Added support for reading .osg, .osgb, .osgx, .osgt and .ive models that contain volumes from within the volume tag.
This commit is contained in:
Robert Osfield
parent
537272b98f
commit
9aa7010ded
@ -1753,130 +1753,198 @@ void SlideShowConstructor::addVolume(const std::string& filename, const Position
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// osg::Object::DataVariance defaultMatrixDataVariance = osg::Object::DYNAMIC; // STATIC
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std::string foundFile = filename;
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osgDB::FileType fileType = osgDB::fileType(foundFile);
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if (fileType == osgDB::FILE_NOT_FOUND)
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{
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foundFile = findFileAndRecordPath(foundFile);
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fileType = osgDB::fileType(foundFile);
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}
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osg::ref_ptr<osg::Image> image;
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if (fileType == osgDB::DIRECTORY)
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osg::ref_ptr<osgVolume::Volume> volume;
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osg::ref_ptr<osgVolume::VolumeTile> tile;
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osg::ref_ptr<osgVolume::ImageLayer> layer;
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// check for wild cards
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if (filename.find('*')!=std::string::npos)
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{
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image = osgDB::readImageFile(foundFile+".dicom", _options.get());
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}
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else if (fileType == osgDB::REGULAR_FILE)
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{
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image = osgDB::readImageFile( foundFile, _options.get() );
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osgDB::DirectoryContents filenames = osgDB::expandWildcardsInFilename(filename);
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if (filenames.empty()) return;
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// make sure images are in alphabetical order.
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std::sort(filenames.begin(), filenames.end());
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typedef std::vector< osg::ref_ptr<osg::Image> > Images;
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Images images;
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for(osgDB::DirectoryContents::iterator itr = filenames.begin();
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itr != filenames.end();
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++itr)
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{
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osg::ref_ptr<osg::Image> loadedImage = osgDB::readImageFile(*itr);
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if (loadedImage.valid())
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{
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OSG_NOTICE<<"Image loaded "<<*itr<<std::endl;
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images.push_back(loadedImage.get());
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}
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}
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OSG_NOTICE<<"Need to build volume from images"<<std::endl;
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}
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else
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{
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// not found image, so fallback to plguins/callbacks to find the model.
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image = osgDB::readImageFile( filename, _options.get() );
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if (image) recordOptionsFilePath(_options.get() );
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osgDB::FileType fileType = osgDB::fileType(foundFile);
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if (fileType == osgDB::FILE_NOT_FOUND)
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{
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foundFile = findFileAndRecordPath(foundFile);
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fileType = osgDB::fileType(foundFile);
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}
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if (fileType == osgDB::DIRECTORY)
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{
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image = osgDB::readImageFile(foundFile+".dicom", _options.get());
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}
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else if (fileType == osgDB::REGULAR_FILE)
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{
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std::string ext = osgDB::getFileExtension(foundFile);
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if (ext=="osg" || ext=="ive" || ext=="osgx" || ext=="osgb" || ext=="osgt")
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{
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osg::ref_ptr<osg::Object> obj = osgDB::readObjectFile(foundFile);
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image = dynamic_cast<osg::Image*>(obj.get());
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volume = dynamic_cast<osgVolume::Volume*>(obj.get());
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}
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else
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{
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image = osgDB::readImageFile( foundFile, _options.get() );
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}
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}
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else
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{
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// not found image, so fallback to plguins/callbacks to find the model.
