Re: Maemo Mapper v1.4 for 770/N800
 

Honestly, I don't know much about WMS and how to best utilize it with Maemo Mapper. I do know that I've had problems where the graphics library would crash (with a seg fault) given "image files" that were actually HTML files, as might occur, for example, if a WMS server returned an error instead of a graphics file.

Normally (e.g. with OpenStreetMap, Google Maps, or other non-WMS repositories), errors are returned to Maemo Mapper via an HTTP error code (like 404 if the map doesn't exist). This is fine, because Maemo Mapper can detect this is draw a blank tile instead (although it will retry a few times, too). But WMS servers generally return an HTML page instead. If libpng tries to open that HTML page, sometimes it crashes.

If your WMS server allows you to specify a (safer) mechanism by which it can return errors, then I'd recommend using that feature. Otherwise, you'll have to try and limit yourself to areas of the world that don't produce an error.

And if everywhere is producing an error, check the HTML files themselves (there may be many zero-sized files, but there should be at least one non-zero-length file, too), and see if it provides any insight for why you're getting the error.

If you need to reset Maemo Mapper so that you can tweak the settings (because it crashes every time you start), then run the following command from the command line:

gconftool-2 -u /apps/maemo/maemo-mapper/repositories

This will clear your repositories list and reset it to the default (OpenStreetMap).

Re: Maemo Mapper v1.4 for 770/N800
 

Hope Gnuite sees this question. Don't know if it's been asked and answered yet already.

My wife's car has GPS built-in. It shows the name of the street you are currently on at the bottom of the map on the screen. It also displays the name of the street that is to be your next turn. Is it possible to make MM do that?

thanks,
Neil

Re: Maemo Mapper v1.4 for 770/N800
 

Ok, I can try to use EXCEPTIONS=INIMAGE parameters, WMS server returns then error message as an image. Does it matter if I use for exampe png, png24 or jpeg image format? The Server I use is MapServer, and it is working very well with PC-clients like OpenLayers and ka-Map.

Should I use BBOX=%.6f,%.6f,%.6f,%.6f or BBOX=%.2f,%.2f,%.2f,%.2f with epsg:3067?

More information about 3067:
http://ocean.csl.co.uk/experimental/...ected&server=1

Re: Maemo Mapper v1.4 for 770/N800
 

I made some "wiresharking" and the query is ok, at least when using BBOX=%.2f,%.2f,%.2f,%.2f.

Actually It seems to be something wrong, when I try to save my repository to internal mmc2 memory card on N800.

I'm able to save repository to mmc1, but not mmc2.

/dev/mmcblk1p1 120.0M 5.2M 114.8M 4% /media/mmc1
/dev/mmcblk0p1 995.1M 693.4M 301.8M 70% /media/mmc2

I have not noticed that other programs has problems with writing to internal mmc2 device.

Also some reprojection problems exists with WMS-service and MM when using epsg:3067, see screenshots:

http://www.kolumbus.fi/evis/mm/screenshot00.png
http://www.kolumbus.fi/evis/mm/screenshot01.png

Re: Maemo Mapper v1.4 for 770/N800
 

Maemo Mapper can't show the name of the street you are on, because it doesn't actually have any street data (e.g. Navtech). Maemo Mapper only has bitmap data and the data that comes from your GPS receiver (i.e. latitude, longitude, speed, heading, etc.). So it can plot your location on a bitmap, but it can't "read" that bitmap to interpret which road you're on (or near).

As for displaying "the name of the street that is to be your next turn", the routes that you download (via the "Download Route" dialog) will usually include "waypoints" that, as you get closer to them, will cause a popup message to appear instructing you what to do next (e.g. "Turn left at Main Street. Go 2.6 miles.").

Re: Maemo Mapper v1.4 for 770/N800
 

png, png24, and jpeg are all fine. Any image format understood by gdk-pixbuf should work (since that's what maemo-mapper uses).

