FGFS-4.1/OpenSceneGraph
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Added support for using negative scale_x, scale_y and scale_z values in the <volume> tag to allow presentations to flip the imagery

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This commit is contained in:
Robert Osfield 2011-10-21 11:00:29 +00:00
parent d3cebab9a3
commit d7cba048f5
1 changed files with 27 additions and 1 deletions
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28
src/osgPresentation/SlideShowConstructor.cpp
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@ -1750,10 +1750,12 @@ bool DraggerVolumeTileCallback::receive(const osgManipulator::MotionCommand& com
}
}
void SlideShowConstructor::addVolume(const std::string& filename, const PositionData& positionData, const VolumeData& volumeData)
void SlideShowConstructor::addVolume(const std::string& filename, const PositionData& in_positionData, const VolumeData& volumeData)
{
// osg::Object::DataVariance defaultMatrixDataVariance = osg::Object::DYNAMIC; // STATIC
PositionData positionData(in_positionData);
std::string foundFile = filename;
osg::ref_ptr<osg::Image> image;
osg::ref_ptr<osgVolume::Volume> volume;
@ -1821,6 +1823,30 @@ void SlideShowConstructor::addVolume(const std::string& filename, const Position
if (!image && !volume) return;
if (positionData.scale.x()<0.0)
{
image->flipHorizontal();
positionData.scale.x() = fabs(positionData.scale.x());
OSG_INFO<<"addVolume(..) image->flipHorizontal();"<<std::endl;
}
if (positionData.scale.y()<0.0)
{
image->flipVertical();
positionData.scale.y() = fabs(positionData.scale.y());
OSG_INFO<<"addVolume(..) image->flipVertical();"<<std::endl;
}
if (positionData.scale.z()<0.0)
{
image->flipDepth();
positionData.scale.z() = fabs(positionData.scale.z());
OSG_INFO<<"addVolume(..) image->flipDepth();"<<std::endl;
}
if (volume.valid())
{
if (!tile)