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image = osgDB::readImageFile( filename, _options.get() );
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if (image) recordOptionsFilePath(_options.get() );
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}
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}
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if (!image) return;
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if (!image && !volume) return;
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osg::ref_ptr<osgVolume::ImageDetails> details = dynamic_cast<osgVolume::ImageDetails*>(image->getUserData());
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osg::ref_ptr<osg::RefMatrix> matrix = details ? details->getMatrix() : dynamic_cast<osg::RefMatrix*>(image->getUserData());
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osg::ref_ptr<osgVolume::Volume> volume = new osgVolume::Volume;
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osg::ref_ptr<osgVolume::VolumeTile> tile = new osgVolume::VolumeTile;
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volume->addChild(tile.get());
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osg::ref_ptr<osgVolume::ImageLayer> layer = new osgVolume::ImageLayer(image.get());
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if (details)
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if (volume.valid())
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{
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layer->setTexelOffset(details->getTexelOffset());
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layer->setTexelScale(details->getTexelScale());
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if (!tile)
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{
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if (volume->getNumChildren()>0)
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{
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tile = dynamic_cast<osgVolume::VolumeTile*>(volume->getChild(0));
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}
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}
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}
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layer->rescaleToZeroToOneRange();
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if (matrix.valid())
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else
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{
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layer->setLocator(new osgVolume::Locator(*matrix));
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osg::Matrix tm = osg::Matrix::scale(volumeData.region[3]-volumeData.region[0], volumeData.region[4]-volumeData.region[1], volumeData.region[5]-volumeData.region[2]) *
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osg::Matrix::translate(volumeData.region[0],volumeData.region[1],volumeData.region[2]);
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tile->setLocator(new osgVolume::Locator(tm * (*matrix)));
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volume = new osgVolume::Volume;
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}
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tile->setLayer(layer.get());
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osgVolume::SwitchProperty* sp = new osgVolume::SwitchProperty;
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sp->setActiveProperty(0);
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osgVolume::AlphaFuncProperty* ap = new osgVolume::AlphaFuncProperty(volumeData.cutoffValue);
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osgVolume::TransparencyProperty* tp = new osgVolume::TransparencyProperty(volumeData.alphaValue);
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osgVolume::SampleDensityProperty* sd = new osgVolume::SampleDensityProperty(volumeData.sampleDensityValue);
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osgVolume::SampleDensityWhenMovingProperty* sdm = (volumeData.sampleDensityWhenMovingValue > 0.0f) ? (new osgVolume::SampleDensityWhenMovingProperty(volumeData.sampleDensityWhenMovingValue)) : 0;
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osgVolume::TransferFunctionProperty* tfp = volumeData.transferFunction.valid() ? new osgVolume::TransferFunctionProperty(volumeData.transferFunction.get()) : 0;
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if (tile.valid())
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{
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// Standard
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(ap);
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cp->addProperty(sd);
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cp->addProperty(tp);
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if (sdm) cp->addProperty(sdm);
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if (tfp) cp->addProperty(tfp);
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sp->addProperty(cp);
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layer = dynamic_cast<osgVolume::ImageLayer*>(tile->getLayer());
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image = layer.valid() ? layer->getImage() : 0;
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}
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else
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{
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// Light
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(ap);
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cp->addProperty(sd);
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cp->addProperty(tp);
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cp->addProperty(new osgVolume::LightingProperty);
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if (sdm) cp->addProperty(sdm);
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if (tfp) cp->addProperty(tfp);
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if (!image) return;
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sp->addProperty(cp);
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tile = new osgVolume::VolumeTile;
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volume->addChild(tile.get());
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}
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if (!layer)
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{
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// Isosurface
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(sd);
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cp->addProperty(tp);
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cp->addProperty(new osgVolume::IsoSurfaceProperty(volumeData.cutoffValue));
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if (sdm) cp->addProperty(sdm);
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if (tfp) cp->addProperty(tfp);
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if (!image) return;
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sp->addProperty(cp);
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osg::ref_ptr<osgVolume::ImageDetails> details = dynamic_cast<osgVolume::ImageDetails*>(image->getUserData());
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osg::ref_ptr<osg::RefMatrix> matrix = details ? details->getMatrix() : dynamic_cast<osg::RefMatrix*>(image->getUserData());
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osg::ref_ptr<osgVolume::ImageLayer> layer = new osgVolume::ImageLayer(image.get());
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if (details)
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{
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layer->setTexelOffset(details->getTexelOffset());
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layer->setTexelScale(details->getTexelScale());
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}
