src/SketchPlugin/Test/TestSplitEllipse.py

   1 # Copyright (C) 2019  CEA/DEN, EDF R&D
   2 #
   3 # This library is free software; you can redistribute it and/or
   4 # modify it under the terms of the GNU Lesser General Public
   5 # License as published by the Free Software Foundation; either
   6 # version 2.1 of the License, or (at your option) any later version.
   7 #
   8 # This library is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 # Lesser General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU Lesser General Public
  14 # License along with this library; if not, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 #
  17 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 #
  19
  20 from salome.shaper import model
  21 from salome.shaper import geom
  22 import math
  23
  24 from ModelAPI import *
  25 from SketchAPI import *
  26
  27 CENTER = geom.Pnt2d(10, 10)
  28 MAJOR_RADIUS = 50
  29 MINOR_RADIUS = 30
  30
  31 DOF = 10
  32 NB_LINES = 3
  33 NB_ELLIPSES = 1
  34 NB_ELLIPTIC_ARCS = 0
  35 NB_COINCIDENCES = 6
  36
  37 TOLERANCE = 1.e-6
  38
  39 def checkFeaturesQuantity(theSketch):
  40     model.testNbSubFeatures(theSketch, "SketchLine", NB_LINES)
  41     model.testNbSubFeatures(theSketch, "SketchEllipse", NB_ELLIPSES)
  42     model.testNbSubFeatures(theSketch, "SketchEllipticArc", NB_ELLIPTIC_ARCS)
  43     model.testNbSubFeatures(theSketch, "SketchConstraintCoincidence", NB_COINCIDENCES)
  44     assert(model.dof(theSketch) == DOF)
  45
  46 def checkEllipticArcs(theSketch):
  47     for aSub in theSketch.features().list():
  48         aFeature = ModelAPI_Feature.feature(aSub)
  49         if aFeature is not None and aFeature.getKind() == "SketchEllipticArc":
  50             assertEllipticArc(SketchAPI_EllipticArc(aFeature))
  51
  52 def assertEllipticArc(theArc):
  53     assertPoints(theArc.center(), CENTER)
  54     assertPoints(theArc.majorAxisPositive(), geom.Pnt2d(CENTER.x() + MAJOR_RADIUS, CENTER.y()))
  55     assertPoints(theArc.minorAxisPositive(), geom.Pnt2d(CENTER.x(), CENTER.y() + MINOR_RADIUS))
  56
  57 def assertPoints(thePoint1, thePoint2):
  58   assert(math.fabs(thePoint1.x() - thePoint2.x()) < TOLERANCE), "{} != {}".format(thePoint1.x(), thePoint2.x())
  59   assert(math.fabs(thePoint1.y() - thePoint2.y()) < TOLERANCE), "{} != {}".format(thePoint1.y(), thePoint2.y())
  60
  61
  62 model.begin()
  63 partSet = model.moduleDocument()
  64 Part_1 = model.addPart(partSet)
  65 Part_1_doc = Part_1.document()
  66 Sketch_1 = model.addSketch(Part_1_doc, model.defaultPlane("XOY"))
  67 SketchEllipse_1 = Sketch_1.addEllipse(CENTER.x(), CENTER.y(), CENTER.x() + math.sqrt(MAJOR_RADIUS**2 - MINOR_RADIUS**2), CENTER.y(), MINOR_RADIUS)
  68 SketchLine_1 = Sketch_1.addLine(-16.74176451428603, -15.34869012470842, -16.85909682653373, 35.30399198463829)
  69 SketchConstraintCoincidence_1 = Sketch_1.setCoincident(SketchLine_1.startPoint(), SketchEllipse_1.result())
  70 SketchConstraintCoincidence_2 = Sketch_1.setCoincident(SketchLine_1.endPoint(), SketchEllipse_1.result())
  71 SketchLine_2 = Sketch_1.addLine(-16.85909682653373, 35.30399198463829, 20.9032928583277, -19.27802168426675)
  72 SketchConstraintCoincidence_3 = Sketch_1.setCoincident(SketchLine_1.endPoint(), SketchLine_2.startPoint())
  73 SketchConstraintCoincidence_4 = Sketch_1.setCoincident(SketchLine_2.endPoint(), SketchEllipse_1.result())
  74 SketchLine_3 = Sketch_1.addLine(34.69765676551338, 36.08465583643841, 35.0422024535432, -15.96612629290852)
  75 SketchConstraintCoincidence_5 = Sketch_1.setCoincident(SketchLine_3.startPoint(), SketchEllipse_1.result())
  76 SketchConstraintCoincidence_6 = Sketch_1.setCoincident(SketchLine_3.endPoint(), SketchEllipse_1.result())
  77 model.do()
  78
  79 checkFeaturesQuantity(Sketch_1)
  80 checkEllipticArcs(Sketch_1)
  81
  82 # split the ellipse
  83 SketchSplit = Sketch_1.addSplit(SketchEllipse_1, geom.Pnt2d(CENTER.x() + MAJOR_RADIUS, CENTER.y()))
  84 model.do()
  85 NB_ELLIPSES -= 1
  86 NB_ELLIPTIC_ARCS += 2
  87 NB_COINCIDENCES += 4
  88 DOF += 3
  89
  90 checkFeaturesQuantity(Sketch_1)
  91 checkEllipticArcs(Sketch_1)
  92
  93 # split the middle arc of ellipse
  94 EllipticArc = SketchAPI_EllipticArc(model.lastSubFeature(Sketch_1, "SketchEllipticArc"))
  95 ANGLE = -math.pi/2 - math.pi/10
  96 SketchSplit = Sketch_1.addSplit(EllipticArc, geom.Pnt2d(CENTER.x() + MAJOR_RADIUS * math.cos(ANGLE), CENTER.y() + MINOR_RADIUS * math.sin(ANGLE)))
  97 model.do()
  98 NB_ELLIPTIC_ARCS += 2
  99 NB_COINCIDENCES += 4
 100 DOF += 8
 101
 102 checkFeaturesQuantity(Sketch_1)
 103 checkEllipticArcs(Sketch_1)
 104
 105 # try to split the boundary arc of ellipse,
 106 # it shoult fail, because there is no coincident points
 107 EllipticArc = SketchAPI_EllipticArc(model.lastSubFeature(Sketch_1, "SketchEllipticArc"))
 108 SketchSplit = Sketch_1.addSplit(EllipticArc, geom.Pnt2d(CENTER.x() - MAJOR_RADIUS, CENTER.y()))
 109 model.end()
 110 aValidators = ModelAPI_Session.get().validators()
 111 assert(not aValidators.validate(SketchSplit.feature()))
 112
 113 # remove previous split and add coincidence
 114 model.undo()
 115 model.begin()
 116 Part_1_doc.removeFeature(SketchSplit.feature())
 117 model.do()
 118 Sketch_1.setCoincident(SketchLine_2.startPoint(), EllipticArc.result())
 119 model.do()
 120 NB_COINCIDENCES += 1
 121 DOF -= 1
 122
 123 # split the boundary arc of ellipse
 124 SketchSplit = Sketch_1.addSplit(EllipticArc, geom.Pnt2d(CENTER.x() - MAJOR_RADIUS, CENTER.y()))
 125 model.do()
 126 NB_ELLIPTIC_ARCS += 1
 127 NB_COINCIDENCES += 2
 128 DOF += 4
 129
 130 checkFeaturesQuantity(Sketch_1)
 131 checkEllipticArcs(Sketch_1)
 132
 133 model.end()
 134
 135 assert(model.checkPythonDump())