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1391 lines
32 KiB
HTML
Executable File
1391 lines
32 KiB
HTML
Executable File
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<title>Defining hypotheses TUI</title>
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<h1>Defining Hypotheses and Algorithms</h1>
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<h3>Defining 1D Hypotheses</h3>
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<p class="whs1"><a name=bookmark>1D Arithmetic</a></p>
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<p> </p>
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<p class="whs2">from geompy import
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*</p>
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<p class="whs2">import smesh</p>
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<p> </p>
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<p># create vertices</p>
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<p class="whs2">Point111 = MakeVertex(
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0, 0, 0)</p>
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<p class="whs2">Point211 = MakeVertex(10,
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0, 0)</p>
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<p class="whs2">Point121 = MakeVertex(
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0, 10, 0)</p>
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<p class="whs2">Point221 = MakeVertex(10,
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10, 0)</p>
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<p class="whs2">Point112 = MakeVertex(
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0, 0, 10)</p>
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<p class="whs2">Point212 = MakeVertex(10,
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0, 10)</p>
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<p class="whs2">Point122 = MakeVertex(
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0, 10, 10)</p>
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<p class="whs2">Point222 = MakeVertex(10,
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10, 10)</p>
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<p> </p>
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<p># create edges</p>
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<p class="whs2">EdgeX111 = MakeEdge(Point111,
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Point211)</p>
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<p class="whs2">EdgeX121 = MakeEdge(Point121,
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Point221)</p>
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<p class="whs2">EdgeX112 = MakeEdge(Point112,
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Point212)</p>
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<p class="whs2">EdgeX122 = MakeEdge(Point122,
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Point222)</p>
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<p class="whs2">EdgeY11 = MakeEdge(Point111,
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Point121)</p>
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<p class="whs2">EdgeY21 = MakeEdge(Point211,
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Point221)</p>
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<p class="whs2">EdgeY12 = MakeEdge(Point112,
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Point122)</p>
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<p class="whs2">EdgeY22 = MakeEdge(Point212,
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Point222)</p>
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<p class="whs2">EdgeZ111 = MakeEdge(Point111,
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Point112)</p>
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<p class="whs2">EdgeZ211 = MakeEdge(Point211,
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Point212)</p>
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<p class="whs2">EdgeZ121 = MakeEdge(Point121,
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Point122)</p>
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<p class="whs2">EdgeZ221 = MakeEdge(Point221,
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Point222)</p>
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<p> </p>
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<p># create faces</p>
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<p class="whs2">FaceX11 = MakeQuad(EdgeY11,
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EdgeZ111, EdgeY12, EdgeZ121)</p>
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<p class="whs2">FaceX21 = MakeQuad(EdgeY21,
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EdgeZ211, EdgeY22, EdgeZ221)</p>
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<p class="whs2">FaceY111 = MakeQuad(EdgeX111,
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EdgeZ111, EdgeX112, EdgeZ211)</p>
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<p class="whs2">FaceY121 = MakeQuad(EdgeX121,
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EdgeZ121, EdgeX122, EdgeZ221)</p>
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<p class="whs2">FaceZ11 = MakeQuad(EdgeX111,
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EdgeY11, EdgeX121, EdgeY21)</p>
