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This patch changes the implementation of the scenegraph-based
mapobjects (those created by QGeoTiledMap) to be the recently
introduced one sporting shader-based map projection.
This is much faster than the previous, but may introduce small glitches
at this time (mostly on minified polylines).
Adding polyline LOD simplification will solve this problem.
Compared to equivalent Map Items (that is, Map Items backed by the
same underlying implementation), map objects now are approximately
1.5x faster.
This measure has been gathered using medium-size polygons (contained
in the file 10_countries.json from the geojson_viewer example).
The difference is caused by the additional QtQuick geometry related
operations (essentially projecting the bounding box for each item)
present in MapItems.
Smaller polygons may therefore yield larger improvements, larger polygons
the opposite.
Change-Id: I3fc92b02b74a3a4d001e69755949a98f80d8a3d3
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
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In this way MapObjects become a little closer to MapItems,
and this property can be used to, for example, center the map
on one specific object or object group.
Fixes: QTBUG-69640
Change-Id: I4dbead9e670bf5d1eeaccb2bd09d956b8de7da87
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
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The labs feature will still be controlled by location-labs-plugin
config option. They will simply come from the QtLocation module, and
be exposed to QML via the additional qml plugin in
imports/locationlabs.
Change-Id: I133d625708e78ba5d8121a95e45142aae5ec274b
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
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