Get object matrix: Difference between revisions
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Cowsandmilk (talk | contribs) (Created page with '=Overview= Pymol stores a transformation matrix for each object relative to it's initial position when loaded in. '''get_object_matrix''' will return a list of floats with that …') |
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Pymol stores a transformation matrix for each object relative to it's initial position when loaded in. '''get_object_matrix''' will return a list of floats with that matrix for a named object. | Pymol stores a transformation matrix for each object relative to it's initial position when loaded in. '''get_object_matrix''' will return a list of floats with that matrix for a named object. | ||
The matrix is 4X4, with the upper left 3x3 forming a rotation matrix, the fourth column and row representing pre- and post-translation vectors respectively, and the 16th element always being 1.0. | The matrix is 4X4, with the upper left 3x3 forming a rotation matrix, the fourth column and row representing pre-rotation and post-rotation translation vectors respectively, and the 16th element always being 1.0. | ||
According the pymol source code, this is an "unsupported command". | According the pymol source code, this is an "unsupported command". | ||
Revision as of 14:22, 22 November 2009
Overview
Pymol stores a transformation matrix for each object relative to it's initial position when loaded in. get_object_matrix will return a list of floats with that matrix for a named object.
The matrix is 4X4, with the upper left 3x3 forming a rotation matrix, the fourth column and row representing pre-rotation and post-rotation translation vectors respectively, and the 16th element always being 1.0.
According the pymol source code, this is an "unsupported command".
Syntax
cmd.get_object_matrix(object, state=1)
Example
cmd.load("prot1.pdb", "prot1")
cmd.load("prot2.pdb", "prot2")
cmd.super("prot1", "prot2") #align prot1 to prot 2
transformation = cmd.get_object_matrix("prot1") #translation and rotation to align the two proteins