mirror of
https://git.salome-platform.org/gitpub/modules/geom.git
synced 2024-09-23 11:12:52 +05:00
364 lines
8.6 KiB
Plaintext
364 lines
8.6 KiB
Plaintext
/*!
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\page tui_measurement_tools_page Measurement Tools
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<br><h2>Point Coordinates</h2>
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\code
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import math
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import geompy
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# create a point
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point = geompy.MakeVertex(15., 23., 80.)
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# get the coordinates of the point and check its values
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coords = geompy.PointCoordinates(point)
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# check the obtained coordinate values
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tolerance = 1.e-07
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def IsEqual(val1, val2): return (math.fabs(val1 - val2) < tolerance)
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if IsEqual(coords[0], 15.) and IsEqual(coords[1], 23.) and IsEqual(coords[2], 80.):
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print "All values are OK."
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else :
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print "Coordinates of point must be (15, 23, 80), but returned (",
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print coords[0], ", ", coords[1], ", ", coords[2], ")"
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pass
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\endcode
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<br><h2>Basic Properties</h2>
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\code
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import geompy
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import math
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# create a box
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box = geompy.MakeBoxDXDYDZ(100,30,100)
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props = geompy.BasicProperties(box)
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print "\nBox 100x30x100 Basic Properties:"
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print " Wires length: ", props[0]
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print " Surface area: ", props[1]
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print " Volume : ", props[2]
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length = math.sqrt((props[0] - 1840)*(props[0] - 1840))
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area = math.sqrt((props[1] - 32000)*(props[1] - 32000))
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volume = math.sqrt((props[2] - 300000)*(props[2] - 300000))
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if length > 1e-7 or area > 1e-7 or volume > 1e-7:
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print "While must be:"
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print " Wires length: ", 1840
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print " Surface area: ", 32000
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print " Volume : ", 300000.
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\endcode
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<br><h2>Center of masses</h2>
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\code
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import geompy
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import math
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# create a box
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box = geompy.MakeBoxDXDYDZ(100,30,100)
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cm = geompy.MakeCDG(box)
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if cm is None:
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raise RuntimeError, "MakeCDG(box) failed"
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else:
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print "\nCentre of gravity of box has been successfully obtained:"
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coords = geompy.PointCoordinates(cm)
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print "(", coords[0], ", ", coords[1], ", ", coords[2], ")"
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dx = math.sqrt((coords[0] - 50)*(coords[0] - 50))
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dy = math.sqrt((coords[1] - 15)*(coords[1] - 15))
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dz = math.sqrt((coords[2] - 50)*(coords[2] - 50))
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if dx > 1e-7 or dy > 1e-7 or dz > 1e-7:
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print "But must be (50, 15, 50)"
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\endcode
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<br><h2>Inertia</h2>
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\code
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import geompy
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import math
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# create a box
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box = geompy.MakeBoxDXDYDZ(100,30,100)
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In = geompy.Inertia(box)
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print "\nInertia matrix of box 100x30x100:"
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print " (", In[0], ", ", In[1], ", ", In[2], ")"
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print " (", In[3], ", ", In[4], ", ", In[5], ")"
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print " (", In[6], ", ", In[7], ", ", In[8], ")"
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print "Main moments of inertia of box 100x30x100:"
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print " Ix = ", In[9], ", Iy = ", In[10], ", Iz = ", In[11]
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\endcode
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<br><h2>Check Free Boundaries</h2>
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\code
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import os
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import geompy
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import salome
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gg = salome.ImportComponentGUI("GEOM")
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# create boxes
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box1 = geompy.MakeBox(0,0,0,100,50,100)
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box2 = geompy.MakeBox(100,0,0,250,50,100)
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# make a compound
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compound = geompy.MakeCompound([box1, box2])
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# import from *.brep
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ImportFromBREP = geompy.ImportBREP(os.getenv("DATA_DIR")+"/Shapes/Brep/flight_solid.brep")
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# get a face
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faces = geompy.SubShapeAllSorted(ImportFromBREP, geompy.ShapeType["FACE"])
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# get the free boundary for face 32
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Res = geompy.GetFreeBoundary(faces[32])
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isSuccess = Res[0]
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ClosedWires = Res[1]
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OpenWires = Res[2]
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if isSuccess == 1 :
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print "Checking free boudaries is OK."
