def test_volmesh_data():
# if not os.path.exists("temp"):
# os.mkdir("temp")
vmesh1 = VolMesh.from_obj(compas.get('boxes.obj'))
data1 = vmesh1.to_data()
# vmesh1.to_json('temp/vmesh1.json')
# vmesh1.from_json('temp/vmesh1.json')
# vmesh1.validate_data()
# vmesh1.validate_json()
data1_ = vmesh1.to_data()
assert data1 == data1_
vmesh2 = VolMesh.from_data(data1_)
# vmesh2.validate_data()
# vmesh2.validate_json()
data2 = vmesh2.to_data()
# vmesh2.to_json('temp/vmesh2.json')
# vmesh2.from_json('temp/vmesh2.json')
data2_ = vmesh2.to_data()
assert data2 == data2_
assert data1 == data2
def test_json_volmesh():
before = VolMesh.from_vertices_and_cells(
[[0, 0, 0], [1, 0, 0], [1, 1, 0], [0, 1, 0], [0, 0, 1], [1, 0, 1],
[1, 1, 1], [0, 1, 1]], [[[0, 1, 5, 4], [1, 2, 5, 6], [2, 3, 7, 6],
[3, 0, 4, 7], [4, 5, 6, 7], [0, 3, 2, 1]]])
after = compas.json_loads(compas.json_dumps(before))
assert before.dtype == after.dtype
assert before.attributes == after.attributes
assert all(before.has_vertex(vertex) for vertex in after.vertices())
assert all(after.has_vertex(vertex) for vertex in before.vertices())
def volmesh_from_ansys_results(output_path, name):
output_path = os.path.join(output_path, name + '_output')
nodes, elements = get_nodes_elements_from_result_files(output_path)
nkeys = sorted(nodes.keys(), key=int)
vertices = [[nodes[k]['x'], nodes[k]['y'], nodes[k]['z']] for k in nkeys]
ckeys = sorted(elements.keys(), key=int)
cells = []
for ck in ckeys:
i, j, k, l, m, n, o, p = elements[ck]['nodes']
if k == l:
cells.append([[i, j, k], [i, j, m], [j, k, m], [k, i, m]])
else:
cells.append([[i, j, k, l], [i, j, n, m], [j, k, o, n],
[k, l, p, o], [l, i, m, p], [m, n, o, p]])
mesh = VolMesh.from_vertices_and_cells(vertices, cells)
return mesh
# from compas.geometry import centroid_points
# rs.AddPoint(centroid_points([a, b, c, d]))
# # sphere centre
#rs.EnableRedraw(True)
cells = []
for a, b, c, d in simplices:
#print a, b, c, d
halffaces = [[a, b, c], [a, b, d], [a, c, d], [b, c, d]]
cells.append(halffaces)
#halffaces.append([a, b, c])
#halffaces.append([c, b, a])
#halffaces.append([a, b, d])
#halffaces.append([d, b, a])
#halffaces.append([a, c, d])
#halffaces.append([d, c, a])
#halffaces.append([b, c, d])
#halffaces.append([d, c, d])
from compas.datastructures import VolMesh
volmesh = VolMesh.from_vertices_and_cells(points, cells)
print volmesh.cells()
#rs.EnableRedraw(False)
#for u, v in volmesh.edges():
# u = volmesh.vertex_coordinates(u)
# v = volmesh.vertex_coordinates(v)
# rs.AddLine(u, v)
#rs.EnableRedraw(True)
def clear(self):
self.clear_vertices()
self.clear_faces()
self.clear_edges()
# ==============================================================================
# Main
# ==============================================================================
if __name__ == "__main__":
import compas
from compas.datastructures import VolMesh
volmesh = VolMesh.from_obj(compas.get('boxes.obj'))
artist = VolMeshArtist(volmesh, layer='VolMeshArtist')
# artist.clear_layer()
artist.draw_vertices()
artist.draw_vertexlabels()
# artist.clear_vertexlabels()
artist.draw_edges()
artist.draw_edgelabels()
# artist.clear_edgelabels()
from compas.datastructures import VolMesh
from compas_fea.structure import Structure
from compas_fea.structure import FixedDisplacement
from compas_fea.structure import SolidSection
from compas_fea.structure import ElasticIsotropic
from compas_fea.structure import ElementProperties
from compas_fea.structure import GravityLoad
from compas_fea.structure import GeneralStep
# Author(s): Tomás Méndez Echenagucia (github.com/tmsmendez)
# get mesh from json file ------------------------------------------------------
filepath = compas_fea.get('volmesh_torus.json')
volmesh = VolMesh.from_json(filepath)
# add shell elements from mesh -------------------------------------------------
s = Structure(path=compas_fea.TEMP, name='torus')
s.add_nodes_elements_from_volmesh(volmesh, elset='solids')
# add supports --------------------------------------------------------------
nkeys = list(volmesh.vertices_where({'z': 0}))
s.add_set(name='support_nodes', type='NODE', selection=nkeys)
supppots = FixedDisplacement(name='supports', nodes='support_nodes')
s.add_displacement(supppots)
# add materials and sections -----------------------------------------------
E = 35 * 10**9
v = .02