Module category: Filter

• CropUsg
  • Parameters
  • Input Ports
  • Output Ports
  • Example 1
  • Example 2

CropUsg

CropUsg crops the parts of an unstructured grid which are outside of a bounding box.

CropUsg is available for all COVISE versions on all supported platforms.

Parameters

Name	Type	Description
xMin, yMin, zMin	Scalar	xMin, yMin, zMin define one vertex of the bounding box
xMax, yMax, zMax	Scalar	xMax, yMax, zMax define the diagonal opposite vertex of the bounding box
invert_crop	Boolean	Determine if crop the inside-domain or the outside-domain of the box.

Input Ports

Name	Type	Description
requiredgridIn	UnstructuredGrid Polygons Points	The unstructured grid, polygon mesh or points which should be cropped.
optionalvdata	Vec3	The vector data on the unstructured grid which should be cropped. The data objects have to be vertex-based. If you have cell-based data (for example from ReadFluent) use the module CellToVert to convert the data objects.
optionalsdata1... sdata5	Float	To the ports sdata1 to sdata5 you can assign up to 5 scalar data objects on the unstructured grid which should be cropped. The data objects have to be vertex-based.
optionalparam_in	Points	Set the parameters by two points. You can e.g. read in a file with RW_ASCII in the following format: POINTS 2 { VERTEX # xmin ymin zmin 0.000000 -2000.000000 -2000.000000 # xmax ymax zmax 2000.000000 2000.000000 2000.000000 }

Output Ports

Name	Type	Description
outputgridOut	UnstructuredGrid Polygons Points	The cropped unstructured grid, polygonal mesh or set of points.
dependvodata	Vec3	The cropped vector data on the unstructured grid.
dependsodata1...sodata5	Float	The cropped scalar data on the unstructured grid.
outputparam_out	Points	Current parameters as two points which can be saved with RW_ASCII and edited manually. See parameter param_in.

Example 1

Figure: covise/net/examples/CropUsg.net

The first RW_Covise modules reads in the computational grid of a channel with two inlets and the second reads in the pressure field. The bounding box parameters are [-2000.0 -0.5 -2000.0] for the first vertex and [2000.0 2000.0 2000.0] for the diagonal opposite vertex. The extension of the uncropped channel is from y=0.5 (inlet side) to y=-2 (outlet side). With the CropUsg module it is shortened thus it ends cropped at y=-0.5.

Example 2

The second example map shows you how to set the parameters by two points.

Figure: covise/net/examples/CropUsg_RWAscii.net