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FS#661 - Add support for the DGN format

Attached to Project: QCAD
Opened by Andrew (andrew) - Wednesday, 01 August 2012, 22:00 GMT+2
Last edited by Andrew (andrew) - Thursday, 18 April 2013, 14:24 GMT+2
Task Type Feature Request
Category QCAD (main)
Status Assigned   Reopened
Assigned To Andrew (andrew)
Operating System All
Severity Low
Priority Normal
Reported Version 3.0.0
Due in Version Undecided
Due Date Undecided
Percent Complete 0%
Votes 1
Private No


See OpenDesign news:
“ODA consolidates support for .dgn and .dwg file formats in Teigha”

This task depends upon

Comment by -- (clive) - Thursday, 02 August 2012, 11:50 GMT+2

This is very interesting news,the majority of staff and students work with Microstation for their designs etc. before bringing them to me for laser cutting and so on - so to add support in QCAD for the .dgn format could prove to be quite useful.

Comment by -- (clive) - Thursday, 02 August 2012, 11:52 GMT+2

How long would something like this take to implement?

Comment by Andrew (andrew) - Thursday, 02 August 2012, 16:31 GMT+2

I need to look at the new OpenDesign library version first. In the best case, DGN import is identical to DWG import, in the worst, it requires some data conversion for entity data, layer data, etc. All I've seen so far is a press release.

Comment by -- (clive) - Thursday, 02 August 2012, 16:58 GMT+2

Thanks - It will interesting to see how things pan out with this.

Comment by Andrew (andrew) - Wednesday, 08 August 2012, 16:06 GMT+2

I've managed to import my first DGN file into QCAD 3.

Clive: do you happen to have any real-life DGN files I could use for testing? They are much harder to come by than DWG/DXF files... Thanks!

Comment by -- (clive) - Friday, 10 August 2012, 13:28 GMT+2

See attached - a couple of .dgn files and a couple of snap shots of what they should look like.
Hope this helps.

Comment by -- (clive) - Friday, 10 August 2012, 13:31 GMT+2

.dgn file -Drawing 1 test

Comment by -- (clive) - Friday, 10 August 2012, 13:33 GMT+2

hmmm -its not letting me upload the .dgn files here, I`ll try and send them via a pm on the forum.

Comment by -- (clive) - Friday, 10 August 2012, 14:01 GMT+2

lets try a zipped file instead!

   Samples.zip (216.7 KiB)
Comment by -- (clive) - Friday, 10 August 2012, 14:04 GMT+2

Thats got it ;) - I think the extension .dgn is the problem here.

Comment by -- (clive) - Friday, 10 August 2012, 14:24 GMT+2

Same samples but hopefully unprotected, so you test for editing etc...

Comment by Andrew (andrew) - Friday, 10 August 2012, 16:54 GMT+2

Thanks. The import is not perfect, but I didn't expect that either. It looks good enough to be included in the next QCAD 3.x release.

Comment by -- (clive) - Friday, 10 August 2012, 17:16 GMT+2

Not bad at all, please put me on the list for the next release testing.

Talking about releases - please take a look at the latest post here regarding CamExpert:

Comment by Andrew (andrew) - Thursday, 18 April 2013, 14:25 GMT+2

DGN import has been disabled for now since it crashes with the new Teigha 3.8.2 release.