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<p class="whs2">FaceZ12 = MakeQuad(EdgeX112,
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EdgeY12, EdgeX122, EdgeY22)</p>
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<p> </p>
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<p># create a solid</p>
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<p class="whs2">Block = MakeHexa(FaceX11,
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FaceX21, FaceY111, FaceY121, FaceZ11, FaceZ12)</p>
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<p> </p>
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<p># create a compound</p>
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<p class="whs2">box = MakeCompound([Block])</p>
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<p> </p>
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<p># add in the study</p>
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<p class="whs2">box_id = addToStudy(box,
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"Box compound")</p>
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<p> </p>
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<p># create a hexahedral mesh on the box</p>
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<p class="whs2">hexa = smesh.Mesh(box,
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"Box compound : hexahedrical mesh")</p>
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<p class="whs2">algo = hexa.Segment()</p>
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<p> </p>
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<p># define "NumberOfSegments" hypothesis to cut an edge in a
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fixed number of segments</p>
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<p class="whs2">algo.NumberOfSegments(4)</p>
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<p> </p>
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<p># create a quadrangle 2D algorithm for faces</p>
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<p class="whs2">hexa.Quadrangle()</p>
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<p> </p>
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<p># create a hexahedron 3D algorithm for solids</p>
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<p class="whs2">hexa.Hexahedron()</p>
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<p> </p>
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<p># create a local hypothesis</p>
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<p class="whs2">algo = hexa.Segment(EdgeX111)</p>
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<p> </p>
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<p># define "Arithmetic1D" hypothesis to cut an edge in several
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segments with arithmetic length increasing</p>
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<p class="whs2">algo.Arithmetic1D(1,
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4)</p>
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<p> </p>
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<p># define "Propagation" hypothesis that propagates all other
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hypothesis on all edges on the opposite side in case of quadrangular faces</p>
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<p class="whs2">algo.Propagation()</p>
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<p> </p>
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<p># compute the mesh</p>
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<p class="whs2">hexa.Compute() </p>
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<p class="whs2"> </p>
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<h4><a name=bookmark9>Deflection 1D and Number of Segments</a></h4>
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<p class="whs2"> </p>
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<p class="whs2">import smesh</p>
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<p class="whs2">import geompy</p>
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<p class="whs2">import salome</p>
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<p class="whs2">gg = salome.ImportComponentGUI("GEOM")</p>
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<p class="whs2"> </p>
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<p class="whs3"># create vertices</p>
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<p class="whs2">px =
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geompy.MakeVertex(100., 0. ,
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0. )</p>
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<p class="whs2">py =
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geompy.MakeVertex(0. ,
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100., 0. )</p>
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<p class="whs2">pz =
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geompy.MakeVertex(0. ,
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0. , 100.)</p>
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<p class="whs2"> </p>
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<p class="whs3"># create a vector from
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two points</p>
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<p class="whs2">vxy = geompy.MakeVector(px,
