Re: [talk-au] Garmin Handheld with osm and shonkymaps
In my experience shonkymaps is pretty terrible for bushwalking - it's just not accurate enough (as it is compiled from 1:250k map data.) It will of course depend on the area you are going to - download shonkymaps and have a look at it before you by your gps. Shonkymaps is ok for vehicle navigation, but beware that the maps are not routable - as in the gps cannot say turn left 500m because the data to link the roads together is not in shonkymaps (and cannot realistically be built in to it.) I have a garmin colorado 300 with shonkymaps and osm routable from http://garmin.na1400.info/routable.php Works great, although I did have some troubles with the first colorado I had - garmin swapped it for a new one for me. ~Cameron 2009/10/23 Ross Scanlon i...@4x4falcon.com Hi All, I'm looking at buying a handheld gps, probably Garmin, that can have the osm maps and shonkymaps loaded. This will mainly be used for bushwalking, thus the shonkymaps, so I'd like to be able to have both available all the time. Is anyone here using a Garmin with osm maps and/or shonkymaps? If which model? -- Cheers Ross ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Garmin Handheld with osm and shonkymaps
Hi Ben, Thanks. What happens if you log directly to the microSD rather than the internal memory? The user manual shows this as an option and it also states that they are in gpx format. From the manual: Using this option allows you to record a large number of track points (depending on the capacity of the microSD card). At this stage most of what we intend to cover is single days returning to base each afternoon, so can then download then and start fresh each morning. It also would only be logging whilst walking, all in the 4x4 would be logged by the 4x4 pc. I'll have to also investigate saving to a photo bank (portable hdd with ability to copy from microSD etc directly to the hdd no computer required). Cheers Ross On Fri, 23 Oct 2009 16:27:34 +1100 Ben bened...@cortado.de wrote: Thanks for the quote from the Garmin site. So.. if you log at the smallest interval possible (1 sec), you will produce about 12MB of tracklogs per 24 hours. In theory, 12GB is enough space for ]~1000 24-hour-days, but in fact the file system used by Garmin is (or was?) limiting the number of files that can be written into a single folder to 255. A new tracklog is started at least every day, but also on every switch-off/on. During normal usage, logging is over after 3 or 4 months. As far as I remember, you are not notified about that on the device, it just stops logging. Only carrying a laptop or any other device to modify the SDCard helps. In this case, moving the data to another folder on the card does the trick. Another problem: the inability on those Garmin devices to show all track data you log. You can save 20 logs, and they can be shown on the device in addition to the current tracklog, but you cant display all your tracklogs without converting them into an IMG-overlay. Depending on the chosen log interval, 20 saved logs can be used up quickly, and it requires manual interaction in certain time intervals. If you rely on those tracklogs to find your way back a few days later (or even hours later if you log on 1sec and forget to save manually), you could get a problem.. Id love to find a way around this, but until now, the above mentioned conversion is the only one I found. -Ben ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Garmin Handheld with osm and shonkymaps
Ross, yes, the logs are in gpx format, but I think the author of the quoted sentence didnt have microSD capacities in mind as we now can buy. With a 16GB card, you will hit file system limitations sooner that size limits. The limitation in regards to the number of files happens when logging to the microSD. Using photobank, you should be able come around the limit of 255 files by deleting the tracks saved to the card on the Garmin after backup (thats the only thing what you can do with those tracklogs directly on the device) However, a month without maintenance shouldnt be a problem. Avoiding to switch off the device for short periods saves one file each. -Ben Ross Scanlon wrote: Hi Ben, Thanks. What happens if you log directly to the microSD rather than the internal memory? The user manual shows this as an option and it also states that they are in gpx format. From the manual: Using this option allows you to record a large number of track points (depending on the capacity of the microSD card). At this stage most of what we intend to cover is single days returning to base each afternoon, so can then download then and start fresh each morning. It also would only be logging whilst walking, all in the 4x4 would be logged by the 4x4 pc. I'll have to also investigate saving to a photo bank (portable hdd with ability to copy from microSD etc directly to the hdd no computer required). Cheers Ross On Fri, 23 Oct 2009 16:27:34 +1100 Ben bened...@cortado.de wrote: Thanks for the quote from the Garmin site. So.. if you log at the smallest interval possible (1 sec), you will produce about 12MB of tracklogs per 24 hours. In theory, 12GB is enough space for ]~1000 24-hour-days, but in fact the file system used by Garmin is (or was?) limiting the number of files that can be written into a single folder to 255. A new tracklog is started at least every day, but also on every switch-off/on. During normal usage, logging is over after 3 or 4 months. As far as I remember, you are not notified about that on the device, it just stops logging. Only carrying a laptop or any other device to modify the SDCard helps. In this case, moving the data to another folder on the card does the trick. Another problem: the inability on those Garmin devices to show all track data you log. You can save 20 logs, and they can be shown on the device in addition to the current tracklog, but you cant display all your tracklogs without converting them into an IMG-overlay. Depending on the chosen log interval, 20 saved logs can be used up quickly, and it requires manual interaction in certain time intervals. If you rely on those tracklogs to find your way back a few days later (or even hours later if you log on 1sec and forget to save manually), you could get a problem.. Id love to find a way around this, but until now, the above mentioned conversion is the only one I found. -Ben ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] off ramp speed limits
2009/10/23 Luke Woolley lswool...@gmail.com: I'm not sure about other states, but this is the situation for Victorian off-ramps. These signs show the advised speed limit. This is not the legal speed limit for the ramp. I don't think there is a way to tag advised speed limits yet. These signs are put in place about half way between the ramp exit and the end of the ramp. This is where the way should be broken into two. So the first part of the ramp should have max_speed = 100 and the second part of the ramp is to have max_speed=70 for example. The same thing for onramps but in reverse. The speed limit of the section of road in which access to the onramp is required is the speed limit for the first section of the onramp, then when a 100, 110 or similar speed limit sign is shown, this is where the way is broken into two and the second part of the onramp is the freeway speed limit. If there are no signs on the on/off ramp, then it should stay the same max_speed until it reaches a section of a road in which there is a speed limit, so the whole offramp would be 100 or 110. Just my thoughts. That's more or less what I was thinking, it's not a speed limit unless there is a speed sign, and advisories if people want to add them need to be different to max_speed tags... ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
