vtkBiQuadraticQuadraticHexahedron

Section: Visualization Toolkit Filtering Classes

Usage

vtkBiQuadraticQuadraticHexahedron is a concrete implementation of vtkNonLinearCell to represent a three-dimensional, 24-node isoparametric biquadratic hexahedron. The interpolation is the standard finite element, biquadratic-quadratic isoparametric shape function. The cell includes mid-edge and center-face nodes. The ordering of the 24 points defining the cell is point ids (0-7,8-19, 20-23) where point ids 0-7 are the eight corner vertices of the cube; followed by twelve midedge nodes (8-19), nodes 20-23 are the center-face nodes. Note that these midedge nodes correspond lie on the edges defined by (0,1), (1,2), (2,3), (3,0), (4,5), (5,6), (6,7), (7,4), (0,4), (1,5), (2,6), (3,7). The center face nodes lieing in quad 22-(0,1,5,4), 21-(1,2,6,5), 23-(2,3,7,6) and 22-(3,0,4,7)

\verbatim

top 7--14--6 | | 15 13 | | 4--12--5

middle 19--23--18 | | 20 21 | | 16--22--17

bottom 3--10--2 | | 11 9 | | 0-- 8--1 \endverbatim

To create an instance of class vtkBiQuadraticQuadraticHexahedron, simply invoke its constructor as follows

  obj = vtkBiQuadraticQuadraticHexahedron

Methods

The class vtkBiQuadraticQuadraticHexahedron has several methods that can be used. They are listed below. Note that the documentation is translated automatically from the VTK sources, and may not be completely intelligible. When in doubt, consult the VTK website. In the methods listed below, obj is an instance of the vtkBiQuadraticQuadraticHexahedron class.