united face after unify shapes

[teobo]

Hello,
after unify the shapes are unified, but I want to have the faces as well unified?
Somebody an Idea?
tia

Here I make two default cubes and move one of them 1mm in z-direction for demonstration.

Code: Select all

App.newDocument("Unnamed")
App.setActiveDocument("Unnamed1")
App.ActiveDocument=App.getDocument("Unnamed1")
Gui.ActiveDocument=Gui.getDocument("Unnamed1")
Gui.activateWorkbench("PartWorkbench")
App.ActiveDocument.addObject("Part::Box","Box")
App.ActiveDocument.ActiveObject.Label = "Cube"
App.ActiveDocument.recompute()
Gui.SendMsgToActiveView("ViewFit")
App.ActiveDocument.addObject("Part::Box","Box")
App.ActiveDocument.ActiveObject.Label = "Cube"
App.ActiveDocument.recompute()
Gui.SendMsgToActiveView("ViewFit")
Gui.activateWorkbench("DraftWorkbench")
import Draft
Draft.move([FreeCAD.ActiveDocument.Box001],FreeCAD.Vector(0.0453453063965,-2.01303875446,0.0),copy=False)
FreeCAD.ActiveDocument.recompute()
Gui.activeDocument().activeView().viewTop()
import Draft
Draft.move([FreeCAD.ActiveDocument.Box],FreeCAD.Vector(0.0,0.0,-1.0),copy=False)
FreeCAD.ActiveDocument.recompute()
Gui.activateWorkbench("PartWorkbench")
App.activeDocument().addObject("Part::MultiFuse","Fusion")
App.activeDocument().Fusion.Shapes = [App.activeDocument().Box,App.activeDocument().Box001,]
Gui.activeDocument().Box.Visibility=False
Gui.activeDocument().Box001.Visibility=False
Gui.ActiveDocument.Fusion.ShapeColor=Gui.ActiveDocument.Box.ShapeColor
Gui.ActiveDocument.Fusion.DisplayMode=Gui.ActiveDocument.Box.DisplayMode
App.ActiveDocument.recompute()

len(App.ActiveDocument.Fusion.Shape.Faces)
14
# it is a box and a box has 6 sides not 14, right?

[tanderson69]

len(App.ActiveDocument.Fusion.Shape.Faces)
14
# it is a box and a box has 6 sides not 14, right?

Not sure why you are getting 14. I am getting 12 from your script. Which makes sense from 2, 6 sides objects. Now why it is not 6 instead of 12, I am guessing you don't really want the following in your script:

Code: Select all

import Draft
Draft.move([FreeCAD.ActiveDocument.Box001],FreeCAD.Vector(0.0453453063965,-2.01303875446,0.0),copy=False)
FreeCAD.ActiveDocument.recompute()
Gui.activeDocument().activeView().viewTop()

[teobo]

len(App.ActiveDocument.Fusion.Shape.Faces)
14
# it is a box and a box has 6 sides not 14, right?

Not sure why you are getting 14. I am getting 12 from your script. Which makes sense from 2, 6 sides objects. Now why it is not 6 instead of 12, I am guessing you don't really want the following in your script:

Code: Select all

import Draft
Draft.move([FreeCAD.ActiveDocument.Box001],FreeCAD.Vector(0.0453453063965,-2.01303875446,0.0),copy=False)
FreeCAD.ActiveDocument.recompute()
Gui.activeDocument().activeView().viewTop()

yes, exactly. After debugging a while I see that I messed things (like always ) in that demoscript. (i copied that well from the history)
6 faces plus 6 faces, together 14 faces. Thats ok, but in my case it simplifies a lot if the box gets back to six faces
...

[ickby]

the fusion does sometimes not remove some unneccessary edges, that is a occ issue. you can use the menu->part->refine command to remove the edges afterwards.

[NormandC]

In python, isn't the command called with removeSplitter() ?
tanderson69 should know.

[wmayer]

Yes, it's removeSplitter().

[teobo]

In python, isn't the command called with removeSplitter() ?
tanderson69 should know.

Thanks ickby, Normand,

I found it in the codegeneration, which by the way proves how useful it is.
App.ActiveDocument.addObject('Part::Feature','Fusion').Shape=App.ActiveDocument.Fusion.Shape.removeSplitter()

And I still wonder where this functionality is (best) documented. Could need a tip.
If it is in occ have not found or do not know how to search for it.
And if it is within FreeCAD, the same do not know how to search for it (in the source code)

I found
https://github.com/mrlukeparry/freecad/ ... .cpp#L1802
and there I find:
ModelRefine::FaceUniter uniter(currentShell);

So here I loose track, is this (interface) part of occ, if not where occ comes in?

Tia

[wmayer]

It's a self-written algorithm done by tanderson69. The method TopoShape::removeSplitter() checks the passed shape type and applies the algorithm to all shells inside this shape. The actual algorithm is implemented inside the class FaceUniter (see modelRefine.cpp)

[tanderson69]

tanderson69 should know.

I do. Sometimes I choose to respond to one aspect of a problem at a time. I was going to let him fix his script and then move on to the refinement. Besides, it leaves the low hanging fruit for you.

[NormandC]

Besides, it leaves the low hanging fruit for you.

Considering how short my python legs are, I appreciate it!