1.10. Data Access and Computing

The Data Access API (SoLDMDataAccess SoLDMDataAccess SoLDMDataAccess ) provides methods to conveniently extract data from a volume managed by VolumeViz LDM. Data access can be used to extract data for computation, for segmentation or for display using other primitives. The data is accessible whether the SoVolumeData SoVolumeData SoVolumeData node is part of a scene graph or not. The API allows an application to get the data associated with a specific tile at a specific resolution level. But more importantly it allows an application to ignore tiling and request the data values in a trace, a slice or an arbitrary subvolume. VolumeViz LDM takes care of copying data from all the required tiles to form the requested block of data.

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