GEOM_Spanner.py
def MakeSpanner (geompy, math, isBlocksTest = 0, isMeshTest = 0, smesh = None):
### Variables ###
th = 4.0
### Basic points and directions ###
p0 = geompy.MakeVertex(0., 0., 0.)
pth = geompy.MakeVertex(0., 0., th)
vx = geompy.MakeVectorDXDYDZ(1., 0., 0.)
vy = geompy.MakeVectorDXDYDZ(0., 1., 0.)
vz = geompy.MakeVectorDXDYDZ(0., 0., 1.)
vxy = geompy.MakeVectorDXDYDZ(1., 1., 0.)
### Block 1 ###
p_10_0 = geompy.MakeVertex(10., 0., 0.)
p_10_25 = geompy.MakeVertex(10., 25., 0.)
p_0_35 = geompy.MakeVertex( 0., 35., 0.)
p_0_10 = geompy.MakeVertex( 0., 10., 0.)
Face11 = geompy.MakeQuad4Vertices(p_10_0, p_10_25, p_0_10, p_0_35);
id_face11 = geompy.addToStudy(Face11, "1 Face for Block 1")
Face12 = geompy.MakeTranslationTwoPoints(Face11, p0, pth)
id_face12 = geompy.addToStudy(Face12, "2 Face for Block 1")
Block1 = geompy.MakeHexa2Faces(Face11, Face12)
id_block1 = geompy.addToStudy(Block1, "Block 1")
### Block 2 ###
p_15_0 = geompy.MakeVertex(15., 0., 0.)
p_15_20 = geompy.MakeVertex(15., 20., 0.)
Edge21 = geompy.MakeEdge(p_15_0, p_15_20)
id_edge21 = geompy.addToStudy(Edge21, "1 Edge for Block 2")
Edge22 = geompy.GetEdge(Block1, p_10_0, p_10_25)
id_edge22 = geompy.addToStudy(Edge22, "2 Edge for Block 2")
Face21 = geompy.MakeQuad2Edges(Edge21, Edge22);
id_face21 = geompy.addToStudy(Face21, "1 Face for Block 2")
Face22 = geompy.MakeTranslationTwoPoints(Face21, p0, pth)
id_face22 = geompy.addToStudy(Face22, "2 Face for Block 2")
Block2 = geompy.MakeHexa2Faces(Face21, Face22)
id_block2 = geompy.addToStudy(Block2, "Block 2")
### Block 3 ###
p_15_10_1 = geompy.MakeVertex(15., 10., 1.)
Face31 = geompy.GetFaceNearPoint(Block2, p_15_10_1)
id_face31 = geompy.addToStudy(Face31, "1 Face for Block 3")
Prism1 = geompy.MakePrismVecH(Face31, vx, 5);
id_prism1 = geompy.addToStudy(Prism1, "Prism to be Block 3")
nbFaces = geompy.ShapesOp.NumberOfFaces(Prism1)
if nbFaces == 6:
print "Prism 1 is a hexahedral solid"
else:
print "Prism 1 is not a hexahedral solid"
Prism1_faces = geompy.SubShapeAllSortedCentres(Prism1, geompy.ShapeType["FACE"])
ii = 1
for aFace in Prism1_faces:
name = geompy.SubShapeName(aFace, Prism1)
Id_Face = geompy.addToStudyInFather(Prism1, aFace, name)
ii = ii + 1
Block3 = geompy.MakeHexa(Prism1_faces[0], Prism1_faces[1],
Prism1_faces[2], Prism1_faces[3],
Prism1_faces[4], Prism1_faces[5]);
id_block3 = geompy.addToStudy(Block3, "Block 3")
### Block 4 ###
Face41 = geompy.GetOppositeFace(Block3, Face31)
id_face41 = geompy.addToStudy(Face41, "1 Face for Block 4")
p_25_5 = geompy.MakeVertex(25., 5., 0.)
p_25_20 = geompy.MakeVertex(25., 20., 0.)
