Re: [android-developers] Offline Maps Won't Calculate Route Without a Data Connection
I guess I didn't articulate well enough... Chance did that for me though, when he said this: That part isn't the problem. It is housing all of the data to be able to be 100% offline and 'change route'. Thanks, Justin Anderson MagouyaWare Developer http://sites.google.com/site/magouyaware On Fri, Sep 21, 2012 at 7:41 PM, Indicator Veritatis mej1...@yahoo.comwrote: I a sure it does require a lot of data, but as the OP described, all that data should have still been in cache. It is not at all clear why you believe there is absolutely no way ... stored on a mobile device; not when the user can see the map data for the whole route. On Thursday, September 20, 2012 9:55:30 AM UTC-7, MagouyaWare wrote: Until Google looks at fixing this situation, In my mind there is nothing to fix... Do you have ANY idea how much data is required to calculate a route between two points? There is absolutely NO way that much information could be put into the maps application and stored on a mobile device. I think they did a great job of allowing you to use GPS once you've already gotten the route data with a data connection. That is awesome... Thanks, Justin Anderson MagouyaWare Developer http://sites.google.com/site/**magouyawarehttp://sites.google.com/site/magouyaware On Wed, Sep 19, 2012 at 12:03 AM, David GESG drs...@gmail.com wrote: Until Google looks at fixing this situation, -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Offline Maps Won't Calculate Route Without a Data Connection
I a sure it does require a lot of data, but as the OP described, all that data should have still been in cache. It is not at all clear why you believe there is absolutely no way ... stored on a mobile device; not when the user can see the map data for the whole route. On Thursday, September 20, 2012 9:55:30 AM UTC-7, MagouyaWare wrote: Until Google looks at fixing this situation, In my mind there is nothing to fix... Do you have ANY idea how much data is required to calculate a route between two points? There is absolutely NO way that much information could be put into the maps application and stored on a mobile device. I think they did a great job of allowing you to use GPS once you've already gotten the route data with a data connection. That is awesome... Thanks, Justin Anderson MagouyaWare Developer http://sites.google.com/site/magouyaware On Wed, Sep 19, 2012 at 12:03 AM, David GESG drs...@gmail.comjavascript: wrote: Until Google looks at fixing this situation, -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Offline Maps Won't Calculate Route Without a Data Connection
Until Google looks at fixing this situation, In my mind there is nothing to fix... Do you have ANY idea how much data is required to calculate a route between two points? There is absolutely NO way that much information could be put into the maps application and stored on a mobile device. I think they did a great job of allowing you to use GPS once you've already gotten the route data with a data connection. That is awesome... Thanks, Justin Anderson MagouyaWare Developer http://sites.google.com/site/magouyaware On Wed, Sep 19, 2012 at 12:03 AM, David GESG drsv...@gmail.com wrote: Until Google looks at fixing this situation, -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Offline Maps Won't Calculate Route Without a Data Connection
...and this has what to do with development on android? On Wed, Sep 19, 2012 at 12:03 AM, David GESG drsv...@gmail.com wrote: Last weekend I planned a two hour driving trip away, where I knew that from the departure point A for one hour's driving DID HAVE mobile network access coverage, and that from the one hour driving point to the destination point B DID NOT HAVE mobile network coverage. In my testing preparation for the trip I offline loaded the three map sections that would cover the entire two hour drive, and before departing or requesting the route calculation, I turned off ALL data connection on my Samsung Galaxy S3, with Android version 4.0.4, so as to simulate what Google maps would do with offline maps and no data connection. First problem: 1. Google Maps would not calculate the route, issuing a message saying that it could not do so without a Data Connection. 2. Remedy - I turned on data connection, allowed for the calculation of the route, and then turned off data connection 3. Result - the Google Maps application correctly tracked the entire two hour trip, with relatively few display faults, also maintaining all driving prompts. This proved that the application would continue tracking using the GPS signal alone, plotted against offline maps. Some of the display issues were observed where it seemed that any turn of 90 degrees or more, would cause the application to lose the satellite imaging to be lost, until we were re-established back on a straight section of road. Second MAJOR problem: 1. Taking First problem above into account. Upon returning home, therefore wanting to track from destination point B to the point of origin A, the application with a strong GPS signal but no mobile network, would not calculate the route home. 2. We left the application running waiting to see what happened when we reached the one hour driving point, from which point we knew there would be mobile network coverage for the balaance of the trip home, and the application never recovered from the error message No Data Connection. 3. Remedy - we could only recover by stopping the application, restarting it, and then with a data connection requesting routing of the balance of the trip home. Warning to Users: Until Google looks at fixing this situation, users should be wary that if they currently use offline maps to travel to areas where this is weak or no data connection, that once they find themselves in an area with no data connection, the application WILL NOT help you get anywhere else without you firstly finding a data connection, despite you having taken the precaution of loading offline maps to your Android. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Offline Maps Won't Calculate Route Without a Data Connection
