[Talk-GB] OS VectorMap District with LandForm Panorama contours overlay

[Luke Smith]

Hi Phil,

What did you use for the 3D render? I keep meaning to look properly at 
setting up a WebGL map with the Landform Panorama data.

In terms of tracks, I tried to go for as broad a definition as possible, 
so anything picked out by:
     WHERE ( "highway" IN ( 
'path','cycleway','footway','bridleway','byway','steps' ) AND ("access" 
IS NULL OR "access" != 'no') )

Tracks are picked up on a different layer, above paths and below the 
VectorMap roads.

Then I'm just using styling rules for bridleways, private paths and 
steps, everything else being a normal path. Having just looked at 
http://www.cyclestreets.net/journey/help/osmconversion/ I'm probably 
missing a few as well, with more obscure tags like 
designation=byway_open_to_all_traffic and designation=restricted_byway.

The maps I've put together aren't using the VectorMap raster, so I have 
the roads rendered above the paths - otherwise I'm sure things would be 
all over the place.

"Ben Nevis" etc is indeed coming from Strategi's selection of major 
mountains and mountain ranges (got a few problems with accents there I 
see). It's not great, but VectorMap District hopelessly misses out the 
major hills altogether. The 50K gazetteer has them in, but far too many 
points aren't categorised. Hopefully fixed in the next version. Text for 
water features is a complete disaster in VectorMap, with the locations 
being massively out and the text sizes being inconsistent, with many 
rivers set to the same style as the North Sea etc.

I had a meeting with OS on Thursday, where they seemed to think the 1st 
April would see the next release of VectorMap District. I'm going to 
render the whole country in the mean time (will take a few days) and 
work out what all the problems are, then see what's fixed in April.

Cheers,
Luke

On 13/03/2011 14:44, Phil Endecott wrote:
> Hi Nick & Luke,
>
> Luke Smith wrote:
>> Funnily enough I've been working on something similar now for a 
>> while. It's not perfect and needs a bit more work, but I've uploaded 
>> a couple of tiles (one London, the other Ben Nevis).
>>
>> http://www.grough.co.uk/lib/documents/tmp/lss/nn17.jpg
>> http://www.grough.co.uk/lib/documents/tmp/lss/tq28.jpg
>>
>> That's been put together using a mixture of OS StreetView 
>> (buildings), OS VectorMap District (roads, forests, water, crags), OS 
>> Landform Panorama (contours, relief), OS BoundaryLine (civil parish 
>> names), OS Strategi (national park boundaries, mountain range names) 
>> and OpenStreetMap (point names, footpaths, parks, schools etc).
>
> Here are some of mine:
>
>     http://chezphil.org/tmp/vectormap/lakes_small.jpeg
>     http://chezphil.org/tmp/vectormap/borrowdale.jpeg
>     http://chezphil.org/tmp/vectormap/3dlakes.jpeg
>
> What tags are you each using to extract OSM footpaths, tracks etc?
>
> When I tried to do this, I found it difficult to get right: if you 
> include too much you end up overlaying e.g. tracks on top of things 
> that are shown on the OS data, and if you include less you miss 
> things.  For example, Luke, I notice that you have tracks near the 
> Fort William distillery that I don't have.  Last time I used something 
> like this (PSEUDO-CODE):
>
>     if (highway=="track") {
>       path_type += track;
>     }
>     if (highway=="bridleway" || horse=="yes" || 
> designation=="public_bridleway"
>         || highway=="cycleway") {
>       path_type += bridleway;
>     } else if (highway=="footway" || foot=="yes" || 
> designation=="public_footpath") {
>       path_type += footpath;
>     } else if (horse=="permissive") {
>       path_type += permissive_bridleway;
>     } else if (foot=="permissive") {
>       path_type += permissive_footpath;
>     } else if (highway=="path") {
>       path_type += path;
>     }
>
> Luke, do the "BEN NEVIS" and "AONACH MOR" labels come from Strategi?  
> I've not looked at that.  Bizarrely, the VectorMap data doesn't seem 
> to have the name "Ben Nevis" at all; many other large mountains are 
> also missing or mis-placed and too small.  I am hoping that this sort 
> of thing will be fixed in their next release (when will that be?), but 
> if not, maybe using the Strategi data is one possibility.
>
>
> Cheers,  Phil.
>
>
>
>
>
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