def main():
mesh_filename = 'meshes/mini-airfoil.p.part'
cell2nodes = read_mesh_from_file(mesh_filename, 'cell_to_ord_nodes', int, frozenset)
node2node = read_mesh_from_file(mesh_filename, 'node_to_node', int, frozenset)
# DEBUGGING
global nodes2cell
nodes2cell = invert_list(cell2nodes)
## END DEBUGGING
# Setup conditions
seed(7)
start_node = randint(0, len(node2node) - 1)
start_node = 58
# Go
cell2ord = dict()
quad_search = QuadSearch(node2node)
for count, c in enumerate(quad_search.visit(start_node, BestFirstSearchCandidates)):
# print c
cell2ord[c.get_cell_id()] = count
def cell_labeller(old_cell, new_cell):
if old_cell in cell2ord:
return '*%d*' % cell2ord[old_cell]
else:
return old_cell
draw(label_cells=cell_labeller)
def draw(label_cells=None):
if label_cells: LABEL_CELLS = label_cells
print 'graph {'
printer = GraphPrinter()
# Read edge2node
printer.node2inedges, num_inedges = read_inverted_enumerated_map(FILENAME, 'inedge_to_nodes', 0)
printer.node2borderedges, num_borderedges = read_inverted_enumerated_map(FILENAME, 'borderedge_to_nodes', num_inedges)
# Read maps
printer.oldnode2newnode = read_one_to_one('oldnode_to_newnode')
printer.oldcell2newcell = read_one_to_one('oldcell_to_newcell')
printer.oldedge2newedge = invert_map(read_one_to_one('newedge_to_oldedge'))
# Append border edges
for edge_id in xrange(num_inedges, num_inedges + num_borderedges):
assert edge_id not in printer.oldedge2newedge
printer.oldedge2newedge[edge_id] = edge_id
# Build inverse maps
newnode2oldnode = invert_map(printer.oldnode2newnode)
newcell2oldcell = invert_map(printer.oldcell2newcell)
# Color structured nodes
for old_node, new_node in printer.oldnode2newnode.iteritems():
attributes = ['fontsize=%d' % NODEFONTSIZE]
if COLOR_STRUCTURED_NODES and new_node in new_structured_nodes:
attributes += ['fillcolor=red', 'style=filled']
print '"%s" [%s];' % (printer.get_node_name(old_node), ','.join(attributes))
# Draw edges
for source, targets in enumerate(read_mesh_from_file(FILENAME, 'node_to_node', int, list)):
for t in targets:
# Only one instance of each edge
if source >= t:
attribs = printer.get_edge_attribs(source, t)
print printer.edge_a_to_b(source, t, attribs)
# Draw cells
for new_cell, new_nodes in enumerate(read_mesh_from_file(FILENAME, 'new_cell_to_ord_nodes', int, list)):
n1, n2, n3, n4 = [ newnode2oldnode[new] for new in new_nodes ]
old_cell = newcell2oldcell[new_cell]
attribs = ['color=white', 'fontsize=%d' % CELLFONTSIZE]
attribs += printer.get_elem_label_attribute(LABEL_CELLS, old_cell, new_cell)
if COLOR_STRUCTURED_CELLS and new_cell in new_structured_cells:
attribs += ['fontcolor=brown']
else:
attribs += ['fontcolor=blue']
print printer.edge_a_to_b(n1, n3, attribs)
print '}'
def read_inverted_enumerated_map(filename, field, offset):
b2as = defaultdict(set)
a_count = 0
for a, bs in enumerate(read_mesh_from_file(FILENAME, field, int, list), offset):
a_count += 1
for b in bs:
b2as[b].add(a)
return b2as, a_count
def main(in_filename, out_filename, random_seed, start_node):
# Copy file
copyfile(in_filename, out_filename)
# Read adjacency list
log('Reading node2node map')
node2node = read_mesh_from_file(out_filename, 'node_to_node', int, frozenset)
# Set random seed, and choose a start node
if random_seed:
seed(random_seed)
if start_node is None:
start_node = randint(0, len(node2node) - 1)
log('Out of %d nodes, we chose %d' % (len(node2node), start_node))
# Detect node structure
log('Detecting structure')
node_structure = DetectNodeStructure(node2node, start_node)
# Write out structured node data
log('Writing out structured node to ' + out_filename)
write_structured_node_info(node_structure, out_filename)
log('Writing oldnode2newnode')
write_text_map('oldnode_to_newnode', node_structure.oldnode2newnode, out_filename)
# Renumber nodes
node_structure.structured_node_regions = [ renumber_value_lists(region, node_structure.oldnode2newnode)
for region in node_structure.structured_node_regions ]
# Reorder coordinates
log('Reordering coordinates')
coord_data = read_mesh_from_file(out_filename, 'coord_data', float, list)
new_coord_data = renumber_keys(coord_data, node_structure.newnode2oldnode)
write_new_coord_data(new_coord_data, out_filename)
# Figure out cell2nodes stuff
log('Figuring out cell2nodes')
cell2ordnodes = read_mesh_from_file(out_filename, 'cell_to_ord_nodes', int, list)
# Apply node renumbering to cell map
cell2ordnodes = renumber_value_lists(cell2ordnodes, node_structure.oldnode2newnode)
cell_structure = CellStructureFromNodeStructure(node_structure.structured_node_regions, cell2ordnodes)
log('Writing out structured cells to ' + out_filename)
write_structured_cell_info(cell_structure, out_filename)
# Figure out inedge2nodes
log('Figuring out inedge2nodes and inedge2cells')
inedge2nodes = read_mesh_from_file(out_filename, 'inedge_to_nodes', int, list)
inedge2cells = read_mesh_from_file(out_filename, 'inedge_to_cells', int, list)
# Apply node and cell renumbering to inedge maps
inedge2nodes = renumber_value_lists(inedge2nodes, node_structure.oldnode2newnode)
inedge2cells = renumber_value_lists(inedge2cells, cell_structure.oldcell2newcell)
# Renumber cells
for cell_region in cell_structure.structured_cell_regions:
cell_region.structured_cells = renumber_value_lists(cell_region.structured_cells, cell_structure.oldcell2newcell)
edge_structure = EdgeStructureFromNodeStructure(node_structure.structured_node_regions, cell_structure.structured_cell_regions, inedge2nodes, inedge2cells)
log('Writing out structured inedges to ' + out_filename)
write_structured_inedge_info(edge_structure, out_filename)
# Read border edges
borderedge2nodes = read_mesh_from_file(out_filename, 'borderedge_to_nodes', int, list)
borderedge2cell = read_mesh_from_file(out_filename, 'borderedge_to_cell', int, list)
# Apply node and cell renumbering to borderedge maps
new_borderedge2nodes = renumber_value_lists(borderedge2nodes, node_structure.oldnode2newnode)
new_borderedge2cell = renumber_value_lists(borderedge2cell, cell_structure.oldcell2newcell)
log('Writing renumbered borderedges to ' + out_filename)
write_renumbered_border_edges(new_borderedge2nodes, new_borderedge2cell, out_filename)
log('Writing oldcell2newcell')
write_text_map('oldcell_to_newcell', cell_structure.oldcell2newcell, out_filename)
log('Writing oldedge2newedge')
write_text_map('newedge_to_oldedge', edge_structure.newedge2oldedge, out_filename)
