[Talk-GB] OS LandForm Panorama (contour data) parsing tools?

2010-08-12 Thread Nick Whitelegg 
Hi,

I'm interested (depending on how much work is involved - as I'm focusing on 
OpenTrailView at the moment), as I belive one or two others have done, in 
overlaying OS Landform Panorama contours and OSM footpaths on VectorMap 
District data.

To save effort, are there any open source scripts available for parsing the 
LandForm Panorama data out there? e.g. converting the DXF format into 
shapefiles, or populating a database?

Thanks,
Nick
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Re: [Talk-GB] OS LandForm Panorama (contour data) parsing tools?

2010-08-12 Thread Graham Jones 
I haven't tried to do it, but did wonder about having a go last weekend, but
in the end I used SRTM data, because there were ready made instructions to
do it.
Is the OSM data expected to be better than SRTM?   If so I might well have
another go

Graham.

On 12 August 2010 16:21, Thomas Wood grand.edgemas...@gmail.com wrote:

 I was experimenting a while ago. I believe I found that opensourced GIS
 could convert the DXF formats to various others.

 I think I played about a little with ogr2ogr (or whatever the vector part
 of that package is), Grass and QGis with varied results - my issue was more
 of not knowing what I wanted to do with the contour data more than anything
 else.

 Thomas


 On 08/12/10 16:15, Nick Whitelegg wrote:

 Hi,

 I'm interested (depending on how much work is involved - as I'm focusing
 on OpenTrailView at the moment), as I belive one or two others have done, in
 overlaying OS Landform Panorama contours and OSM footpaths on VectorMap
 District data.

 To save effort, are there any open source scripts available for parsing
 the LandForm Panorama data out there? e.g. converting the DXF format into
 shapefiles, or populating a database?

 Thanks,
 Nick


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-- 
Dr. Graham Jones
Hartlepool, UK
email: grahamjones...@gmail.com
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Re: [Talk-GB] OS LandForm Panorama (contour data) parsing tools?

2010-08-12 Thread Jon Burgess 
On Thu, 2010-08-12 at 16:15 +0100, Nick Whitelegg wrote:
 To save effort, are there any open source scripts available for
 parsing the LandForm Panorama data out there? e.g. converting the DXF
 format into shapefiles, or populating a database?

DXF is supported by the gdal (ogr) tools since version 1.7.0. The
contour information can be extracted into a shapefile by converting the
G8040201 layer:

$ ogr2ogr sy08.shp sy08.dxf -where Layer=G8040201

The resulting shapefile will be in OSGB projection like the rest of the
OS data. Information on the other available layers can be found in the
Landform Panorama user guide, linked from [1]. 

Jon

1: 
http://wiki.openstreetmap.org/wiki/Ordnance_Survey_Opendata#Land-Form_PANORAMA



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