InteractivePointCloud.cpp

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/*
 * InteractivePointCloud.cpp
 *
 *  Created on: 02.04.2012
 *      Author: Thomas Wiemann
 */

#include "lvr2/display/InteractivePointCloud.hpp"

namespace lvr2
{

InteractivePointCloud::InteractivePointCloud()
{
        m_boundingBox = new BoundingBox<Vec>(
                        Vec(-8, -8, -8),
                        Vec(8, 8, 8)
                        );

        updateBuffer(PointBufferPtr());
}

InteractivePointCloud::InteractivePointCloud(PointBufferPtr buffer)
{
        m_boundingBox = new BoundingBox<Vec>(
                        Vec(-8, -8, -8),
                        Vec(8, 8, 8)
                        );

        updateBuffer(buffer);
}


InteractivePointCloud::~InteractivePointCloud()
{

}

void InteractivePointCloud::render()
{
        if(m_buffer)
        {
                glColor3f(1.0, 0.0, 0.0);
                glDrawArrays(GL_POINTS, 0, m_buffer->numPoints());
        }
}

void InteractivePointCloud::updateBuffer(PointBufferPtr buffer)
{
        if(buffer)
        {
                if(!m_boundingBox)
                {
                        m_boundingBox = new BoundingBox<Vec>;
                        m_boundingBox->expand(Vec(8000, 8000, 8000));
                }

                size_t num_vertices = buffer->numPoints();
                float* vertices = buffer->getPointArray().get();

//              m_boundingBox = new BoundingBox<Vertex<float> >;
//              for (int i = 0; i < int(num_vertices); i++)
//              {
//                      int index = 3 * i;
//                      m_boundingBox->expand(vertices[index], vertices[index + 1], vertices[index + 2]);
//              }

                glVertexPointer(3, GL_FLOAT, 0, vertices);
                m_buffer = buffer;
        }
}

} /* namespace lvr2 */