How can we create named selections containing the line bodies that have the same cross section using

Erik Kostson

We have an assembly of parts inside Mechanical that have line bodies with different cross section assignments, and we would like to create named selections where every named selection (ns) contains only line bodies with the same cross section, using scripting. For instance, if the cross sections used are Rectangular, Circular, and Circular Tube, then one ns will have all parts using the Rectangular Section, another ns will contain all parts with a Circular section, and the final one will have all parts with a Circular Tube section (). The name of the ns will be the same as the cross section names used by the line bodies (in the case below, Rectangular, Circular, and Circular Tube).

Erik Kostson

The below Mechanical python script does that automatically (copy/paste and run from the Mechanical scripting console):

 

 

model = ExtAPI.DataModel.Project.Model
sections=model.CrossSections.Children # get all materials

Parts = model.Geometry.GetChildren(DataModelObjectCategory.Part,True) # get all parts
selId = []

SlMn = ExtAPI.SelectionManager
SlMn.ClearSelection()
Sel = SlMn.CreateSelectionInfo(SelectionTypeEnum.GeometryEntities)

for sec in sections: # loop over sec.
    for Part in Parts: # loop over parts
        for Body in Part.Children:
            Bsecname = Body.CrossSectionName
            if (sec.Name) == (Bsecname) and (Body.GeometryType)==(GeometryType.Line): # if the part sec. name is same as sec in loop
                BId = Body.GetGeoBody().Id
                selId.append(BId) # add to array storing parts
    Sel.Ids=selId
    if len(selId)>0:
        ns=model.AddNamedSelection()
        ns.Location=Sel
        ns.Name=sec.Name
    selId=[]
    SlMn.ClearSelection()