If you're familiar with C and/or printf, you'd understand the differences between the two. Both should work, but %.2f will be less accurate, so I'd use %.6f.

(Basically, %.2f means to format a floating point number such that it has at most 2 digits after the decimal point. %.6f means 6 digits.)

Re: Maemo Mapper v1.4 for 770/N800
 

Ok, thanks for clarifying this.

WMS-connetion is now working, but results are...hm...something I did not expect.

This is an example map I get when using OpenLayers client on PC, the figure of Finland when using epsg:3067:
http://www.kolumbus.fi/evis/mm/finland_3067_ok.png

And this is what I get with MaemoMapper:
http://www.kolumbus.fi/evis/mm/finla...067_NOT_OK.png

Could this be a problem between MaemoMapper and Proj? Or should I just change some parameters somewhere?

Oh, I just found this from http://hoohol.ath.cx/public/index.ph...eMM-Extensions

"Tiles don't seem to fit exactly, what can I do?

Not much, sorry. In this case the projection is sufficiently different from the mercator projection and one would need real warping for a fix. Lower zoom levels usually decrease the errors. (For warping look at gdal)"

If this is true, which epsg code correspods mercator projection that Maemo Mapper uses? I can use gdal and proj on server side and hopefully create MM compatible WMS-service.

Re: Maemo Mapper v1.4 for 770/N800
 

I don't know anything about EPSG codes... Maemo Mapper uses the same mercator projection that Google Maps and Virtual Earth use, so it's not an uncommon projection - just one that WMS services generally don't use, I guess...

Re: Maemo Mapper v1.4 for 770/N800
 

Ok and Thanks!

Maybe I try later on "self made EPSG" on a server side. Just googled:

<54004> +proj=merc +lat_ts=0 +lon_0=0 +k=1.000000 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m no_defs <>

http://lists.osgeo.org/pipermail/web...er/000154.html

Re: Maemo Mapper v1.4 for 770/N800
 

I got things to work pretty well with previous parameters, just adding them to epsg file on the client and server side. Of course, server requires some additonal reconfiguration to support it.

Re: Maemo Mapper v1.4 for 770/N800
 

jaska k, which WMS sites are you using? There are other, more accurate, ways to re-project/reformat data and I'd like to check this site out....

Rgds
Kempja

Re: Maemo Mapper v1.4 for 770/N800
 

I tried to import a gpx track file from a Garmin device. Maemo did not like it: parse error. I patched the file manually:
1. Changed to
2. Deleted the <metadata> and <extensions> xml-elements.

This fixed the import.

PS. Thanks for the great software gnuite.

Re: Maemo Mapper v1.4 for 770/N800
 

Through slightly overzealous pruning of the N800 internal storage, I nuked my (empty) default POI database. Now maemo-mapper complains about the missing file on startup. Is there an easy way to regenerate this db, preferably on \media\mmc2 where I store my maps?

Re: Maemo Mapper v1.4 for 770/N800
 

I'm experiencing a lot of crashes when I'm using a BT GPS module. It always crashes when I shut the GPS module off, and usually when I try to save the track (when I select the menu item). It also crashes occasionally when I just try to open settings dialog. The most annoying of these is the crashes when saving the track, because then I lose the track.

Re: Maemo Mapper v1.4 for 770/N800
 

When Maemo Mapper starts up, if the POI database (the file itself) does not exist, it creates a new one. So, you shouldn't have to do anything, except make sure that the file can be created (that is, that the POI database file setting refers to an actual, valid, writable file location).

If you want to use /media/mmc2 for your POI database, just change the setting in the POI tab of the Settings dialog. When maemo-mapper restarts, it will create the file if it doesn't already exist (again, assuming the file is valid and writable).

Re: Maemo Mapper v1.4 for 770/N800
 

I have been using Maemo Mapper for 30 minutes... so, please forgive me if this is a naive question.

Is it possible to add to the Go to menu an option to go to a street address, city/town or zip code?

