Re: [OSM-talk] OSM on Garmin - raster tiles?

2009-01-08 Thread Gervase Markham
Dermot McNally wrote:
 2009/1/6 Gervase Markham gerv-gm...@gerv.net:
 
 But it's still fairly ugly :-)
 
 As ugly as upside-down labels? To avoid those (if you will allow track
 up mode)

I'm quite happy to have north up, just like I get in my web browser :-)

Gerv


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Re: [OSM-talk] OSM on Garmin - raster tiles?

2009-01-07 Thread Dermot McNally
2009/1/6 Gervase Markham gerv-gm...@gerv.net:

 But it's still fairly ugly :-)

As ugly as upside-down labels? To avoid those (if you will allow track
up mode) you'd have to have a combination raster and vector mode,
which would in turn require a label-free raster map.

Dermot

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Re: [OSM-talk] OSM on Garmin - raster tiles?

2009-01-07 Thread Igor Brejc
BTW if you mean ugly as in ugly icons, you can create your own by defining
a TYP file. Just don't expect too much from a 24x24 bitmap

Igor

On Tue, Jan 6, 2009 at 11:05 PM, Gervase Markham gerv-gm...@gerv.netwrote:

 Igor Brejc wrote:
  What kind of a problem are you having with POIs? What do you mean by
  useful? I'm wondering because I'm working right now on POIs for
  GroundTruth.

 Actually, it's not as bad as I thought. They didn't show on the zoom
 level I was using, and some I expected to be there aren't actually in
 the data yet.

 But it's still fairly ugly :-)

 Gerv


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Re: [OSM-talk] OSM on Garmin - raster tiles?

2009-01-06 Thread Thomas Wood
A quick google came up with this:
http://freegeographytools.com/2008/converting-raster-maps-to-garmin-vector-format-with-bmap2mp

I had previously heard of Moagu, as noted in that article, but strayed
away from it due to being somewhat unfree.

2009/1/6 Gervase Markham gerv-gm...@gerv.net:
 When I heard about the possibility of OSM on Garmin, I imagined
 something like the Mapnik Slippy Map on my GPS screen. Now I have a
 Legend HCx, it turns out that I get the Garmin vector rendering with OSM
 data behind it. This is clearly much better than nothing, but does the
 gmapsupp.img format support stuffing in a load of raster tiles, or is it
 vector data only? (Obviously, you'd lose the ability to route with raster.)

 Gerv


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Re: [OSM-talk] OSM on Garmin - raster tiles?

2009-01-06 Thread Karl Newman
On Tue, Jan 6, 2009 at 9:34 AM, Gervase Markham gerv-gm...@gerv.net wrote:

 When I heard about the possibility of OSM on Garmin, I imagined
 something like the Mapnik Slippy Map on my GPS screen. Now I have a
 Legend HCx, it turns out that I get the Garmin vector rendering with OSM
 data behind it. This is clearly much better than nothing, but does the
 gmapsupp.img format support stuffing in a load of raster tiles, or is it
 vector data only? (Obviously, you'd lose the ability to route with raster.)

 Gerv


The new Colorado and Oregon models seem to support some sort of raster
images natively, as evidenced by the Ordnance Survey maps recently released
(Garmin GB Discoverer) [1]. However, the format of those is not publicly
known.

If you want to use raster images, the new Delorme PN-40 (and the older,
slower PN-20) support raster nicely, and with a $100 add-on called XMap, you
can add your own georeferenced images to your GPS, so you could use
something like slippy map tiles. Caveat if you're looking to use Delorme
maps: The currently available maps and aerial imagery from Delorme seem to
cover only the US.

Karl

[1]
http://forums.groundspeak.com/GC/index.php?s=showtopic=205902view=findpostp=3778507
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Re: [OSM-talk] OSM on Garmin - raster tiles?

2009-01-06 Thread Igor Brejc
Gervase Markham wrote:
 When I heard about the possibility of OSM on Garmin, I imagined
 something like the Mapnik Slippy Map on my GPS screen. Now I have a
 Legend HCx, it turns out that I get the Garmin vector rendering with OSM
 data behind it. This is clearly much better than nothing, but does the
 gmapsupp.img format support stuffing in a load of raster tiles, or is it
 vector data only? (Obviously, you'd lose the ability to route with raster.)

 Gerv
   
IMHO converting OSM vector data into raster images and then showing them 
on a Garmin unit would mean losing a lot of quality and speed, not to 
mention how much more memory card space such maps would consume. And, as 
you mentioned, you loose the ability to select map objects.
Bitmaps on Garmin would be nice for data which is originally stored as 
bitmaps (like satellite imagery) or for hill shading. I'm working on a 
new mapmaker tool for Garmin maps 
(http://igorbrejc.net/development/continuous-integration/groundtruth-a-new-garmin-mapmaking-tool).
 
I haven't planned any support for bitmaps, but now it got me into 
thinking - maybe I'll add it after all ;)

Igor

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Re: [OSM-talk] OSM on Garmin - raster tiles?

2009-01-06 Thread Gervase Markham
Igor Brejc wrote:
 IMHO converting OSM vector data into raster images and then showing them 
 on a Garmin unit would mean losing a lot of quality and speed, not to 
 mention how much more memory card space such maps would consume.

Could be. But they'd look a heck of a lot nicer, and have useful POIs on
them. (Perhaps I could get better POIs by working out how to tweak the
current compilation process...)

Gerv


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Re: [OSM-talk] OSM on Garmin - raster tiles?

2009-01-06 Thread Igor Brejc
Gervase Markham wrote:
 Igor Brejc wrote:
   
 IMHO converting OSM vector data into raster images and then showing them 
 on a Garmin unit would mean losing a lot of quality and speed, not to 
 mention how much more memory card space such maps would consume.
 

 Could be. But they'd look a heck of a lot nicer, and have useful POIs on
 them. (Perhaps I could get better POIs by working out how to tweak the
 current compilation process...)

 Gerv

   
What kind of a problem are you having with POIs? What do you mean by 
useful? I'm wondering because I'm working right now on POIs for 
GroundTruth.

Igor

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Re: [OSM-talk] OSM on Garmin - raster tiles?

2009-01-06 Thread Gervase Markham
Igor Brejc wrote:
 What kind of a problem are you having with POIs? What do you mean by 
 useful? I'm wondering because I'm working right now on POIs for 
 GroundTruth.

Actually, it's not as bad as I thought. They didn't show on the zoom
level I was using, and some I expected to be there aren't actually in
the data yet.

But it's still fairly ugly :-)

Gerv


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