Python MeshInfo.set_facets方法代码示例

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
def test_tetgen():
    from meshpy.tet import MeshInfo, build
    mesh_info = MeshInfo()

    mesh_info.set_points([
        (0, 0, 0),
        (2, 0, 0),
        (2, 2, 0),
        (0, 2, 0),
        (0, 0, 12),
        (2, 0, 12),
        (2, 2, 12),
        (0, 2, 12),
        ])

    mesh_info.set_facets([
        [0, 1, 2, 3],
        [4, 5, 6, 7],
        [0, 4, 5, 1],
        [1, 5, 6, 2],
        [2, 6, 7, 3],
        [3, 7, 4, 0],
        ])

    build(mesh_info)

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
def main():
    mesh_info = MeshInfo()

    mesh_info.set_points([
        (0, 0, 0),
        (2, 0, 0),
        (2, 2, 0),
        (0, 2, 0),
        (0, 0, 12),
        (2, 0, 12),
        (2, 2, 12),
        (0, 2, 12),
        ])

    mesh_info.set_facets([
        [0, 1, 2, 3],
        [4, 5, 6, 7],
        [0, 4, 5, 1],
        [1, 5, 6, 2],
        [2, 6, 7, 3],
        [3, 7, 4, 0],
        ])

    mesh_info.save_nodes("bar")
    mesh_info.save_poly("bar")

    mesh = build(mesh_info)

    mesh.save_nodes("barout")
    mesh.save_elements("barout")
    mesh.save_faces("barout")

    mesh.write_vtk("test.vtk")

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
def generateCubeMesh():
    mesh_info = MeshInfo()
    mesh_info.set_points([
        (0, 0, 0), (1, 0, 0), (1, 1, 0), (0, 1, 0),
        (0, 0, 1), (1, 0, 1), (1, 1, 1), (0, 1, 1),
    ])
    mesh_info.set_facets([
        [0, 1, 2, 3],
        [4, 5, 6, 7],
        [0, 4, 5, 1],
        [1, 5, 6, 2],
        [2, 6, 7, 3],
        [3, 7, 4, 0],
    ])
    mesh = build(mesh_info)

    cellList = []
    vertexList = []
    mupifMesh = Mesh.UnstructuredMesh()

    print("Mesh Points:")
    for i, p in enumerate(mesh.points):
        print(i, p)
        vertexList.extend([Vertex.Vertex(i, i, p)])

    print("Point numbers in tetrahedra:")
    for i, t in enumerate(mesh.elements):
        print(i, t)
        cellList.extend([Cell.Tetrahedron_3d_lin(mupifMesh, i, i, t)])

    mupifMesh.setup(vertexList, cellList)

    return(mupifMesh)

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
def create_beam(vol):
    # build using MeshPy
    from meshpy.tet import MeshInfo,build

    mesh_info = MeshInfo()

    mesh_info.set_points([
        (0,0,0),
        (0,1,0),
        (0,1,1),
        (0,0,1),
        (5,0,0),
        (5,1,0),
        (5,1,1),
        (5,0,1),
        ])

    mesh_info.set_facets([
        [0,1,2,3],
        [4,5,6,7],
        [0,1,5,4],
        [1,2,6,5],
        [0,3,7,4],
        [3,2,6,7],
        ])


    mesh = build(mesh_info,max_volume=vol)

    return fmsh.MeshPyTet(mesh)

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
def generate_Preview():
        
    bpy.ops.object.mode_set(mode = 'OBJECT', toggle = False)  
    
    config = bpy.context.scene.CONFIG_MeshPy
    
    vertList = []
    faceList = []
    meshPoints = []
    meshFacets = []
    split_faceList = []
    split_vertList = []
    ob = bpy.context.active_object
    obname = ob.name
    
    #compute mesh
    compute_vertices(ob, meshPoints)
    compute_polygones(ob, meshFacets)
    
    if config.make_subdivision == False:
        arg = "Y"
    else:
        arg = ""
        
    mesh_info = MeshInfo()
    mesh_info.set_points(meshPoints)
    mesh_info.set_facets(meshFacets)
    print(meshPoints)
    print(meshFacets)
    #args = ("pq" + str(config.ratio_quality) + "a" + str(config.ratio_maxsize) + str(arg))
    '''

