Messages

Menion.

Thanks for the suggestions. I looked, and there are only 27 points over a distance of 2.1 miles. But I also noticed that some of the points are very inaccurate, so maybe the problem is that the GPS was failing to get a lock very often. My phone was under a thick coat, so maybe that interferes with the GPS signal? It seems to me a coat should not make much difference to the GPS signal (unless it's made of chain-mail, but I don't hike up hills in chain-mail :mrgreen: ), but I'll try again in the next couple of days with the phone in an outer pocket.

Has something changed recently with track recording? It's been a little while since I recorded a track (since testing of the calibrated map overlay), but yesterday and today I recorded a couple of new tracks. The points on the tracks are very far apart, even though I have my intervals set to 5m and 2s, and the GPS to 0s (these are the same settings as the last time I recorded a track; I have not changed anything).

OK. Thanks. Thought I was somehow missing out on some major capability of Locus. :|  I guess I'll stick with my non-integrated solution for now: one app for offline voice navigation, one app for everything else to do with mapping  

Hmm Locus support only one navigation directly - Navigon. If you have this installed, then in last submenu on point details screen (where StreetView and others are) should be also button "Navigon" which run navigation on selected point. Better integration isn't available. Other navigations like Sygic etc., don't offer anything like this ...

I didn't realize this. So if I have Navigon installed then I can do off-line navigation in Locus? I assume that is true only for the regions I have installed in Navigon.

I don't think there is any app that can do full offline navigation that Locus can connect to. I wish there were. There are three independent apps I know of for full offline navigation: Sygic GPS Navigation, CoPilot Live, and Navigon. I have the Sygic app, and it seems to work OK in the USA. I have a built-in GPS in the car though, so I confess I don't use it all that often. It also gets better reviews overall that the others. I think how accurate the maps are depends a lot on your location though (especially, Europe vs US). I know someone in the UK that has CoPilot in the UK, and he was impressed until the latest update, after which it apparently calculates really bad routes.

try "Remove temp map items" if this also remove displayed tracks, it should work ..

Thanks for the tip. That works  

Edit: And I only just noticed the other thread on the same topic!

I took 3 bytes for every pixel no matter of color palette you use.

Thanks for looking at it. It was worth a try, even if it didn't work.

except memory limits

I tried an experiment with this. I created 3 maps, all with the same number of pixels, but with 24 bit, 8 bit palleted, and 8 bit grayscale color depths. The 8 bit versions should require less memory, at least in principle, but I could not load any of them. Is the way you store the images inside Locus always the same, regardless of the color depth of the image?

I was thinking about tracks as trail maps, and the attached file is a very small example I created to test the idea. The tracks were recorded in Locus, and then edited and assembled into the attached kml file in Google Earth. You can view it in Google Earth. Why would I want such a trail map? It can be overlaid (in principle, in practice not at the moment in Locus of course) on any map, either offline or online, and you can guide on the trails. It is also much less work to create a trail map this way than it would be to draw them all on satellite images or topo maps, etc.

This now works with the new Map Items import  :mrgreen: It imports all the tracks (without putting them in the tracks database, which is exactly what is wanted in this case!) and displays them with their names, etc, and I can guide on them (at least, it says I can; I have not actually tried it yet). There is one small bug though. If I go back to the Map Items manager, it does not show it as a loaded map item, so I can't turn the tracks off except by exiting Locus  

Anyway how this works for you (not just Richard)? I was playing with it quite a lot and seems that except memory limits, this feature is quite intuitive and easy to handle and mainly working. For some field quick calibration, seems enough ...

It works well for me. As I mentioned in an earlier post, the only thing that I can think of that would make it a little easier to use would be to make the map item manager available directly from the data manager screen (so 6 items on that screen, rather than 5). It would make it easier to find for those less familiar with Locus.

I think it's a great addition to Locus. It doesn't quite do everything Maprika does (Maprika handles bigger images, because the app does very little else, and I think it can even calibrate maps such as ski resort maps that are perspective views of the mountain), but it does most of it. And it does it in Locus, where everything else is available    I think it's time to delete Maprika from the phone  

I've found a minor bug. If you use seven points for calibration (or presumably more), the screen that shows the deviations does not display them all, because there is no scroll bar.

This seems to solve the problem. I can now get my maps to line up properly with each other. I'll check it works with the GPS when I'm in China (although I can't see why it wouldn't!). Since the offsets vary from one place to another it would be nice if we could store multiple sets, with a name for each. That's not really necessary though, because I can store them in another file and copy and paste them into Locus

Working out the correct offsets is rather painful, so for anyone that wants them:
In Beijing: Forbidden City (in the center), 533m and 159m; Friendship Hotel (NW from the center, by the third ringroad), 518m and 139m; Summer Palace (NW from the center, by the fifth ringroad), 508m and 132m
Chengdu center: 250m and -265m.
I'll add other locations when I figure them out.

Thanks very much for this. It is going to make it so much easier when I'm in China!  :mrgreen:

OK. I tried my strangely oriented map, and it calibrated fine in this new version. I got 1.7m deviations at each of 4 points. I also went to the location and walked one of the trails, and it seems to be as good as could be expected, given the limited accuracy of the phone GPS (in fact, it was better than I expected). I also recorded a track, and this worked fine when it was recording. When I saved the track it disappeared from view though, because it was then behind the map overlay, not in front of it.

The map item manager worked fine too, but it would be nice if we could access it directly from the Data Manager screen where we can already access tracks and POIs.

hi,  are you in China?

No. My trip got delayed. I have now been told that I have to be there soon, but I don't know exactly when. Maybe before the end of the week, maybe not until the middle of December. PITA :roll:

Check new version from market (currently uploading). Go to functions and scroll down .. there's new "Map offset" tool ...

Thanks Excellent.    I'll check how it works.

Are there any online sources to find jpg maps (from brochures for example)?

A lot of parks, resorts, etc have maps online. They are often in pdf format, but you can use PDFill Image Writer to print them to jpg files:
//http://www.pdfill.com/freewriter.html