How to replace a Group after an Imprint operation in SpaceClaim?

Nikos Kallitsis

I have a Geometry in SCDM with a Solid body and a Surface which is overlapping with one of the Solid's faces. There's a Group / Named Selection that contains the Surface.

After an Imprint operation, I want to modify the Named Selection so that it contains the Solid's face created from the Imprint.

How can I do this in an Automated fashion?

Nikos Kallitsis

You can use the script below to do this. The script identifies the solids and the surfaces, does the Imprint operation, and then compares the faces in each Named Selection with the faces of the Solid. If in the comparison the faces match - verified through coincident edges - a new Named Selection is created to replace the old one.
`
def get_solid_body():

# Get the root part
part = GetRootPart()

# Get all the bodies in the entire part
allBodies = part.GetAllBodies()

#Find Solid body
for body in allBodies:
    is_solid = body.GetMaster().Shape.IsClosed
    if is_solid:
        solidBody = body
        break

return solidBody

def imprint_curves():

# Imprint Curves
options = FixImprintOptions()
options.Tolerance = MM(0.01)
options.SearchFaces = True
options.SearchEdges = True
options.SearchCurves = True
options.ImprintInstanceType = ImprintInstanceType.IgnoreInstances
result = FixImprint.FindAndFix(options)

def replace_named_selections(targetBody):

# Get all Groups
groups = WindowHelper.GetGroups()

for group in groups: # Process each group / Named Selection
    groupName = group.GetName()
    print("Processing group: " + groupName)
    groupSelection = Selection.CreateByGroups(SelectionType.Primary, groupName)

    group_found = False

    for originFace in groupSelection.Items: # Iterate over face(s) included in the Group
        print("Origin Face: " + str(originFace))
        found = False

        for targetFace in targetBody.Faces:
            print("Checking target face: " + str(targetFace))
            if found:
                break

            # Check if all edges in originFace have a matching edge in targetFace
            noEdges = len(originFace.Edges)
            counter = 0

            for originEdge in originFace.Edges:
                print("Origin Edge: " + str(originEdge))

                for targetEdge in targetFace.Edges:
                    print("Target Edge: " + str(targetEdge))

                    # Measure distances
                    selection = EdgeSelection.Create([originEdge,targetEdge])

                    gapObj = MeasureHelper.MinDistanceBetweenObjects(selection)
                    minDistanceObj = gapObj.Distance
                    print("Min Distance (Objects):" + str(minDistanceObj))

                    gapAxes = MeasureHelper.MinDistanceBetweenAxes(selection)
                    minDistanceAxes = gapAxes.Distance
                    print("Min Distance (Axes):" + str(minDistanceAxes))

                    # Check if edges match
                    if minDistanceObj < 1e-16 and minDistanceAxes < 1e-16:
                        counter += 1
                        print('One match found')
                        break

                if counter == noEdges:
                    found = True
                    break

            if found and counter == noEdges:

                # Delete the original named selection group
                result = NamedSelection.Delete(groupName)

                # Create new Named Selection with targetFace
                primarySelection = FaceSelection.Create(targetFace)
                secondarySelection = Selection.Empty()
                result = NamedSelection.Create(primarySelection, secondarySelection)

                # Get the newly created group and rename it
                newGroup = WindowHelper.GetGroups()[-1]
                result = NamedSelection.Rename(newGroup.GetName(), groupName)

                print("Named selection replaced")
                group_found = True
                break  # Break out of the inner loop once the named selection is replaced

        if group_found:
            break  # Move on to the next group if the named selection was replaced

tBody = get_solid_body()
result = imprint_curves()
result = replace_named_selections(tBody)
`