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
def brep2lar(larBrep):
    V,FV = larBrep    
    mesh_info = MeshInfo()
    mesh_info.set_points(V)
    mesh_info.set_facets(FV)
    mesh = build(mesh_info)
    W = [v for h,v in enumerate(mesh.points)]
    CW = [tet for k,tet in enumerate(mesh.elements)]
    FW = sorted(set(AA(tuple)(CAT(AA(faces)(CW)))))
    EW = sorted(set(AA(tuple)(CAT(AA(edges)(FW)))))
    return W,CW,FW,EW

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
def save_mesh(filepath,
              mesh,
              boundary_condition,
              use_graphics,
              fem_dimensions,
              mass_density,
              poisson_ratio,
              young_modulus,
              meshpy
             ):
    """Write mesh data out to ply file

       If graphics are checked to be exported, it will prep any UVs and normals it can and prepare
       a full list of faces FEM3D meshes have their mesh run through MeshPy which is a Python
       interface for TetGen
    """

    file = open(filepath, "w", encoding="utf8", newline="\n")
    fwrite = file.write

    verts = []
    faces = []
    elements = []
    uvcoords = {}
    normals = {}

    has_uv = bool(mesh.uv_textures) and mesh.uv_textures.active
    if has_uv and use_graphics:
        mesh.calc_tessface()
        uv_data = mesh.tessface_uv_textures.active.data
        for i, polygon in enumerate(mesh.polygons):
            uv = uv_data[i].uv1, uv_data[i].uv2, uv_data[i].uv3, uv_data[i].uv4
            for j, vert in enumerate(polygon.vertices):
                uvcoord = uv[j][0], uv[j][1]
                normal = mesh.vertices[vert].normal[:]
                vertcoord = mesh.vertices[vert].co[:]
                if vertcoord not in uvcoords:
                    uvcoords[vertcoord] = uvcoord
                if vertcoord not in normals:
                    normals[vertcoord] = normal

    if fem_dimensions == '3':
        from meshpy.tet import MeshInfo, build, Options

        bpy.ops.object.mode_set(mode='OBJECT', toggle=False)
        bpy.context.scene.update()

        # get list of verts and faces direct from mesh
        mesh_verts = []
        for vert in mesh.vertices:
            mesh_verts.append(vert.co[:])

        mesh_faces = []
        for face in mesh.polygons:
            mesh_faces.append(face.vertices[:])

        args = meshpy
        mesh_info = MeshInfo()
        mesh_info.set_points(mesh_verts)
        mesh_info.set_facets(mesh_faces)
        tets = build(mesh_info, Options(args),
                     verbose=True,
                     attributes=False,
                     volume_constraints=False,
                     max_volume=None,
                     diagnose=False,
                     insert_points=None)

        # Ply prep by creating updated vert list and face list using tets.points and tets.elements
        for point in tets.points:
            verts.append((point[0], point[1], point[2]))

        for tet in tets.elements:
            elements.append((tet[0], tet[1], tet[2], tet[3]))

        for face in tets.faces:
            faces.append((face[2], face[1], face[0]))

    else:
        for vert in mesh.vertices:
            verts.append((vert.co[0], vert.co[1], vert.co[2]))

        for face in mesh.polygons:
            if len(face.vertices) == 3:
                faces.append((face.vertices[0], face.vertices[1], face.vertices[2]))
            else:
                faces.append((face.vertices[0], face.vertices[1], face.vertices[2]))
                faces.append((face.vertices[0], face.vertices[2], face.vertices[3]))

    fwrite("ply\n")
    fwrite("format ascii 1.0\n")
    fwrite("comment Created by OpenSurgSim FEM exporter for Blender\n")
    fwrite("comment MeshPy options '%s'\n" % meshpy)

    fwrite("element vertex %d\n" % len(verts))
    fwrite("property double x\n"
           "property double y\n"
           "property double z\n")

    if use_graphics:
#.........这里部分代码省略.........

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
def make_box_mesh(a=(0, 0, 0), b=(1, 1, 1),
        max_volume=None, periodicity=None,
        boundary_tagger=(lambda fvi, el, fn, all_v: []),
        return_meshpy_mesh=False):
    """Return a mesh for a brick from the origin to `dimensions`.

