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FEM: Port elmer transient analysis to multiframe results

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This commit is contained in:
Stefan Tröger
2025-03-01 12:13:05 +01:00
committed by Benjamin Nauck
parent c815612dc6
commit 22c8d389d4
7 changed files with 168 additions and 67 deletions
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2
src/Mod/Fem/femsolver/elmer/solver.py
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@@ -152,8 +152,6 @@ class Proxy(solverbase.Proxy):
obj.addProperty("App::PropertyLink", "ElmerResult", "Base", "", 4 | 8)
obj.addProperty("App::PropertyLinkList", "ElmerTimeResults", "Base", "", 4 | 8)
obj.addProperty("App::PropertyLink", "ElmerOutput", "Base", "", 4 | 8)
obj.addProperty(

64
src/Mod/Fem/femsolver/elmer/tasks.py
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@@ -279,64 +279,36 @@ class Results(run.Results):
# a line has the form like this:
# <DataSet timestep=" 5.000E-02" group="" part="0" file="FreeCAD_t0001.vtu"/>
# so .split("\"") gives as 2nd the time and as 7th the filename
files = []
values = []
for i in range(0, len(pvdContent) - 2):
# get time
lineArray = pvdContent[i + 1].split('"')
time = float(lineArray[1])
filename = os.path.join(self.directory, lineArray[7])
if os.path.isfile(filename):
self._createTimeResults(time, i + 1)
self.solver.ElmerTimeResults[i].read(filename)
# for eigen analyses the resulting values are by a factor 1000 to high
# therefore scale all *EigenMode results
self.solver.ElmerTimeResults[i].ViewObject.transformField(
"displacement EigenMode1", 0.001
)
self.solver.ElmerTimeResults[i].recomputeChildren()
# recompute() will update the result mesh data
# but not the shape and bar coloring
self.solver.ElmerTimeResults[i].ViewObject.updateColorBars()
values.append(time)
files.append(filename)
else:
self.pushStatus(f"\nResult file for time {time} is missing.\n")
self.fail()
return
if self.solver.ElmerResult is None:
self._createResults()
self.solver.ElmerResult.read(files, values, FreeCAD.Units.TimeSpan, "Time")
# for eigen analyses the resulting values are by a factor 1000 to high
# therefore scale all *EigenMode results
self.solver.ElmerResult.ViewObject.transformField("displacement EigenMode1", 0.001)
self.solver.ElmerResult.recomputeChildren()
self.solver.Document.recompute()
# recompute() updated the result mesh data
# but not the shape and bar coloring
self.solver.ElmerResult.ViewObject.updateColorBars()
def _createTimeResults(self, time, counter):
# if self.solver.ElmerTimeResults[counter] exists, but time is different
# recreate, other wise append
# FreeCAD would replaces dots in object names with underscores, thus do the same
newName = self.solver.Name + "_" + str(time).replace(".", "_") + "_" + "Result"
if counter > len(self.solver.ElmerTimeResults):
pipeline = self.analysis.Document.addObject("Fem::FemPostPipeline", newName)
# App::PropertyLinkList does not support append
# thus we have to use a temporary list to append
tmplist = self.solver.ElmerTimeResults
tmplist.append(pipeline)
self.solver.ElmerTimeResults = tmplist
self._finishTimeResults(time, counter - 1)
else:
# recreate if time is not equal
if self.solver.ElmerTimeResults[counter - 1].Name != newName:
# store current list before removing object since object removal will automatically
# remove entry from self.solver.ElmerTimeResults
tmplist = self.solver.ElmerTimeResults
self.analysis.Document.removeObject(self.solver.ElmerTimeResults[counter - 1].Name)
tmplist[counter - 1] = self.analysis.Document.addObject(
"Fem::FemPostPipeline", newName
)
self.solver.ElmerTimeResults = tmplist
self._finishTimeResults(time, counter - 1)
def _finishTimeResults(self, time, counter):
# we purposely use the decimal dot in the label
self.solver.ElmerTimeResults[counter].Label = f"{self.solver.Name}_{time}_Result"
self.solver.ElmerTimeResults[counter].ViewObject.OnTopWhenSelected = True
self.analysis.addObject(self.solver.ElmerTimeResults[counter])
# to assure the user sees something, set the default to Surface
self.solver.ElmerTimeResults[counter].ViewObject.DisplayMode = "Surface"
def _getResultFile(self):
postPath = None

2
src/Mod/Fem/femsolver/elmer/writer.py
View File

@@ -362,8 +362,6 @@ class Writer:
"Order of time stepping method 'BDF'",
)
solver.BDFOrder = (2, 1, 5, 1)
if not hasattr(self.solver, "ElmerTimeResults"):
solver.addProperty("App::PropertyLinkList", "ElmerTimeResults", "Base", "", 4 | 8)
if not hasattr(self.solver, "OutputIntervals"):
solver.addProperty(
"App::PropertyIntegerList",