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py)</p>
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<p class="whs2"> </p>
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<p class="whs3"># create an arc from
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three points</p>
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<p class="whs2">arc = geompy.MakeArc(py,
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pz, px)</p>
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<p class="whs2"> </p>
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<p class="whs3"># create a wire</p>
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<p class="whs2">wire = geompy.MakeWire([vxy,
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arc])</p>
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<p class="whs2">isPlanarFace = 1</p>
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<p class="whs2"> </p>
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<p class="whs3"># create a face from
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the wire</p>
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<p class="whs2">face1 = geompy.MakeFace(wire,
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isPlanarFace)</p>
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<p class="whs2"> </p>
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<p class="whs3"><span style="font-family: 'Times New Roman', serif;">#
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get edges from the face</span></p>
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<p class="whs2">vxy,arc = geompy.SubShapeAll(face1,geompy.ShapeType["EDGE"])</p>
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<p class="whs3"> </p>
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<p class="whs3"># add objects in the
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study</p>
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<p class="whs2">id_face1 = geompy.addToStudy(face1,"Face1")</p>
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<p class="whs2">id_arc = geompy.addToStudyInFather(face1,arc,"Arc
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Edge")</p>
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<p class="whs2"> </p>
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<p class="whs3"># display faces</p>
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<p class="whs2">gg.createAndDisplayGO(id_face1)</p>
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<p class="whs2">gg.setDisplayMode(id_face1,1)</p>
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<p class="whs2">gg.setTransparency(id_face1,0.2)</p>
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<p class="whs2"> </p>
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<p class="whs3"># create hexahedral mesh</p>
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<p class="whs2">hexa = smesh.Mesh(face1,
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"Face compound : hexahedrical mesh")</p>
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<p class="whs2">algo = hexa.Triangle()</p>
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<p class="whs2"> </p>
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<p class="whs3"># define "MaxElementArea"
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hypothesis</p>
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<p class="whs2">algo.MaxElementArea(30)</p>
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<p class="whs2"> </p>
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<p class="whs3"># create a local hypothesis
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on the wire</p>
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<p class="whs2">algo = hexa.Segment(wire)</p>
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<p class="whs2"> </p>
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<p class="whs3"># define "NumberOfSegments"
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hypothesis to cut a straight edge in a fixed number of segments</p>
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<p class="whs2">algo.NumberOfSegments(6)</p>
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<p class="whs2"> </p>
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<p class="whs3"># define a local "Deflection1D"
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hypothesis on the arc</p>
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<p class="whs2">algo = hexa.Segment(arc)</p>
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<p class="whs2">algo.Deflection1D(1)</p>
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<p class="whs2"> </p>
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<p class="whs2"> </p>
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<p class="whs3"># compute the mesh</p>
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<p class="whs2">hexa.Compute() </p>
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<p> </p>
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<h4><a name=bookmark2>Start and End Length</a></h4>
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<p class="whs2">from geompy import
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*</p>
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<p class="whs2">import smesh</p>
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<p> </p>