    *max_volume* specifies the maximum volume for each tetrahedron.
    *periodicity* is either None, or a triple of bools, indicating
    whether periodic BCs are to be applied along that axis.
    See :func:`make_conformal_mesh` for the meaning of *boundary_tagger*.

    A few stock boundary tags are provided for easy application
    of boundary conditions, namely plus_[xyz] and minus_[xyz] tag
    the appropriate faces of the brick.
    """

    def count(iterable):
        result = 0
        for i in iterable:
            result += 1
        return result

    from meshpy.tet import MeshInfo, build
    from meshpy.geometry import make_box

    points, facets, _, facet_markers = make_box(a, b)

    mesh_info = MeshInfo()
    mesh_info.set_points(points)
    mesh_info.set_facets(facets, facet_markers)

    if periodicity is None:
        periodicity = (False, False, False)

    axes = ["x", "y", "z"]

    per_count = count(p for p in periodicity if p)

    marker_to_tag = {}
    mesh_periodicity = []
    periodic_tags = set()

    if per_count:
        mesh_info.pbc_groups.resize(per_count)
    pbc_group_number = 0
    for axis, axis_per in enumerate(periodicity):
        minus_marker = 1+2*axis
        plus_marker = 2+2*axis

        minus_tag = "minus_"+axes[axis]
        plus_tag = "plus_"+axes[axis]

        marker_to_tag[minus_marker] = minus_tag
        marker_to_tag[plus_marker] = plus_tag

        if axis_per:
            pbcg = mesh_info.pbc_groups[pbc_group_number]
            pbc_group_number += 1

            pbcg.facet_marker_1 = minus_marker
            pbcg.facet_marker_2 = plus_marker

            translation = [0, 0, 0]
            translation[axis] = b[axis]-a[axis]
            pbcg.set_transform(translation=translation)

            mesh_periodicity.append((minus_tag, plus_tag))
            periodic_tags.add(minus_tag)
            periodic_tags.add(plus_tag)
        else:
            mesh_periodicity.append(None)

    generated_mesh = build(mesh_info, max_volume=max_volume)

    fvi2fm = generated_mesh.face_vertex_indices_to_face_marker

    def wrapped_boundary_tagger(fvi, el, fn, all_v):
        face_tag = marker_to_tag[fvi2fm[frozenset(fvi)]]

        if face_tag in periodic_tags:
            return [face_tag]
        else:
            return [face_tag] + boundary_tagger(fvi, el, fn, all_v)

    from hedge.mesh import make_conformal_mesh_ext
    from hedge.mesh.element import Tetrahedron
    vertices = numpy.asarray(generated_mesh.points, dtype=float, order="C")
    result = make_conformal_mesh_ext(
            vertices,
            [Tetrahedron(i, el_idx, vertices)
                for i, el_idx in enumerate(generated_mesh.elements)],
            wrapped_boundary_tagger,
            periodicity=mesh_periodicity)

    if return_meshpy_mesh:
        return result, generated_mesh
    else:
        return result

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]

#.........这里部分代码省略.........
                if ElementPoints[2] != ElementPoints[3]:
                    for point in [ElementPoints[0],ElementPoints[2],ElementPoints[3]]:
                        if not point in MeshPointsIndex:
                            MeshPointsIndex[point] = PointIndex
                            MeshPoints.append(False)
                            MeshPoints[PointIndex] = NumberedPoints['points'][point]['point']
                            PointIndex += 1
                        MeshFacet.append(MeshPointsIndex[point])
                    MeshFacets.append(MeshFacet)
            else:
                for point in ElementPoints:
                    if not point in MeshPointsIndex:
                        MeshPointsIndex[point] = PointIndex
                        MeshPoints.append(False)
                        MeshPoints[PointIndex] = NumberedPoints['points'][point]['point']
                        PointIndex += 1
                    if not MeshPointsIndex[point] in MeshFacet:
                        MeshFacet.append(MeshPointsIndex[point])
                    else:
                        print "Mesh error or 3-point 3DFACE."
                MeshFacets.append(MeshFacet)
                MeshFacet = []

        for point in list(set(AdditionalPoints)):
            if not point in MeshPointsIndex: #See whether the point is already indexed by its native number
                MeshPointsIndex[point] = PointIndex
                MeshPoints.append(False)
                MeshPoints[PointIndex] = NumberedPoints['points'][point]['point']
                PointIndex += 1

        
        saveobject(MeshFacets, r'MeshFacets')
        saveobject(MeshPoints, r'MeshPoints')            
        mesh_info.set_facets(MeshFacets)
        mesh_info.set_points(MeshPoints)
        #insertaddpoints
        
