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Slow panning and zooming, displaying of uwanted marks

Benjamin Brücker shared this problem 4 years ago
Solved

Hi,

Since I updated to version 3.36.6 the app is getting unusable for me:

- panning and zooming becomes incredible slow

- the app disppays popup markers abozt streets and points I did not touch meanwhile.


Sorry I'm on holiday and not able to give you more details. This post is eating enough time.


It is so disturbing that I cannot use the app anymore. I'm frustated, because I'm on holiday and imported lot of hiking trips, and the app is turned into such useless state. I use the app since 3 years every week for my racing bike tripps, and most things worked quite well.


Sadly enough, I I don't know the version number before. Can you grant me acceess to the two latest apk files for downgrade? And, how do I install them? parallel?


Regards, Benjamin

Replies (31)

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Hi Benjamin,

this should help:

1) activate expert settings: https://docs.locusmap.eu/doku.php?id=manual:advanced:customization:config#expert_settings

2) turn off "smooth interface"

3) turn on "Map hardware acceleration"

Then, here are some more tips how to maintain Locus Map's performance: https://docs.locusmap.eu/doku.php?id=manual:faq:locus_performance

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Thank you for the answer, after following your suggestion, the program behaves a bit better. In my case I also have to wait around 1.5 and more seconds. Pop-ups do not appear as often as before, but they are still getting on my nerves. I would stll prefer a prevous version. Couldn'T you help me in that way? It is such a pain using locus pro that I start looking for alternatives. Really a pitty. Rwgards Benjamin

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Hi Benjamin,

no problem, older versions are available here: https://docs.locusmap.eu/doku.php?id=manual:faq:devices_older_android. Before downgrade, don't forget to backup all Locus data and uninstall the last version.

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I have the same issue. I tried the solution in Michal's reply, but it does not really help. The point is more that it takes 1.5 seconds for the map to respond when panning/dragging the map. In that time, address markers pop up. And it is rather annoying when swiping the map more than part of the page, since you cannot swipe-swipe-swipe, but every time you release the screen, the next swipe takes >1 second to respond to the new touch. Scrolling the map has become very uncomfortable.

I think it is more the response time for touching the maps screen then the rendering of the map itself. Although, I have the feeling that also the map renders slower since the latest 3.38.6 update.

I use the latest Locus Pro on a Sony Xperia Z3.

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Hi,

what maps cause these lagging problems? LoMaps or OpenAndroMaps or some downloaded rasters? We are trying to figure out the problem and simulating it is quite difficult.

Michal

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I had the problems with OpenAndroMaps of Scicilly amd Locus Maps of North Germany (in the areao of central Berlin. The situation changed. Now the panning and zooming is still lsow, buz maybe it just feels slower, because the animation is disabled.definitvly I have zo wait >3 or 5 seconds after panning or zoming. Now Pop-ups become much slower >5 to 10 seconds.

I moved 3 years ago from Osmand, because Osmand became incriible slow. Now I gave Osmand a second try and have to say it is much faster than locus. Try same areas with hill shading. Hope that helps.

I'll try the downgrade of locus, becauseI eould prefare to stay on Locus maps. But the sperd needs to increase. Otherwise it is not usablr. I do not talk about feeling. It is about the functionality.

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Lo maps and openandromaps are having this problem since latest update. The app become useless with this slow panning

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Also loading of Locus and map takes much more time than before.. Now it automatically start track recording because I had set the count down to 5 seconds, but the program loads in 7-8 seconds at first start

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Yes, loading is also very slow in my case.

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I use the same maps as before : Openandromaps Netherlands. Strange enough, locus is a bit more responsive today than yesterday, although I stopped the app and reloaded it after changing the mentioned options,and then it made no difference. Still, it's showing a lag in map panning, and is slow in redrawing the (vector map) tiles. I made a screen capture movie and will try to measure the response and delay time.

Can I find an older version somewhere so I can make a quantitative comparison?

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Hi, I now installed 3.37.2_pro.apk, and that works like a charm. The response is instantaneous. I also measured the delay with the latest version, and that is 0.45 seconds. (I made a screenshot-movie, dragged the map in Locus, and measured the number of frames it took after moving my finger over the screen, which is visible by enabling Android Developer options: pointer location and display touch movements. The result was 22 frames at a framerate of 47 fps.)

It seems to be independent of which maps I use (offline/online), but it appears to be a bit dependent on the number of waypoints shown on the map (although I did not measure that).

Rebuilding the (offline vector) map tiles seems to take the same time as with the latest version. But I focussed on the panning response.

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Hi Jan-Gerard. Thank you for the testing. Today we are releasing version 3.38.7. where the speed should be improved. We are still searching for the reason of these lags, which are, surprisingly, affecting only some devices.

