Import dxf with autoconvert

[Alessandro Marzi]

Hello,

I'm using Therm 7.5 and I have trouble in importing dxf files made of close polylines.

I'd like to use the autoconvert to directly get polygons, but after the operation no elements appear.

So I'm obliged to draw everything by hand.

Anybody knows how to solve the problem?

Thank you very much for your tips.

Alessandro Marzi

[Sergio F.]

Try to use vs 7.4
It works good with dxf file

[yal...@gmail.com]

Without knowing much detail of the dxf file it is hard to give a definitve answer. But some tips And things I generally check for are:

- explode blocks.
- make sure there is no Z dimension. Even polylines can have one vertex with Z coordinate.
- confirm polylines are actually closed with the PEDIT>Close command.
- no splines in the polylines.

Yalin

[Robin Mitchell]

THERM 7.5 and 7.6 should also be able to import DXF files as in THERM 7.4. We did not change any of that code when moving to these later versions. 

If there are issues importing DXFs into 7.5 or 7.6 (using all the techniques listed by the users here, which are all good), please let me know.

Robin 

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Robin Mitchell
Building Technology and Urban Systems Department
Environmental Energy Technologies Division
Lawrence Berkeley National Laboratory

[Robin Mitchell/LBNL]

Also, it is necessary to save the DXF file in either AutoCAD12 or AutoCAD13 DXF format files. See this Knowledge Base article

https://windows.lbl.gov/tools/knowledge-base/articles/underlays-autocad

Robin

[Enrica]

Hello, I tried several times and can't manage to set the boundary conditions because of overlapping polygons or something to do with the geometry, which I actually double checked and redrew seveal times. 

Could it be the Windows version I am using? I have windows 7 professional N, and I tried Therm 7.4 and Therm 7.5 unsuccessfully.

Thanks for helping me, I really need to get through this.

Enrica 

[Robin Mitchell]

Can you email me the file and let me take a look? I don't think it's an issue with your operating system.

Robin (RDMit...@lbl.gov)

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[eaik...@gmail.com]

Hi Robin, is there a way to draw boundary conditions in autoCAD and then import those into Therm as a DXF file along with closed polylines?

Much appreciated,

Aik

On Thursday, November 30, 2017 at 1:24:29 PM UTC-8, Robin Mitchell/LBNL wrote:

Can you email me the file and let me take a look? I don't think it's an issue with your operating system.

Robin (RDMit...@lbl.gov)

On Thu, Nov 30, 2017 at 7:36 AM, Enrica <e.testi.a...@gmail.com> wrote:

Hello, I tried several times and can't manage to set the boundary conditions because of overlapping polygons or something to do with the geometry, which I actually double checked and redrew seveal times. 

Could it be the Windows version I am using? I have windows 7 professional N, and I tried Therm 7.4 and Therm 7.5 unsuccessfully.

Thanks for helping me, I really need to get through this.

Enrica 

Il giorno domenica 26 novembre 2017 11:53:25 UTC+1, Alessandro Marzi ha scritto:

Hello,

I'm using Therm 7.5 and I have trouble in importing dxf files made of close polylines.

I'd like to use the autoconvert to directly get polygons, but after the operation no elements appear.

So I'm obliged to draw everything by hand.

Anybody knows how to solve the problem?

Thank you very much for your tips.

Alessandro Marzi

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[Robin Mitchell]

No there isn't.

Robin

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