OGLGrid.cpp

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/*
 * Copyright (C) <2012> <EDF-R&D> <FRANCE>
 * This program 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 2 of the License, or
 * (at your option) any later version.
 * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
/*
 *
 */
 
#include "OGLGrid.h"
 
#if _WIN32
    #include <windows.h>
#endif //_WIN32
 
#include <GL/gl.h>
 
#include "Tympan/core/color.h"
#include "Tympan/models/common/3d.h"
#include "OGLLine.h"
 
OGLGrid::OGLGrid() {}
 
OGLGrid::~OGLGrid() {}
 
void OGLGrid::drawGrid(const float gridDimX, const float gridDimY, const float gridStep, const OColor& oColor,
                       bool bShowGridXY, bool showGridXZ, bool showGridZY) const
{
    int k = 0;
    int resX = int(gridDimX / gridStep);
    int resY = int(gridDimY / gridStep);
 
    if (bShowGridXY)
    {
        for (k = -int(resX / 2); k <= int(resX / 2); k++)
        {
            OGLLine line1;
            line1.drawLine(OPoint3D(gridStep * k, -gridDimY / 2, 0.0),
                           OPoint3D(gridStep * k, gridDimY / 2, 0.0), oColor, 1.0);
        }
 
        for (k = -int(resY / 2); k <= int(resY / 2); k++)
        {
            OGLLine line2;
            line2.drawLine(OPoint3D(-gridDimX / 2, gridStep * k, 0.0),
                           OPoint3D(gridDimX / 2, gridStep * k, 0.0), oColor, 1.0);
        }
    }
 
    if (showGridXZ)
    {
        for (k = -int(resX / 2); k <= int(resX / 2); k++)
        {
            OGLLine line1;
            line1.drawLine(OPoint3D(gridStep * k, 0.0, -gridDimY / 2),
                           OPoint3D(gridStep * k, 0.0, gridDimY / 2), oColor, 1.0);
        }
 
        for (k = -int(resY / 2); k <= int(resY / 2); k++)
        {
            OGLLine line2;
            line2.drawLine(OPoint3D(-gridDimX / 2, 0.0, gridStep * k),
                           OPoint3D(gridDimX / 2, 0.0, gridStep * k), oColor, 1.0);
        }
    }
 
    if (showGridZY)
    {
        for (k = -int(resX / 2); k <= int(resX / 2); k++)
        {
            OGLLine line1;
            line1.drawLine(OPoint3D(0.0, gridStep * k, -gridDimY / 2),
                           OPoint3D(0.0, gridStep * k, gridDimY / 2), oColor, 1.0);
        }
 
        for (k = -int(resY / 2); k <= int(resY / 2); k++)
        {
            OGLLine line2;
            line2.drawLine(OPoint3D(0.0, -gridDimX / 2, gridStep * k),
                           OPoint3D(0.0, gridDimX / 2, gridStep * k), oColor, 1.0);
        }
    }
}