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Hi,

we are sorry for inconveniences. We are testing what you are reporting but to no avail - we can't simulate it. What do you mean by "it's quite impossible to move to another map"? The map doesn't move or Locus shows no map on the place where the map should be? What kind of map are you writing about? Raster? Vector?

best regards

Michal

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Tried the new version today, but it's all the same : program starts slow (8 seconds and it's starting track recording for me.. before was under 5 seconds) and the map panning especially in more zoom~200 or 300 meters ~ is slow. So nothing changed

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P. S. I have Samsung galaxy S8.. Should not be a slow device

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I have Moto Z Play, frst gen with Android 8. Hope that helps. Locus behaved directly with Locus <3.36.6. i did the same things before. So it is from my point of view not the phone causing the trouble.


Update is not available for me now. I guess a google thing.


Thanks to all the other users for their patience figuring out the problem. I do not have time for that now.

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Hi Michal,

you missed one word from my sentence: "it's quite impossible to move to another map section". The screen doesn't move the map section in most cases, when swiping with a finger. The higher the zoom level, the worse this effect. In the highest zoom level finger-swiping the map section is quite impossible. Do you understand, what I mean?

Best regards

tkansgar

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Hi,

ah, you're right, my mistake. So it's impossible to shift map or zoom it... We registered this problem from several users but couldn't determine what devices have these problems, anyway we tried to fix it - update to 3.38.7. version, it should be already available at Google Play. Does this problem still persist?

Michal

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Currently there still is 3.38.6, which I have already. I will wait for 3.38.7. Many thanks for the info.

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I measured the delay while panning the map on a Sony Xperiz Z3 for the latest versions 3.38.7 (after the latest update) and with version 3.37.2. With the legacy version, I get a response delay of 0.15 sec, which is hardly noticeable, and with the latest version it is 0.48-0.62 sec. Unfortunately, the screen capture files are too large to attach here.

However, it seems like this issue is not really fixed or has changed at all in the latest upgrade of Locus Pro. I suppose it has to do with the way the generated map image (either from vector maps or online map tiles) is cached and slided by the app. Or maybe there is another reason for a delay in the response, where a touch event is handled and the phone is instructed by Locus to response with sliding the map image. I don't know, I'm not an Android developer.

But I hope you can use my feedback to fix this. I like for the moment the old version much better than the latest.(I don't know what features I'm missing, though). Is there somewhere where I can find more recent versions than 3.37.2, so I can help determining at what version the delay was introduced? I'd be happy to test all intermediate APK's.

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Good day guys,

thank you for your testing and patience. Difference between 3.37.2 and 3.38.x is huge (100k+ changed lines of code) so it is almost impossible to find the reason for any problem by comparing app source code. Unfortunately, no one from our team has the same problems as you describe here.

Anyway, I'll ask for help with it, if anyone will have a little time. I've just published a Beta version on Google Play (it may take an hour or two till it appears for download). Install it, start it, use it. Seems that problem happens mainly in high zoom levels. So zoom in as much as possible to make app really slow. Then do these steps:

  • long click on the top-left main menu button
  • in the menu choose "Measure method usage"
  • wait till app info with the green toast that measuring started and then
  • only move with the map a little, for the next 60 seconds. Expect it will be a lot lot slower than before. It is ok. Important is to really just move with the map, nothing more. The app will after minute inform that measuring is done.

Result of this will be a file in Locus root directory which I need for analyzing. Thanks!

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I think this problem is related to the one with slow panning of maps that is described in other topic

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I managed to get a better time with panning by disabling setting /maps/Advanced features /preload global map. Here I had Google hybrid map before, but after disable this timing is better, but not quite good as in previous versions

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Also the issue appears only beginning with zoom 700 meters and more (300,200,etc)

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Hi Menion,


I am willing to help and installed the beta. However, I am not really sure what to do after tracing started. What do you actually mean with “only move with the map a little”? If I try panning the map using the touch screen , the app freezes (Android message pop-up).


Where do you want me to send the trace-file?


Best wishes,


GuRa

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Good day GuRa,

thank you very much for offering to help. I'm already trying to solve this issue with Marius in private topic (it needed a special version).

Will let know here once we find something.

Menion

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I have created some trace files. How can I send them to you?

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Send them to locus.map@asamm.com

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Hello guys,

I've already received yesterday very useful trace from Marius (thanks for this!) so no testing needed now.

I hope for some single bug clearly visible and easily fixable. But it does not look so. In Marius trace is visible small slowdown due to screen rotate and some visible points on the map (is it possible?), but nothing serious. Anyway, I've invested quite a lot time during last two days to various optimizations here and there and I think results should be significant.

I'll publish a new Beta version during next days, so if you will have time to play a little with it and write to me "feelings", it will be really welcome. Thanks.

