Crystal Web viewer: third-party notices
=======================================

LIBRARIES
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three.js r128 (lib/three.min.js) and its OrbitControls example
(lib/OrbitControls.js), unmodified upstream files.
https://github.com/mrdoob/three.js

  Copyright 2010-2021 Three.js Authors
  SPDX-License-Identifier: MIT

  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.

DATA TABLES
-----------

data/sg_settings.json: the 530 space-group settings (Hall symbols, symbols
and symmetry operators), generated with spglib (BSD-3-Clause,
https://github.com/spglib/spglib), which encodes the space-group data of the
International Tables for Crystallography, Vol. A.

data/elements.json: covalent radii from B. Cordero et al., "Covalent radii
revisited", Dalton Trans. (2008) 2832-2838, doi:10.1039/b801115j;
van der Waals radii from A. Bondi, J. Phys. Chem. 68 (1964) 441,
doi:10.1021/j100785a001; element colours from the Jmol standard CPK palette
(https://jmol.sourceforge.net/jscolors/).

data/bonds.json: bond limits derived from the covalent radii above:
max = rc(A) + rc(B) + 0.35 A (0.50 A between a metal and O, S, Se, Te, F, Cl,
Br or I), min = (rc(A) + rc(B)) / 2.

EXAMPLE STRUCTURES
------------------

examples/*_<number>.cif: unmodified entries of the Crystallography Open
Database (https://www.crystallography.net/cod/), identified by their COD
number in the file name. COD data are in the public domain (CC0).

examples/MAPbBr3_300K.cif and examples/BA2PbI4_100K.cif: single-crystal X-ray
diffraction data provided by the site author.