Drawing from dxf file doesn't appear correctly in Therm

[Nadia]

Hello!

I want to use an AutoCAD drawing in Therm as underlay. I followed the instructions from the article at the website about preparing the dxf file (deleting hatches and other unnecessary parts, exploding as many times as needed etc.) and I was able to import the file.

However the drawing doesn't appear correctly in Therm:

- Parts of the drawing that I deleted in AutoCAD still appear in Therm

- Many lines and circles appear, which don't belong to the drawing

- A part of the drawing appears far away from the rest.

What could be the problem?

Thanks a lot in advance!

Nadia

[Nadia]

 

By the way I am using the Version Therm 7.4.3

[Michele]

Hi Nadia,

it happened to me as well, but then I realized I had some hidden layers in the CAD. Did you check if you have any? My suggestion is that you freeze all the layers that you don't need, then copy the drawing and save it in a new file. Try to use only one layer

Cheers,

Michele

[Robin Mitchell/LBNL]

Nadia

I am not an expert in AutoCAD so I had a colleague here look at your file. Here were his suggestions, as well as a file that he cleaned up that displays properly in THERM.

******

"Messy" DXF file are fairly common -- they often have a bunch of lines in them that the user doesn't realize are there. I've done my best to guess what the actual frame/glazing is and I've attached a cleaned file that works fine. My recommendations for the user - and for adding to the instructions on the website if they aren't there already:

1. Turn off all non-glazing related layers. 
2. Not required but strongly recommended is to delete all lines not associated with the frame or glazing (ex. hidden lines, projection lines, wall lines, etc). In general we only want to import lines that will be used for snapping to while drawing the Therm geometry.
3. Not required but also recommended is to adjust the drawing so it is how the geometry will be drawn in Therm. A common issue is seals that are drawn overlapping frame components in the dxf file. This won't cause problems importing but will make it more difficult to make the Therm geometry.
4. Make sure all lines are continuous solid lines. No center lines, hidden lines, etc.
5. Once the user is happy with the drawing they should select the lines they want to import (and only the lines they would like to import) and copy and paste them into a new file. Then save that file and use it as the underlay. 

Robin

[Marles McDonald]

One other trick that sometimes works particularly for unwanted perspective lines is to uncheck trace and/or solids under the DXF filter when importing the file. If you import the file and find a lot of unwanted lines this can be done after you import the file.

On Wednesday, April 5, 2017 at 3:16:57 AM UTC-7, Nadia wrote: