Module category: IO

• ReadPatran
  • Parameters
  • Output Ports
  • Examples

ReadPatran

The module reads data sets compatible to PATRAN 2.5 file format. It processes information of the neutral file, displacement or force results files, nodal and element results files.

ReadPatran is available for COVISE snapvir-2001-01 and higher. It's tested on SGI systems.

The following Neutral File packages types are supported at the moment:

• Node data
• Element data
• Named components

Parameters

Name	Type	Description
grid_path	Browser	The basic grid file( neutral file) location.
nodal_displ_force_path	Browser	The nodal displacements or force results file location. This parameter is optional. If you use more than one timestep check if your files match the following naming convention: either the file name includes only one number refering to the timestep or the file name contains such a number at its end.
nodal_result_path	Browser	The nodal results file location. This parameter is optional. Note the naming convention above.
elem_result_path	Browser	The element results file location. This parameter is optional. Note the naming convention above.
Option	Choice	The type of the results which will be put in the data2 output port. The options are: Nodal_Results and Element_Results. This choice should be associated with the selection of the corresponding input file.
timesteps	Scalar	The desired number of timesteps. This parameter is optional.
skipped_files	Scalar	The desired number of skipped timesteps files. This parameter is optional. It's useful when you have a big number of timesteps files and you want to skip some of them.
nb_columns	Scalar	The number of the column read out from the nodal or element results file.

Output Ports

Name	Type	Description
outputmesh	UnstructuredGrid	Unstructured grid or a set of unstructured grids
outputdata1	Vec3	The displacements or force results: unstructured vector data or a set of unstructured vector data
outputdata2	Float	Unstructured scalar data a set of unstructured scalar data
outputtype	IntArr	Array of ElementIDs, PropertyIDs and ComponentIDs

Examples

Figure: covise/net/examples/ReadPatran.net

We have two data files: the neutral file contains all information about the grid, the result file contains the velocity vector in the first three columns and the kinetic energy in the fourth column. The name of the neutral file is placed in the grid_path parameter. To read out vector data we use the parameter nodal_displ_force_path. We find the vector output at the second output port. These vectors are displayed with the module VectorField. The energy data is read by setting the parameter nodal_result_path with the same filename.
Note: You should use the parameter elem_result_path if you have data per element. Some modules accept vertex-based data only; use the module CellToVert to convert cell-based data to vertex-based data.
To get the fourth column of the results data file we set the parameter nb_columns to 4. We get this scalar data from the third port and visualize it by using colors on a cutting plane. The result is shown in the image below.

Figure: Result in the Renderer