def readMesh(path, name, params_simu):
if params_simu.meshFormat == 'GMSH':
#vertexes_coord, triangle_vertexes, triangles_physicalSurface = read_mesh_GMSH_1(os.path.join(path, name), params_simu.targetDimensions_scaling_factor, params_simu.z_offset)
vertexes_coord, triangle_vertexes, triangles_physicalSurface = read_mesh_GMSH_2(os.path.join(path, name), params_simu.targetDimensions_scaling_factor, params_simu.z_offset)
elif params_simu.meshFormat == 'GiD':
vertexes_coord, triangle_vertexes, triangles_physicalSurface = read_mesh_GiD(os.path.join(path, name), params_simu.targetDimensions_scaling_factor, params_simu.z_offset)
elif params_simu.meshFormat == 'ANSYS':
vertexes_coord, triangle_vertexes, triangles_physicalSurface = read_mesh_ANSYS(path, name, params_simu.targetDimensions_scaling_factor, params_simu.z_offset)
else:
print("setup_MLFMA_mesh.py : error on the mesh format. Enter a correct one please.")
return vertexes_coord, triangle_vertexes, triangles_physicalSurface
def constructFromGmshFile(self):
# we check to see if there is a delta_gap parameter in the geo file
if self.meshFormat == 'GMSH':
self.DELTA_GAP, ORIGIN_POINT, END_POINT = findDeltaGap(
self.path, self.targetName)
if self.DELTA_GAP:
## a delta gap should always be defined in the *.geo file as
## '// delta_gap' written aside the Line we want to be the delta gap
self.delta_gap = [ORIGIN_POINT, END_POINT]
self.delta_gap_indexes = [ORIGIN_POINT - 1, END_POINT - 1]
print("There is a delta gap in file " + str(self.geoName))
print("The extremities of the delta gap are points " +
str(self.delta_gap))
else:
# else we don't look for a delta gap in the file
pass
print(" Python construction of the Mesh object")
sys.stdout.flush()
print(" reading " + os.path.join(self.path, self.name) + "...")
t0 = time.clock()
if self.meshFormat == 'GMSH':
#self.vertexes_coord, self.triangle_vertexes, self.triangles_physicalSurface = read_mesh_GMSH_1(os.path.join(self.path, self.name), self.targetDimensions_scaling_factor, self.z_offset)
self.vertexes_coord, self.triangle_vertexes, self.triangles_physicalSurface = read_mesh_GMSH_2(
os.path.join(self.path, self.name),
self.targetDimensions_scaling_factor, self.z_offset)
elif self.meshFormat == 'GiD':
self.vertexes_coord, self.triangle_vertexes, self.triangles_physicalSurface = read_mesh_GiD(
os.path.join(self.path, self.name),
self.targetDimensions_scaling_factor, self.z_offset)
elif self.meshFormat == 'ANSYS':
self.vertexes_coord, self.triangle_vertexes, self.triangles_physicalSurface = read_mesh_ANSYS(
self.path, self.name, self.targetDimensions_scaling_factor,
self.z_offset)
else:
print(
"meshClass.py : error on the mesh format. Enter a correct one please."
)
self.time_reading = time.clock() - t0
print("reading mesh time = " + str(self.time_reading) + " seconds")
self.T = self.triangle_vertexes.shape[0]
print(" number of triangles = " + str(self.T))
print(" edges classification...")
sys.stdout.flush()
if self.languageForMeshConstruction == "C" or self.languageForMeshConstruction == "C++":
t0 = time.clock()
#self.triangles_surfaces, self.IS_CLOSED_SURFACE, self.RWGNumber_signedTriangles, self.RWGNumber_edgeVertexes, self.RWGNumber_oppVertexes = edges_computation_C_old(self.triangle_vertexes, self.vertexes_coord, self.path)
self.triangles_surfaces, self.IS_CLOSED_SURFACE, self.RWGNumber_signedTriangles, self.RWGNumber_edgeVertexes, self.RWGNumber_oppVertexes, self.triangle_vertexes = edges_computation_C(
self.triangle_vertexes, self.vertexes_coord, self.path)
self.N_RWG = self.RWGNumber_edgeVertexes.shape[0]
self.S = len(self.IS_CLOSED_SURFACE)
print(" test of the closed surfaces : " +
str(self.IS_CLOSED_SURFACE))
if self.meshFormat == 'GMSH':
if self.DELTA_GAP:
# here we must create a C++ function that calculates the mid point of each RWG and sees
# if the RWG is part of the delta gap. That function would use vertexes_coord and
# self.RWGNumber_edgeVertexes as inputs.
pass
self.time_edges_classification = time.clock() - t0
print(" edges classification cumulated time = " +
str(self.time_edges_classification) + " seconds")
self.time_effective_RWG_functions_computation = self.time_edges_classification
print(" Number of RWG = " + str(self.N_RWG))
else:
t0 = time.clock()
edgeNumber_vertexes, edgeNumber_triangles, triangle_adjacentTriangles, is_triangle_adjacentTriangles_via_junction = edges_computation(
self.triangle_vertexes, self.vertexes_coord)
self.time_edges_classification = time.clock() - t0
print(" edges classification cumulated time = " +
str(self.time_edges_classification) + " seconds")
print(" reordering triangles for normals coherency...")
sys.stdout.flush()
t0 = time.clock()
self.triangles_surfaces = reorder_triangle_vertexes(
triangle_adjacentTriangles,
is_triangle_adjacentTriangles_via_junction,
self.triangle_vertexes, self.vertexes_coord)
self.S = max(self.triangles_surfaces) + 1
self.time_reordering_normals = time.clock() - t0
print(" cumulated time = " + str(self.time_reordering_normals) +
" seconds")
print(" checking the closed and open surfaces...")
sys.stdout.flush()
t0 = time.clock()
self.IS_CLOSED_SURFACE, self.connected_surfaces, self.potential_closed_surfaces = is_surface_closed(
self.triangles_surfaces, edgeNumber_triangles)
print(" test of the closed surfaces : " +
str(self.IS_CLOSED_SURFACE))
print(" connected surfaces : " + str(self.connected_surfaces))
print(" potential closed surfaces : " +
str(self.potential_closed_surfaces))
print(
" computing the effective RWG functions and their opposite vertexes..."
)
sys.stdout.flush()
t0 = time.clock()
self.RWGNumber_signedTriangles, self.RWGNumber_edgeVertexes, self.N_edges, self.N_RWG = RWGNumber_signedTriangles_computation(
edgeNumber_triangles, edgeNumber_vertexes,
self.triangles_surfaces, self.IS_CLOSED_SURFACE,
self.triangle_vertexes, self.vertexes_coord)
del edgeNumber_vertexes
self.RWGNumber_oppVertexes = RWGNumber_oppVertexes_computation(
self.RWGNumber_signedTriangles, self.RWGNumber_edgeVertexes,
self.triangle_vertexes)
# memory-economic way for computing average_RWG_length
self.time_effective_RWG_functions_computation = time.clock() - t0
print(" effective RWG functions computation cumulated time = " +
str(self.time_effective_RWG_functions_computation))
print(" Number of edges = " + str(self.N_edges))
print(" Number of RWG = " + str(self.N_RWG))
sys.stdout.flush()
self.compute_RWG_CFIE_OK()
if self.N_RWG < 1e4:
stride = 1
else:
stride = self.N_RWG / 100
self.average_RWG_length = compute_RWG_meanEdgeLength(
self.vertexes_coord, self.RWGNumber_edgeVertexes, stride)