FEM: move setup simple box static and frequency example from unit tes…

…ts to fem examples

src/Mod/Fem/CMakeLists.txt

@@ -35,6 +35,7 @@ SET(FemCommands_SRCS
 
 SET(FemExamples_SRCS
     femexamples/__init__.py
+    femexamples/boxanalysis.py
     femexamples/ccx_cantilever_std.py
     femexamples/manager.py
     femexamples/multimaterial_twoboxes.py

src/Mod/Fem/femexamples/boxanalysis.py

@@ -0,0 +1,182 @@
+# ***************************************************************************
+# *   Copyright (c) 2019 Bernd Hahnebach <bernd@bimstatik.org>              *
+# *                                                                         *
+# *   This file is part of the FreeCAD CAx development system.              *
+# *                                                                         *
+# *   This program is free software; you can redistribute it and/or modify  *
+# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
+# *   as published by the Free Software Foundation; either version 2 of     *
+# *   the License, or (at your option) any later version.                   *
+# *   for detail see the LICENCE text file.                                 *
+# *                                                                         *
+# *   FreeCAD is distributed in the hope that it will be useful,            *
+# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+# *   GNU Library General Public License for more details.                  *
+# *                                                                         *
+# *   You should have received a copy of the GNU Library General Public     *
+# *   License along with FreeCAD; if not, write to the Free Software        *
+# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+# *   USA                                                                   *
+# *                                                                         *
+# ***************************************************************************
+
+
+import FreeCAD
+import ObjectsFem
+import Fem
+
+mesh_name = "Mesh"  # needs to be Mesh to work with unit tests
+
+
+def init_doc(doc=None):
+    if doc is None:
+        doc = FreeCAD.newDocument()
+    return doc
+
+
+def setup_base(doc=None, solver="ccxtools"):
+    # setup box base model
+
+    if doc is None:
+        doc = init_doc()
+
+    # part
+    box_obj = doc.addObject("Part::Box", "Box")
+    box_obj.Height = box_obj.Width = box_obj.Length = 10
+    doc.recompute()
+
+    if FreeCAD.GuiUp:
+        import FreeCADGui
+        FreeCADGui.ActiveDocument.activeView().viewAxonometric()
+        FreeCADGui.SendMsgToActiveView("ViewFit")
+
+    # analysis
+    analysis = ObjectsFem.makeAnalysis(doc, "Analysis")
+
+    # material
+    material_object = analysis.addObject(
+        ObjectsFem.makeMaterialSolid(doc, "MechanicalMaterial")
+    )[0]
+    mat = material_object.Material
+    mat["Name"] = "Steel-Generic"
+    mat["YoungsModulus"] = "200000 MPa"
+    mat["PoissonRatio"] = "0.30"
+    mat["Density"] = "7900 kg/m^3"
+    material_object.Material = mat
+
+    # mesh
+    # from .meshes.mesh_canticcx_tetra10 import create_nodes, create_elements
+    from femtest.data.ccx.cube_mesh import create_nodes_cube as create_nodes
+    from femtest.data.ccx.cube_mesh import create_elements_cube as create_elements
+    fem_mesh = Fem.FemMesh()
+    control = create_nodes(fem_mesh)
+    if not control:
+        FreeCAD.Console.PrintError("Error on creating nodes.\n")
+    control = create_elements(fem_mesh)
+    if not control:
+        FreeCAD.Console.PrintError("Error on creating elements.\n")
+    femmesh_obj = analysis.addObject(
+        doc.addObject("Fem::FemMeshObject", mesh_name)
+    )[0]
+    femmesh_obj.FemMesh = fem_mesh
+
+    doc.recompute()
+    return doc
+
+
+def setup_static(doc=None, solver="ccxtools"):
+    # setup box static, add a fixed, force and a pressure constraint
+
+    doc = setup_base(doc, solver)
+    box_obj = doc.Box
+    analysis = doc.Analysis
+
+    # solver
+    # TODO How to pass multiple solver for one analysis in one doc
+    if solver == "calculix":
+        solver_object = analysis.addObject(
+            ObjectsFem.makeSolverCalculix(doc, "SolverCalculiX")
+        )[0]
+    elif solver == "ccxtools":
+        solver_object = analysis.addObject(
+            ObjectsFem.makeSolverCalculixCcxTools(doc, "CalculiXccxTools")
+        )[0]
+        solver_object.WorkingDir = u""
+    elif solver == "elmer":
+        analysis.addObject(ObjectsFem.makeSolverElmer(doc, "SolverElmer"))
+    elif solver == "z88":
+        analysis.addObject(ObjectsFem.makeSolverZ88(doc, "SolverZ88"))
+    if solver == "calculix" or solver == "ccxtools":
+        solver_object.AnalysisType = "static"
+        solver_object.GeometricalNonlinearity = "linear"
+        solver_object.ThermoMechSteadyState = False
+        solver_object.MatrixSolverType = "default"
+        solver_object.IterationsControlParameterTimeUse = False
+
+    # fixed_constraint
+    fixed_constraint = analysis.addObject(
+        ObjectsFem.makeConstraintFixed(doc, name="FemConstraintFixed")
+    )[0]
+    fixed_constraint.References = [(box_obj, "Face1")]
+
+    # force_constraint
+    force_constraint = analysis.addObject(
+        ObjectsFem.makeConstraintForce(doc, name="FemConstraintForce")
+    )[0]
+    force_constraint.References = [(box_obj, "Face6")]
+    force_constraint.Force = 40000.0
+    force_constraint.Direction = (box_obj, ["Edge5"])
+    force_constraint.Reversed = True
+
+    # pressure_constraint
+    pressure_constraint = analysis.addObject(
+        ObjectsFem.makeConstraintPressure(doc, name="FemConstraintPressure")
+    )[0]
+    pressure_constraint.References = [(box_obj, "Face2")]
+    pressure_constraint.Pressure = 1000.0
+    pressure_constraint.Reversed = False
+
+    doc.recompute()
+    return doc
+
+
+def setup_frequency(doc=None, solver="ccxtools"):
+    # setup box frequency, change solver attributes
+
+    doc = setup_base(doc, solver)
+    analysis = doc.Analysis
+
+    # solver
+    # TODO How to pass multiple solver for one analysis in one doc
+    if solver == "calculix":
+        solver_object = analysis.addObject(
+            ObjectsFem.makeSolverCalculix(doc, "SolverCalculiX")
+        )[0]
+    elif solver == "ccxtools":
+        solver_object = analysis.addObject(
+            ObjectsFem.makeSolverCalculixCcxTools(doc, "CalculiXccxTools")
+        )[0]
+        solver_object.WorkingDir = u""
+    if solver == "calculix" or solver == "ccxtools":
+        solver_object.AnalysisType = "frequency"
+        solver_object.GeometricalNonlinearity = "linear"
+        solver_object.ThermoMechSteadyState = False
+        solver_object.MatrixSolverType = "default"
+        solver_object.IterationsControlParameterTimeUse = False
+        solver_object.EigenmodesCount = 10
+        solver_object.EigenmodeHighLimit = 1000000.0
+        solver_object.EigenmodeLowLimit = 0.01
+
+    doc.recompute()
+    return doc
+
+
+"""
+from femexamples import boxanalysis as box
+
+box.setup_base()
+box.setup_static()
+box.setup_frequency()
+
+"""