If I want to get a map of a place I am visiting, I need to create a route to it and then navigate through the maps and zoom in to the endpoint of the route. I keep thinking there should be an easier way to get to the map of a location. Using any of the yahoo maps, google maps etc., I just type in the zip code and press enter and am right where I want to see.

thx

edit:
Another useful thing I would like is a "Go Back" option, This would go back to the previously viewed map.
Now if I press Toggle auto center by accident it goes back to my GPS. then it takes me ages to get back to the map I was looking at :(

A way to disable some hardware keys by setting an action of "None" to it would be nice also.

Re: Maemo Mapper v1.4 for 770/N800
 

D'oh... (hitting self upside head with Stupid Stick)

Got it - autocreate was failing because I nuked not only the file but also the original Maps directory that contained it. So just altering the filespec with that in mind did the right thing.

Truly idiot proof code might take the extra step of creating the target directory if necessary. I guess it depends on how much you're inclined to coddle idiots. ;-)

Anyway, thanks for the tip!

Re: Maemo Mapper v1.4 for 770/N800
 

Hey guys, im a complete noob to this thing. Ive got an n800 with updated os. Trying to install maemo mapper. When i click the link on the op, on my pc it prompts me to download an install file. When i click from the tablet, im taken to a text only page with what looks like an install command. Any help?

**Edit** I got it working. I just had to edit the repository settings.

Re: Maemo Mapper v1.4 for 770/N800
 

Not in the current version, but it will be there in the next version. You will need internet access in order to do this.

Good idea. So, any of the Go features (including "Go to GPS location", whether its directly or via the Auto-Center function) will be "Go-Back"-able. I'll make it stackable, so you can go back multiple times. What about a "Go Forward" button? The Go stack won't persist between restarts, though.

Will do, although one of the "Show XXX" actions might hold you over until then, since all they do is pop up something for a few seconds.

Thanks for the suggestions.

Re: Maemo Mapper v1.4 for 770/N800
 

Yeah. I thought it would create the directory, but I was wrong. It should, and it will, in the next version.

Re: Maemo Mapper v1.4 for 770/N800
 

That was a problem with my web server, and it has since been fixed. Clicking on that link should cause your Nokia device to install Maemo Mapper automatically. My apologies for the inconvenience.

Re: Maemo Mapper v1.4 for 770/N800
 

I appoligize now. I am the biggest noob with my 770. I have a nokia ld-1w that should work with this program so that should be good. I downloaded mapper from the repositories but its only version 1.3.5. Where the heck to I get the latest version 1.4?? I'm so flippin confused. Any help would be appreciated and please make the directions fool proof if you can.

This 770 makes me feel like a 4 yearold trying to learn linux...

Thx.

Paint

Re: Maemo Mapper v1.4 for 770/N800
 

Please upgrade your firmware to the latest version (if you haven't already). Once you have done that, you can start using the "most recent" repository, called "gregale". A shortcut for doing this would be to click on the link for Maemo Mapper, on the first post of this thread. That link will automatically set up the new gregale repository and install the latest version of Maemo Mapper from that repository.

Re: Maemo Mapper v1.4 for 770/N800
 

that sounds great! thanks for listening.

1 more thing...

In the Download maps By Area tab. Would it be possible to select maps in a 5 mile radius of current location or current map. Then I could cache a bunch of maps for offline use. (a selectable range would be nice. or another way rather than using long and lat)

Re: Maemo Mapper v1.4 for 770/N800
 

Kempja,

I would like to know more about those accurate ways to re-project data. The WMS-server I used for testing is under construction and not public currently. It's running on MapServer and uses gdal, proj, postgis etc...

And sorry for late reply.

Re: Maemo Mapper v1.4 for 770/N800
 

Thanks, I got things going. I'm able to connect to my NOkia LD-1W and track movement just fine. However, I'm paired with my N73, which in the US only gets an EDGE connection, and that's hardly quick enough for map downloads on-the-go.

