OGLArrayMesh.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 "gui/tools/OGLArrayMesh.h"
#include "gui/tools/OGLMesh.h"
#include "gui/tools/OGLSimpleMaterial.h"
#include <cassert>
#include <memory>
#include <qcolor.h>
#include <vector>
 
void OGLArrayMesh::fromMeshVertices(const OGLMesh& sourceMesh)
{
    setVertices(sourceMesh.vertices());
    setTextureCoordinates(sourceMesh.textureCoordinates());
    setNormals(sourceMesh.normals());
    _primitiveType = OGLPrivimitiveType::Points;
    std::vector<unsigned int> indices(sourceMesh.vertices().size());
    std::iota(indices.begin(), indices.end(), 0);
    setIndices(indices);
};
 
void OGLArrayMesh::fromQuadMeshEdges(const OGLMesh& sourceMesh)
{
    assert(sourceMesh.primitiveType() == OGLPrivimitiveType::Quads);
    setVertices(sourceMesh.vertices());
    setTextureCoordinates(sourceMesh.textureCoordinates());
    setNormals(sourceMesh.normals());
    _primitiveType = OGLPrivimitiveType::Lines;
    std::vector<unsigned int> indices(sourceMesh.vertices().size() * 2);
    int quadCount = sourceMesh.indices().size() / 4;
    for (int quadIndex = 0; quadIndex < quadCount; quadIndex++)
    {
        for (int i = 0; i < 4; i++)
        {
            indices[quadIndex * 8 + i * 2] = quadIndex * 4 + i;
            indices[quadIndex * 8 + i * 2 + 1] = quadIndex * 4 + (i + 1) % 4;
        }
    }
    setIndices(indices);
}
 
void OGLArrayMesh::setVertices(const std::vector<QVector3D>& vertices)
{
    _vertices = vertices;
    recomputeBoundingBox();
}
 
void OGLArrayMesh::setVerticesColors(const std::vector<QColor>& verticesColors)
{
    _verticesColors.clear();
    _verticesColors.reserve(verticesColors.size() * 4);
    for (const QColor& color : verticesColors)
    {
        _verticesColors.push_back(color.redF());
        _verticesColors.push_back(color.greenF());
        _verticesColors.push_back(color.blueF());
        _verticesColors.push_back(color.alphaF());
    }
}
 
void OGLArrayMesh::setNormals(const std::vector<QVector3D>& normals)
{
    _normals = normals;
}
 
void OGLArrayMesh::setTextureCoordinates(const std::vector<QVector2D>& textureCoordinates)
{
    _textureCoordinates = textureCoordinates;
}
 
void OGLArrayMesh::setIndices(const std::vector<unsigned int>& indices)
{
    _indices = indices;
}
 
void OGLArrayMesh::setPrimitiveType(OGLPrivimitiveType primitiveType)
{
    _primitiveType = primitiveType;
}