How Does the Fill Command Create a Face, and How do I Delete Them?

Background

Over the last month, I have tried to answer my own question and just can't. What I could really use help with is directions or resources to fix the issue that exists.

The Problem

I have a complex geometry where many (approximately 300) odd shaped pores exist inside of 10mm circle and outside of a smaller circle of 3.5mm. My goal is to fill the whole area inside of the circle and then delete the faces inside those odd shapes. So far, all I can figure out is...

*select using a polygon which looks like,

selection=Selection.Create(Curve26,Curve...,

I think then I would merge faces with the outside circle and those faces already filled and use select and facets to delete? Please see my example code for a far simpler example where I do just this.
The issue I run into with this is, because it is really complex and filled with tons of shapes, it is hard to merge everything well.
I feel like the easiest way would be to sequentially create faces, merge them, and then delete only the relevant ones.

If anyone could help, that would be awesome. I really need to scale a solution to this larger problem.

Example Code

# Sketch Circle
origin = Point2D.Create(MM(0), MM(0))
result = SketchCircle.Create(origin, MM(5.3851648071345))

baseSel = SelectionPoint.Create(CurvePoint35)
targetSel = SelectionPoint.Create(DatumLine2)

result = Constraint.CreateCoincident(baseSel, targetSel)

baseSel = SelectionPoint.Create(CurvePoint35)
targetSel = SelectionPoint.Create(DatumLine3)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Circle
origin = Point2D.Create(MM(0), MM(0))
result = SketchCircle.Create(origin, MM(20.6155281280883))

baseSel = SelectionPoint.Create(CurvePoint36)
targetSel = SelectionPoint.Create(DatumPoint2)

result = Constraint.CreateCoincident(baseSel, targetSel)

baseSel = Curve19
targetSel = Curve20
result = Constraint.CreateConcentric(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(-13), MM(11))
end = Point2D.Create(MM(-13), MM(7))
result = SketchLine.Create(start, end)

curveSelList = Curve21
result = Constraint.CreateVertical(curveSelList)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(-13), MM(7))
end = Point2D.Create(MM(-5), MM(7))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint37)
targetSel = SelectionPoint.Create(CurvePoint38)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(-5), MM(7))
end = Point2D.Create(MM(-4), MM(10.7320508075689))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint39)
targetSel = SelectionPoint.Create(CurvePoint40)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(-4), MM(10.7320508075689))
end = Point2D.Create(MM(-13), MM(11))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint41)
targetSel = SelectionPoint.Create(CurvePoint42)

result = Constraint.CreateCoincident(baseSel, targetSel)

baseSel = SelectionPoint.Create(CurvePoint43)
targetSel = SelectionPoint.Create(CurvePoint44)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(10), MM(11))
end = Point2D.Create(MM(6.53589838486224), MM(5))
result = SketchLine.Create(start, end)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(6.53589838486224), MM(5))
end = Point2D.Create(MM(14), MM(3))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint45)
targetSel = SelectionPoint.Create(CurvePoint46)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(14), MM(3))
end = Point2D.Create(MM(14), MM(8))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint47)
targetSel = SelectionPoint.Create(CurvePoint48)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(14), MM(8))
end = Point2D.Create(MM(10), MM(11))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint49)
targetSel = SelectionPoint.Create(CurvePoint50)

result = Constraint.CreateCoincident(baseSel, targetSel)

baseSel = SelectionPoint.Create(CurvePoint51)
targetSel = SelectionPoint.Create(CurvePoint52)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(9), MM(-4))
end = Point2D.Create(MM(6), MM(-11))
result = SketchLine.Create(start, end)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(6), MM(-11))
end = Point2D.Create(MM(15), MM(-9))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint53)
targetSel = SelectionPoint.Create(CurvePoint54)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(15), MM(-9))
end = Point2D.Create(MM(16.2589844124411), MM(-5))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint55)
targetSel = SelectionPoint.Create(CurvePoint56)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(16.2589844124411), MM(-5))
end = Point2D.Create(MM(9), MM(-4))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint57)
targetSel = SelectionPoint.Create(CurvePoint58)

result = Constraint.CreateCoincident(baseSel, targetSel)

