Tarantula is a volume-mesh generator for voxel based data. It uses directly the MRT/CT data. The design is especially made for “huge” applications.
Benefits:
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•Tarantula will need no geometry reconstruction in between, so this (time consuming) part of clicking surface triangles can be skipped.
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•Tarantula creates by default a multi-material mesh which is conform at the interface, and locally refined.
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•Every wanted mesh size for every feature is possible. This allows pre-studies as well as detail-simulation using the same geometry.
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•The mesh size is only limited by the hardware used.
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•Tarantula can be integrated into an existing work flow.
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•Tarantula can run without graphical user interface and is controlled via a configuration file. This allows, if an initial configuration file for a specific application has been created, that variants of the geometry can be done just by rerunning with the same configuration and the new geometry.
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•The in-build offscreen-renderer used by the report generator gives a first insight in the generated mesh. Without any interactivity Spider returns a document which summarizes the meshing job and give pictures of the created mesh.
How Tarantula works:
Starting from a voxel-data-set, the geometry is described as iso-surface. This geometry is not smooth, because coming from discrete CAD-data. In the first step, a multilevel “noshrink-laplace” smoother is applied to smooth the high frequencies out of the geometry.
Then tarantula creates the mesh similar to the spider algorithm and ends up with a local refined multi-material mesh.
Example: Oxford rabbit heart in finest resolution with 200 000 000 cells:
Tarantula