        #points = np.array([list(x) for x in MeshPoints])
        #qhull = scipy.spatial.Delaunay(points)
        #mesh_info.Options(switches='pq')
        #mesh_info.set_points([
        #    (0,0,0), (12,0,0), (12,12,0), (0,12,0),
        #    (0,0,12), (12,0,12), (12,12,12), (0,12,12),
        #    ])
        #mesh_info.set_facets([
        #    [0,1,2,3],
        #    [4,5,6,7],
        #    [0,4,5,1],
        #    [1,5,6,2],
        #    [2,6,7,3],
        #    [3,7,4,0],
        #    ])
        
        #opts = Options(switches='pq')
        #opts.maxvolume = 0.0001
        #opts.parse_switches()

        mesh_info.regions.resize(1)
        mesh_info.regions[0] = [
                                MeshPoints[0][0], MeshPoints[0][1], MeshPoints[0][2], # point in volume -> first box
                                0, # region tag (user-defined number)
                                Parameters['maxvolume'], # max tet volume in region
                                ]
        mesh = build(mesh_info, options=Options(switches="pqT", epsilon=Parameters['tolerance']), volume_constraints=True)
        print "Created mesh with {} points, {} faces and {} elements.".format(len(mesh.points), len(mesh.faces), len(mesh.elements))
        #mesh = build(mesh_info, options=Options(switches="pTi", epsilon=Parameters['tolerance'], insertaddpoints=True), volume_constraints=True, insert_points=additional_points)

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
# mesh_info.set_facets([
#     [0,1,2],
#     [0,1,3],
#     [1,2,3],
#     [3,2,0]
#     ])

#Cubic entire cubic voronoi cell....
a = 0.5; b = -0.5
mesh_info.set_points([
    (b,b,b), (b,b,a), (b,a,a),(b,a,b),(a,b,b), (a,b,a), (a,a,a),(a,a,b)
    ])
mesh_info.set_facets([
    [0,1,2,3],
    [0,1,5,4],
    [0,4,7,3],
    [6,2,1,5],
    [6,2,3,7],
    [6,7,4,5]])

addpoints = [(0.0,0.0,0.0), (0.375,0.375,0.375)]
# addpoints = [array([0.0,0.0,0.0]), array(0.375,0.375,0.375)]

opts = Options("VO9pa0.04") # Overriding 'pq'  

mesh = build(mesh_info,options=opts, insert_points = addpoints)
# mesh = build(mesh_info,max_volume = 0.1)
vols = []
tets = []
points = []
print "Mesh Points:"

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
from meshpy.tet import MeshInfo, build

mesh_info = MeshInfo()
mesh_info.set_points([
    (0,0,0), (2,0,0), (2,2,0), (0,2,0),
    (0,0,12), (2,0,12), (2,2,12), (0,2,12),
    ])
mesh_info.set_facets([
    [0,1,2,3],
    [4,5,6,7],
    [0,4,5,1],
    [1,5,6,2],
    [2,6,7,3],
    [3,7,4,0],
    ])
mesh = build(mesh_info)
print "Mesh Points:"
for i, p in enumerate(mesh.points):
    print i, p
print "Point numbers in tetrahedra:"
for i, t in enumerate(mesh.elements):
    print i, t
mesh.write_vtk("test.vtk")

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
# vertex indices for a box missing the -z face
box_without_minus_z = [ 
    [4,5,6,7],
    [0,4,5,1],
    [1,5,6,2],
    [2,6,7,3],
    [3,7,4,0],
    ]

def add_to_all_vertex_indices(facets, increment):
    return [[pt+increment for pt in facet] for facet in facets]

mesh_info.set_facets(
    [[0,1,2,3]] # base
    +box_without_minus_z # first box
    +add_to_all_vertex_indices(box_without_minus_z, 4) # second box
    )

