textmode.js / input / touch / TouchPosition

Interface: TouchPosition

Touch position expressed both in grid and client coordinates.

The grid coordinate system uses center-based coordinates matching the rendering space:

• (0, 0) is the center cell of the grid
• Negative X values are to the left of center
• Positive X values are to the right of center
• Negative Y values are above center
• Positive Y values are below center

When the touch is outside the grid bounds, x and y are set to Number.NEGATIVE_INFINITY to indicate an invalid/outside position.

Extends

• GridPosition

Properties

Property	Type	Description	Inherited from
clientX	number	Client X coordinate in CSS pixels	-
clientY	number	Client Y coordinate in CSS pixels	-
id	number	Identifier provided by the browser for a touch point	-
pressure?	number	Touch pressure (0-1) when supported	-
radiusX?	number	Contact ellipse radius on the X axis in CSS pixels	-
radiusY?	number	Contact ellipse radius on the Y axis in CSS pixels	-
rotationAngle?	number	Contact ellipse angle in radians when provided	-
x	number	The X coordinate (column), often relative to the grid's center.	GridPosition.x
y	number	The Y coordinate (row), often relative to the grid's center.	GridPosition.y