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<p># create vertices</p>
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<p class="whs2">Point111 = MakeVertex(
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0, 0, 0)</p>
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<p class="whs2">Point211 = MakeVertex(10,
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0, 0)</p>
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<p class="whs2">Point121 = MakeVertex(
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0, 10, 0)</p>
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<p class="whs2">Point221 = MakeVertex(10,
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10, 0)</p>
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<p class="whs2">Point112 = MakeVertex(
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0, 0, 10)</p>
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<p class="whs2">Point212 = MakeVertex(10,
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0, 10)</p>
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<p class="whs2">Point122 = MakeVertex(
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0, 10, 10)</p>
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<p class="whs2">Point222 = MakeVertex(10,
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10, 10)</p>
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<p> </p>
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<p># create edges</p>
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<p class="whs2">EdgeX111 = MakeEdge(Point111,
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Point211)</p>
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<p class="whs2">EdgeX121 = MakeEdge(Point121,
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Point221)</p>
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<p class="whs2">EdgeX112 = MakeEdge(Point112,
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Point212)</p>
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<p class="whs2">EdgeX122 = MakeEdge(Point122,
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Point222)</p>
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<p class="whs2">EdgeY11 = MakeEdge(Point111,
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Point121)</p>
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<p class="whs2">EdgeY21 = MakeEdge(Point211,
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Point221)</p>
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<p class="whs2">EdgeY12 = MakeEdge(Point112,
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Point122)</p>
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<p class="whs2">EdgeY22 = MakeEdge(Point212,
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Point222)</p>
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<p class="whs2">EdgeZ111 = MakeEdge(Point111,
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Point112)</p>
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<p class="whs2">EdgeZ211 = MakeEdge(Point211,
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Point212)</p>
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<p class="whs2">EdgeZ121 = MakeEdge(Point121,
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Point122)</p>
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<p class="whs2">EdgeZ221 = MakeEdge(Point221,
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Point222)</p>
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<p> </p>
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<p># create faces</p>
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<p class="whs2">FaceX11 = MakeQuad(EdgeY11,
|
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EdgeZ111, EdgeY12, EdgeZ121)</p>
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<p class="whs2">FaceX21 = MakeQuad(EdgeY21,
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EdgeZ211, EdgeY22, EdgeZ221)</p>
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<p class="whs2">FaceY111 = MakeQuad(EdgeX111,
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EdgeZ111, EdgeX112, EdgeZ211)</p>
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<p class="whs2">FaceY121 = MakeQuad(EdgeX121,
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EdgeZ121, EdgeX122, EdgeZ221)</p>
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<p class="whs2">FaceZ11 = MakeQuad(EdgeX111,
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EdgeY11, EdgeX121, EdgeY21)</p>
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<p class="whs2">FaceZ12 = MakeQuad(EdgeX112,
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EdgeY12, EdgeX122, EdgeY22)</p>
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<p> </p>
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|
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<p># create a solid</p>
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<p class="whs2">Block = MakeHexa(FaceX11,
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FaceX21, FaceY111, FaceY121, FaceZ11, FaceZ12)</p>
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<p> </p>
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|
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<p># create a compound</p>
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<p class="whs2">box = MakeCompound([Block])</p>