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layer->rescaleToZeroToOneRange();
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if (matrix.valid())
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{
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layer->setLocator(new osgVolume::Locator(*matrix));
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osg::Matrix tm = osg::Matrix::scale(volumeData.region[3]-volumeData.region[0], volumeData.region[4]-volumeData.region[1], volumeData.region[5]-volumeData.region[2]) *
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osg::Matrix::translate(volumeData.region[0],volumeData.region[1],volumeData.region[2]);
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tile->setLocator(new osgVolume::Locator(tm * (*matrix)));
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}
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tile->setLayer(layer.get());
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osgVolume::SwitchProperty* sp = new osgVolume::SwitchProperty;
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sp->setActiveProperty(0);
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osgVolume::AlphaFuncProperty* ap = new osgVolume::AlphaFuncProperty(volumeData.cutoffValue);
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osgVolume::TransparencyProperty* tp = new osgVolume::TransparencyProperty(volumeData.alphaValue);
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osgVolume::SampleDensityProperty* sd = new osgVolume::SampleDensityProperty(volumeData.sampleDensityValue);
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osgVolume::SampleDensityWhenMovingProperty* sdm = (volumeData.sampleDensityWhenMovingValue > 0.0f) ? (new osgVolume::SampleDensityWhenMovingProperty(volumeData.sampleDensityWhenMovingValue)) : 0;
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osgVolume::TransferFunctionProperty* tfp = volumeData.transferFunction.valid() ? new osgVolume::TransferFunctionProperty(volumeData.transferFunction.get()) : 0;
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{
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// Standard
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(ap);
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cp->addProperty(sd);
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cp->addProperty(tp);
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if (sdm) cp->addProperty(sdm);
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if (tfp) cp->addProperty(tfp);
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sp->addProperty(cp);
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}
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{
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// Light
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(ap);
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cp->addProperty(sd);
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cp->addProperty(tp);
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cp->addProperty(new osgVolume::LightingProperty);
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if (sdm) cp->addProperty(sdm);
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if (tfp) cp->addProperty(tfp);
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sp->addProperty(cp);
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}
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{
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// Isosurface
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(sd);
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cp->addProperty(tp);
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cp->addProperty(new osgVolume::IsoSurfaceProperty(volumeData.cutoffValue));
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if (sdm) cp->addProperty(sdm);
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if (tfp) cp->addProperty(tfp);
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sp->addProperty(cp);
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}
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{
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// MaximumIntensityProjection
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(ap);
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cp->addProperty(sd);
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cp->addProperty(tp);
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cp->addProperty(new osgVolume::MaximumIntensityProjectionProperty);
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if (sdm) cp->addProperty(sdm);
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if (tfp) cp->addProperty(tfp);
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sp->addProperty(cp);
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}
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switch(volumeData.shadingModel)
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{
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case(VolumeData::Standard): sp->setActiveProperty(0); break;
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case(VolumeData::Light): sp->setActiveProperty(1); break;
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case(VolumeData::Isosurface): sp->setActiveProperty(2); break;
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case(VolumeData::MaximumIntensityProjection): sp->setActiveProperty(3); break;
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}
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layer->addProperty(sp);
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tile->setVolumeTechnique(new osgVolume::RayTracedTechnique);
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tile->setEventCallback(new osgVolume::PropertyAdjustmentCallback());
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}
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{
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// MaximumIntensityProjection
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osgVolume::CompositeProperty* cp = new osgVolume::CompositeProperty;
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cp->addProperty(ap);
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cp->addProperty(sd);
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cp->addProperty(tp);
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cp->addProperty(new osgVolume::MaximumIntensityProjectionProperty);
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if (sdm) cp->addProperty(sdm);
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if (tfp) cp->addProperty(tfp);
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sp->addProperty(cp);
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}
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switch(volumeData.shadingModel)
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{
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case(VolumeData::Standard): sp->setActiveProperty(0); break;
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case(VolumeData::Light): sp->setActiveProperty(1); break;
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case(VolumeData::Isosurface): sp->setActiveProperty(2); break;
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case(VolumeData::MaximumIntensityProjection): sp->setActiveProperty(3); break;
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}
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layer->addProperty(sp);
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tile->setVolumeTechnique(new osgVolume::RayTracedTechnique);
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tile->setEventCallback(new osgVolume::PropertyAdjustmentCallback());
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osg::ref_ptr<osg::Node> model = volume.get();
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if (volumeData.useTabbedDragger || volumeData.useTrackballDragger)
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