Edge41 = geompy.MakeEdge(p_25_5, p_25_20)
id_edge41 = geompy.addToStudy(Edge41, "1 Edge for Block 4")
p_25_5_2 = geompy.MakeVertex(25., 5., th)
p_25_20_2 = geompy.MakeVertex(25., 20., th)
Edge42 = geompy.MakeEdge(p_25_5_2, p_25_20_2)
id_edge42 = geompy.addToStudy(Edge42, "2 Edge for Block 4")
Edge43 = geompy.MakeEdge(p_25_5, p_25_5_2)
id_edge43 = geompy.addToStudy(Edge43, "3 Edge for Block 4")
Edge44 = geompy.MakeEdge(p_25_20, p_25_20_2)
id_edge44 = geompy.addToStudy(Edge44, "4 Edge for Block 4")
Face42 = geompy.MakeQuad(Edge41, Edge42, Edge43, Edge44)
id_face42 = geompy.addToStudy(Face42, "2 Face for Block 4")
Block4 = geompy.MakeHexa2Faces(Face41, Face42)
id_block4 = geompy.addToStudy(Block4, "Block 4")
### Block 5 ###
p_25_30 = geompy.MakeVertex(25., 30., 0.)
p_25_30_1 = geompy.MakeVertex(25., 30., 1)
axis_rot = geompy.MakeVector(p_25_30, p_25_30_1)
Face51 = Face42
Face52 = geompy.MakeRotation(Face51, axis_rot, math.pi/2.)
id_face52 = geompy.addToStudy(Face52, "2 Face for Block 5")
Block5 = geompy.MakeHexa2Faces(Face51, Face52)
id_block5 = geompy.addToStudy(Block5, "Block 5")
### Compound of blocks 1 - 4 ###
Comp1234 = geompy.MakeCompound([Block1, Block2, Block3, Block4])
Glue1234 = geompy.MakeGlueFaces(Comp1234, 1e-5)
id_glue1234 = geompy.addToStudy(Glue1234, "Glue 1234")
plane_mirror = geompy.MakePlane(p_25_30, vxy, 100.)
#id_plane_mirror = geompy.addToStudy(plane_mirror, "Plane for mirror")
Mirror1 = geompy.MakeMirrorByPlane(Glue1234, plane_mirror)
id_mirror1 = geompy.addToStudy(Mirror1, "Mirror 1")
### The second end ###
p_18_0 = geompy.MakeVertex(18., 0., 0.)
p_20_0 = geompy.MakeVertex(20., 0., 0.)
p_40_0 = geompy.MakeVertex(40., 0., 0.)
Edge1s = geompy.MakeEdge(p_20_0, p_40_0)
id_edge1s = geompy.addToStudy(Edge1s, "1 Edge for Block 1s")
Edge2s = geompy.MakeRotation(Edge1s, vz, math.pi/12.)
id_edge2s = geompy.addToStudy(Edge2s, "2 Edge for Block 1s")
p_18_0_r = geompy.MakeRotation(p_18_0, vz, math.pi/24.)
p_20_0_r = geompy.MakeRotation(p_20_0, vz, math.pi/12.)
p_40_0_r = geompy.MakeRotation(p_40_0, vz, math.pi/12.)
Edge3s = geompy.MakeEdge(p_40_0, p_40_0_r)
id_edge3s = geompy.addToStudy(Edge3s, "3 Edge for Block 1s")
Edge4s = geompy.MakeArc(p_20_0, p_18_0_r, p_20_0_r)
id_edge4s = geompy.addToStudy(Edge4s, "4 Edge for Block 1s")
Face1s = geompy.MakeQuad(Edge1s, Edge2s, Edge3s, Edge4s)
id_face1s = geompy.addToStudy(Face1s, "1 Face for Block 1s")
Block1s = geompy.MakePrismVecH(Face1s, vz, th);
id_block1s = geompy.addToStudy(Block1s, "Block 1s")
p_30_0_1 = geompy.MakeVertex(30., 0., 1.)
