Re: which gps app can do this?
gvSIG Mobile 0.1.4 was released today, here's a guide that should help you: http://gvsigmobileonopenmoko.wordpress.com/download/ Create a shapefile of your coast line (or download a shapefile for a country) and you should be good to go. http://blogs.thehumanjourney.net/finds/entry/unofficial_gvsig_mobile_0_1 Cheers, Joseph 2009/6/28 lanzo lanz...@gmail.com: Hi! I'd like to be using my FR on my little boat as marine GPS. I was curious if, in your opinion, it could be possible to constantly show the distance between me and the nearest point on the coast line. This would be important because in my country (and i guess everywhere) there are rules about the little boats distances from the coast and I cannot overcome 3 nautical miles. I know it should be possible to show the distances between my present position and any given point, but what about something always displaying the distances between my position and the nearest point on the coast? is there maybe any more in-topic forum where i can ask this? Thank you very much for any answer! bye! :) -- View this message in context: http://n2.nabble.com/which-gps-app-can-do-this--tp3169715p3169715.html Sent from the Openmoko Community mailing list archive at Nabble.com. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
RE: which gps app can do this?
Hello, Lanzo. In which area will your boat be navigating? I mean, which coast are you talking about? It should be easy to get a reasonably good shapefile of that shoreline and you would be permanently informed of the distance to the nearest vertex. Regards, Juan Lucas De: community-boun...@lists.openmoko.org en nombre de Joseph Reeves Enviado el: lun 06/07/2009 17:58 Para: List for Openmoko community discussion Asunto: Re: which gps app can do this? gvSIG Mobile 0.1.4 was released today, here's a guide that should help you: http://gvsigmobileonopenmoko.wordpress.com/download/ Create a shapefile of your coast line (or download a shapefile for a country) and you should be good to go. http://blogs.thehumanjourney.net/finds/entry/unofficial_gvsig_mobile_0_1 Cheers, Joseph 2009/6/28 lanzo lanz...@gmail.com: Hi! I'd like to be using my FR on my little boat as marine GPS. I was curious if, in your opinion, it could be possible to constantly show the distance between me and the nearest point on the coast line. This would be important because in my country (and i guess everywhere) there are rules about the little boats distances from the coast and I cannot overcome 3 nautical miles. I know it should be possible to show the distances between my present position and any given point, but what about something always displaying the distances between my position and the nearest point on the coast? is there maybe any more in-topic forum where i can ask this? Thank you very much for any answer! bye! :) -- View this message in context: http://n2.nabble.com/which-gps-app-can-do-this--tp3169715p3169715.html Sent from the Openmoko Community mailing list archive at Nabble.com. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: which gps app can do this?
why not simply draw a circle with the boat's current position as center and the given distance (3nm) as radius and then check if the circle contains part of the coast line? the moment, the circle is empty, you're out of range. still no scenario for an usual gps app, but the coast lines should be available with almost all data (openstreetmap frinst) and thus easily checked. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: which gps app can do this?
lanzo wrote: Hi! I'd like to be using my FR on my little boat as marine GPS. I was curious if, in your opinion, it could be possible to constantly show the distance between me and the nearest point on the coast line. This would be important because in my country (and i guess everywhere) there are rules about the little boats distances from the coast and I cannot overcome 3 nautical miles. If this is a safety feture, take care to use map data that is sufficiently accurate for your use. Also, the freerunner is not built to withstand salt water, so make sure it won't get wet. I know it should be possible to show the distances between my present position and any given point, but what about something always displaying the distances between my position and the nearest point on the coast? I don't know any such app, the use seems a bit special to me. So you may have to use an existing app, and add code to it for your use. An approach using navit - requires programming: I guess navit is a good choice. It has maps in vector format, including coastline. So you could add some code that periodically checks that at least some coast points are within 3 nautical miles. An approach using tangogps - no programming at all: Tangogps performs better than navit on the freerunner, it is faster. Tangogps uses a map made from png tiles. So there is no way to find the distance to the coast. However, you can make your own map (based on openstreetmap tiles) that includes the 3 mile border. You could have a line in the water, or color the forbidden regions differently. Then, you simply look at the map display now and then to check that you are within the allowed zone. The absolutely simplest way is to edit the png tiles with an image editor, and just draw the border line/area yourself. Openstreetmap has the information you need about scale. (How big regions the tiles cover.) This way require no programming at all, you just draw the (rough) limits onto the existing map. The tiles are small - you might have to edit lots of them depending on what zoom level and how big an area you need maps for. Better approach for tangogps - requires some software and configuration: A more elegant way is to render the tiles for your region yourself. openstreetmap.org has information on how you download software to do this. It is some one-time work downloading and installing the software. After that, you need to modify the rules for rendering, so that allowed and disallowed water is rendered with different color. (Or a borderline 3 miles outside the coast). Then, run the software so it renders maps for your region. This approach has the advantage that you can update with new data from openstreetmap now and then, and have your map improve with time. Perhaps you won't need to do actual programming, but you will have to work with rendering rules (and install some software). is there maybe any more in-topic forum where i can ask this? Your question is definitely on-topic, because you are using a freerunner. Don't worry about that. :-) For detailed help, note that navit has a mailing list, and openstreetmap has several mailing lists/forums where they can help you with rendering questions and other tech stuff. Helge Hafting ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: which gps app can do this?