Is there a way to download a specific region maps to my memory card, and just use that? I have TomTom on my N73 and that's how it works, I have the US South Central maps (~300mb) on my 2GB memory card, so when driving I don't need a data connection.

If this is already implemented, kindly tell me how to do it and then smack me upside the head. :)

Re: Maemo Mapper v1.4 for 770/N800
 

Use the "Manage Maps..." button in the "Maps" menu.

*smack* :)

Re: Maemo Mapper v1.4 for 770/N800
 

Ah, thanks. Although, I'm still confused as to how to tell it where to download. As far as I can tell, the best way to do it would be to have the GPS connected (to get the coordinates). I'll give it a go at lunch maybe.

Re: Maemo Mapper v1.4 for 770/N800
 

You can download maps (at different zoom levels) along a route. This is OK if you want all the maps at a few zoom levels along the whole route.

What I would like is to download a bunch of maps around the current map using selected zoom levels. then I could cache some maps at one location for offline use.

When on a route I don't need all the zoom levels for the whole route. Just around the endpoint or a few at waypoints.

Re: Maemo Mapper v1.4 for 770/N800
 

I guess maybe I'm looking for something different. I want to be able to download ALL zoom levels (or maybe just the closest half) for a specific geographic area, for offline use, similar to TomTom on my N73, I have a region map downloaded and I can do full routes and everything without connecting to the internet, within the defined area.

Re: Maemo Mapper v1.4 for 770/N800
 

even if you download all the maps. I think you still need an internet connection to calculate a new route.

Re: Maemo Mapper v1.4 for 770/N800
 

That's fine. EDGE is fast enough to calculate a route, but not fast enough to download full maps on the go.

Re: Maemo Mapper v1.4 for 770/N800
 

the way i did it is to bring up the area you want to copy-then ck the zoom levels you want and download when you have a good wifi connection. it tells you how much will download in case its more than you want

Re: Maemo Mapper v1.4 for 770/N800
 

I think I get it! So If I zoom out a little to display the whole area I want maps for, then go to Maps Download, select the zoom levels I want (the area is already set due to the view I have on the screen) then download the whole area I see at all zoom levels I want. Cool. am testing it now :)

Re: Maemo Mapper v1.4 for 770/N800
 

Exactly. You may not want to use the lowest zoom though as it adds the most data to the card. Depends what your needs are for that area

Re: Maemo Mapper v1.4 for 770/N800
 

I got it working! I'm a fan of the display, however, I was unable to map a route today. I didn't see an address search/input option. This seems more like Google Maps with GPS overlay.

Re: Maemo Mapper v1.4 for 770/N800
 

Thanks. It seems to work well :)

selecting too much data as you say is probably not a good idea.

Re: Maemo Mapper v1.4 for 770/N800
 

What do you mean by "Address search/input" option? If you mean having to ability to "Go to" a particular address, that (among other things) is coming in the next version. In the meantime, there's a workaround: Download a route from the address you'd like to see to that same address (yes, both text fields - use copy/paste), then use "Go to -> Next Waypoint". That's basically what the "Go to -> Address..." feature is going to do. Yes, that means you'll need internet access to go to an address - you have to remember that Maemo Mapper is free and thus doesn't have ANY of that expensive Navteq street data, so it can't do routing or address-finding on its own. It works only with bitmap images.

Re: Maemo Mapper v1.4 for 770/N800
 

Like I said, I'm used to TomTom, and having address search and all that. Hell, I've even used Nav4All and been able to search for address.

Not that I'm not appreciative of the massive amounts of work that have obviously been put into MaemoMapper. Just expressing feedback as to what I'm looking for.

I'll play some more, but at least I've got the maps thing figured out.

Re: Maemo Mapper v1.4 for 770/N800
 

I there any way for Maemo Mapper to always have maps face the direction you are driving (the street always on top of your position) like other navigation systems or is this impossible because of the way the maps are downloaded? Thanks!