Face2s = geompy.GetFaceNearPoint(Block1s, p_30_0_1)
id_face2s = geompy.addToStudy(Face2s, "2 Face of Block 1s")
f2s_ind = geompy.LocalOp.GetSubShapeIndex(Block1s, Face2s)
Block1s_tr1 = geompy.MakeMultiTransformation1D(Block1s, f2s_ind, 0, 24)
id_block1s_tr1 = geompy.addToStudy(Block1s_tr1, "Multi-transformed Block 1s")
p_60_150_0 = geompy.MakeVertex(60., -150., 0.)
Gear = geompy.MakeTranslationTwoPoints(Block1s_tr1, p0, p_60_150_0)
id_gear = geompy.addToStudy(Gear, "Gear")
### Link two parts ###
### Linking Block 1 ###
p_55_0_1 = geompy.MakeVertex(55., 0., 1.)
p_55_110_1 = geompy.MakeVertex(55., -110., 1.)
Face11l = geompy.GetFaceNearPoint(Block5, p_55_0_1)
id_face11l = geompy.addToStudy(Face11l, "1 Face for Linking Block 1")
Face12l = geompy.GetFaceNearPoint(Gear, p_55_110_1)
id_face12l = geompy.addToStudy(Face12l, "2 Face for Linking Block 1")
Block1l = geompy.MakeHexa2Faces(Face11l, Face12l)
id_block1l = geompy.addToStudy(Block1l, "Linking Block 1")
### Linking Block 2 ###
p_25_0_1 = geompy.MakeVertex(25., 0., 1.)
p_45_110_1 = geompy.MakeVertex(45., -110., 1.)
Face21l = geompy.GetFaceNearPoint(Block4, p_25_0_1)
id_face21l = geompy.addToStudy(Face21l, "1 Face for Linking Block 2")
Face22l = geompy.GetFaceNearPoint(Gear, p_45_110_1)
id_face22l = geompy.addToStudy(Face22l, "2 Face for Linking Block 2")
Block2l = geompy.MakeHexa2Faces(Face21l, Face22l)
id_block2l = geompy.addToStudy(Block2l, "Linking Block 2")
### Linking Block 3 ###
p_55_30_1 = geompy.MakeVertex(55., 30., 1.)
p_65_110_1 = geompy.MakeVertex(65., -110., 1.)
Face31l = geompy.GetFaceNearPoint(Mirror1, p_55_30_1)
id_face31l = geompy.addToStudy(Face31l, "1 Face for Linking Block 3")
Face32l = geompy.GetFaceNearPoint(Gear, p_65_110_1)
id_face32l = geompy.addToStudy(Face32l, "2 Face for Linking Block 3")
Block3l = geompy.MakeHexa2Faces(Face31l, Face32l)
id_block3l = geompy.addToStudy(Block3l, "Linking Block 3")
### Handle ###
CompLB = geompy.MakeCompound([Block1l, Block2l, Block3l])
Handle = geompy.MakeGlueFaces(CompLB, 1e-5)
id_handle = geompy.addToStudy(Handle, "Handle")
Block1h = geompy.GetBlockNearPoint(Handle, p_45_110_1)
id_block1h = geompy.addToStudyInFather(Handle, Block1h, "Block 1 of Handle")
Block2h = geompy.GetBlockNearPoint(Handle, p_65_110_1)
id_block2h = geompy.addToStudyInFather(Handle, Block2h, "Block 2 of Handle")
Face11h = geompy.GetFaceByNormale(Block1h, vx)
id_face11h = geompy.addToStudyInFather(Block1h, Face11h, "Face 1")
Face12h = geompy.GetOppositeFace(Block1h, Face11h)
id_face12h = geompy.addToStudyInFather(Block1h, Face12h, "Face 2")
Face21h = geompy.GetFaceByNormale(Block2h, vx)
id_face21h = geompy.addToStudyInFather(Block2h, Face21h, "Face 1")
Face22h = geompy.GetOppositeFace(Block2h, Face21h)
id_face22h = geompy.addToStudyInFather(Block2h, Face22h, "Face 2")
try:
Block3h = geompy.GetBlockByParts(Handle, [Face11h, Face21h])
except RuntimeError:
try:
Block3h = geompy.GetBlockByParts(Handle, [Face11h, Face22h])
except RuntimeError:
try:
Block3h = geompy.GetBlockByParts(Handle, [Face12h, Face21h])
except RuntimeError:
try:
