PDL::Graphics::TriD::Rout - Helper routines for Three-dimensional graphics
This module is for miscellaneous PP-defined utility routines for the PDL::Graphics::TriD module. Currently, there are
Copyright (C) 1997 Tuomas J. Lukka. All rights reserved. There is no warranty. You are allowed to redistribute this software / documentation under certain conditions. For details, see the file COPYING in the PDL distribution. If this file is separated from the PDL distribution, the copyright notice should be included in the file.
Signature: (x(); y(); z(); float [o]coords(tri=3);)
Combine three coordinates into a single piddle.
Combine x, y and z to a single piddle the first dimension of which is 3. This routine does dataflow automatically.
Signature: (coords(nc,np); [o]vecs(nc,np); int [t]links(np);; double boxsize; int dmult; double a; double b; double c; double d; )
Repulsive potential for molecule-like constructs.
repulse
uses a hash table of cubes to quickly calculate
a repulsive force that vanishes at infinity for many
objects. For use by the module PDL::Graphics::TriD::MathGraph.
For definition of the potential, see the actual function.
Signature: (coords(nc,np); int from(nl); int to(nl); strength(nl); [o]vecs(nc,np);; double m; double ms; )
Attractive potential for molecule-like constructs.
attract
is used to calculate
an attractive force for many
objects, of which some attract each other (in a way
like molecular bonds).
For use by the module PDL::Graphics::TriD::MathGraph.
For definition of the potential, see the actual function.
Signature: (vertices(n=3); char* space; char* fd)
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