C++ (Cpp) BoundingBox::extent示例

示例#1

文件： RivGridBoxGenerator.cpp 项目： atgeirr/ResInsight

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
void RivGridBoxGenerator::setGridBoxDomainCoordBoundingBox(const cvf::BoundingBox& bb)
{
    cvf::BoundingBox expandedBB;
    {
        double expandFactor = 0.05;

        cvf::Vec3d expandedMin;
        expandedMin.x() = bb.min().x() - bb.extent().x() * expandFactor;
        expandedMin.y() = bb.min().y() - bb.extent().y() * expandFactor;
        expandedMin.z() = bb.min().z() - bb.extent().z() * expandFactor;

        cvf::Vec3d expandedMax;
        expandedMax.x() = bb.max().x() + bb.extent().x() * expandFactor;
        expandedMax.y() = bb.max().y() + bb.extent().y() * expandFactor;
        expandedMax.z() = bb.max().z() + bb.extent().z() * expandFactor;

        expandedBB.add(expandedMin);
        expandedBB.add(expandedMax);
    }

    m_domainCoordsBoundingBox = expandedBB;

    m_domainCoordsXValues.clear();
    m_domainCoordsYValues.clear();
    m_domainCoordsZValues.clear();

    cvf::Vec3d min = m_domainCoordsBoundingBox.min();
    cvf::Vec3d max = m_domainCoordsBoundingBox.max();

    cvf::ScalarMapperDiscreteLinear m_linDiscreteScalarMapper;
    size_t levelCount = 6;

    m_linDiscreteScalarMapper.setRange(min.x(), max.x());
    m_linDiscreteScalarMapper.setLevelCount(levelCount, true);
    m_linDiscreteScalarMapper.majorTickValues(&m_domainCoordsXValues);

    m_linDiscreteScalarMapper.setRange(min.y(), max.y());
    m_linDiscreteScalarMapper.setLevelCount(levelCount, true);
    m_linDiscreteScalarMapper.majorTickValues(&m_domainCoordsYValues);

    m_linDiscreteScalarMapper.setRange(min.z(), max.z());
    m_linDiscreteScalarMapper.setLevelCount(levelCount, true);
    m_linDiscreteScalarMapper.majorTickValues(&m_domainCoordsZValues);
}

示例#2

文件： RivGridBoxGenerator.cpp 项目： magnesj/ResInsight

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
void RivGridBoxGenerator::setGridBoxDomainCoordBoundingBox(const cvf::BoundingBox& bb)
{
    double expandFactor = 0.05;
    
    // Use ScalarMapperDiscreteLinear to find human readable tick mark positions for grid box sub division coordinate values
    // Expand the range for ScalarMapperDiscreteLinear until the geometry bounding box has a generated tick mark coords
    // both below minimum and above maximum bounding box coords

    cvf::Vec3d min = bb.min();
    cvf::Vec3d max = bb.max();

    size_t levelCount = 6;

    {
        bool majorTickValuesCoversDomainValues = false;
        while (!majorTickValuesCoversDomainValues)
        {
            m_domainCoordsXValues.clear();

            cvf::ScalarMapperDiscreteLinear linDiscreteScalarMapper;
            linDiscreteScalarMapper.setRange(min.x(), max.x());
            linDiscreteScalarMapper.setLevelCount(levelCount, true);
            linDiscreteScalarMapper.majorTickValues(&m_domainCoordsXValues);

            majorTickValuesCoversDomainValues = true;

            if (m_domainCoordsXValues[1] > bb.min().x())
            {
                min.x() = min.x() - bb.extent().x() * expandFactor;
                max.x() = max.x() + bb.extent().x() * expandFactor;
                majorTickValuesCoversDomainValues = false;
            }

            if (m_domainCoordsXValues[m_domainCoordsXValues.size() - 1] < bb.max().x())
            {
                min.x() = min.x() - bb.extent().x() * expandFactor;
                max.x() = max.x() + bb.extent().x() * expandFactor;
                majorTickValuesCoversDomainValues = false;
            }
        }
    }

    {
        bool majorTickValuesCoversDomainValues = false;
        while (!majorTickValuesCoversDomainValues)
        {
            m_domainCoordsYValues.clear();

            cvf::ScalarMapperDiscreteLinear linDiscreteScalarMapper;
            linDiscreteScalarMapper.setRange(min.y(), max.y());
            linDiscreteScalarMapper.setLevelCount(levelCount, true);
            linDiscreteScalarMapper.majorTickValues(&m_domainCoordsYValues);

            majorTickValuesCoversDomainValues = true;

            if (m_domainCoordsYValues[1] > bb.min().y())
            {
                min.y() = min.y() - bb.extent().y() * expandFactor;
                max.y() = max.y() + bb.extent().y() * expandFactor;
                majorTickValuesCoversDomainValues = false;
            }

            if (m_domainCoordsYValues[m_domainCoordsYValues.size() - 1] < bb.max().y())
            {
                min.y() = min.y() - bb.extent().y() * expandFactor;
                max.y() = max.y() + bb.extent().y() * expandFactor;
                majorTickValuesCoversDomainValues = false;
            }
        }
    }

    {
        bool majorTickValuesCoversDomainValues = false;
        while (!majorTickValuesCoversDomainValues)
        {
            m_domainCoordsZValues.clear();

            cvf::ScalarMapperDiscreteLinear linDiscreteScalarMapper;
            linDiscreteScalarMapper.setRange(min.z(), max.z());
            linDiscreteScalarMapper.setLevelCount(levelCount, true);
            linDiscreteScalarMapper.majorTickValues(&m_domainCoordsZValues);

            majorTickValuesCoversDomainValues = true;

            if (m_domainCoordsZValues[1] > bb.min().z())
            {
                min.z() = min.z() - bb.extent().z() * expandFactor;
                max.z() = max.z() + bb.extent().z() * expandFactor;
                majorTickValuesCoversDomainValues = false;
            }

            if (m_domainCoordsZValues[m_domainCoordsZValues.size() - 1] < bb.max().z())
            {
                min.z() = min.z() - bb.extent().z() * expandFactor;
                max.z() = max.z() + bb.extent().z() * expandFactor;
                majorTickValuesCoversDomainValues = false;
            }
        }
    }
    
    cvf::BoundingBox expandedBB;
    expandedBB.add(min);
    expandedBB.add(max);

    m_domainCoordsBoundingBox = expandedBB;
}