Block3h = geompy.GetBlockByParts(Handle, [Face12h, Face22h])
except RuntimeError:
print "ERROR: BlocksOp.GetBlockByParts() failed : ", geompy.BlocksOp.GetErrorCode()
else:
id_block3h = geompy.addToStudyInFather(Handle, Block3h, "Block 3 of Handle")
### The whole shape ###
CompALL = geompy.MakeCompound([Glue1234, Block5, Mirror1, Handle, Gear])
Spanner = geompy.MakeGlueFaces(CompALL, 1e-5)
id_glueALL = geompy.addToStudy(Spanner, "The Spanner")
### Check the Spanner ###
isCompOfBlocks6 = geompy.CheckCompoundOfBlocks(Spanner)
if isCompOfBlocks6 == 0:
print "Spanner is not a compound of hexahedral solids"
(NonBlocks, NonQuads) = geompy.GetNonBlocks(Spanner)
if NonBlocks is not None:
geompy.addToStudyInFather(Spanner, NonBlocks, "Group of non-hexahedral solids")
if NonQuads is not None:
geompy.addToStudyInFather(Spanner, NonQuads, "Group of non-quadrangular faces")
else:
print "Spanner is a compound of hexahedral solids"
if isBlocksTest == 1:
print "##################### Test More #####################"
### Get Blocks 4 and 5 from the spanner ###
Face42_sp = geompy.GetFaceByEdges(Spanner, Edge41, Edge42)
id_face42_sp = geompy.addToStudyInFather(Spanner, Face42_sp, "Face 4_2")
Blocks_f4_sp = geompy.GetBlocksByParts(Spanner, [Face42_sp])
isMRot2D = 0
for aBlock in Blocks_f4_sp:
name = geompy.SubShapeName(aBlock, Spanner)
Id_block = geompy.addToStudyInFather(Spanner, aBlock, name)
f42_sp_ind = geompy.LocalOp.GetSubShapeIndex(aBlock, Face42_sp)
Face_5_horiz = geompy.GetFaceByNormale(aBlock, vz)
f_5_horiz_ind = geompy.LocalOp.GetSubShapeIndex(aBlock, Face_5_horiz)
MRot = None
is2Dok = True
try:
MRot = geompy.MakeMultiTransformation2D(aBlock, f42_sp_ind, 0, 3, f_5_horiz_ind, 0, 5)
except:
is2Dok = False
if is2Dok and MRot is not None:
isMRot2D = 1
p_z100 = geompy.MakeVertex(0., 0., 100.)
MRot_tr = geompy.MakeTranslationTwoPoints(MRot, p0, p_z100)
id_MRot_tr = geompy.addToStudy(MRot_tr, "Multi-rotated block 5")
if isMRot2D == 0:
print "2D Multi Transformation failed"
### Get one face of the Gear ###
p_20_0_tr = geompy.MakeTranslationTwoPoints(p_20_0 , p0, p_60_150_0)
p_20_0_r_tr = geompy.MakeTranslationTwoPoints(p_20_0_r, p0, p_60_150_0)
p_40_0_tr = geompy.MakeTranslationTwoPoints(p_40_0 , p0, p_60_150_0)
p_40_0_r_tr = geompy.MakeTranslationTwoPoints(p_40_0_r, p0, p_60_150_0)
Face_g_1 = geompy.GetFaceByPoints(Gear, p_20_0_tr, p_20_0_r_tr, p_40_0_tr, p_40_0_r_tr)
id_face_g_1 = geompy.addToStudyInFather(Gear, Face_g_1, "Face of Gear by four points")
edgesNb = geompy.ShapesOp.NumberOfEdges(Face_g_1)
print "Face of Gear has ", edgesNb, " edges"
Face_g_1_tr = geompy.MakeTranslationTwoPoints(Face_g_1, p0, pth)
id_face_g_1_tr = geompy.addToStudyInFather(Gear, Face_g_1_tr, "Face of Gear by four points, translated")
### equivalent of Block1s, but made as block
Block_new = geompy.MakeHexa2Faces(Face_g_1, Face_g_1_tr)
id_block_new = geompy.addToStudy(Block_new, "Block New")
if isMeshTest == 1 and smesh is not None:
print "##################### Build Mesh #####################"
# ---- add a middle block of spanner handle in study
p_45_0_1 = geompy.MakeVertex(45., 0., 1.)
