Implement zooming to cursor

Zooming to cursor is now default operating mode of
the default input handler.

Task-number: QTRD-3263
Change-Id: I5699fc0ce7393059538972cd52f31f06d87e3d8d
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/datavisualization/doc/src/qtdatavisualization-qml-abstractdeclarative.qdoc b/src/datavisualization/doc/src/qtdatavisualization-qml-abstractdeclarative.qdoc
index 5f06d404..3dc5beea 100644
--- a/src/datavisualization/doc/src/qtdatavisualization-qml-abstractdeclarative.qdoc
+++ b/src/datavisualization/doc/src/qtdatavisualization-qml-abstractdeclarative.qdoc
@@ -385,3 +385,25 @@
  *
  * \sa ValueAxis3D::labelFormat
  */
+
+/*!
+ * \qmlproperty vector3d AbstractGraph3D::queriedGraphPosition
+ * \since QtDataVisualization 1.2
+ *
+ * This read-only property contains the latest graph position values along each axis queried using
+ * Scene3D::graphPositionQuery. The values are normalized to range \c{[-1, 1]}.
+ * If the queried position was outside the graph bounds, the values
+ * will not reflect the real position, but will instead be some undefined position outside
+ * the range \c{[-1, 1]}. The value will be undefined before any queries are made.
+ *
+ * There isn't a single correct 3D coordinate to match to each specific screen position, so to be
+ * consistent, the queries are always done against the inner sides of an invisible box surrounding
+ * the graph.
+ *
+ * \note Bar graphs only allow querying graph position at the graph floor level,
+ * so the Y-value is always zero for bar graphs and the valid queries can be only made at
+ * screen positions that contain the floor of the graph.
+ *
+ * \sa Scene3D::graphPositionQuery
+ */
+