[SailfishDevel] QtLocation | Qt 5.6 - alternatives (PinchMap)

[Peter Pykäläinen]

Thanks for sharing, great info!

BR,

// Pete 

Martin Kolman kirjoitti tiistai 3. tammikuuta 2017:
> Mon, 02 Jan 2017 01:09:49 +0000 Helicalgear .:
> > Hi,
> >
> > Qt5.2 itself provided the "QtLocation" as you see.
> > But, unfortunately, QtLocation is not allowed to use for 3rd party 
> > apps officially, right now.
> >
> > Please see "Sailfish FAQ"
> > https://harbour.jolla.com/faq#QML_API
> > And the list of modules which can be used by 3rd party apps.
> > https://github.com/sailfish-sdk/sdk-harbour-rpmvalidator/blob/master/allowed_qmlimports.conf
> >
> > The number of listed modules is increasing time by time.
> > I think we have no choice but to wait for that the QtLocation add to 
> > the list if you want to release your app officially (by Jolla Store).
> There are other - possibly less convenient but Jolla Store copamatible - 
> ways of showing a map on Sailfish OS than Qt Location.
> 
> Probably the most used Qt Location alternative is the PinchMap QML 
> element, which was originally written for the Qt port of AGTL (Advanced 
> Geocaching Tool for Linux) but has since found its way to many 
> mapping-related applications on Sailfish OS and elsewhere. It usually 
> supports just display of tiled map layers and simple POI, but can be 
> quite easily extended & tweaked it's implemented completely in QML. 
> Thanks to this it's also totally independent on Qt Location and is 
> already used by applications in Jolla Store, such as modRana or Foursail.
> 
> As for where to "get" the PinchMap QML element - at the moment its 
> basically being used as a copy-lib with various applications including 
> the PinchMap.qml file as part of their source code, usually with various 
> twekas, changes and improvements. These are the PinchMap.qml versions I 
> know about:
> 
> https://github.com/webhamster/advancedcaching/blob/master/advancedcaching/qml/PinchMap.qml
> - this is the basically the original version targeting 
> Harmattan/N9/QtQuick 1.1
> 
> https://github.com/Maledictus/foursail/blob/master/qml/PinchMap.qml
> - PinchMap as used by Foursail (QtQuick 2.0)
> - should be fairly self contained
> 
> https://github.com/jmlich/devconf-sailfish/blob/master/qml/PinchMap.qml
> https://github.com/rh-lab-q/confla-android/blob/master/PinchMap.qml
> - these look like possibly a bit more modern versions with some 
> app-specific tweaks
> 
> https://github.com/M4rtinK/modrana/blob/master/modules/gui_modules/gui_qt5/qml/PinchMap.qml
> - PinchMap as used by current stable modRana release branch
> - quite heavily tweaked and improved
> - uses a Python backend via PyOtherSide for tile download/storage/lookup
> - has some support for showing POI markers and routes
> 
> https://github.com/M4rtinK/modrana/blob/master-better_tile_display/modules/gui_modules/gui_qt5/qml/PinchMap.qml
> - further improved PinchMap version
> - provides flicker free & more efficient tile display support via a 
> custom QML-side tile data model
> - still has some bugs, especially in its coordinate conversion functions
> - will be part of a modRana stable release once the bugs are ironed out
> 
> 
> Other than PinchMap, there is also Maep which I *think* might be also 
> adapted as a map widget:
> https://github.com/dcaliste/maep-qt
> 
> Also I guess worst case one could also use a web-view and some of the 
> Javascript based tiled-map frameworks such as Leaflet.
> 
> > Or, I think that you can try to release your app by other way like 
> > OpenRepos ( https://openrepos.net/ ).
> >
> > Best regards,
> >
>

-- 
// Peter Pykäläinen
Lähetetty Jolla C:stä