GEOMETRY commands


PROGRAM NAME

gstreamlines - Compute Streamlines through 3-Component Vector/Flow Data.

DESCRIPTION

This visualization tool is useful for exploring "flow fields." Seed points, contained in the "rake" input, are starting locations in the input flow field. From each seed point, a streamline curve is computed. A streamline is defined as a curve which is tangential to a flow field along its entire length. A numerical integration of flow values surrounding each computed sample point in space contributes to the next point along the streamline.

REQUIRED ARGUMENTS

-i
type: infile
desc: Data object containing flow vectors. Must have 3 computational dimensions and 3 coordinate dimensions.
-rake
type: infile
desc: List of x,y,z points used for seeding the streamlines computation.
-o
type: outfile
desc: Geometry representing streamlines.

OPTIONAL ARGUMENTS

-name
type: string
desc: Internal name of geometry object.
default: streamlines
-step
type: float
desc: Controls granularity of integration. Make smaller for better approximation.
default: 0.05
bounds: value > 0.0
-nsteps
type: integer
desc: Number of integration steps to compute.
default: 100
bounds: 1 < [-nsteps] < 512

EXAMPLES

SEE ALSO

RESTRICTIONS

REFERENCES

COPYRIGHT

Copyright (C) 1996,1997 , The Regents of the University of California. All rights reserved.