cannot make a compound or a union or even a simple copy of the App::Part structure

[FreeCAD-Bug-Importer]

Issue imported from https://tracker.freecad.org/view.php?id=2905

• Reporter: easyw-fc
• Date submitted: 2/17/2017
• FreeCAD version: 0.17
• Category: Feature
• Status: new
• Tags: 3D printing, App::Part, Part Design, simple copy, STEP, STL

Original report text

for App::Part models in its structure I miss the option to:

1. make a compound
2. make a union
3. make a simple copy

Additional information

forum thread
https://forum.freecadweb.org/viewtopic.php?f=22&t=20698&p=160405#p160384

Steps to reproduce

1. in FC 0.17 create a new doc
2. go to Part Design Next
3. Make a Part
4. goto Part
5. create a Cube and a Cone
6. move Cube and Cone into Part container
7. select Part
8. try to make compound, make union or even make a single copy
   everything is disabled

Other bug information

• Priority: high
• Severity: feature
• Category: Feature
• Updated: 2/6/2021

Discussion from Mantis ticket

Comment by ickby 2017-02-17 14:31

An App::Part container is a universal object which can hold any kind of DocumentObject like meshs or Paths or even pictures. I can't work with Part tools (Booleans, Compound etc.) which work with Part::Features only and hence result in a undefined behavior. The App::Part object should not work with those tools. Current behavior is correct.

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Comment by ickby 2017-02-17 14:34

To point 3: make a simple copy. I agree that the simple copy tool should handle App::Part objects, but this must involve creating a simple copy of all child DocumentObjects, as a DocumentObject is allowed to be only in a single local coordinate system (GeoFeatureGrouip, Which App::Part is).

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Comment by easyw-fc 2017-03-25 16:02

as for this forum post
https://forum.freecadweb.org/viewtopic.php?f=22&t=21510
the option to make a simple copy of App::Part objects is becoming requested ...

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Comment by Kunda1 2017-06-24 11:18

Is this 'General' or should I move it to 'Part' category?

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Comment by Kunda1 2017-06-24 11:18

Changed from bug to feature

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Comment by Kunda1 2017-08-23 12:19

DeepSOIC do you mind weighing in?

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Comment by Kunda1 2017-09-13 12:29

easyw-fc do you mind updating this ticket illustrating it's status? Thanks!

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Comment by easyw-fc 2017-09-14 20:52

Kunda1
an other user case where a single copy of App::Part and Body would be useful
https://forum.freecadweb.org/viewtopic.php?f=3&t=24405&p=191408#p191408

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Comment by easyw-fc 2017-10-20 21:44

Kunda1
an other user case where this feature is required
https://forum.freecadweb.org/viewtopic.php?f=28&t=21541#p195863
I suspect that the more people will use FC0.17 to elaborate STEP files, the more this issue will raise its relevance.
Maurice

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Comment by Kunda1 2017-10-20 23:10

bumping to higher priority

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Comment by easyw-fc 2018-02-15 08:05

Kunda1
an other user case where this feature is required
https://forum.freecadweb.org/viewtopic.php?f=3&t=26914

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Comment by Kunda1 2018-02-15 12:10

wmayer may I make this an 0.18 target ?

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Comment by normandc 2018-02-17 19:10

Just FYI, [s]Draft Clone works on Part containers[/s], it may be suitable as a workaround. EDIT: while it works on a simple Part container, it will not work on a Part container that contains other containers.

In Steps to reproduce, step 2 is no longer required. The Part container is now global and available in all workbenches within the Structure toolbar.

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Comment by easyw-fc 2018-04-23 13:16

and another user case
https://forum.freecadweb.org/viewtopic.php?f=18&t=27537&p=229559#p229535

This is a function also useful for STL export and also for FEM meshing.

[adrianinsaval]

In current master it is actually possible to create all; a simple copy, a union or a compound of a part container (even nested).
Issue can be closed.

[luzpaz]

CC @easyw (OP)