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* The new class vtkExplicitStructuredGrid * Two new filter vtkImageDataToExplicitStructuredGrid and vtkUnstructuredGridExplicitStructuredGrid for converting to the new type * A new filter vtkExplicitStructuredGridToUnstructuredGrid for converting from the new type * A new filter vtkExplicitStructuredGridCrop , as a first filter specific to the new type * A few tests for these filters ``` /* vtkExplicitStructuredGrid is a data object that is a concrete implementation * of vtkDataSet. vtkExplicitStructuredGrid represents a geometric structure * that is a topologically regular array of hexahedron. The topology is that of * a cube that has been subdivided into a regular array of smaller cubes. * Each cell can be addressed with i-j-k indices, however neighbor hexahedrons * does not necessarily share a face and hexahedron can be blanked (turned-off). * * Like unstructured grid, vtkExplicitStructuredGrid has explicit point coordinate...
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