Software Tools Text Box: P3D Codes: The Digital Data Viewer (DDV): DDV performs segmentation and feature extraction from volumes (or 2-D stacked images) of digital data (e.g. MRI/NMR, CT, etc) to produce an output surface (usually in AVS or STL ASCII file format). DDV has a nice GUI (Graphics User Interface). The Digital Daa Analysis Toolkit (DDATK): Basically, this is DDV2, but it contains a data analysis window with lots of information processing capability, along with what we call our classification, characterization and cluster tools for projecting high-dimensional data into 2 and 3 dimensions. NorthWest Grid Generator (NWGrid): A general unstructured mesh generation system that can input geometry definitions from DDV, OSO or CAD system and build boundary-fitted/volume-filling tetrahedral or hybrid meshes. These meshes can be used for calculating surface area, volumes and as input to a time-dependent, computational (bio)physics solver such as NWPhys. NWGrid is driven by either interactive or batch files. NorthWest Physics Code (NWPhys): A general unstructured mesh, computational physics solver package that performs coupled hydrodynamics, structural mechanics and transport simulation. NWPhys is driven by either interactively or through batch command files. OSO: Is a geometry editor which combines geometry from many different sources, such as: 1) input surfaces from DDV, 2) surfaces from CAD software in STL (Stereo Lithograph) format and 3) CSG (Constructive Solid Geometry) analytic geometry. OSO’s geometry model is based on a mathematically complete algebra composed of Boolean operators (And, Or and Not) and Logical operators (less than, greater than, equals, etc). OSO has a nice GUI. For example, a volume of space may be defined as being “greater than surface_a and less_than_or_equal_to surface_b”. These definitions can be used to compose geometry of arbitrary complexity. I don’t know of a geometry that can’t be defined using these definitions. The General Mesh Viewer (GMV): GMV is used to interactively view mesh and mesh data. GMV has a nice GUI interface Authors: Harold Trease, John Fowler, Frank Ortega, Lynn Trease, et al. P3DText Box:

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