Referencing an Object in relation to another

[Roy_043]

To move the door you should change the attachment of the underlying sketch.
Look at the first image in this contribution by @paullee:
https://forum.freecadweb.org/viewtopic. ... 60#p338087

In this case the Attachment offset Z value must be changed. This is because the door sketch is attached to a plane that is perpendicular to the wall sketch line.

[ckl6767]

Oupsss I got it... Sorry, to not have seen the answer.

However, not easy to understand which Alignment to choose, and the axis to manage to get the final expected position..
Once is "X", (for Door) another one is "Y" (for Window)

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Also, sometimes, the wall are not updated (Here below I just have modified the length [of the center] of the wall from 5 m to 6 m)

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To fix the issue, I had to modify a feature of the wall : width from 20 cm to 15 cm, then back to 20 cm..

CONCLUSION

I would say it is an "acceptable" workaround but still bugged, and the requested feature should be native to Arch & BIM.

home.FCStd

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[Roy_043]

You should be able to use the same alignment for all windows and doors.
Sometime you have to force a recompute: Select the the document node, right click and select "Mark to recompute" and click the Std Refresh button.

[ckl6767]

Sometime you have to force a recompute: Select the the document node, right click and select "Mark to recompute" and click the Std Refresh button.

Thanks for the trick !

[paullee]

Yes, pretty difficult to understand - I spend another hour to read MapMode / Attachment Mode again

[ckl6767]

Hello all,

Now working on: Version: 0.19.18831 (Git)

Finally I decided to use the following trick to position a window.
Using the OXY mapping of the "window sketch" to a "construction sketch" linked to the Wall

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Unfortunately I'm facing an issue.
Certainly due to "the internal freecad problem of topological naming"
Before to add the last window

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After adding the last window

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However, the approach seems interesting:
Using a "construction sketch" to setup the position of the windows.

The issue is clearly identified.
Before to add the last window "Face Number = 18" , after, "Face number = 22" !

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Have you any idea how I could fix this issue in a smart way

Thanks in advance

[Roy_043]

Try to map the construction sketches to the base sketch of the wall. Assuming that sketch is unlikely to change, that would be a better option.

[ckl6767]

Done.
Thanks to some pillars mapped to the base sketch, I could setup the "construction sketch"
And all is working well.

Thanks for your help

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[ckl6767]

Just a lttle question.
To create a pillar I use the "NormalToEdge" method, as shown in Video.

I could observe that according to the line,

• Once the pillar is created on the right , and for another line
• it is created on the left .

What makes this distinction
Orientation of the line

Is there a way to choose the side where we want to create the pillar?

I still have 2 pillars to position and I can not put them in the right place.
(Of course I could manage with these already pillars, but here it's really a question of understanding)

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thank you in advance
 

[Roy_043]

You are right: for NormalToEdge the direction of the edge is taken into account. The lines in the main Sketch are not all CW or CCW.
You can try using ThreePointsNormal instead.