BlockMh = geompy.GetBlockNearPoint(Spanner, p_45_0_1)
id_blockMh = geompy.addToStudyInFather(Spanner, BlockMh, "Middle Block of Spanner Handle")
# ---- add the top face of the middle block in study
FaceTop = geompy.GetFaceByNormale(BlockMh, vz)
id_facetop = geompy.addToStudyInFather(BlockMh, FaceTop, "Top Face")
# ---- add long edges of the top face in study
FaceTop_edges = geompy.SubShapeAllSortedCentres(FaceTop, geompy.ShapeType["EDGE"])
Edge1 = FaceTop_edges[0]
Edge2 = FaceTop_edges[3]
Id_Edge1 = geompy.addToStudyInFather(FaceTop, Edge1, "Edge 1")
Id_Edge2 = geompy.addToStudyInFather(FaceTop, Edge2, "Edge 2")
print "-------------------------- Algorithm and Hypothesis"
print "---- Init a Mesh with the Spanner"
mesh = smesh.Mesh(Spanner, "Meshed Spanner")
print "-------------------------- add hypothesis to Spanner"
print "-------------------------- NumberOfSegments"
algoReg = mesh.Segment()
listHyp = algoReg.GetCompatibleHypothesis()
for hyp in listHyp:
print hyp
print algoReg.GetName()
print algoReg.GetId()
algoReg.SetName("Regular_1D")
hypNbSeg3 = algoReg.NumberOfSegments(3)
print hypNbSeg3.GetName()
print hypNbSeg3.GetId()
print hypNbSeg3.GetNumberOfSegments()
smesh.SetName(hypNbSeg3, "NumberOfSegments_3")
print "-------------------------- Quadrangle_2D"
algoQuad = mesh.Quadrangle()
listHyp = algoQuad.GetCompatibleHypothesis()
for hyp in listHyp:
print hyp
print algoQuad.GetName()
print algoQuad.GetId()
algoQuad.SetName("Quadrangle_2D")
print "-------------------------- add hypothesis to the Middle Block"
print "-------------------------- LocalLength"
algoRegMb = mesh.Segment(BlockMh)
hypLen1 = algoRegMb.LocalLength(10)
print hypLen1.GetName()
print hypLen1.GetId()
print hypLen1.GetLength()
smesh.SetName(hypLen1, "Local_Length_10")
print "-------------------------- add hypothesis to the long edges of the Top Face of the Middle Block"
algoRegE1 = mesh.Segment(Edge1)
hypPropE1 = algoRegE1.Propagation()
print hypPropE1.GetName()
print hypPropE1.GetId()
smesh.SetName(hypPropE1, "Propagation hypothesis")
smesh.SetName(algoRegE1.GetSubMesh(), "SubMesh Edge 1 of Top Face")
algoRegE2 = mesh.Segment(Edge2)
hypPropE2 = algoRegE2.Propagation()
print hypPropE2.GetName()
print hypPropE2.GetId()
smesh.SetName(hypPropE2, "Propagation hypothesis")
smesh.SetName(algoRegE2.GetSubMesh(), "SubMesh Edge 2 of Top Face")
print "-------------------------- compute the mesh"
mesh.Compute()
print "Information about the Mesh:"
print "Number of nodes : ", mesh.NbNodes()
print "Number of edges : ", mesh.NbEdges()
print "Number of faces : ", mesh.NbFaces()
print "Number of triangles : ", mesh.NbTriangles()
print "Number of quadrangles : ", mesh.NbQuadrangles()
print "Number of volumes : ", mesh.NbVolumes()
print "Number of tetrahedrons: ", mesh.NbTetras()
return Spanner
