public void testParseSymmetricNet() {
final PeriodicGraph H =
NetParser.stringToNet(
""
+ "NET # primitive cubic\n"
+ " Group P432\n"
+ " Node 1 0,0,0\n"
+ " Edge 1 1 x+1,y,z\n"
+ "END\n");
assertEquals(1, H.numberOfNodes());
assertEquals(3, H.numberOfEdges());
final INode v = (INode) H.nodes().next();
assertNotNull(H.getEdge(v, v, new Vector(1, 0, 0)));
assertNotNull(H.getEdge(v, v, new Vector(0, 1, 0)));
assertNotNull(H.getEdge(v, v, new Vector(0, 0, 1)));
final PeriodicGraph D =
NetParser.stringToNet(
""
+ "NET # the diamond net\n"
+ " Group Fd-3m\n"
+ " Node 1 3/8,3/8,3/8\n"
+ " Edge 1 1 1-x,1-y,1-z\n"
+ "END\n");
assertEquals(dia, D);
final PeriodicGraph sq =
NetParser.stringToNet(
""
+ "NET # square lattice on the plane\n"
+ " Group p4mm\n"
+ " Node 1 0,0\n"
+ " Edge 1 1 x+1,y\n"
+ "END\n");
assertEquals(1, sq.numberOfNodes());
assertEquals(2, sq.numberOfEdges());
final INode w = (INode) sq.nodes().next();
assertNotNull(sq.getEdge(w, w, new Vector(1, 0)));
assertNotNull(sq.getEdge(w, w, new Vector(0, 1)));
final PeriodicGraph hex1 =
NetParser.stringToNet(
""
+ "NET # planar honeycombs\n"
+ " Group p6mm\n"
+ " Node 1 2/3,1/3\n"
+ " Edge 1 1 y,y-x\n"
+ "END\n");
final PeriodicGraph hex2 =
NetParser.stringToNet(
""
+ "PERIODIC_GRAPH # planar honeycombs\n"
+ " 1 2 0 0\n"
+ " 1 2 1 0\n"
+ " 1 2 0 1\n"
+ "END\n");
assertEquals(hex2, hex1);
}
