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- Overview
- Gesture variable
- Example
- Retrieving gesture information
The Gesture variable is used to retrieve the gesture parameters (swipe): direction, speed, distance, ... This variable can be used: - in the swipe event of elements in a Looper control, to know the swipe direction.
- in multitouch events (zoom, scroll and swipe) to avoid declaring parameters in the events.
The Gesture variable includes the following elements: | | | Real Angle (expressed in degrees) corresponding to the inclination of an Apple Pencil in relation to the tablet plan. This variable is filled in the event "Pressed/Left button down" only. | | Real Azimuth angle (expressed in degrees) of an Apple Pencil in relation to the mark of current control. This variable is filled in the event "Pressed/Left button down" only. | | Integer constant
Direction of the gesture. Can correspond to one of the following constants:- BottomToTop: Swipe from bottom to top.
- RightToLeft: Swipe from right to left.
- LeftToRight: Swipe from left to right.
- TopToBottom: Swipe from top to bottom.
This variable is filled in Scroll and Swipe events. | | For a scroll: value of the move (in pixels) in the direction specified by Gesture.Direction. For a pinch zoom gesture: value of the spacing (in pixels) between two contact points. This variable is filled in Scroll and Pinch zoom events. | | Real Pressure during a press. This pressure can take a value included between 0,0 and 1,0. This variable is filled in the event "Pressed/Left button down" only. | | Real Maximum pressure during a press. This pressure can take a value included between 0,0 and 1,0. This variable is filled in the event "Pressed/Left button down" only. | | Integer Speed of the move in the direction specified by Gesture.Direction.
This speed is expressed in pixels per second. This variable is filled in Swipe events. |
Retrieving gesture information
// Scroll with Finger event of IMG_Image
SWITCH Gesture.Direction
CASE RightToLeft: RADIO_Direction = 1
CASE LeftToRight: RADIO_Direction = 2
CASE TopToBottom: RADIO_Direction = 3
CASE BottomToTop: RADIO_Direction = 4
END
EDT_Speed = Gesture.Speed
EDT_Distance = Gesture.Distance
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