Add parts to BooleanFragments

[HoWil]

Hello,
Is there a way to change the childs of BooleanFragments in part-Wb? I want to add or remove elements without deleting the existing BooleanFragments each time I have to change something and creating a new one.

BTW: I use BooleanFragments for building multibody-FEM-mesh-models. I have to change these models for different studies, that is why I need to change the BooleanFragments-elements.

The usual drag-n-drop to add something into a group is not working and there is no property in the Data-view where one could select/change the incorporated elements.
A python-console workaround would also be appreciated.
Thanks in advance,
HoWil

[microelly2]

you can use a method in the open scad wb to replace components in a boolean tree

[Willem]

Hi, drag and drop works well in my design. The only thing is you have to recompute by running the macro "Forcerecompute" because this is not done automatically, or you have to go on with your design until it recomputes automatically

[HoWil]

you can use a method in the open scad wb to replace components in a boolean tree

Hi microelly2,
this option is greyed out for me... see the attached screencast. Deleting works!

Hi, drag and drop works well in my design. The only thing is you have to recompute by running the macro "Forcerecompute" because this is not done automatically, or you have to go on with your design until it recomputes automatically

Hi Willem,
Drag and drop does not work for me... please see the screencast. Are you doing something similar? Which version of FC do you use?

fc.webm

Screencast. showing the greyed out option in open-scad and forbidden drag and drop.

(577.88 KiB) Downloaded 245 times

Thanks in advance,
HoWil

OS: Ubuntu 16.04.2 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.10460 (Git)
Build type: None
Branch: master
Hash: 91c59c7910436c44ede608e29d9a90a287121a11
Python version: 2.7.12
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.1.0

[DeepSOIC]

I recently saw that drag-and-drop support is accessible to python, so I might have a crack at this.

[Willem]

Hi, my version:

OS: Ubuntu 16.04.2 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.16.6707 (Git)
Build type: None
Branch: releases/FreeCAD-0-16
Hash: 5465bc47c95db45e0be85dc0e2872419efadce0f
Python version: 2.7.12
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17

With a very simple design it drag and drop works, I made an example
Solid made with a Fuse and a Cut
A separate torus
Drag and drop torus in the Fuse
Forcerecompute with macro
The torus is now part of the Solid

I can imagine that with complex models the recompute can fail

boolean.gif (397.95 KiB) Viewed 1315 times

[DeepSOIC]

Version: 0.16.6707 (Git)

It doesn't even have BooleanFragments! This is new to 0.17. They are completely different beast from regular BOPs in that they are implemented in python.

[HoWil]

With a very simple design it drag and drop works, I made an example
Solid made with a Fuse and a Cut
A separate torus
Drag and drop torus in the Fuse
Forcerecompute with macro
The torus is now part of the Solid

I can imagine that with complex models the recompute can fail

Dear Willem,

Fuse like all Boolean operations does work for me too. The operation I need is "Boolean Fragments"

32px-Part_BooleanFragments.png (1.92 KiB) Viewed 1310 times

(see Part_BooleanFragments or https://www.freecadweb.org/wiki/Part_BooleanFragments) and here the interface behaves different!!

Thanks nevertheless,
BR,
HoWil

[HoWil]

I recently saw that drag-and-drop support is accessible to python, so I might have a crack at this.

Thx

[microelly2]

you can use a method in the open scad wb to replace components in a boolean tree

Hi microelly2,
this option is greyed out for me... see the attached screencast. Deleting works!

You have to select 3 objects:
1. the complete target (example cut)
2. the subpart which should be replaced (example cylinder)
3. the new subpart (example sphere)