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geometryengine.cpp
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geometryengine.cpp
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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "geometryengine.h"
GeometryEngine::GeometryEngine()
{
}
GeometryEngine::~GeometryEngine()
{
}
void GeometryEngine::init()
{
initializeGLFunctions();
glEnable(GL_COLOR_MATERIAL); // color material
glLineWidth(2.0);
glPointSize(8.0);
}
void UTILS_color_hue_to_rgb (float hue, float *rgb)
{
static float RED = 0.0;
static float GRN = 1.0 / 3.0;
static float BLU = 2.0 / 3.0;
rgb[0] = (hue < 0.5) ? hue - RED : 1.0 - hue;
rgb[0] = 1.0 - (3.0 * rgb[0]);
if (rgb[0] < 0.0) rgb[0] = 0.0;
rgb[1] = (hue > GRN) ? hue - GRN : GRN - hue;
rgb[1] = 1.0 - (3.0 * rgb[1]);
if (rgb[1] < 0.0) rgb[1] = 0.0;
rgb[2] = (hue > BLU) ? hue - BLU : BLU - hue;
rgb[2] = 1.0 - (3.0 * rgb[2]);
if (rgb[2] < 0.0) rgb[2] = 0.0;
return;
}
void GeometryEngine::drawBaseMesh(BaseMesh* mesh, QGLWidget* glWidget, unsigned int flags)
{
if (mesh == NULL) return;
glDisable(GL_TEXTURE_2D);
glDisable(GL_LIGHTING);
glEnable(GL_DEPTH_TEST);
QVector<Edge *> edges = mesh->GetEdges();
for(int i=0;i<edges.size();i++)
{
float UT_color[3];
if(edges[i]->GetFlag()==1)
glColor3f(1.0,0.0,0.0);
else
if(edges[i]->GetFlag()==-1)
glColor3f(0.0,1.0,0.0);
else
glColor3f(0.0,0.0,1.0);
Vertex* start_v = edges[i]->GetStart();
Vertex* end_v = edges[i]->GetEnd();
glBegin(GL_LINES);
glVertex3f(start_v->x(),start_v->y(),start_v->z());
glVertex3f(end_v->x(),end_v->y(),end_v->z());
glEnd();
// if(glWidget)
// {
// glDisable(GL_DEPTH_TEST);
// glColor3f(0.0, 0.0, 0.0);
// QFont m_font;
// m_font.setPointSize(15);
// QString cur = QString("%1").arg(edges[i]->Weight(),0,'f',3);
// glWidget->renderText((start_v->x()+end_v->x())/2, (start_v->y()+end_v->y())/2, (start_v->z()+end_v->z())/2,cur,m_font);
// }
}
float UT_color[3];
QVector <Vertex*> verts = mesh->GetVertices();
glBegin(GL_POINTS);
for (int i=0; i<verts.size(); ++i){
UTILS_color_hue_to_rgb(verts[i]->Value()/720.0,UT_color);
glColor3fv(UT_color);
glVertex3f(verts[i]->x(), verts[i]->y(), verts[i]->z());
}
glEnd();
if (flags&SHADED)
{
QVector <Face*> faces = mesh->GetFaces();
for (int i=0; i<faces.size(); ++i) {
QVector <Vertex* > vertices = faces[i]->GetVertices();
float UT_color[3];
glBegin(GL_POLYGON);
for (int j=0; j<vertices.size(); ++j)
{
glColor4f(vertices[j]->Value(), vertices[j]->Value(), vertices[j]->Value(), 1);
UTILS_color_hue_to_rgb(vertices[j]->Value()/720.0,UT_color);
glColor3fv(UT_color);
glVertex3f(vertices[j]->x(), vertices[j]->y(), vertices[j]->z());
}
glEnd();
}
}
if (flags&VERTEX_DATA)
{
glDisable(GL_DEPTH_TEST);
glColor3f(0.0, 0.0, 0.0);
QFont m_font;
m_font.setPointSize(15);
for (int i=0; i<verts.size(); ++i) {
QString cur = QString("%1").arg(verts[i]->Value(),0,'f',3);
glWidget->renderText(verts[i]->x(), verts[i]->y(), verts[i]->z(),cur,m_font);
}
}
/*
QVector <Face*> faces = mesh->GetFaces();
for (int i=0; i<faces.size(); ++i) {
QVector <Vertex* > vertices = faces[i]->GetVertices();
float UT_color[3];
// glBegin(GL_LINE_LOOP);
// for (int j=0; j<vertices.size(); ++j)
// {
//// glColor4f(vertices[j]->Value(), vertices[j]->Value(), vertices[j]->Value(), 1);
// UTILS_color_hue_to_rgb(vertices[j]->Value()/720.0,UT_color);
// glColor3fv(UT_color);
// glVertex3f(vertices[j]->x(), vertices[j]->y(), vertices[j]->z());
// }
// glEnd();
glBegin(GL_POINTS);
for (int j=0; j<vertices.size(); ++j)
{
// glColor4f(vertices[j]->Value(), vertices[j]->Value(), vertices[j]->Value(), 1);
UTILS_color_hue_to_rgb(vertices[j]->Value()/720.0,UT_color);
glColor3fv(UT_color);
glVertex3f(vertices[j]->x(), vertices[j]->y(), vertices[j]->z());
}
glEnd();
// glColor4f(1.0, 1.0, 1.0, 0.5);
// for (int j=0; j<faces.size(); ++j)
// {
// glBegin(GL_POLYGON);
// QVector<Vertex*> f_vertices = faces[i]->GetVertices();
// for(int k=0;k<f_vertices.size();k++)
// {
// UTILS_color_hue_to_rgb(f_vertices[k]->Value()/720.0,UT_color);
// glColor3fv(UT_color);
// glVertex3f(f_vertices[k]->x(), f_vertices[k]->y(), f_vertices[k]->z());
// }
// glEnd();
// }
if(glWidget && (flags&VERTEX_DATA))
{
glDisable(GL_DEPTH_TEST);
glColor3f(0.0, 0.0, 0.0);
QFont m_font;
m_font.setPointSize(15);
for (int j=0; j<vertices.size(); ++j)
{
QString cur = QString("%1").arg(vertices[j]->Value(),0,'f',3);
glWidget->renderText(vertices[j]->x(), vertices[j]->y(), vertices[j]->z(),cur,m_font);
}
}
}*/
}