Package Bio :: Package PDB :: Package QCPSuperimposer
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Package QCPSuperimposer

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Structural alignment using Quaternion Characteristic Polynomial (QCP).

QCPSuperimposer finds the best rotation and translation to put two point sets on top of each other (minimizing the RMSD). This is eg. useful to superimpose crystal structures. QCP stands for Quaternion Characteristic Polynomial, which is used in the algorithm.

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Classes [hide private]
  QCPSuperimposer
Quaternion Characteristic Polynomial (QCP) Superimposer.
Variables [hide private]
  __package__ = 'Bio.PDB.QCPSuperimposer'