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by JOE_FU
Sat Feb 22, 2020 1:16 pm
Forum: Help on using FreeCAD
Topic: Fuse and makeCompound
Replies: 2
Views: 47

Fuse and makeCompound

Is there any difference between using fuse function and makeCompound function to combine multiple models? Is it possible to replace the model obtained by fuse with the model obtained by makeCompound?
by JOE_FU
Thu Jan 16, 2020 7:51 am
Forum: Help on using FreeCAD
Topic: How to turn mesh shape to topoShape?
Replies: 3
Views: 143

Re: How to turn mesh shape to topoShape?

Hi,everyone. I always get a mesh obj, when I insert a model in obj format.But I want to turn this object to a topoShape, which can be used in Part workbench.How can I do it? In the process of converting mesh to Part, I encountered new troubles. Some obj model files are very slow in the process of c...
by JOE_FU
Fri Jan 10, 2020 2:35 pm
Forum: Developers corner
Topic: Failed to form faces through wires!
Replies: 1
Views: 110

Failed to form faces through wires!

Hi. I encountered a problem when I used the makeFace function. I guess it's because there are intersections in my wire. Picture of Wire is shown below. Is there a way to form a face? points: points=[Vector (0.036, 0.0, 0.0), Vector (0.036, 0.0, 0.075), Vector (0.022, 0.0, 0.086), Vector (0.022, 0.0,...
by JOE_FU
Mon Dec 16, 2019 12:11 pm
Forum: Help on using FreeCAD
Topic: How to turn mesh shape to topoShape?
Replies: 3
Views: 143

How to turn mesh shape to topoShape?

Hi,everyone.
I always get a mesh obj, when I insert a model in obj format.But I want to turn this object to a topoShape, which can be used in Part workbench.How can I do it?
by JOE_FU
Sat Sep 21, 2019 9:36 am
Forum: Developers corner
Topic: How to add other properties ,such as frequency ?
Replies: 4
Views: 442

Re: How to add other properties, such as frequency ?

PropertyQuantity will be your friend for now. In your feature class you can define the unit to be 1/s, i.e. Unit(0,0,-1,0,0,0,0,0). I looked quickly through the relevant classes and nowhere frequency is explicitly handled which is quite amazing as this is a relevant physical quantity. So, I think i...
by JOE_FU
Fri Sep 20, 2019 11:21 am
Forum: Developers corner
Topic: How to add other properties ,such as frequency ?
Replies: 4
Views: 442

How to add other properties ,such as frequency ?

I found that there are a lot of properties ,which we can use in FreeCAD,for exanple App ::PropertyFloat, App ::PropertyPrecision,App ::PropertyAngle, App ::PropertySpeed and so on. Now I want to add frequency in my FreeCAD. It's not clear for me about it.Maybe it is related to files such as Quantity...
by JOE_FU
Wed Sep 04, 2019 7:04 am
Forum: Developers corner
Topic: Problem about define custom parametric variable.
Replies: 0
Views: 237

Problem about define custom parametric variable.

Hi,guys. Nowadays,I want to define my custom parametric variables, which are used for modeling. I just found that we can defined custom variables by using something like Spreadsheet. But it is not what I want because when I define a variable like A1=12, then I should use it by inputing the expressio...
by JOE_FU
Sat Aug 24, 2019 1:54 am
Forum: Developers corner
Topic: Multi-threaded execution Cross-section
Replies: 11
Views: 779

Re: Multi-threaded execution Cross-section

BRepAlgoAPI_Section I would say. So, I have not personally tinkered with this, but per the documentation of BOPAlgo_Options (for OCCT 7.3.0), it does appear that there are allowances for running this operation in a multi-threaded application. This is a wild guess, but I'd imagine you'd do something...
by JOE_FU
Sat Aug 24, 2019 1:49 am
Forum: Developers corner
Topic: Multi-threaded execution Cross-section
Replies: 11
Views: 779

Re: Multi-threaded execution Cross-section

Qt doesn't allow to create or modify any widgets or other GUI stuff from within worker threads, hence the error: QPixmap:It is not safe to use pixmaps outside the GUI thead Furthermore the FreeCAD document model isn't thread-safe either. So calling methods like addObject from worker threads are not...
by JOE_FU
Fri Aug 23, 2019 1:16 pm
Forum: Developers corner
Topic: Multi-threaded execution Cross-section
Replies: 11
Views: 779

Re: Multi-threaded execution Cross-section

And... Is there any question or request for help? Or just a statement? In case you need some clue, ATM I doubt that Shape is a writable property. Yeah,I need your help. I just want to increase the clipping speed by using multi-threaded. But I failed. And the error message is "QPixmap:It is not safe...

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