Wed, 17 Dec 2014 16:04:31 +0100 David van rijn <davidvanr...@gmail.com>:
Hello,
Hi!
I am writing a qml component to display a slippy map (eg. google maps).
(You can look at the code at https://github.com/unsanded/harbour-mapp.)
The idea is to be able to add maps in qml by just typing something like:
SlippyMap{
GoogleMapsProvider{
apiKey: "blabla"
}
}
I have a few questions about this:
- Can it, at some point, become a library for others to use?
Could be certainly interesting and useful! :)
- What is the best way to implement offline maps/routing?
For offline routing the routino routing utility[0] currently looks like
the best bet for Sailfish.
I have already managed to build it's package for Sailfish[1] and it
appears to be working fine. :)
Another candidate could be the Monav[2] routing daemon, but it's
upstream is dead, it depends on Qt 4 and its source
code has been bit-rotting rather badly.
As for offline map rendering, the Mapbox GL native widget[3] looks like
the best bet, if it could be wrapped in a QML element! :)
I even suggested the QML integration to the Mapbox people, but they
unfortunately replied that they are not interested in doing that
themselves (most probably not to canobalize their iOS & Android SDKs
with a superio solution ;-) ).
- Is anyone eager to join the project?
- any other feedback?
Many current Sailfish OS applications are using the QML-only PinchMap
QML element, originally from AGTL, for example:
* modRana[4]
* FourSail[5]
On the other hand the Poor Maps application has a custom solution based
on enhanced QtLocation Map element.
So maybe have a look how these work and what features these applications
expect as inspiration work on your project. :)
Cheers,
David
Best Wishes
Martin Kolman
(main modRana developer)
[0] http://www.routino.org/
[1] https://build.merproject.org/package/show/home:MartinK:sailfish/routino
[2] https://code.google.com/p/monav/
[3] https://github.com/mapbox/mapbox-gl-native/
[4]
https://github.com/M4rtinK/modrana/blob/master/modules/gui_modules/gui_qt5/qml/PinchMap.qml
[5]
https://gitorious.org/foursail/foursail/source/31644f69c670f5f012f98bee641e1b7e50ba4e1f:qml/PinchMap.qml
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