File underlay problem

[Marialice Boschi]

I don't know if anyone has had this problem with Therm 7.7 but I can't do underlay with any file, it always gives me the same error, even if I try to insert a dxf file with a simple square drawn on cad.

[Diego Turazza]

Hi Marialice, from my experience you must save your dxf file in the eldest format available in your cad.  More over keep in mind to check the "autoconvert" flag. "Clean" In your dxf file from all objects: Only closed polylines must be present to be correctly converted into poligons within therm.
Hope it helps.
Regards
Diego

Il Sab 28 Dic 2024, 14:32 Marialice Boschi <marialic...@gmail.com> ha scritto:

I don't know if anyone has had this problem with Therm 7.7 but I can't do underlay with any file, it always gives me the same error, even if I try to insert a dxf file with a simple square drawn on cad.

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[Robin Mitchell]

See these Knowledge Base articles

https://windows.lbl.gov/underlays-autocad-versions-2000-and-newer

https://windows.lbl.gov/exporting-sections-or-parts-file-autocad-2000

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Robin Mitchell

Building Technology and Urban Systems Division
Energy Technologies Area
Lawrence Berkeley National Laboratory

[Juergen]

Hi, I have the same issue.

Working with Autocad LT, creating a drawing just with polilines (all the lines are deleted), saving as Autocad R12 . DXF, giving a simple file name without spaces or symbols.

Then in Therm when using underlay, there is always the error message "can't open file".

How to solve this? It is frustrating. 

Thanks

[Robin Mitchell]

Can you provide a dxf file you are trying to to use?

Also, what version of THERM are you using?

Robin

Robin Mitchell

Building Technology and Urban Systems Division
Energy Technologies Area
Lawrence Berkeley National Laboratory

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[Zugur Rakhmanov]

Hi Juergen,

This issue usually appears if the dxf file is opened (in AutoCAD).

Kind regards,

Zugur

Чт, 19 июня 2025 г. в 18:27, Juergen <juergen.d...@gmail.com>:

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[Robin Mitchell]

Zugar, 

Thank you so much for your quick reply, which seems to have solved the issue.

I will add a topic about this on our Knowledge Base.

I am so grateful to you and others who offer such amazing knowledge and support to other users.

It is amazing and wonderful!

Robin

Robin Mitchell

Building Technology and Urban Systems Division
Energy Technologies Area
Lawrence Berkeley National Laboratory

To view this discussion visit https://groups.google.com/d/msgid/LBNL-THERM/CAHkBh3-_-eNG-Lib_rooE03mKkuevo457VQPgZ7perb5mf3qgA%40mail.gmail.com.