# set the volume properties -- this is where the tet size constraints are
mesh_info.regions.resize(2)
mesh_info.regions[0] = [0,0,2, # point in volume -> first box
        0, # region tag (user-defined number)
        1e-1, # max tet volume in region
        ]
mesh_info.regions[1] = [0,0,7, # point in volume -> second box
        0, # region tag (user-defined number, arbitrary)
        1e-2, # max tet volume in region
        ]

mesh = build(mesh_info, volume_constraints=True)

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
def coarse_gen(cd,bdim,bmin,file_name):
	# INPUT: voxel cube side length (fl), box dimensions (fl), box minimum values (fl), name of file to create for mesh output (str)
	# This function generates a coarse mesh given info from NEURON sections.
	# Returns this mesh as a STEPS tuple, of which entry 0 is a steps.geom.Tetmesh object,
	# also saves STEPS format files for the Tetmesh to current directory under given file name (xml & ASCII file formats).

	## CALCULATE BOX INFO ##
	box_w = bdim[0]
	box_l = bdim[1]
	box_h = bdim[2]

	min_x = bmin[0]
	min_y = bmin[1]
	min_z = bmin[2]

	cl = cd

	if not (box_w % cl == box_l % cl == box_h % cl == 0):
		print 'ERRROR: voxel cube side length not a common factor of all box dimensions'
		sys.exit()
	
	wpoints = 1+(box_w)/cl
	lpoints = 1+(box_l)/cl 
	hpoints = 1+(box_h)/cl

	print "cube side length: ", cl
	print "box w,l,h: ", box_w,box_l,box_h
	print "w,l,h # points: ", wpoints,lpoints,hpoints

	cpoints = []
	hfacets = []
	vfacets = []

	## GENERATE POINTS AND FACETS ##
	for hp in range(int(hpoints)):
		for lp in range(int(lpoints)):
			for wp in range(int(wpoints)):
				cpoints.append((min_x+wp*cl,min_y+lp*cl,min_z+hp*cl))
				pindex = (hp*lpoints*wpoints)+(lp*wpoints)+wp
				# horizontal facets
				if (wp < int(wpoints)-1 and lp < int(lpoints)-1):
					hfacets.append([int(pindex), int(pindex+1), int(pindex+1+wpoints), int(pindex+wpoints)])
				# vertical facets
				if (hp > 0):
					if (wp > 0):
						vfacets.append([int(pindex),int(pindex-1),int(pindex-1-lpoints*wpoints),int(pindex-lpoints*wpoints)])
					if (lp > 0):
						vfacets.append([int(pindex),int(pindex-wpoints),int(pindex-wpoints-lpoints*wpoints),int(pindex-lpoints*wpoints)])
	all_facets = hfacets+vfacets

	## PASS MESH TO STEPS ##
	mesh_info = MeshInfo()
	mesh_info.set_points(cpoints)
	mesh_info.set_facets(all_facets)
	m = build(mesh_info)

	# write mesh proxies
	nodeproxy = smeshio.ElementProxy('node',3)
	for i, p in enumerate(m.points):
	    nodeproxy.insert(i,p)

	tetproxy = smeshio.ElementProxy('tet',4)
	newtet = [0,0,0,0]
	for i, t in enumerate(m.elements):
	    newtet[0] = nodeproxy.getSTEPSID(int(t[0]))
	    newtet[1] = nodeproxy.getSTEPSID(int(t[1]))
	    newtet[2] = nodeproxy.getSTEPSID(int(t[2]))
	    newtet[3] = nodeproxy.getSTEPSID(int(t[3]))
	    tetproxy.insert(i, newtet)
	 
	# build mesh from proxies and save in STEPS format (xml & ASCII)
	nodedata = nodeproxy.getAllData()
	tetdata = tetproxy.getAllData()
	newmesh = steps.geom.Tetmesh(nodedata, tetdata)
	smeshio.saveMesh(file_name,newmesh)

	# Load mesh into STEPS
	steps_mesh = smeshio.loadMesh(file_name)
	print "STEPS loaded Tetmesh successfully."
	print "# Vertices: ", steps_mesh[0].countVertices()
	print "# Tets: ", steps_mesh[0].countTets()
	print "# Faces/Tris: ", steps_mesh[0].countTris()
	return steps_mesh

