Part Geometry Extensions

[Kunda1]

Yesterday my computer crashed and it will take me some more time to set-up an alternative.

Bummer!

[easyw-fc]

First, let's wait to the Geometry Extensions be merged.

Hi @abdullah which is the minimum FC release to test your merged geometry extensions?
I have checked with FC 019.17352 but it seems it has been merged later ...

[wmayer]

I have checked with FC 019.17352 but it seems it has been merged later ...

You need something like FC 019.17404 or FC 019.17405.

[easyw-fc]

I have checked with FC 019.17352 but it seems it has been merged later ...

You need something like FC 019.17404 or FC 019.17405.

Thx!

[easyw-fc]

I think I have finished the development. It won't be merged before v0.19. If you want to try it you may download the PR below.

Hi @abdullah
I've tested some coding in using your Geometry Extension.

Would it be possible to display and edit extension through the Gui, inside the sketcher?

i.e. I would like to create a sketch organized by a different extension label assigned to internal geo sections...
It would be nice if it would be possible to display extension value assigned to a geo (i.e. like it is done for Elements Extended naming) and edit its value(s) inside the Sketcher editing tool...

[abdullah]

Yesterday my computer crashed and it will take me some more time to set-up an alternative.

Sorry for your loss! and thanks for the merge... it was a nice surprise

[abdullah]

I think I have finished the development. It won't be merged before v0.19. If you want to try it you may download the PR below.

Hi @abdullah
I've tested some coding in using your Geometry Extension.

Would it be possible to display and edit extension through the Gui, inside the sketcher?

i.e. I would like to create a sketch organized by a different extension label assigned to internal geo sections...
It would be nice if it would be possible to display extension value assigned to a geo (i.e. like it is done for Elements Extended naming) and edit its value(s) inside the Sketcher editing tool...

Possible, it is.

In my mind, extensions were intended for power users. The idea for "editing" custom extensions by the user, python console aside, was creating custom controls (macros). However, I see different possibilities, ranging from property editors to show/edit (read-only / read-write), to adding only information for core sketcher extensions (like the ID). The thing is that after a request to see the id, one to show "that string label I have put will likely follow".

I think it is something to look into, but I would rather first see how this is being used. The extensions mechanism is very generic and flexible, but it is not really being taken advantage from yet. The core extensions defined for the sketcher are still "just there", not actually being used by the Sketcher yet.

Currently I am mostly reading books to improve my skills, as I am mobile without access to my computer. I might get access to an old laptop next week, but I am not sure how fast it will compile. Maybe you could create a ticket to look into this later on.

[paullee]

Hi, testing further and find with following steps, FC crash :-

1. Make a Sketch, draw a rectangle e.g.
2. run below code
3. FC CRASH

Code: Select all

>>> sg0=s.Geometry[0]

>>> sg0.setExtension(Part.GeometryStringExtension("300","width"))
>>> sg0.getExtensions()
[<GeometryStringExtension ('width', 300) >]

>> sg0.setExtension(Part.GeometryStringExtension("2800","height"))
>>> sg0.getExtensions()
[<GeometryStringExtension ('width', 300) >, <GeometryStringExtension ('height', 2800) >]

>>> sg0.setExtension(Part.GeometryStringExtension("200","width"))
CRASH

FreeCAD_0.19-17445-Linux-Conda_Py3Qt5_glibc2.12-x86_64.AppImage
on
Fedora30

Screenshot from 2019-07-28 02-43-13.png (132.78 KiB) Viewed 334 times

[paullee]

Oh, further test:-

1. Created the Sketch in post above, and set all the extension and save the file before crash
2. Close and re-open the file
3. Run getExentions(), but all information set is not found ?
   

   Code: Select all

   Gui.ActiveDocument=Gui.getDocument("Test__GeometryExtension__Sketcher__1")
   >>> s=Gui.Selection.getSelection()[0]
   >>> sg0=s.Geometry[0]
   >>> sg0.getExtensions()
   []

Anything missing?

[paullee]

Same as of:-

FreeCAD_0.19-17499-Linux-Conda_Py3Qt5_glibc2.12-x86_64.AppImage