hi lanzo, I have to say that your problem is interesting, but it's a bit too specific for a GPS application to do this. One quick and dirty solution is: You write a small application which: 1) calculate a polygon area which contains the allowed range. to do this you have to use web map or standalone map. The polygon nodes are lat/lon pairs. 2) get GPS fix from fso ogpsd through DBUS API. this is not difficult with python 3) periodically (say every five seconds) test if current position goes out of predefined area. if the test result is true, then warn with sound (aplay command). To see where you are, you can run a GPS application at the same time. I'm the writer of omgps, I'm planning to extend omgps to solve this kind of problem -- allow user register his/her python script as plugin, omgps periodically call each plugin, passing parameters of current lat/lon/altitude, etc. Periodically can be defined as: (1) on each fix (2) every N seconds. Welcome your feed back :) lanzo wrote: Hi! I'd like to be using my FR on my little boat as marine GPS. I was curious if, in your opinion, it could be possible to constantly show the distance between me and the nearest point on the coast line. This would be important because in my country (and i guess everywhere) there are rules about the little boats distances from the coast and I cannot overcome 3 nautical miles. I know it should be possible to show the distances between my present position and any given point, but what about something always displaying the distances between my position and the nearest point on the coast? is there maybe any more in-topic forum where i can ask this? Thank you very much for any answer! bye! :) -- View this message in context: http://n2.nabble.com/which-gps-app-can-do-this--tp3169715p3170060.html Sent from the Openmoko Community mailing list archive at Nabble.com. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: which gps app can do this?
Alternatively, place POIs along the coast (how dense depends on the accuracy you want to have). Calculate the minimum distance from the set of POIs. 2009/6/28 mqy meng.qing...@gmail.com hi lanzo, I have to say that your problem is interesting, but it's a bit too specific for a GPS application to do this. One quick and dirty solution is: You write a small application which: 1) calculate a polygon area which contains the allowed range. to do this you have to use web map or standalone map. The polygon nodes are lat/lon pairs. 2) get GPS fix from fso ogpsd through DBUS API. this is not difficult with python 3) periodically (say every five seconds) test if current position goes out of predefined area. if the test result is true, then warn with sound (aplay command). To see where you are, you can run a GPS application at the same time. I'm the writer of omgps, I'm planning to extend omgps to solve this kind of problem -- allow user register his/her python script as plugin, omgps periodically call each plugin, passing parameters of current lat/lon/altitude, etc. Periodically can be defined as: (1) on each fix (2) every N seconds. Welcome your feed back :) lanzo wrote: Hi! I'd like to be using my FR on my little boat as marine GPS. I was curious if, in your opinion, it could be possible to constantly show the distance between me and the nearest point on the coast line. This would be important because in my country (and i guess everywhere) there are rules about the little boats distances from the coast and I cannot overcome 3 nautical miles. I know it should be possible to show the distances between my present position and any given point, but what about something always displaying the distances between my position and the nearest point on the coast? is there maybe any more in-topic forum where i can ask this? Thank you very much for any answer! bye! :) -- View this message in context: http://n2.nabble.com/which-gps-app-can-do-this--tp3169715p3170060.html Sent from the Openmoko Community mailing list archive at Nabble.com. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: which gps app can do this?
I woder if you could hack something up based on the upcoming Courier Mode feature in gvSIG Mobile: http://gvsigmobileonopenmoko.wordpress.com/2009/06/24/with-the-new-courier-mode-openmoko-actively-guides-you-through-the-city/ Cheers, Joseph 2009/6/28 Michal Brzozowski ruso...@poczta.fm: Alternatively, place POIs along the coast (how dense depends on the accuracy you want to have). Calculate the minimum distance from the set of POIs. 2009/6/28 mqy meng.qing...@gmail.com hi lanzo, I have to say that your problem is interesting, but it's a bit too specific for a GPS application to do this. One quick and dirty solution is: You write a small application which: 1) calculate a polygon area which contains the allowed range. to do this you have to use web map or standalone map. The polygon nodes are lat/lon pairs. 2) get GPS fix from fso ogpsd through DBUS API. this is not difficult with python 3) periodically (say every five seconds) test if current position goes out of predefined area. if the test result is true, then warn with sound (aplay command). To see where you are, you can run a GPS application at the same time. I'm the writer of omgps, I'm planning to extend omgps to solve this kind of problem -- allow user register his/her python script as plugin, omgps periodically call each plugin, passing parameters of current lat/lon/altitude, etc. Periodically can be defined as: (1) on each fix (2) every N seconds. Welcome your feed back :) lanzo wrote: Hi! I'd like to be using my FR on my little boat as marine GPS. I was curious if, in your opinion, it could be possible to constantly show the distance between me and the nearest point on the coast line. This would be important because in my country (and i guess everywhere) there are rules about the little boats distances from the coast and I cannot overcome 3 nautical miles. I know it should be possible to show the distances between my present position and any given point, but what about something always displaying the distances between my position and the nearest point on the coast? is there maybe any more in-topic forum where i can ask this? Thank you very much for any answer! bye! :) -- View this message in context: http://n2.nabble.com/which-gps-app-can-do-this--tp3169715p3170060.html Sent from the Openmoko Community mailing list archive at Nabble.com. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
