parametric object does not use linked values
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parametric object does not use linked values
In the process of learning how to use FreeCad I created a "Part" and a "Spreadsheet" where I wrote some of the key "measures" I wanted to use as constraints. When I change the value in the spreadsheet the corresponding constraint does not change... unless I enter again to change its value and call on the expression (without change). When I press enter the new value appears. Obviously there is no point in making a parametric oject if the values do not update automatically when changed. So I suspect I did something wrong or unwillingly changed some critic preference. (I also pressed UPDATE on the sketch and recalculated the object).
My Part+Body is relatively complex with about a dozen Sketches and the spreadsheet contains 2/3 dozen values. I thought I could have reached a limit but it is unlikely and there is no error message.
Flavio
My Part+Body is relatively complex with about a dozen Sketches and the spreadsheet contains 2/3 dozen values. I thought I could have reached a limit but it is unlikely and there is no error message.
Flavio
- thomas-neemann
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Re: parametric object does not use linked values
Sometimes the recompute is delayed due to performance reasons. You can always trigger it manually with the recompute icon.
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
Re: parametric object does not use linked values
Thomas, here is the file https://drive.google.com/file/d/1pHnGrk ... sp=sharing
I made it a "general issue" picking a single constraint but as you can see the "recalculation" motor appear to be stopped for all the rest of the constraints. My ambition was to have a parametric polygon that could be "zoomed" as I have no idea of the final components that can fit inside it... the second part is the other half of the case.
The two following images show the specific constraint I was pin-pointing. I am an absolute beginner, sorry.
Tks.
Flavio
I made it a "general issue" picking a single constraint but as you can see the "recalculation" motor appear to be stopped for all the rest of the constraints. My ambition was to have a parametric polygon that could be "zoomed" as I have no idea of the final components that can fit inside it... the second part is the other half of the case.
The two following images show the specific constraint I was pin-pointing. I am an absolute beginner, sorry.
Tks.
Flavio
- Shalmeneser
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Re: parametric object does not use linked values
Green_ButtonStep_PAD is broken (sketch not closed) so any further computation is stopped.
https://wiki.freecadweb.org/Tree_view/en#Overlay_icons
https://wiki.freecadweb.org/Tree_view/en#Overlay_icons
- thomas-neemann
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Re: parametric object does not use linked values
when i open it in realthunder this message
says that a contour is not closed. I would check that if I were you
edit
Shalmeneser was faster
- thomas-neemann
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Re: parametric object does not use linked values
Thanks. It works. This is a very basic information I overlooked. Fundamental.
I was not aware because the sketch was fully constrained when I left it. The new issue appears to be that giving a parameter lenght there is no fixed versus and no addtional costraints are allowed... I mean (see following image) that the 3mm segment can go either side of the "wall". You cannot move it when fully constrained but apparently it was relocated. The sketch you pointed to had the 8mm segment reversed and disconnected. Given that it is a simple rectangle and that it happens twice I suspect a bug. To correct it I had to delete the segment and create it again in the right spot.
Giving a negative lenght would mean nothing. Is there a costraint that could avoid a perfectly legitimate mirror?
F
I was not aware because the sketch was fully constrained when I left it. The new issue appears to be that giving a parameter lenght there is no fixed versus and no addtional costraints are allowed... I mean (see following image) that the 3mm segment can go either side of the "wall". You cannot move it when fully constrained but apparently it was relocated. The sketch you pointed to had the 8mm segment reversed and disconnected. Given that it is a simple rectangle and that it happens twice I suspect a bug. To correct it I had to delete the segment and create it again in the right spot.
Giving a negative lenght would mean nothing. Is there a costraint that could avoid a perfectly legitimate mirror?
F
- thomas-neemann
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Re: parametric object does not use linked values
if a reference is to be reliable, i create it in draft. like here from min 0:27
https://www.youtube.com/watch?v=YV5TUqdZO20
Re: parametric object does not use linked values
Your advice should come with a warningthomas-neemann wrote: ↑Mon May 23, 2022 7:05 am ...if a reference is to be reliable, i create it in draft...
the author is biased and prejudiced against anything that is not created in Draft workbench