[Radiance-general] Re:Re: Problems with CAD/dxf Import

[Thomas Bleicher]

On 05.02.2006, at 18:43, Christian Fusenig wrote:

> Thank you Thomas,
>
> i understand your suggestions and the procedure worked for an .dxf  
> file i grabbed from the internet. It was a luminaire file from ERCO  
> Lighting. I defined different layers and named them. The dxf2rad  
> worked fine and i ended up with my desired modifiers.
> But the files i got from this company didn't work! I opened them in  
> Autocad 2005 and it said something that they were created with 'Pro  
> Lignum 3D'. I can work with the file in Autocad but when i save it  
> as .dxf then the dxf2rad converter messes it up. I get an empty  
> file like that:
> ## Radiance geometry file "Video_Monitor.rad"
> ## Converted by dxf2rad 0.9: Sun Feb 05 18:33:59 2006
> ## C:\cygwin\opt\ray\bin\dxf2rad.exe Video_Monitor.dxf  
> Video_Monitor.rad
>
>
> ## End of Radiance geometry file "Video_Monitor.rad"

I had a quick look at the ProLignum product description and it
seems to be a highly parametrical software. To store this type of
information in a DXF file you have to use other data types than
simple geometry primitives. Unfortunately you can store information
in a DXF file that not every DXF reader (or even an older AutoCAD
version) can understand. I believe ProLignum makes heavy use of
that and dxf2rad can't find anything it could use.

You should ask the producer (http://www.kiwisoft.de/) about the
best way to get polygon data from their files. They may have a
converter or can tell you what to do in AutoCAD about this problem.

> I have no web space to post this .dwg  file to and i guess to send  
> the file to this list is a bad idea. Maybe i can send it to you and  
> you can open it and see whats wrong. I have to ask this company if  
> i can give these files away but maybe we can make a deal. ;-)

Hold it! I don't even have a version of AutoCAD around. I only
have IntelliCad on my system which does not work with ARX
applications (ProLignum is one). So I may not even be able to
open your files.

Thomas