::cb_redraw()
+{
+	if(m_drawVertices)
+	{
+		float size = vertexBaseSize * vertexScaleFactor ;
+		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) ;
+	}
+
+	m_phongShader->displayClippingPlane();
+}
+
+void Stage_shader_number_two::cb_Open()
+{
+	std::string filters("all (*.*);; trian (*.trian);; ctm (*.ctm);; off (*.off);; ply (*.ply)") ;
+	std::string filename = selectFile("Open Mesh", "", filters) ;
+
+	importMesh(filename) ;
+	updateGL() ;
+}
+
+void Stage_shader_number_two::cb_keyPress(int code)
+{
+
+}
+
+void Stage_shader_number_two::cb_mousePress(int button, int x, int y)
+{
+	m_mouseLastX = x;
+	m_mouseLastY = y;
+}
+
+void Stage_shader_number_two::cb_mouseMove(int button, int x, int y)
+{
+	if (Shift())
+	{
+		if (button == Qt::LeftButton)
+		{
+			Geom::Vec4f clipPlane = m_phongShader->getClippingPlaneEquation();
+			clipPlane[0] += (m_mouseLastX - x)/20.0;
+			clipPlane[1] += (m_mouseLastY - y)/20.0;
+
+			m_phongShader->setClippingPlaneEquation(clipPlane);
+
+			updateGL();
+		}
+	}
+
+	m_mouseLastX = x;
+	m_mouseLastY = y;
+}
+
+void Stage_shader_number_two::importMesh(std::string& filename)
+{
+	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]) ;
+
+	m_render->initPrimitives<PFP>(myMap, allDarts, Algo::Render::GL2::POINTS) ;
+	m_render->initPrimitives<PFP>(myMap, allDarts, Algo::Render::GL2::LINES) ;
+	m_render->initPrimitives<PFP>(myMap, allDarts, Algo::Render::GL2::TRIANGLES) ;
+
+	bb = Algo::Geometry::computeBoundingBox<PFP>(myMap, position) ;
+	normalBaseSize = bb.diagSize() / 100.0f ;
+	vertexBaseSize = normalBaseSize * 2.0f ;
+
+	if(!normal.isValid())
+		normal = myMap.addAttribute<PFP::VEC3>(VERTEX, "normal") ;
+
+	Algo::Geometry::computeNormalVertices<PFP>(myMap, position, normal) ;
+
+	m_positionVBO->updateData(position) ;
+	m_normalVBO->updateData(normal) ;
+
+	setParamObject(bb.maxSize(), bb.center().data()) ;
+	updateGLMatrices() ;
+}
+
+void Stage_shader_number_two::slot_drawVertices(bool b)
+{
+	m_drawVertices = b ;
+	updateGL() ;
+}
+
+void Stage_shader_number_two::slot_verticesSize(int i)
+{
+	vertexScaleFactor = i / 50.0f ;
+	updateGL() ;
+}
+
+void Stage_shader_number_two::slot_drawEdges(bool b)
+{
+	m_drawEdges = b ;
+	updateGL() ;
+}
+
+void Stage_shader_number_two::slot_drawFaces(bool b)
+{
+	m_drawFaces = b ;
+	updateGL() ;
+}
+
+void Stage_shader_number_two::slot_faceLighting(int i)
+{
+	m_renderStyle = i ;
+	updateGL() ;
+}
+
+void Stage_shader_number_two::slot_drawNormals(bool b)
+{
+	m_drawNormals = b ;
+	updateGL() ;
+}
+
+void Stage_shader_number_two::slot_normalsSize(int i)
+{
+	normalScaleFactor = i / 50.0f ;
+	updateGL() ;
+}
+
+void Stage_shader_number_two::slot_doubleSpinBox_Plane(double c)
+{
+	float aPlane = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_plane_a->value();
+	float bPlane = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_plane_b->value();
+	float cPlane = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_plane_c->value();
+	float dPlane = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_plane_d->value();
+	m_phongShader->setClippingPlaneEquation(Geom::Vec4f(aPlane, bPlane, cPlane, dPlane));
+	updateGL();
+}
+
+void Stage_shader_number_two::slot_doubleSpinBox_ColorAttenuationFactor(double c)
+{
+	m_phongShader->setClippingColorAttenuationFactor((float)c);
+	updateGL();
+}
+
+/**********************************************************************************************
+ *                                      MAIN FUNCTION                                         *
+ **********************************************************************************************/
+
+int main(int argc, char **argv)
+{
+	// comment
+	QApplication app(argc, argv) ;
+
+	Stage_shader_number_two 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() ;
+}
+

Apps/Tuto/stage_shader_number_two.h

+/*******************************************************************************
+* 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 <iostream>
+
+#include "Utils/qtSimple.h"
+#include "ui_stage_shader_number_two.h"
+#include "Utils/qtui.h"
+
+#include "Topology/generic/parameters.h"
+#include "Topology/map/map2.h"
+#include "Topology/generic/embeddedMap2.h"
+
+#include "Geometry/vector_gen.h"
+#include "Geometry/matrix.h"
+
+#include "Algo/Import/import.h"
+
+#include "Algo/Render/GL2/mapRender.h"
+
+#include "Utils/Shaders/shaderPhong.h"
+#include "Utils/Shaders/shaderFlat.h"
+#include "Utils/Shaders/shaderSimpleColor.h"
+#include "Utils/Shaders/shaderVectorPerVertex.h"
+#include "Utils/pointSprite.h"
+
+#include "Algo/Geometry/boundingbox.h"
+#include "Algo/Geometry/normal.h"
+
+using namespace CGoGN ;
+
+struct PFP: public PFP_STANDARD
+{
+	// definition of the map
+	typedef EmbeddedMap2<Map2> MAP ;
+};
+
+typedef PFP::MAP MAP ;
+
+class Stage_shader_number_two : public Utils::QT::SimpleQT
+{
+	Q_OBJECT
+
+public:
+	MAP myMap ;
+	SelectorTrue allDarts ;
+
+	Utils::QT::uiDockInterface dock ;
+
+	enum renderMode { FLAT, PHONG } ;
+
+	Geom::Vec4f colDif ;
+	Geom::Vec4f colSpec ;
+	Geom::Vec4f colClear ;
+	Geom::Vec4f colNormal ;
+
+	float shininess ;
+
+	Geom::BoundingBox<PFP::VEC3> bb ;
+	float normalBaseSize ;
+	float normalScaleFactor ;
+	float vertexBaseSize ;
+	float vertexScaleFactor ;
+	float faceShrinkage ;
+
+	int m_renderStyle ;
+	bool m_drawVertices ;
+	bool m_drawEdges ;
+	bool m_drawFaces ;
+	bool m_drawNormals ;
+
+	PFP::TVEC3 position ;
+	PFP::TVEC3 normal ;
+
+	Algo::Render::GL2::MapRender* m_render ;
+
+	Utils::VBO* m_positionVBO ;
+	Utils::VBO* m_normalVBO ;
+
+	Utils::ShaderPhong* m_phongShader ;
+	Utils::ShaderFlat* m_flatShader ;
+	Utils::ShaderVectorPerVertex* m_vectorShader ;
+	Utils::ShaderSimpleColor* m_simpleColorShader ;
+	Utils::PointSprite* m_pointSprite ;
+
+	Stage_shader_number_two() ;
+
+	void initGUI() ;
+
+	void cb_initGL() ;
+	void cb_redraw() ;
+	void cb_Open() ;
+
+	void cb_keyPress(int code);
+	void cb_mousePress(int button, int x, int y);
+	void cb_mouseMove(int button, int x, int y);
+
+	void importMesh(std::string& filename) ;
+
+	int m_mouseLastX, m_mouseLastY;
+
+public slots:
+	void slot_drawVertices(bool b) ;
+	void slot_verticesSize(int i) ;
+	void slot_drawEdges(bool b) ;
+	void slot_drawFaces(bool b) ;
+	void slot_faceLighting(int i) ;
+	void slot_drawNormals(bool b) ;
+	void slot_normalsSize(int i) ;
+	void slot_doubleSpinBox_Plane(double c);
+	void slot_doubleSpinBox_ColorAttenuationFactor(double c);
+};
+

Apps/Tuto/stage_shader_number_two.ui

+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>DockWidget</class>
+ <widget class="QDockWidget" name="DockWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>174</width>
+    <height>393</height>
+   </rect>
+  </property>
+  <property name="minimumSize">
+   <size>
+    <width>174</width>
+    <height>393</height>
+   </size>
+  </property>
+  <property name="windowTitle">
+   <string>Commands</string>
+  </property>
+  <widget class="QWidget" name="dockWidgetContents">
+   <layout class="QVBoxLayout" name="verticalLayout_3">
+    <item>
+     <widget class="QTabWidget" name="tabWidget">
+      <property name="currentIndex">
+       <number>1</number>
+      </property>
+      <widget class="QWidget" name="tab">
+       <attribute name="title">
+        <string>Visu</string>
+       </attribute>
+       <layout class="QVBoxLayout" name="verticalLayout">
+        <item>
+         <widget class="QCheckBox" name="check_drawVertices">
+          <property name="text">
+           <string>draw vertices</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QSlider" name="slider_verticesSize">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QCheckBox" name="check_drawEdges">
+          <property name="text">
+           <string>draw edges</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QCheckBox" name="check_drawFaces">
+          <property name="text">
+           <string>draw faces</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QComboBox" name="combo_faceLighting">
+          <item>
+           <property name="text">
+            <string>FLAT</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>PHONG</string>
+           </property>
+          </item>
+         </widget>
+        </item>
+        <item>
+         <widget class="QCheckBox" name="check_drawNormals">
+          <property name="text">
+           <string>draw normals</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QSlider" name="slider_normalsSize">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <spacer name="verticalSpacer">
+          <property name="orientation">
+           <enum>Qt::Vertical</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>20</width>
+            <height>40</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+       </layout>
+      </widget>
+      <widget class="QWidget" name="tab_2">
+       <attribute name="title">
+        <string>Clipping</string>
+       </attribute>
+       <widget class="QLabel" name="label_Plane">
+        <property name="geometry">
+         <rect>
+          <x>10</x>
+          <y>10</y>
+          <width>69</width>
+          <height>18</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>Plane :</string>
+        </property>
+       </widget>
+       <widget class="QLabel" name="label_plane_a">
+        <property name="geometry">
+         <rect>
+          <x>20</x>
+          <y>30</y>
+          <width>21</width>
+          <height>18</height>
+         </rect>
+        </property>
+        <property name="text">
+         <string>a :</string>
+        </property>
+       </widget>
+       <widget class="QDoubleSpinBox" name="doubleSpinBox_plane_a">
+        <property name="geometry">