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<p> </p>
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|
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<p># add in the study</p>
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<p class="whs2">box_id = addToStudy(box,
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"Box compound")</p>
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|
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<p> </p>
|
|
|
|
<p># create a hexahedral mesh on the box</p>
|
|
|
|
<p class="whs2">hexa = smesh.Mesh(box,
|
|
"Box compound : hexahedrical mesh")</p>
|
|
|
|
<p class="whs2">algo = hexa.Segment()</p>
|
|
|
|
<p> </p>
|
|
|
|
<p># define "NumberOfSegments" hypothesis to cut an edge in a
|
|
fixed number of segments</p>
|
|
|
|
<p class="whs2">algo.NumberOfSegments(4)</p>
|
|
|
|
<p> </p>
|
|
|
|
<p># create a quadrangle 2D algorithm for faces</p>
|
|
|
|
<p class="whs2">hexa.Quadrangle()</p>
|
|
|
|
<p> </p>
|
|
|
|
<p># create a hexahedron 3D algorithm for solids</p>
|
|
|
|
<p class="whs2">hexa.Hexahedron()</p>
|
|
|
|
<p> </p>
|
|
|
|
<p># create a local hypothesis</p>
|
|
|
|
<p class="whs2">algo = hexa.Segment(EdgeX111)</p>
|
|
|
|
<p> </p>
|
|
|
|
<p># define "StartEndLength" hypothesis to cut an edge in several
|
|
segments with increasing geometric length </p>
|
|
|
|
<p class="whs2">algo.StartEndLength(1,
|
|
6)</p>
|
|
|
|
<p> </p>
|
|
|
|
<p># define "Propagation" hypothesis that propagates all other
|
|
hypothesis on all edges on the opposite side in case of quadrangular faces</p>
|
|
|
|
<p class="whs2">algo.Propagation()</p>
|
|
|
|
<p> </p>
|
|
|
|
<p># compute the mesh</p>
|
|
|
|
<p class="whs2">hexa.Compute() </p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<h4><a name=bookmark3>Average Length</a></h4>
|
|
|
|
<p class="whs2">from geompy import
|
|
*</p>
|
|
|
|
<p class="whs2">import smesh</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create vertices</p>
|
|
|
|
<p class="whs2">Point111 = MakeVertex(
|
|
0, 0, 0)</p>
|
|
|
|
<p class="whs2">Point211 = MakeVertex(10,
|
|
0, 0)</p>
|
|
|
|
<p class="whs2">Point121 = MakeVertex(
|
|
0, 10, 0)</p>
|
|
|
|
<p class="whs2">Point221 = MakeVertex(10,
|
|
10, 0)</p>
|
|
|
|
<p class="whs2">Point112 = MakeVertex(
|
|
0, 0, 10)</p>
|
|
|
|
<p class="whs2">Point212 = MakeVertex(10,
|
|
0, 10)</p>
|
|
|
|
<p class="whs2">Point122 = MakeVertex(
|
|
0, 10, 10)</p>
|
|
|
|
<p class="whs2">Point222 = MakeVertex(10,
|
|
10, 10)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create edges</p>
|
|
|
|
<p class="whs2">EdgeX111 = MakeEdge(Point111,
|
|
Point211)</p>
|
|
|
|
<p class="whs2">EdgeX121 = MakeEdge(Point121,
|
|
Point221)</p>
|
|
|
|
<p class="whs2">EdgeX112 = MakeEdge(Point112,
|
|
Point212)</p>
|
|
|
|
<p class="whs2">EdgeX122 = MakeEdge(Point122,
|
|
Point222)</p>
|
|
|
|
<p class="whs2">EdgeY11 = MakeEdge(Point111,
|
|
Point121)</p>
|
|
|
|
<p class="whs2">EdgeY21 = MakeEdge(Point211,
|
|
Point221)</p>
|
|
|
|
<p class="whs2">EdgeY12 = MakeEdge(Point112,
|
|
Point122)</p>
|
|
|
|
<p class="whs2">EdgeY22 = MakeEdge(Point212,
|
|
Point222)</p>
|
|
|
|
<p class="whs2">EdgeZ111 = MakeEdge(Point111,
|
|
Point112)</p>
|
|
|
|
<p class="whs2">EdgeZ211 = MakeEdge(Point211,
|
|
Point212)</p>
|
|
|
|
<p class="whs2">EdgeZ121 = MakeEdge(Point121,
|
|
Point122)</p>
|
|
|
|
<p class="whs2">EdgeZ221 = MakeEdge(Point221,
|
|
Point222)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create faces</p>
|
|
|
|
<p class="whs2">FaceX11 = MakeQuad(EdgeY11,
|
|
EdgeZ111, EdgeY12, EdgeZ121)</p>
|
|
|
|
<p class="whs2">FaceX21 = MakeQuad(EdgeY21,
|
|
EdgeZ211, EdgeY22, EdgeZ221)</p>
|
|
|
|
<p class="whs2">FaceY111 = MakeQuad(EdgeX111,
|
|
EdgeZ111, EdgeX112, EdgeZ211)</p>
|
|
|
|
<p class="whs2">FaceY121 = MakeQuad(EdgeX121,
|
|
EdgeZ121, EdgeX122, EdgeZ221)</p>
|
|
|
|
<p class="whs2">FaceZ11 = MakeQuad(EdgeX111,
|
|
EdgeY11, EdgeX121, EdgeY21)</p>
|
|
|
|
<p class="whs2">FaceZ12 = MakeQuad(EdgeX112,
|
|
EdgeY12, EdgeX122, EdgeY22)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a solid</p>
|
|
|
|
<p class="whs2">Block = MakeHexa(FaceX11,
|
|
FaceX21, FaceY111, FaceY121, FaceZ11, FaceZ12)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a compound</p>
|
|
|
|
<p class="whs2">box = MakeCompound([Block])</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># add in the study</p>
|
|
|
|
<p class="whs2">box_id = addToStudy(box,
|
|
"Box compound")</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a hexahedral
|
|
mesh on the box</p>
|
|
|
|
<p class="whs2">hexa = smesh.Mesh(box,
|
|
"Box compound : hexahedrical mesh")</p>
|
|
|
|
<p class="whs2">algo = hexa.Segment()</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># define "NumberOfSegments"
|
|
hypothesis to cut an edge in a fixed number of segments</p>
|
|
|
|
<p class="whs2">algo.NumberOfSegments(4)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a quadrangle
|
|
2D algorithm for faces</p>
|
|
|
|
<p class="whs2">hexa.Quadrangle()</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a hexahedron
|
|
3D algorithm for solids</p>
|
|
|
|
<p class="whs2">hexa.Hexahedron()</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a local hypothesis</p>
|
|
|
|
<p class="whs2">algo = hexa.Segment(EdgeX111)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># define "LocalLength"
|
|
hypothesis to cut an edge in several segments with the same length</p>
|
|
|
|