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else :
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print "Checking free boudaries is KO!"
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print "len(ClosedWires) = ", len(ClosedWires)
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i = 0
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for wire in ClosedWires :
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wire_name = "Face 32 -> Close wires : WIRE %d"%(i+1)
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geompy.addToStudy(ClosedWires[i], wire_name)
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if i < len(ClosedWires) :
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i = i+ 1
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print "len(OpenWires) = ", len(OpenWires)
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i = 0
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for wire in OpenWires :
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wire_name = "Face 32 -> Open wires : WIRE %d"%(i+1)
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geompy.addToStudy(OpenWires[i], wire_name)
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if i < len(OpenWires) :
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i = i+ 1
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# get the free boundary for face 41
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Res = geompy.GetFreeBoundary(faces[41])
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isSuccess = Res[0]
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ClosedWires = Res[1]
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OpenWires = Res[2]
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if isSuccess == 1 :
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print "Checking free boudaries is OK."
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else :
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print "Checking free boudaries is KO!"
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print "len(ClosedWires) = ", len(ClosedWires)
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i = 0
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for wire in ClosedWires :
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wire_name = "Face 41 -> Close wires : WIRE %d"%(i+1)
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geompy.addToStudy(ClosedWires[i], wire_name)
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if i < len(ClosedWires) :
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i = i+ 1
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print "len(OpenWires) = ", len(OpenWires)
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i = 0
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for wire in OpenWires :
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wire_name = "Face 41 -> Open wires : WIRE %d"%(i+1)
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geompy.addToStudy(OpenWires[i], wire_name)
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if i < len(OpenWires) :
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i = i+ 1
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# add the imported object to the study
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id_ImportFromBREP = geompy.addToStudy(ImportFromBREP, "ImportFromBREP")
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salome.sg.updateObjBrowser(1)
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\endcode
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<br><h2>Check Free Faces</h2>
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\code
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import geompy
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import salome
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gg = salome.ImportComponentGUI("GEOM")
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# create a vertex and a vector
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p1 = geompy.MakeVertex(35, 35, 0)
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p2 = geompy.MakeVertex(35, 35, 50)
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v = geompy.MakeVector(p1, p2)
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# create a cylinder
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cylinder = geompy.MakeCone(p1, v, 30, 20, 20)
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# create a cone
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cone = geompy.MakeCone(p1, v, 70, 40, 60)
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# make cut
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cut = geompy.MakeCut(cone, cylinder)
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# get faces as sub-shapes
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faces = []
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faces = geompy.SubShapeAllSorted(cut, geompy.ShapeType["FACE"])
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f_2 = geompy.GetSubShapeID(cut, faces[0])
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# remove one face from the shape
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cut_without_f_2 = geompy.SuppressFaces(cut, [f_2])
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# suppress the specified wire
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result = geompy.GetFreeFacesIDs(cut_without_f_2)
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print "A number of free faces is ", len(result)
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# add objects in the study
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all_faces = geompy.SubShapeAllSorted(cut_without_f_2, geompy.ShapeType["FACE"])
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for face in all_faces :
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sub_shape_id = geompy.GetSubShapeID(cut_without_f_2, face)
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if result.count(sub_shape_id) > 0 :
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face_name = "Free face %d"%(sub_shape_id)
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geompy.addToStudy(face, face_name)
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# in this example all faces from cut_without_f_2 are free
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id_cut_without_f_2 = geompy.addToStudy(cut_without_f_2, "Cut without f_2")
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# display the results
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gg.createAndDisplayGO(id_cut_without_f_2)
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gg.setDisplayMode(id_cut_without_f_2,1)
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\endcode
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<br><h2>Bounding Box</h2>
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\code
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import geompy
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# create a box
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box = geompy.MakeBoxDXDYDZ(100,30,100)
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bb = geompy.BoundingBox(box)
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print "\nBounding Box of box 100x30x100:"
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print " Xmin = ", bb[0], ", Xmax = ", bb[1]
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print " Ymin = ", bb[2], ", Ymax = ", bb[3]
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print " Zmin = ", bb[4], ", Zmax = ", bb[5]
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\endcode
