Re: NEC-LIST: DXF CAD conversion to NEC input file

Greetings, NEC-LIST members ...

        DXF to NEC? ... well, not exactly. I have customised my
AutoCAD V12 as a model creation environment, writing NEC input files
directly from withing AutoCAD. - Well, almost - I do some post
processing with TurboPascal code to tidy up formatting and check for
zero length and duplicated wires, as well as setting the segmentation
and assign wire diameters. I found AutoLISP far to slow for much of
this processing.

        The merger of AutoCAD and NEC I called "AutoNEC", and I
describe it in the ACES 10th review Volume 2, pages 380 .. 387 (with
an error in Figure 1, I note!). It gives a reasonable description of
what I was doing then, and it hasn't changed too much since. I only
use it for generating big models, or for doing multiple runs (anything
up to 500 in a batch). I also use TurboPascal to write NEC input
files directly for multiple configurations of simple antennas (3000 in
one batch so far!!!), plus the batch files to look after the running
of such jobs.

        I see no major drama in converting .DXF to NEC, however if the
.DXF comes from AutoCAD, the above seems a simpler way. Let me know
if you want me to dig out the code.

Cheeeeeeeeeerz

Alan
**************************************
Alan Nott BEE, CEng, MIEE
Senior Technical Specialist Engineer
Electromagnetics Cell
Software and Systems Engineering Unit
Army Engineering Agency
Tel + 61 3 9319 5889
Fax + 61 3 9319 5909
email: alan.nott_at_aea.sptcomd.defence.gov.au
Received on Mon May 01 2000 - 04:18:47 EDT