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https://git.salome-platform.org/gitpub/modules/geom.git
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120 lines
3.6 KiB
Python
120 lines
3.6 KiB
Python
# Creation of a PipeShellsWithoutPath
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import salome
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salome.salome_init()
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import GEOM
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from salome.geom import geomBuilder
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geompy = geomBuilder.New(salome.myStudy)
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import salome
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gg = salome.ImportComponentGUI("GEOM")
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# Add a section based on quadrangles
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# ----------------------------------
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def section(s, p1, p2=None, p3=None, p4=None):
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if p2==None:
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q = p1
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else:
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q = geompy.MakeQuad4Vertices(p1, p2, p3, p4)
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pass
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s.append(q)
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publish(q, "section")
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return q
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# find distance between two points
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# -------------------------------
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def Dist(p1,p2):
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c1 = geompy.PointCoordinates(p1)
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c2 = geompy.PointCoordinates(p2)
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return math.sqrt( (c2[0]-c1[0])*(c2[0]-c1[0]) +
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(c2[1]-c1[1])*(c2[1]-c1[1]) +
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(c2[2]-c1[2])*(c2[2]-c1[2]) )
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# return middle point
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# -------------------------------
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def MiddleVert(p1,p2):
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c1 = geompy.PointCoordinates(p1)
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c2 = geompy.PointCoordinates(p2)
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return geompy.MakeVertex( (c2[0]+c1[0])/2, (c2[1]+c1[1])/2, (c2[2]+c1[2])/2 )
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# Complex section
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# result - 16 quads from lines
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# pnt - point from path
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# vec - direction from path
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def MakeComplexSect(pnt,vec,rmax,rmin,nb):
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dang = 1.0/nb/2
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cmax = geompy.MakeCircle(pnt,vec,rmax)
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cmin = geompy.MakeCircle(pnt,vec,rmin)
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faces = []
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for i in range(0,2*nb,2):
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p1 = geompy.MakeVertexOnCurve(cmin,dang*i)
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p2 = geompy.MakeVertexOnCurve(cmax,dang*(i+1))
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p3 = geompy.MakeVertexOnCurve(cmin,dang*(i+2))
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f = geompy.MakeQuad4Vertices(pnt,p1,p2,p3)
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faces.append(f)
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pass
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shell = geompy.MakeSewing(faces,1.e-6)
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return shell
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#=======================================================
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# Create simple path and receive points
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# for section creation
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#=======================================================
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WirePath = geompy.MakeSketcher("Sketcher:F 0 0:T 60 0:T 40 0:R 0:C 100 90:",
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[0, 0, 0, 0, 0, 1, 1, 0, 0])
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vs = geompy.SubShapeAll(WirePath, geompy.ShapeType["VERTEX"])
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#=======================================================
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# Create shell sections
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#=======================================================
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shells = []
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subbases = []
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locs = []
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# 1 section
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shell = MakeComplexSect(vs[0], geompy.MakeVectorDXDYDZ(1,0,0), 60, 40, 16)
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shells.append(shell)
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vs1 = geompy.SubShapeAllSortedCentres(shell,geompy.ShapeType["VERTEX"])
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locs.append(vs1[17])
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# 2 section
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shell = MakeComplexSect(vs[1], geompy.MakeVectorDXDYDZ(1,0,0), 80, 30, 16)
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shells.append(shell)
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vs2 = geompy.SubShapeAllSortedCentres(shell,geompy.ShapeType["VERTEX"])
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locs.append(vs2[17])
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# 3 section
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shell = MakeComplexSect(vs[2], geompy.MakeVectorDXDYDZ(1,0,0), 60, 40, 16)
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shells.append(shell)
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vs3 = geompy.SubShapeAllSortedCentres(shell,geompy.ShapeType["VERTEX"])
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locs.append(vs3[17])
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# 4 section
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shell = MakeComplexSect(vs[3], geompy.MakeVectorDXDYDZ(0,1,0), 40, 35, 16)
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shells.append(shell)
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vs4 = geompy.SubShapeAllSortedCentres(shell,geompy.ShapeType["VERTEX"])
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locs.append(vs4[17])
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#===========================================================
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# Create Pipe
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#===========================================================
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Pipe = geompy.MakePipeShellsWithoutPath(shells,locs)
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# add objects in the study
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resc = geompy.MakeCompound(shells)
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id_sec = geompy.addToStudy(resc,"sections")
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resl = geompy.MakeCompound(locs)
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id_loc = geompy.addToStudy(resl,"locations")
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id_pipe = geompy.addToStudy(Pipe, "Pipe")
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# display the sections, locations and pipe
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gg.createAndDisplayGO(id_sec)
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gg.createAndDisplayGO(id_loc)
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gg.createAndDisplayGO(id_pipe)
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gg.setDisplayMode(id_pipe,1)
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