HELP With Fill Command

So, I have a question on how to fill.

I have a large number of shapes made by curves. I would like to fill in the area outside of the shapes, and not in the shapes. Below is the code I figured out would fill in the shapes. How can I modify this code?

selection = Selection.Create(Curve1,Curve2,Curve3,Curve4,Curve5,Curve) secondarySelection = Selection.Empty()
options = FillOptions()
results = Fill.Execute(selection, secondarySelection, options, FillMode.ThreeD, Info2)

Thanks for your help,

Colin

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NickFL

I take it you have a bounding curve and various curves inside of this region that you want to open (like swiss cheese). Here is a code I wrote to do something similar, but it may be overkill for what you need.

# Python Script, API Version = V23
def isParent(face0,face1):
    BB = face0.Shape.GetBoundingBox(Matrix.Identity).Size.Magnitude
    bb = face1.Shape.GetBoundingBox(Matrix.Identity).Size.Magnitude

    test = BB.CompareTo(bb)
    if test == 1:          # Python is wierd
        Q = True
    else:
        Q = False

    return(Q)

def findOuter(facesToReview):
    Parents, Children = [], []
    outerFaces = list([])
    for face in facesToReview:
        numberOfNeighbors = face.AdjacentFaces.Count

        # skip those adjacent faces that are no longer part of facesToReview
        for n in range(numberOfNeighbors):
            if not(face.AdjacentFaces[n] in facesToReview):
                continue

            if isParent(face,face.AdjacentFaces[n]):
                Parents.append(face)
                Children.append(face.AdjacentFaces[n])
            else:
                Parents.append(face.AdjacentFaces[n])
                Children.append(face)

    # Outer faces will be only in parents not in children
    for p in Parents:
        if not(p in Children):               
            outerFaces.append(p)

    # Remove Duplicates
    p = outerFaces.__len__()
    i = p - 1
    while i >= 1:
        if outerFaces[i] == outerFaces[i-1]:
            del outerFaces[i]
        i -= 1

    return(outerFaces)

def isIsolated(facesToReview):
    isoFaces, newFacesToReview = list([]), list([])
    for face in facesToReview:
        neighbors = 0
        for adjacentFace in face.AdjacentFaces:
            if adjacentFace in facesToReview:
                neighbors += 1

        if neighbors == 0: 
            isoFaces.append(face)
        else:
            newFacesToReview.append(face)

    return(isoFaces,newFacesToReview)

myBody = GetRootPart().Bodies[-1]      # Change me here!!!
facesToReview = myBody.Faces[:] 
deleteMe = False                    # level 1 keep
facesToDelete = list([])

while facesToReview.Count > 0:
    (isoFaces, facesToReview) = isIsolated(facesToReview)
    if deleteMe: facesToDelete += isoFaces

    #Find outer faces
    outerFaces = findOuter(facesToReview)
    for outer in outerFaces:
        if facesToReview.Contains(outer) == True: facesToReview.remove(outer)
        if deleteMe: facesToDelete.append(outer) # add only when on right level

    # Alternates betwen delete (2nd, 4th) and not (1st, 3rd)
    deleteMe = not(deleteMe)

selection = FaceSelection.Create(facesToDelete)
result = Delete.Execute(selection)

A couple of points. 1) it currently set up to work on the last created body. You can change that in the myBody variable. 2) It is set up to keep inside the alternating lines. That means if you have a circle inside a circle inside a circle, it will keep the first and thrid circles resulting in a donut with a dot in it. If you don't want this, we can simplify this down a bunch. 3) Lastly, there may be a warning that is given. This is expected because of how I am removing the faces from the lists.

Let me know if you have any questions. Hopefully this helps.

needhelp

Hey,

Thanks so much, I am learning as I go...sorry for no reprex.
I will test this out today and respond.

needhelp

Hi Nick

I tried using your code, but because I am really new, I have a hard time viewing the named bodies in the program.

So far, I have generated enough code to give an example. What I can't figure out is how to create a face or faces between and the curves in Line 19 and then delete this/these faces. Is there any way to do that?

Attached is my code.

Really grateful for your help!

Python Script, API Version = V241

Fill

selection = Selection.Create(Curve1, Curve2, Curve3, Curve4, Curve5, Curve6, Curve7, Curve8, Curve9, Curve10, Curve11, Curve12, Curve13, Curve14, Curve15, Curve16, Curve17, Curve18, Curve19, Curve20, Curve21, Curve22, Curve23, Curve24)
secondarySelection = Selection.Empty()
options = FillOptions()
result = Fill.Execute(selection, secondarySelection, options, FillMode.ThreeD, Info1)

EndBlock

Delete Selection

selection = Curve25
result = Delete.Execute(selection)

EndBlock

Note that to select multiple of our curves, you have to hold ctrl when you start the polygon, and when you stop to s

select the polygon

Line 19

Fill

Note that Curve... goes for a long time and is omitted here

selection = Selection.Create(Curve26, Curve27, Curve28, Curve29, Curve30, Curve... )
secondarySelection = Selection.Empty()
options = FillOptions()
result = Fill.Execute(selection, secondarySelection, options, FillMode.ThreeD, Info2)

EndBlock

#

So far, this selects and fills all the pit holes

Now I am going to fill the hole thing and then remove the faces

Fill

selection = Curve3636
secondarySelection = Selection.Empty()
options = FillOptions()
result = Fill.Execute(selection, secondarySelection, options, FillMode.ThreeD, Info3)