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Hi, some of the traces I made with the slow planning test beta version. During the trace, my phone asked a couple of times if I wanted to stop the program because it was not responsive, but in the end the map did move.

Best regards, Jan-Gerard van der Toorn

On July 2, 2019 12:35:29 PM GMT+02:00, Locus Map <locus.map@asamm.com> wrote:

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Hi Alex,

we don't register any massive Locus Map performance dropout, moreover on such a powerful device as yours. Please make sure you don't have too many tracks or too many points active (displayed on map), that you don't use some excessive map overlay or huge KMZ map file (more tips for improving Locus perfomance).

Yesterday we published a new beta with much enhanced performance so if you are interested, please try it.

best regards

Michal

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Hi,I upgraded to v3.39.1 an hour ago just to find out that the panning/zoom is still slow.

However, this could be a bit different problem than others have. If I understand correctly, majority of users reported slow rendering of the vector maps (here and elsewhere). Unlike them I've been having extremely slow Locus responses when panning the raster maps (namely those by SHOCart) thorough all the 3.38.x versions. Unfortunately, the eagerly awaited v3.39 did not bring me the promised massive performance optimizations, and SHOCarts are still slow as hell, if not even slower than before. Instead of smoothly moving, the map waits a second or so, then jumps to a new position. Sometimes jumps once again, but a shorter distance, sometimes it does not move at all and displays an info popup instead.

However, I did not ever notice any problem with vector maps (either LoMaps, ore any other open street ones). Even though I do have a very obsolete phone by today standards, the Lenovo A1000, 4". Which sounds totally illogical to me, as I would guess that the phone needs to compute the vector map view first, then display it. While, in the case of the raster map, phone only needs to copy bitmap. Now, my question is: Did not you guys change yet something else, in addition to the rendering engine? Perhaps reading from the map database? It could explain why the SQLite maps are so slow.

To solve my troubles somehow, I finally downgraded to v3.36.2 which was like a drop of the water of life to my phone. The SHOcart maps panning is seamless again. Can you recommend me please the last version before big changes? Sure I would prefer the newest shiny one, but sadly, whole 3.38.x to 3.39 range does not work well for me.

Michal

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Hi Michal,

sorry to read this. Based on your description, it looks like a problem directly related to map itself, no to some other stuff like overlay, too much points on the map etc. Your explanation that raster maps should be really faster than vector maps is correct.

What to try:

- any online map, it is always also raster map

- disable automatic-loading for offline maps in app settings

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Thank you for the fast answer. I upgraded to 3.39 again (now to the current v3.39.2).


As for - any online map, it is always also raster map:

I tried OSM - Outdoor, OpenHikingMap. It moves smoothly while panning and zooming it. Also the tiles are displayed quickly as long as I have a fast enough connection


As for - disable automatic-loading for offline maps in app settings:Already tried it before, and retried once again now. The setting does not seem to affect the panning quality neither positively, nor negatively. SHOCars are always fast in the 3.36.2 version (and now I tried the 3.37.2 too, it is fast as well), while the same maps are always slow in the 3.39.x

Then I tried yet another SQLite raster map, the Geodezie Online - Cesky raj. In the 3.39.x, this map somehow stutters when panning, but it is still so-so usable. While the SHOCart only moves by one big jump after a long delay. The difference between the two is - I haven only one Geodezie map (one couple of db files in its directory) and six SHOCarts (six couples of db files in the dir).


A short summary for now:

- 3.36.2, 3.37.2

-- everything equally fast

- 3.39.x

-- vector and online raster maps fast, like in previous Locus versions

-- single SQLite raster map in one directory - slow, but so-so usable

-- multiple SQLite raster maps in one directory - extremely slow, unusable

- automatic-loading for offline maps

-- on/off does not change the behavior


Does there exist a way to log the SQLite activity system-wide, in Android ?

If so, I could compare it for the 3.37.2 vs 3.39.2 Locus versions.

Otherwise, I am afraid, I have to stick with 3.37.2, until the issue is sorted out :(


Michal

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Hi,

since yesterdays update to version 3.92.2, my rendering problems are gone. It works with Locus maps and osmandromaps as well. Hill shading works well. Different Raster maps as well.


Thank you!

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The latest update has fixed my rendering problem as well, thanks guys!

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I just updated and the maps are so much more responsive now. Excellent! I am extremely happy. Thanks, locus is the best map app there is (again).

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Yes, great! Version 3.39.2 fixed my panning issues too. Many, many thanks for this app!

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Hi guys,


4 positive responses on new version regard slow maps, this is really positive result, thanks too :).


And one negative, sorry to read it Michal (@hpmickey). I've copied your two posts to separate private topic so we may discuss it there deeper without "spamming" others. I'll write to you tomorrow, thanks.

Anyway generally, problem solved.

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