<p class="whs2">algo.LocalLength(2)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># define "Propagation"
|
|
hypothesis that propagates all other hypothesis on all edges on<span style="font-family: 'Times New Roman', serif;">
|
|
the opposite side in case of quadrangular faces</span></p>
|
|
|
|
<p class="whs2">algo.Propagation()</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># compute the mesh</p>
|
|
|
|
<p class="whs2">hexa.Compute() </p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<h3>Defining 2D and 3D hypotheses</h3>
|
|
|
|
<h4><a name=bookmark4>Maximum Element Area</a></h4>
|
|
|
|
<p class="whs4"><span style="font-family: 'Lucida Console', monospace;">import
|
|
smesh</span></p>
|
|
|
|
<p class="whs4">import geompy</p>
|
|
|
|
<p class="whs4">import salome</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># create a face</p>
|
|
|
|
<p class="whs4">px =
|
|
geompy.MakeVertex(100., 0. ,
|
|
0. )</p>
|
|
|
|
<p class="whs4">py =
|
|
geompy.MakeVertex(0. ,
|
|
100., 0. )</p>
|
|
|
|
<p class="whs4">pz =
|
|
geompy.MakeVertex(0. ,
|
|
0. , 100.)</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs4">vxy = geompy.MakeVector(px,
|
|
py)</p>
|
|
|
|
<p class="whs4">arc = geompy.MakeArc(py,
|
|
pz, px)</p>
|
|
|
|
<p class="whs4">wire = geompy.MakeWire([vxy,
|
|
arc])</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs4">isPlanarFace = 1</p>
|
|
|
|
<p class="whs4">face = geompy.MakeFace(wire,
|
|
isPlanarFace)</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># add the face in the
|
|
study</p>
|
|
|
|
<p class="whs4">id_face = geompy.addToStudy(face,
|
|
"Face to be meshed")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># create a mesh</p>
|
|
|
|
<p class="whs4">tria_mesh = smesh.Mesh(face,
|
|
"Face : triangulation")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># define 1D meshing:</p>
|
|
|
|
<p class="whs4">algo = tria_mesh.Segment()</p>
|
|
|
|
<p class="whs4">algo.NumberOfSegments(20)</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># define 2D meshing:</p>
|
|
|
|
<p class="whs5"> </p>
|
|
|
|
<p class="whs5"># assign triangulation
|
|
algorithm</p>
|
|
|
|
<p class="whs4">algo = tria_mesh.Triangle()</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># apply "Max Element
|
|
Area" hypothesis to each triangle</p>
|
|
|
|
<p class="whs4">algo.MaxElementArea(100)</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># compute the mesh</p>
|
|
|
|
<p class="whs4">tria_mesh.Compute()
|
|
</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<h4><a name=bookmark5>Maximum Element Volume</a></h4>
|
|
|
|
<p>Attention! This script was written using old approach, based on direct usage of SMESH idl interface. To be updated for version 3.2.1 to use <b>smesh</b> package.
|
|
<br>
|
|
|
|
<p class="whs4"><span style="font-family: 'Lucida Console', monospace;">import
|
|
salome</span></p>
|
|
|
|
<p class="whs4">import geompy</p>
|
|
|
|
<p class="whs4">import StdMeshers</p>
|
|
|
|
<p class="whs4">import NETGENPlugin</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs4">smesh = salome.lcc.FindOrLoadComponent("FactoryServer",
|
|
"SMESH")</p>
|
|
|
|
<p class="whs4">smeshgui = salome.ImportComponentGUI("SMESH")</p>
|
|
|
|
<p class="whs4">smeshgui.Init(salome.myStudyId);</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># create a box</p>
|
|
|
|
<p class="whs4">box = geompy.MakeCylinderRH(30,
|
|
50) #MakeBox(0., 0., 0., </p>
|
|
|
|
<p class="whs4">100., 200., 300.)</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># add the box in the
|
|
study</p>
|
|
|
|
<p class="whs4">idbox = geompy.addToStudy(box,
|
|
"box")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># create a set of hypotheses</p>
|
|
|
|
<p class="whs5"> </p>
|
|
|
|
<p class="whs5"># Number of Segments</p>
|
|
|
|
<p class="whs4">numberOfSegments
|
|
= 7</p>
|
|
|
|
<p class="whs4">hypNbSeg = smesh.CreateHypothesis("NumberOfSegments",
|
|
"libStdMeshersEngine.so")</p>
|
|
|
|
<p class="whs4">hypNbSeg.SetNumberOfSegments(numberOfSegments)</p>
|
|
|
|
<p class="whs4">print hypNbSeg.GetName()</p>
|
|
|
|
<p class="whs4">print hypNbSeg.GetNumberOfSegments()</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(hypNbSeg),
|
|
"NumberOfSegments_7")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># Max Element Area</p>
|
|
|
|
<p class="whs4">maxElementArea =
|
|
800</p>
|
|
|
|
<p class="whs4">hypArea = smesh.CreateHypothesis("MaxElementArea",
|
|
"libStdMeshersEngine.so")</p>
|
|
|
|
<p class="whs4">hypArea.SetMaxElementArea(maxElementArea)</p>
|
|
|
|
<p class="whs4">print hypArea.GetName()</p>
|
|
|
|
<p class="whs4">print hypArea.GetMaxElementArea()</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(hypArea),
|
|
"MaxElementArea_800")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># Max Element Volume</p>
|
|
|
|
<p class="whs4">maxElementVolume
|
|
= 900</p>
|
|
|
|
<p class="whs4">hypVolume = smesh.CreateHypothesis("MaxElementVolume",
|
|
"libStdMeshersEngine.so")</p>
|
|
|
|
<p class="whs4">hypVolume.SetMaxElementVolume(maxElementVolume)</p>
|
|
|
|
<p class="whs4">print hypVolume.GetName()</p>
|
|
|
|
<p class="whs4">print hypVolume.GetMaxElementVolume()</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(hypVolume),
|
|
"MaxElementVolume_900")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># create a set of algorithms</p>
|
|
|
|
<p class="whs5"> </p>
|
|
|
|