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
def generate_TetMesh():
    
    bpy.ops.object.mode_set(mode = 'OBJECT', toggle = False) 
    bpy.context.scene.update()  
    print("Scene Updated!")
    
    config = bpy.context.scene.CONFIG_MeshPy
    tetIndex = 0
    vertList = []
    faceList = []
    meshPoints = []
    meshFacets = []
    split_faceList = []
    split_vertList = []
    
    ob = bpy.context.active_object
    obname = ob.name
    
    #convert all faces to triangles for testing
    ### that did not help with the crash problem:(
    '''
    for vert in ob.data.vertices:
        vert.select = True
    bpy.ops.object.mode_set(mode = 'EDIT', toggle = False) 
    bpy.ops.mesh.quads_convert_to_tris()
    bpy.ops.object.mode_set(mode = 'OBJECT', toggle = False) 
    '''
    #compute mesh
    compute_vertices(ob, meshPoints)
    compute_faces(ob, meshFacets)
    
    if config.make_subdivision == False:
        arg = "Y"
    else:
        arg = ""
        
    mesh_info = MeshInfo()
    mesh_info.set_points(meshPoints)
    mesh_info.set_facets(meshFacets)
    debugArg = ""
    args = (debugArg + "pq" + str(config.ratio_quality) + "a" + str(config.ratio_maxsize) + str(arg))
    #args = ("o2" + str(arg))
    tetmesh = build(mesh_info, Options(args), 
            verbose = True,
            attributes = False, 
            volume_constraints = False,
            max_volume = None,          
            diagnose = False, 
            insert_points = None)
            
    compute_mesh(tetmesh, vertList, faceList)   
    
    ##all this should only be executed when preview is disabled
    if config.make_split == True:
        ##add counter to iterate to iterate the loop through all tetras
        #print(len(tetmesh.elements))
        
        while tetIndex < len(tetmesh.elements):
            compute_mesh_split(tetmesh, split_faceList, split_vertList, vertList)
            #print("split_faceList ", tetIndex, ": ", split_faceList[tetIndex])
            #print("split_vertList ", tetIndex, ": ", split_vertList[tetIndex])
            
            #put this in a separate loop maybe bring some speed up        
            #create mesh
            tetname = obname + "Tet"
            tet = create_mesh(tetname, split_vertList[tetIndex], split_faceList[tetIndex])
            #run configs
            enable_game(config, tet)
            enable_physics(config, tet, tetname)
            
            #bpy.ops.group.create(name='test') 
            world_correction(config, ob, tet)
                          
            tetIndex = tetIndex + 1  
    else:
        #create mesh
        tetname = obname + "Tet"  
        tetMesh = create_mesh(tetname, vertList, faceList)
        #run configs
        enable_game(config, tetMesh)
        enable_physics(config, tetMesh, tetname)
        world_correction(config, ob, tetMesh)  

# 需要导入模块: from meshpy.tet import MeshInfo [as 别名]
# 或者: from meshpy.tet.MeshInfo import set_facets [as 别名]
    [3,7,4,0],
    ]

def add_to_all_vertex_indices(facets, increment):
    return [[pt+increment for pt in facet] for facet in facets]

facets =  [[0,1,2,3]] + box_without_minus_z # first box
facets += add_to_all_vertex_indices(box_without_minus_z, 4)# second box
facets += add_to_all_vertex_indices(box_without_minus_z, 8)# third box

facet_mrks = []
for f in facets:
    facet_mrks.append(-(int(f == max(facets))))  # Finding the surface boundary facet and labeling negative

mesh_info.set_facets(facets, 
        facet_mrks   # Surface boundary conditions
    )

# figuring out what each of the volume constraints should be
# the edge length here is divided by four to make sure there are at least 3 nodes per layer

vc = lambda x: (x/4)**3/6


# set the volume properties -- this is where the tet size constraints are
mesh_info.regions.resize(3)
mesh_info.regions[0] = [0,0,1-delta_con/2,# point in volume -> first box
        10, # region tag (user-defined number)
        vc(delta_con), # max tet volume in region
        ]
mesh_info.regions[1] = [0,0,((1-delta_con)-delta_base/2), # point in volume -> second box