...and this has what to do with development on android? Another good point! Thanks, Justin Anderson MagouyaWare Developer http://sites.google.com/site/magouyaware On Thu, Sep 20, 2012 at 11:34 AM, Larry Meadors larry.mead...@gmail.comwrote: ...and this has what to do with development on android? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Offline Maps Won't Calculate Route Without a Data Connection
Calculating between two points isn't a big deal. It's complex math, but can even be accurately determined in mysql with one query. That part isn't the problem. It is housing all of the data to be able to be 100% offline and 'change route'. Your situation was when you tried to change course (getting slightly off track, side roads, etc.,) and it attempted to phone home, so that it could gather new location data for your unexpected veer-off, the data connection was disabled or unavailable. It is easy to plot out a course, and to maintain that data during the predetermined course, but any change to that course, and that is where you have to phone home for an update, since it was not predetermined that you would be making that change. Without using Google API's, I've downloaded tons of geo-data and it was a lot of work just to be able to create accurate projections onto a map image using coordinates. Read about Mercator projections. http://en.wikipedia.org/wiki/Mercator_projection For me, I'm just thankful for Google maps :) It was a two week experience just to be able to enter a zip code, gather lat/long and place my own clouds/rain/sun animations over that location (without plugins/third-party assistance). The only data used (for weather information) was the dump from the National Weather Service, and a database table I work on that contains zip codes, and lat/long coordinates. If a zip code didn't exist, I used the algorithm to determine the closest matching zip code/city within a 20 mile perimeter. I know this wasn't what you were looking for, but it might spark ideas or just be of educational purposes for someone else. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Offline Maps Won't Calculate Route Without a Data Connection
Last weekend I planned a two hour driving trip away, where I knew that from the departure point A for one hour's driving DID HAVE mobile network access coverage, and that from the one hour driving point to the destination point B DID NOT HAVE mobile network coverage. In my testing preparation for the trip I offline loaded the three map sections that would cover the entire two hour drive, and before departing or requesting the route calculation, I turned off ALL data connection on my Samsung Galaxy S3, with Android version 4.0.4, so as to simulate what Google maps would do with offline maps and no data connection. First problem: 1. Google Maps would not calculate the route, issuing a message saying that it could not do so without a Data Connection. 2. Remedy - I turned on data connection, allowed for the calculation of the route, and then turned off data connection 3. Result - the Google Maps application correctly tracked the entire two hour trip, with relatively few display faults, also maintaining all driving prompts. This proved that the application would continue tracking using the GPS signal alone, plotted against offline maps. Some of the display issues were observed where it seemed that any turn of 90 degrees or more, would cause the application to lose the satellite imaging to be lost, until we were re-established back on a straight section of road. Second MAJOR problem: 1. Taking First problem above into account. Upon returning home, therefore wanting to track from destination point B to the point of origin A, the application with a strong GPS signal but no mobile network, would not calculate the route home. 2. We left the application running waiting to see what happened when we reached the one hour driving point, from which point we knew there would be mobile network coverage for the balaance of the trip home, and the application never recovered from the error message No Data Connection. 3. Remedy - we could only recover by stopping the application, restarting it, and then with a data connection requesting routing of the balance of the trip home. Warning to Users: Until Google looks at fixing this situation, users should be wary that if they currently use offline maps to travel to areas where this is weak or no data connection, that once they find themselves in an area with no data connection, the application WILL NOT help you get anywhere else without you firstly finding a data connection, despite you having taken the precaution of loading offline maps to your Android. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