baseSel = SelectionPoint.Create(CurvePoint59)
targetSel = SelectionPoint.Create(CurvePoint60)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(-11), MM(-3))
end = Point2D.Create(MM(-12), MM(-9))
result = SketchLine.Create(start, end)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(-12), MM(-9))
end = Point2D.Create(MM(-5), MM(-12.1845262184354))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint61)
targetSel = SelectionPoint.Create(CurvePoint62)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(-5), MM(-12.1845262184354))
end = Point2D.Create(MM(-5), MM(-5))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint63)
targetSel = SelectionPoint.Create(CurvePoint64)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Sketch Line
start = Point2D.Create(MM(-5), MM(-5))
end = Point2D.Create(MM(-11), MM(-3))
result = SketchLine.Create(start, end)

baseSel = SelectionPoint.Create(CurvePoint65)
targetSel = SelectionPoint.Create(CurvePoint66)

result = Constraint.CreateCoincident(baseSel, targetSel)

baseSel = SelectionPoint.Create(CurvePoint67)
targetSel = SelectionPoint.Create(CurvePoint68)

result = Constraint.CreateCoincident(baseSel, targetSel)
# EndBlock

# Fill
selection = Curve20
secondarySelection = Selection.Empty()
options = FillOptions()
result = Fill.Execute(selection, secondarySelection, options, FillMode.Layout, Info10)
# EndBlock

# Fill
selection = Selection.Create(Curve21, Curve22, Curve23, Curve24, Curve25, Curve26, Curve27, Curve28, Curve29, Curve30, Curve31, Curve32, Curve33, Curve34, Curve35, Curve36)
secondarySelection = Selection.Empty()
options = FillOptions()
result = Fill.Execute(selection, secondarySelection, options, FillMode.Layout, Info11)
# EndBlock

# Fill
selection = Curve19
secondarySelection = Selection.Empty()
options = FillOptions()
result = Fill.Execute(selection, secondarySelection, options, FillMode.Layout, Info12)
# EndBlock

# Solidify Sketch
mode = InteractionMode.Solid
result = ViewHelper.SetViewMode(mode, Info13)
# EndBlock

# Create New Face
selection = Face1
result = ReplaceFacesWithFace.Execute(selection)
# EndBlock

# Delete Selection
selection = Face3
result = Delete.Execute(selection)
# EndBlock

# Delete Selection
selection = Face4
result = Delete.Execute(selection)
# EndBlock

# Delete Selection
selection = Face5
result = Delete.Execute(selection)
# EndBlock

# Delete Selection
selection = Face2
result = Delete.Execute(selection)
# EndBlock

# Set Sketch Plane
sectionPlane = Plane.PlaneXY
result = ViewHelper.SetSketchPlane(sectionPlane, Info14)
# EndBlock

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Comments

NickFL

Hello needhelp,

A couple of things here: I recommend using Index Variables instead of Intelligent Variables as it gives you better reproducibility. When I try to follow your code, I don't have a CurvePoint35 for example.

Sorry I did not see your replies in the reqest here: https://discuss.ansys.com/discussion/4690/help-with-fill-command . It doesn’t appear that the forum sends emails out when someone replies to a topic (or the email blocks them, they aren’t in SPAM). The approach I used there was to grab all the faces on one plane. Using a loop, I then compare the Bounding Box of each of the faces. Of course, the Bounding Box of the outer face will be larger than that of an inner face and this is the test that is used in the findOuter routine.

If you need direct help, you should be able to find my contact information at the following webpage: https://www.tu-chemnitz.de/chemie/tech/mitarbeiter.php

Nick F. L.

NickFL

Create your sketch on a plane. Then you should be able to run the following to create a Surface Body.

``` # Python Script, API Version = V23

Fills between all the curves, everything in at one surface body

selection = Selection.Create(GetRootPart().DatumPlanes[-1].Curves[:])
secondarySelection = Selection.Empty()
options = FillOptions()
options.AutoExtendFillArea = False
options.PatchBlend = False
options.ZipLaminarEdges = False
options.GapAngle = DEG(10)
options.GapDistance = MM(0.1)
options.UntrimSingleFace = True
options.AllowMultiFacePatch = False
result = Fill.Execute(selection, secondarySelection, options, FillMode.Layout, None)

EndBlock

This Keeps your Sketch

selection = Selection.Create(GetRootPart().DatumPlanes[0].GetChildrenIDocObject[-1])
result = SketchHelper.SetSketchLayout(selection, True)

EndBlock

Returns to 3D mode

mode = InteractionMode.Solid
result = ViewHelper.SetViewMode(mode, None)

EndBlock

```