<p class="whs5"># Regular_1D</p>
|
|
|
|
<p class="whs4">regular1D = smesh.CreateHypothesis("Regular_1D",
|
|
"libStdMeshersEngine.so")</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(regular1D),
|
|
"Wire Discretisation")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># MEFISTO_2D</p>
|
|
|
|
<p class="whs4">mefisto2D = smesh.CreateHypothesis("MEFISTO_2D",
|
|
"libStdMeshersEngine.so")</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(mefisto2D),
|
|
"MEFISTO_2D")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># NETGEN_3D (Tetrahedron
|
|
meshing algorithm)</p>
|
|
|
|
<p class="whs4">tetra3D = smesh.CreateHypothesis("NETGEN_3D",
|
|
"libNETGENEngine.so")</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(tetra3D),
|
|
"NETGEN_3D")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># initialize a mesh
|
|
with the box</p>
|
|
|
|
<p class="whs4">mesh = smesh.CreateMesh(box)</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(mesh),
|
|
"MeshBox")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># add hypotheses and
|
|
algorithms to the box</p>
|
|
|
|
<p class="whs4">mesh.AddHypothesis(box,hypNbSeg)</p>
|
|
|
|
<p class="whs4">mesh.AddHypothesis(box,hypArea)</p>
|
|
|
|
<p class="whs4">mesh.AddHypothesis(box,hypVolume)</p>
|
|
|
|
<p class="whs4">mesh.AddHypothesis(box,regular1D)</p>
|
|
|
|
<p class="whs4">mesh.AddHypothesis(box,mefisto2D)</p>
|
|
|
|
<p class="whs4">mesh.AddHypothesis(box,tetra3D)</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs5"># compute the mesh</p>
|
|
|
|
<p class="whs4">ret = smesh.Compute(mesh,box)</p>
|
|
|
|
<p class="whs4">if ret == 0:</p>
|
|
|
|
<p class="whs4"> print
|
|
"probleme when computing the mesh"</p>
|
|
|
|
<p class="whs4">else:</p>
|
|
|
|
<p class="whs4"> print
|
|
"Computation succeded"</p>
|
|
|
|
<p class="whs4">salome.sg.updateObjBrowser(1)
|
|
</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<h4><a name=bookmark6>Length from Edges</a></h4>
|
|
|
|
<p class="whs2"><span style="font-family: 'Lucida Console', monospace;">import
|
|
salome</span></p>
|
|
|
|
<p class="whs2">import geompy</p>
|
|
|
|
<p class="whs2">import smesh</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create sketchers</p>
|
|
|
|
<p class="whs2">sketcher1 = geompy.MakeSketcher("Sketcher:F
|
|
0 0:TT 70 0:TT 70 70:TT 0 70:WW")</p>
|
|
|
|
<p class="whs2">sketcher2 = geompy.MakeSketcher("Sketcher:F
|
|
20 20:TT 50 20:TT 50 50:TT 20 50:WW")</p>
|
|
|
|
<p class="whs2">isPlanarFace = 1</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a face from
|
|
two wires</p>
|
|
|
|
<p class="whs2">face1 = geompy.MakeFaces([sketcher1,
|
|
sketcher2],isPlanarFace)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># add object in the study</p>
|
|
|
|
<p class="whs2">id_face1 = geompy.addToStudy(face1,"Face1")</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a mesh</p>
|
|
|
|
<p class="whs2">tria = smesh.Mesh(face1,
|
|
"Face : triangle 2D mesh")</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># Define 1D meshing</p>
|
|
|
|
<p class="whs2">algo = tria.Segment()</p>
|
|
|
|
<p class="whs2">algo.NumberOfSegments(2)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create and assign the
|
|
algorithm for 2D meshing with triangles</p>
|
|
|
|
<p class="whs2">algo = tria.Triangle()</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create and assign "LengthFromEdges"
|
|
hypothesis to build triangles </p>
|
|
|
|
<p class="whs3"># based on the length
|
|
of the edges taken from the wire</p>
|
|
|
|
<p class="whs2">algo.LengthFromEdges()</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># compute the mesh</p>
|
|
|
|
<p class="whs2">tria.Compute() </p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<h3>Defining Additional Hypotheses</h3>
|
|
|
|
<h4><a name=bookmark7>Propagation</a></h4>
|
|
|
|
<p class="whs2"><span style="font-family: 'Lucida Console', monospace;">from
|
|
geompy import *</span></p>
|
|
|
|
<p class="whs2">import smesh</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create vertices</p>
|
|
|
|
<p class="whs2">Point111 = MakeVertex(
|
|
0, 0, 0)</p>
|
|
|
|
<p class="whs2">Point211 = MakeVertex(10,
|
|
0, 0)</p>
|
|
|
|
<p class="whs2">Point121 = MakeVertex(
|
|
0, 10, 0)</p>
|
|
|
|
<p class="whs2">Point221 = MakeVertex(10,
|
|
10, 0)</p>
|
|
|
|
<p class="whs2">Point112 = MakeVertex(
|
|
0, 0, 10)</p>
|
|
|
|
<p class="whs2">Point212 = MakeVertex(10,
|
|
0, 10)</p>
|
|
|
|
<p class="whs2">Point122 = MakeVertex(
|
|
0, 10, 10)</p>
|
|
|
|
<p class="whs2">Point222 = MakeVertex(10,
|
|
10, 10)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create edges</p>
|
|
|
|
<p class="whs2">EdgeX111 = MakeEdge(Point111,
|
|
Point211)</p>
|
|
|
|
<p class="whs2">EdgeX121 = MakeEdge(Point121,
|
|
Point221)</p>
|
|
|
|
<p class="whs2">EdgeX112 = MakeEdge(Point112,
|
|
Point212)</p>
|
|
|
|
<p class="whs2">EdgeX122 = MakeEdge(Point122,
|
|
Point222)</p>
|
|
|
|
<p class="whs2">EdgeY11 = MakeEdge(Point111,
|
|
Point121)</p>
|
|
|
|
<p class="whs2">EdgeY21 = MakeEdge(Point211,
|
|
Point221)</p>
|
|
|
|
<p class="whs2">EdgeY12 = MakeEdge(Point112,
|
|
Point122)</p>
|
|
|
|
<p class="whs2">EdgeY22 = MakeEdge(Point212,
|
|
Point222)</p>
|
|
|
|
<p class="whs2">EdgeZ111 = MakeEdge(Point111,
|
|
Point112)</p>
|
|
|
|
<p class="whs2">EdgeZ211 = MakeEdge(Point211,
|
|
Point212)</p>
|
|
|
|
<p class="whs2">EdgeZ121 = MakeEdge(Point121,
|
|
Point122)</p>
|
|
|
|
