Currently when I tap, e.g. a POI icon on the map, the map usually moves a little bit, which I assume means that the tap is detected as both a swipe (pan) and a tap. It looks quite distracting. Can you make a distinction between these – some kind tolerance that a swipe has to cross? For comparison, QtLocation gets this right.

https://github.com/ghosalmartin/harbour-uber/blob/master/qml/MapPage.qml

Issue occurs above, not quite sure why but hey ho I could be doing something wrong

Submit issue upstream

add api that would allow to team position given in lat,lon on screen

method to add location with it's id

signal emitted when position on screen changes including visibility flag

remove location tracking for all or specified id

Add flicking gesture.

Related to rinigus/poor-maps#25

Was not trivial, but maybe worth to look into it. Would have to strip the Qt Location interaction and replace with this Mapbox GL QML direct interaction, as done for current mouse area.

Requires exposure of ResourceTransform by Qt bindings (issue has been filed)

Currently, style JSON can be provided by user. However, we may need sometimes to know real JSON that's used. Since the library provides all the signals,we just need to hook it to the plugin and expose JSON as it is loaded from the net.

I am trying to add a PNG image to the map at a given location. The API description is pretty unclear to me regarding images. While I was able to paint a circle as given by the examples, calling map.addImagePath("position-icon", Qt.resolvedUrl("qrc:///graphics/myimage.png")) returns false. According to the docs it should return true when the image was successfully added.

I can add a qml image like so:

   Image {
      z: 100
      source: "qrc:///graphics/myimage.png"
      x: 0
      y: 0
      width: 100
      height: 100
   }

And it will display just fine, so, the image exists, and can be accessed via qrc:///graphics/myimage.png. Why does the function return false?

Also, I fail to understand how I could assign a location to the added image. Do I need to add a source? How do I tie source and image?

Sidequestion:
I guess MapboxMap does not just plain support MapQuickItem so any QML item could be added to the map?

adapt qt location map interaction from qt 5.9

when adding and updating sources

Sometimes it's needed to clear the cache, to make sure the maps are up-to-date. This can be done by removing the file, but that's very inconvenient and I'd like to add a button to WhoGo Maps to clear the cache. Is that something you could add to the API? Can you remove or truncate the cache database while a Mapbox GL app is running?

coordinateZoomForBounds can be used to ensure that we can visualize all given points.

Two interfaces should be done:

• query for given list of coordinates returning zoom and the center

• setter to move the camera position so that the given list of coordinates would be shown.

All this is done for the current pitch and bearing.

when loading style, see if we can get layer loaded before map is fully ready

To avoid cases like piggz/harbour-amazfish#218

each point has it's own name and coordinates

Qt API has functions that should allow to implement offsetting the "center" of the map, as done when in navigation mode. Use setBearing(double degrees, const QPointF &center), moveBy, and methods transferring between pixel and coordinate spaces.

API should allow to set the center and (in ratios) position on the map (like 0.5, 0.25)

Multimodal, https://openrepos.net/content/anarchyintheuk/multimodal, also uses this plugin to display transit stations on a map page.

when starting or changing map, map shows only pois. as soon as its moved, all layers come up. probably have to update it one extra time on loading.

Add tag (QVariant) that can be used for housekeeping info when requesting location.

Hi,

When I build and run the project under QT5.9 on windows 10, I got this error:
👎 error: libcurl development package not found

Please help me.

As reported by @Planetos in rinigus/pure-maps#121

Unfortunately now the app closes/crashes if I zoom into an OSM map as soon as I reach zoom-level 1km - according to the measure in lower left corner. This happens where languages are written from right to left.
Tested on Sailfish on ARM.

Further observations:

I can reproduce it with Lebanon, on phone (SFOS) and on desktop. When using QtLocation based map viewer there is no crash. So, something is wrong with BiDi handling in QMapboxGL version compiled by me. In my version, the library is compiled with use_icu flag that uses platform/default/bidi.cpp to render RTL languages correctly (same didn't work with platform/qt/src/bidi.cpp).

Would have to check how to make platform/qt/src/bidi.cpp to work correctly and not lead to rinigus/pure-maps#121 . I presume that Qt version is used in QtLocation and there it works as expected.

/cc @Planetos

Hello,

I try to test your application but I have #include not found error.

Any idea ?

when following current location as a point source and setting the map center to the location, a flickering is observed as if there is a significant (visible) delay between updating the source and moving the map

As transformations are depending on FBO rendering status, add new property to simplify showing icons with a fixed size

When I tap something on the map, there's a slight delay, maybe half a second or so, before I see the result. So, when tapping a POI icon in WhoGo Maps, the bubble doesn't appear right away and that's a bad user experience. For comparison, the north arrow and attribution icons in WhoGo are perceivably instant. So, where does the delay originate from and can you shorten it?

Currently it is off, depending on pixelRatio and devicePixelRatio

As reported by @jdrescher2006 at TMO:

I have a problem in my app regarding the mapbox plugin. (https://github.com/jdrescher2006/Laufhelden)

After loading an autosave file, I would go through all recorded positions and then add each coordinate to an array. You can see the for statement in line 118 (https://github.com/jdrescher2006/Laufhelden/blob/17153d2ba4bab65c8a52cd90bff161ee3b0ac48f/qml/pages/RecordPage.qml#L118).
Then in line 632, I would add each coordinate point to the map track.

And this line 632 is the problem. If the autosave is big enough e.g. >7000 coordinate points, the app will crash. Sometimes my phone even reboots then. Do you have an idea what could cause the problem?

Originally Posted by rinigus: And one more question: does it mean that you call updateSourceLine 7000 times (once per each point) during startup or is it all factored into one call?

That's correct, 7000 times during startup. And then somewhere in between it gets stuck and crashs.

While during workout it is called once every second. And it seems that this also leads to the crash after 2 hours or something.

Add support for runtime styling. In particular, we need to be able to change map language.

In preparation to Mapbox GL update, make linking and curl+openSSL handling optional.

With raster sources, I'm seeing the Sailfish ambience background where no tiles have yet been loaded. It's easiest to test by setting a bogus tile URL, where all tile downloads fail. A good default would be "#e6e6e6", which works well for most light background maps.

A user of Poor Maps GL has noticed variability in addition new POI by long press. Have to look into it and check whether we can reduce processing.

Maybe, the coordinate can be checked for and cached already while holding a point before full event gets initiated.

When MouseArea is developed, make it a part of the plugin. Have to think through the signals that are emitted by it.