OpenStreetMap 開放街圖
Sorry more questions! This time in regards my Garmin 60csx. I now find that I can't download the tracks from my GPS to my computer without it removing the time stamps, which then means the track when uploaded to OSM is rejected. So is the only way to clean up the track through the GPS? thats going to make things a bit laborious. It also means everything Ive done is useless too since Ive already downloaded the tracks and been cleaning them up on the computer..grr
討論
由 Firefishy 於 2010年06月25日 15時31分 發表的評論
The best way to log on a 60csx is to log direct to the data card. It saves directly to dated GPX files.
The built in save track mechanism on the 60csx is silly, it hugely simplifies the route and as stated drops the timestamps.
Alternatively use GPSBabel to download the active tracklog which isn't simplified.
由 Rogerdodger 於 2010年06月25日 16時22分 發表的評論
Sorry I don't understand you, can you try again. I know I can log my tracks direct to the data card, but so can I then download that to Mapsource to clean up the tracks then still be able to upload to OSM?
Thanks
由 RichardB 於 2010年06月25日 16時56分 發表的評論
I think it should be possible to put the 60CSx in "Mass Storage Mode". With that, if you have a USB cable, you can get the tracks as GPX files straight off the data card and save them to your computer.
These should be fine to load into OSM without doing anything, but if you want to remove any rogue points you load the GPX files in Mapsource, you should be able to edit the tracks in there. Make sure you save as gpx again.
由 Rogerdodger 於 2010年06月25日 17時22分 發表的評論
Ahh gotcha, ok thanks!
由 Chaos99 於 2010年06月28日 05時27分 發表的評論
Btw: the 'Save Tracks' function of Gramins GPSMap and eTrex units is (despite the confusing name) not targeted at 'storing' the tracks, but just for making them available for the Trackback routing function. The get compressed by that action and loose a lot of detail (and quite possible tha timestamps).
This function originates from the time before SDCards and was used to fit as much routable tracks into the tiny internal memory as possible saving every unneccesary bit.
You should definatly use the 'save to chip' option and get you full detail tracks from that using a card reader or the mass storage mode of your device.
由 Anna_AG 於 2010年06月28日 13時46分 發表的評論
I compile traces over multiple days into JOSM, merger the layers into one and remove any clearly irrelevant or 'poor' trace data.
If you have an micro SD card for your unit ( highly recommended ) you can set the unit to log once per second to the card, even 24 h of logging ( 3600 pints / hour ) will generate files of about 10 Mb or less.
Of course you can also upload map files to your Garmin's SD card, personal ones you have made, or pre made ( IMG files ) ones from Cloudmade etc. Really useful when cross checking an area you are mapping with the existing data.
Cheers bri