Hi,
I made some really good progress last week and got a map together for the 
Crowsnest Pass. Unfortunately for the area I chose with a fair number of 
contours the map redraw was quite slow. I have worked out how to graduate the 
contours so more appear as the user zooms in, I'll have to wait to see if this 
speeds up rendering.

I was thinking that the render might be quicker if I used a series of smaller 
maps. I used osmosis to split the '.osm' file into smaller tiles. However this 
was not putting any 'bound box' line into the file and mkgmap was therefore not 
cropping the tile neatly, instead it was including the ways which overhung the 
edge of the bounding box. Should this be the case, or am I mis-understanding?


General questions about garmin maps.

1). The '--gmapsupp' option makes compress archives. Can multiple of these be 
loaded at the same time, or does the user have to have access to the individual 
map files if they want to load more than just my map?

2). What is the purpose of the tdb-files ('--tdbfile' option)? I have never 
used mapsource....

Thanks,
Simon.

On Thu, 21 Aug 2008 08:14:52 +0100
Steve Ratcliffe <[EMAIL PROTECTED]> wrote:

> 
> If you have an element like the following at the start of the .osm file:
> 
>       <bound box='-115,49.25,-114,49.75'/>
> 
> then it should clip the .img file to exactly those bounds including both
> line and polygon features.  The 'bound' element is included by osmosis, but I
> didn't realise that it wasn't used everywhere, so we probably need to
> add another way of setting the bbox too.  But anyway the code is there to do
> it.  See http://www.mkgmap.org.uk/page/6 for an example of how it looks.
> 
> ..Steve
> 
> _______________________________________________
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