Actually, I'm going to continue using my parser for now. It looks like
there are still some bugs in the ogr2ogr importer with respect to closing
polys with curves.
Here's an image showing some of the polys being closed with linear segments
instead of bezier.
http://dl.dropbox.com/u/29968727/Screenshot-Quantum%20GIS%201.7.0-Wroclaw.png
I had this exact same issue with my parser for a while, I'll look at the ogr
importer to see if I can submit a fix.
This image shows a different issue, which I have not seen with my parser.
http://dl.dropbox.com/u/29968727/Screenshot-Quantum%20GIS%201.7.0-Wroclaw-1.png
The poly holes should be circular, and it looks like there's an extra line
being added. Not sure if this is something similar to the above or not.
Another reason we may wish to stay with my parser is that it offers a bit
more flexibility. I plan on allowing options to set how many segments to
break curves into, (and possibly using more segments for curvier sections
than straighter sections) to try to optimize for the number of polys. I
didn't see any way to pass parameters to the ogr2ogr importer
Pete
On Mon, Sep 5, 2011 at 8:32 AM, Peter Sadrozinski <psadrozin...@gmail.com>wrote:
> Sigh, it's true. I became aware of the OGR frontend just as the parser was
> being completed :( Nothing like a good programming exercise to become
> familiar with the code, though, so all is not lost.
> I will refocus my efforts to use ogr shapefiles instead of my custom data
> structures internally. As mentioned, we still need to generate the airport
> area holes, and the .btg file for the airport itself. I noticed some GRASS
> modules being added to terragear-cs a few months ago, and what looked like a
> skeleton for a btg file exporter. Is anyone actively working on this? If
> not, I can continue down that path.
>
> I see qgis can only use grass modules "if QGIS was started from a GRASS
> shell or if a GRASS mapset was opened from QGIS". Otherwise, we will need
> both a grass module and a qgis plug-in. I imagine both will be able to
> share most of the code.
>
> I'd really like to be able to add something of use to the project, as I
> really enjoy flightgear. In the past couple of years, there have been so
> many new improvements to so many systems, yet the scenery / terrain still
> seems to get the least attention (no fault on any of the developers, I just
> think it's the most intimidating piece of the project) A one step at a time
> approach is certainly necessary, and the 8.50 airport format looked like the
> most achievable target.
>
> Feel free to ping me on any item you feel is needed, but don't have time
> for. I can generally dedicate ~8-10 hours a week (especially heading into
> winter)
>
> Pete
>
>
> On Sun, Sep 4, 2011 at 6:20 PM, Martin Spott <martin.sp...@mgras.net>wrote:
>
>> HB-GRAL wrote:
>>
>> > To get XPlane gpl airport data into a postgres/postgis database as ESRI
>> > shapes you can use the ogr2ogr gdal plugin written by Robin Peel [...]
>>
>> s/Robin Peel/Even Rouault/
>>
>> I know because we've been exchanging a couple of EMails over the past
>> three
>> years while chasing a few bugs in his implementation ;-)
>>
>> BTW, I'm really wondering why this forum user "Psadro" decided to invent
>> his
>> own v8.50 apt.dat-parser because, according to his explanations, he's
>> doing
>> exactly what's already implemented in the corresponding OGR-frontend.
>>
>> Cheers,
>> Martin.
>> --
>> Unix _IS_ user friendly - it's just selective about who its friends are !
>> --------------------------------------------------------------------------
>>
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>
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