OGLBoxMesh.cpp

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/*
 * Copyright (C) <2012-2024> <EDF-DTG> <FRANCE>
 * This file is part of Code_TYMPAN (R).
 * Code_TYMPAN (R) is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * Code_TYMPAN (R) 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 General Public License for more details.
 * You should have received a copy of the GNU General Public License along
 * with Code_TYMPAN (R). If not, see <https://www.gnu.org/licenses/>.
 */
 
#include "OGLBoxMesh.h"
#include "gui/tools/OGLMesh.h"
#include "gui/tools/OGLSimpleMaterial.h"
#include "models/common/3d.h"
#include <qvector3d.h>
 
OGLBoxMesh::OGLBoxMesh(const QVector3D& dimensions)
{
    setDimensions(dimensions);
    _primitiveType = OGLPrivimitiveType::Lines;
}
 
void OGLBoxMesh::setDimensions(const QVector3D& dimensions)
{
    _dimensions = dimensions;
    QVector3D halfDimensions = dimensions / 2;
 
    // 8 corners of the box
    _vertices = {
        QVector3D(1, -1, -1) * halfDimensions,  // 0
        QVector3D(-1, -1, -1) * halfDimensions, // 1
        QVector3D(-1, 1, -1) * halfDimensions,  // 2
        QVector3D(1, 1, -1) * halfDimensions,   // 3
        QVector3D(1, -1, 1) * halfDimensions,   // 4
        QVector3D(-1, -1, 1) * halfDimensions,  // 5
        QVector3D(-1, 1, 1) * halfDimensions,   // 6
        QVector3D(1, 1, 1) * halfDimensions,    // 7
    };
 
    // Line indices to draw the box edges
    _indices = {
        0, 1, 1, 2, 2, 3, 3, 0, // bottom face
        4, 5, 5, 6, 6, 7, 7, 4, // top face
        0, 4, 1, 5, 2, 6, 3, 7  // vertical edges
    };
    // compute boundingBox
    recomputeBoundingBox();
}
 
const QVector3D& OGLBoxMesh::dimensions() const
{
    return _dimensions;
}