[QGIS-Developer] GDAL and microstation dgn v8 files... Teiga ?

[Even Rouault]

On mercredi 3 avril 2019 11:32:52 CEST Richard Duivenvoorde wrote:
> Hi,
> 
> Here in NL a lot of municipalities still work with Microstation, so
> dgn-files are a common format to use.
> 
> FME is capable of converting dgn to whatever format.
> 
> But we just found that gdal also has a dngv8 driver [0], but it needs to
> be build against the Teiga driver.
> QGIS can import autocat dwg/dxf files, I forgot what lib was used for that.
> 
> Anybody experience with building GDAL with Teiga?

For Linux, use the following switches for configure:

  --with-teigha=path Include Teigha DWG/DGN support
  --with-teigha-plt=platform Teigha platform

Like:
--with-teigha=$HOME/Teigha_lnxX64_5.3dll --with-teigha-plt=lnxX64_5.3dll

For Windows, locate the TD_ variables in nmake.opt and tweak them.

> 
> BUT: want/could we use this to create a QGIS which is capable of loading
> dgn or importing files?

Sure, that works (except automatic styling) if you use a GDAL with Teigha 
support

> Or is there an licensing or technical problem?

No technical problem per se. Regarding licensing, Teigha is of course 
proprietary. I don't recall the terms, but I guess QGIS.org or any other 
distributing entitee would have to pay a fee to be able to redistribute a 
plugin using their SDK.

Even

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