Re: howto docs + OpenStreetMap road data -> TerraGear

> > I had my own set of notes I was developing (probably located in the
> > root terragear source dir?)  I would need to go searching to refresh
> > my  memory.  That might help with some of the specifics.  The
> > existing  tutorials give a good broad overview of the process, but
> > are beginning  to get dated in terms of the specific details.
> 
> Well, as promised to all the people I've bugged for help, now that I
> can successfully build scenery, I wrote up my notes on all the things
> I had to do to get there, beyond what the CVS copy of the docs say.
> In other words, my writeup indicates where the docs were incorrect or
> came up short, and notes possible pitfalls.  So it's sort of like
> commentary in the margins of David Megginson's docs.  I put it up on
> the Wiki just this evening.
> 
> http://www.seedwiki.com/wiki/flight_gear/flight_gear.cfm
> (and click on TerraGear HOWTO)
> or
> http://www.seedwiki.com/wiki/flight_gear/terragear_howto?save=true&pname=TerraGear%20HOWTO&purlname=terragear_howto&wname=flight_gear
> to get there directly.



what are the chances of getting this fixed in CVS in the first place and
linking that HEAD file to the terragear.org webpage?

 -=-=-

Perhaps of interest to the list: I have written an import filter to load
the OpenStreetMap.org dataset into GRASS GIS 6.1-cvs (grass.ibiblio.org).
From GRASS you can export the data as a Shapefile for use with
TerraGear.

see  http://hamish.bowman.googlepages.com/gpsdrivefiles

Currently work is underway to load the US Census Bureau's TIGER dataset
into OSM. This provides about as good vector road maps for the USA as
exist. The OSM format is a bit clunky so if you are interested in using
the TIGER data it is probably more reasonable to load into GRASS with
v.in.ogr (see the  http://www.gdal.org/ogr  formats page), crop the data
to your 1 degree SRTM tile of interest with g.region, v.in.region, and
v.select, select only major roads with v.extract, and export as
shapefile with v.out.ogr.

While you are there you might want to grab some LANDSAT imagery of your
town to add to the mix, for this use the r.in.wms or r.in.onearth modules.
(r.in.onearth can be found on the GRASS wiki add-ons page; it's easier)
Or if you want a preview use one of those scripts to grab the SRTM data
directly and visualize with the incuded NVIZ 3D renderer.
</plug>


happy mapping,
Hamish

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