diff options
| author | Paul Olav Tvete <paul.tvete@digia.com> | 2013-08-06 14:40:40 +0200 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2013-09-03 10:30:15 +0200 |
| commit | d9776fc6aa8e90926fa024bb64c4e31406d1d091 (patch) | |
| tree | d358729b4651e351f98b508c89ac766de135d7c8 | |
| parent | 4e0ed94eb1281bfeafd377ebc39e84562fbd1f23 (diff) | |
Define the sensor coordinate system unambiguously
All illustrations in the documentation show devices with phone
form factors, i.e. portrait orientation. Some tablets have a native
landscape orientation. It is not clear from the documentation
if the sensor coordinate system should be relative to the portrait
orientation or the native orientation.
This change defines the native orientation as the canonical orientation.
Task-number: QTBUG-32144
Change-Id: I870cb3c9b5aec04f2ed8394a4407b53b888e82c3
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
| -rw-r--r-- | src/sensors/doc/src/qtsensors-cpp.qdoc | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/sensors/doc/src/qtsensors-cpp.qdoc b/src/sensors/doc/src/qtsensors-cpp.qdoc index 2f60592a..5157ddad 100644 --- a/src/sensors/doc/src/qtsensors-cpp.qdoc +++ b/src/sensors/doc/src/qtsensors-cpp.qdoc @@ -56,7 +56,9 @@ Where rotation around an axis is used, the rotation shall be expressed as a Righ \image sensors-coordinates3.jpg -In general, sensor data is oriented to the top of the device. If values are to be displayed on +In general, sensor data is oriented relative to \l QPlatformScreen::nativeOrientation, i.e +to the top of the device when the device is held in its natural orientation (normally +when the device logo appears the right side up). If values are to be displayed on the screen the values may need to be transformed so that they match the user interface orientation. A sensor may define its data as being oriented to the UI. This will be noted in the documentation for the sensor. |