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<br><h2>Minimal Distance</h2>
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\code
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import geompy
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# create boxes
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box1 = geompy.MakeBoxDXDYDZ(100,30,100)
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box2 = geompy.MakeBox(105,0,0,200,30,100)
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min_dist = geompy.MinDistance(box1,box2)
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print "\nMinimal distance between box1 and box2 = ", min_dist
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\endcode
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<br><h2>Tolerance</h2>
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\code
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import geompy
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# create a box
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box = geompy.MakeBoxDXDYDZ(100,30,100)
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Toler = geompy.Tolerance(box)
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print "\nBox 100x30x100 tolerance:"
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print " Face min. tolerance: ", Toler[0]
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print " Face max. tolerance: ", Toler[1]
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print " Edge min. tolerance: ", Toler[2]
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print " Edge max. tolerance: ", Toler[3]
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print " Vertex min. tolerance: ", Toler[4]
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print " Vertex max. tolerance: ", Toler[5]
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\endcode
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<br><h2>Angle</h2>
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\code
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import salome
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salome.salome_init()
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import math
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import geompy
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geompy.init_geom(salome.myStudy)
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OX = geompy.MakeVectorDXDYDZ(10, 0,0)
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OXY = geompy.MakeVectorDXDYDZ(10,10,0)
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# in one plane
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Angle = geompy.GetAngle(OX, OXY)
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print "\nAngle between OX and OXY = ", Angle
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if math.fabs(Angle - 45.0) > 1e-05:
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print " Error: returned angle is", Angle, "while must be 45.0"
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pass
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# not in one plane
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OXY_shift = geompy.MakeTranslation(OXY,10,-10,20)
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Angle = geompy.GetAngle(OX, OXY_shift)
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print "Angle between OX and OXY_shift = ", Angle
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if math.fabs(Angle - 45.0) > 1e-05:
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print " Error: returned angle is", Angle, "while must be 45.0"
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pass
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# not linear
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pnt1 = geompy.MakeVertex(0, 0, 0)
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pnt2 = geompy.MakeVertex(10, 0, 0)
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pnt3 = geompy.MakeVertex(20, 10, 0)
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arc = geompy.MakeArc(pnt1, pnt2, pnt3)
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Angle = geompy.GetAngle(OX, arc)
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if (math.fabs(Angle + 1.0) > 1e-6 or geompy.MeasuOp.IsDone()):
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print "Error. Angle must not be computed on curvilinear edges"
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pass
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\endcode
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<br><h2>What Is</h2>
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\code
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import geompy
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# create a box
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box = geompy.MakeBoxDXDYDZ(100,30,100)
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Descr = geompy.WhatIs(box)
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print "\nBox 100x30x100 description:"
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print Descr
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\endcode
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<br><h2>Check Shape</h2>
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\code
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import geompy
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# create a box
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box = geompy.MakeBoxDXDYDZ(100,30,100)
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IsValid = geompy.CheckShape(box)
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if IsValid == 0:
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raise RuntimeError, "Invalid box created"
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else:
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print "\nBox is valid"
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\endcode
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<br><h2>Check Compound of Blocks</h2>
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\code
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import geompy
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import salome
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gg = salome.ImportComponentGUI("GEOM")
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# create boxes
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box1 = geompy.MakeBox(0,0,0,100,50,100)
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box2 = geompy.MakeBox(100,0,0,250,50,100)
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# make a compound
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compound = geompy.MakeCompound([box1, box2])
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# glue the faces of the compound
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tolerance = 1e-5
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glue = geompy.MakeGlueFaces(compound, tolerance)
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IsValid = geompy.CheckCompoundOfBlocks(glue)
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if IsValid == 0:
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raise RuntimeError, "Invalid compound created"
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else:
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print "\nCompound is valid"
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\endcode
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*/
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