<p class="whs2">EdgeZ221 = MakeEdge(Point221,
|
|
Point222)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create faces</p>
|
|
|
|
<p class="whs2">FaceX11 = MakeQuad(EdgeY11,
|
|
EdgeZ111, EdgeY12, EdgeZ121)</p>
|
|
|
|
<p class="whs2">FaceX21 = MakeQuad(EdgeY21,
|
|
EdgeZ211, EdgeY22, EdgeZ221)</p>
|
|
|
|
<p class="whs2">FaceY111 = MakeQuad(EdgeX111,
|
|
EdgeZ111, EdgeX112, EdgeZ211)</p>
|
|
|
|
<p class="whs2">FaceY121 = MakeQuad(EdgeX121,
|
|
EdgeZ121, EdgeX122, EdgeZ221)</p>
|
|
|
|
<p class="whs2">FaceZ11 = MakeQuad(EdgeX111,
|
|
EdgeY11, EdgeX121, EdgeY21)</p>
|
|
|
|
<p class="whs2">FaceZ12 = MakeQuad(EdgeX112,
|
|
EdgeY12, EdgeX122, EdgeY22)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a solid</p>
|
|
|
|
<p class="whs2">box = MakeHexa(FaceX11,
|
|
FaceX21, FaceY111, FaceY121, FaceZ11, FaceZ12)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># add in the study</p>
|
|
|
|
<p class="whs2">box_id = addToStudy(box,
|
|
"Box")</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a hexahedral
|
|
mesh on the box</p>
|
|
|
|
<p class="whs2">hexa = smesh.Mesh(box,
|
|
"Box : hexahedrical mesh")</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create an 1D algorithm
|
|
for edges</p>
|
|
|
|
<p class="whs2">algo = hexa.Segment()</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># define "NumberOfSegments"
|
|
hypothesis to cut an edge in a fixed number of segments</p>
|
|
|
|
<p class="whs2">algo.NumberOfSegments(4)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a quadrangle
|
|
2D algorithm for faces</p>
|
|
|
|
<p class="whs2">hexa.Quadrangle()</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a hexahedron
|
|
3D algorithm for solids</p>
|
|
|
|
<p class="whs2">hexa.Hexahedron()</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># create a local hypothesis</p>
|
|
|
|
<p class="whs2">algo = hexa.Segment(EdgeX111)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># define "Arithmetic1D"
|
|
hypothesis to cut an edge<span style="font-family: 'Times New Roman', serif;">
|
|
in several segments with increasing length</span></p>
|
|
|
|
<p class="whs2">algo.Arithmetic1D(1,
|
|
4)</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># define "Propagation"
|
|
hypothesis that propagates all other 1D hypotheses</p>
|
|
|
|
<p class="whs3"># from all edges on the
|
|
opposite side of a face in case of quadrangular faces</p>
|
|
|
|
<p class="whs2">algo.Propagation()</p>
|
|
|
|
<p class="whs2"> </p>
|
|
|
|
<p class="whs3"># compute the mesh</p>
|
|
|
|
<p class="whs2">hexa.Compute() </p>
|
|
|
|
<h3><a name=bookmark8>Defining Meshing Algorithms</a></h3>
|
|
|
|
<p>Attention! This script was written using old approach, based on direct usage of SMESH idl interface. To be updated for version 3.2.1 to use <b>smesh</b> package.
|
|
<br>
|
|
|
|
<p class="whs4"><span style="font-family: 'Lucida Console', monospace;">import
|
|
salome</span></p>
|
|
|
|
<p class="whs4">import StdMeshers</p>
|
|
|
|
<p class="whs4">import NETGENPlugin</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs4">smesh = salome.lcc.FindOrLoadComponent("FactoryServer",
|
|
"SMESH")</p>
|
|
|
|
<p class="whs4">smeshgui = salome.ImportComponentGUI("SMESH")</p>
|
|
|
|
<p class="whs4">smeshgui.Init(salome.myStudyId);</p>
|
|
|
|
<p class="whs6"> </p>
|
|
|
|
<p class="whs6"># create algorithms</p>
|
|
|
|
<p class="whs4">print "--------------------------
|
|
create Algorithms"</p>
|
|
|
|
<p class="whs4">print "--------------------------
|
|
Regular_1D (Wire discretisation)"</p>
|
|
|
|
<p class="whs4">regular1D = smesh.CreateHypothesis("Regular_1D",
|
|
"libStdMeshersEngine.so")</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(regular1D),
|
|
"Wire Discretisation")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs4">print "--------------------------
|
|
MEFISTO_2D (Triangle meshing algorithm)"</p>
|
|
|
|
<p class="whs4">mefisto2D = smesh.CreateHypothesis("MEFISTO_2D",
|
|
"libStdMeshersEngine.so")</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(mefisto2D),
|
|
"MEFISTO_2D")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs4">print "--------------------------
|
|
Quadrangle_2D (Quadrangle meshing algorithm)"</p>
|
|
|
|
<p class="whs4">quad2D = smesh.CreateHypothesis(
|
|
"Quadrangle_2D", "libStdMeshersEngine.so" )</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(quad2D),
|
|
"Quadrangle_2D")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs4">print "--------------------------
|
|
Hexa_3D (Hexahedron meshing algorithm)"</p>
|
|
|
|
<p class="whs4">hexa3D = smesh.CreateHypothesis("Hexa_3D",
|
|
"libStdMeshersEngine.so")</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(hexa3D),
|
|
"HEXA_3D")</p>
|
|
|
|
<p class="whs4"> </p>
|
|
|
|
<p class="whs4">print "--------------------------
|
|
NETGEN_3D (Tetrahedron meshing algorithm)"</p>
|
|
|
|
<p class="whs4">netgen3D = smesh.CreateHypothesis("NETGEN_3D",
|
|
"libNETGENEngine.so")</p>
|
|
|
|
<p class="whs4">smeshgui.SetName(salome.ObjectToID(netgen3D),
|
|
"NETGEN_3D")</p>
|
|
|
|
<p class="whs4">salome.sg.updateObjBrowser(1)</p>
|
|
|
|
<p class="whs6"> </p>
|
|
|
|
<script type="text/javascript" language="javascript1.2">
|
|
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|
|
if (window.writeIntopicBar)
|
|
writeIntopicBar(0);
|
|
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|
|
</script>
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