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The BLOCKS SDK
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The BLOCKS SDK
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Structure used to describe touch properties.
Public Attributes | |
| int | index |
| A touch index, which will stay constant for each finger as it is tracked. More... | |
| float | x |
| The X position of this touch on the device, in logical units starting from 0 (left). More... | |
| float | xVelocity |
| An approximation of the velocity at which the X value is changing, measured in units/second. More... | |
| float | y |
| The Y position of this touch on the device, in logical units starting from 0 (top). More... | |
| float | yVelocity |
| An approximation of the velocity at which the Y value is changing, measured in units/second. More... | |
| float | z |
| The current pressure of this touch, in the range 0.0 (no pressure) to 1.0 (very hard). More... | |
| float | zVelocity |
| The rate at which pressure is currently changing, measured in units/second. More... | |
| Block::Timestamp | eventTimestamp |
| The timestamp of this event, in milliseconds since the device was booted. More... | |
| bool | isTouchStart |
| True if this is the first event for this finger/index. More... | |
| bool | isTouchEnd |
| True if this is the final event as this finger/index is lifted off. More... | |
| Block::UID | blockUID |
| The ID of the block that generated this touch. More... | |
| float | startX |
| The initial X position of the touchStart event corresponding to this finger/index. More... | |
| float | startY |
| The initial Y position of the touchStart event corresponding to this finger/index. More... | |
| int TouchSurface::Touch::index |
A touch index, which will stay constant for each finger as it is tracked.
| float TouchSurface::Touch::x |
The X position of this touch on the device, in logical units starting from 0 (left).
See Block::getWidth() for the maximum X value on the device.
| float TouchSurface::Touch::xVelocity |
An approximation of the velocity at which the X value is changing, measured in units/second.
This is intended as a useful hint to help with gesture detection, but may be 0 if the device doesn't provide this data.
| float TouchSurface::Touch::y |
The Y position of this touch on the device, in logical units starting from 0 (top).
See Block::getHeight() to find the maximum Y on the device.
| float TouchSurface::Touch::yVelocity |
An approximation of the velocity at which the Y value is changing, measured in units/second.
This is intended as a useful hint to help with gesture detection, but may be 0 if the device doesn't provide this data.
| float TouchSurface::Touch::z |
The current pressure of this touch, in the range 0.0 (no pressure) to 1.0 (very hard).
| float TouchSurface::Touch::zVelocity |
The rate at which pressure is currently changing, measured in units/second.
This is intended as a useful hint to help with gesture detection, but may be 0 if the device doesn't provide this data.
| Block::Timestamp TouchSurface::Touch::eventTimestamp |
The timestamp of this event, in milliseconds since the device was booted.
| bool TouchSurface::Touch::isTouchStart |
True if this is the first event for this finger/index.
| bool TouchSurface::Touch::isTouchEnd |
True if this is the final event as this finger/index is lifted off.
Referenced by TouchList< Type >::updateTouch().
| Block::UID TouchSurface::Touch::blockUID |
The ID of the block that generated this touch.
| float TouchSurface::Touch::startX |
The initial X position of the touchStart event corresponding to this finger/index.
| float TouchSurface::Touch::startY |
The initial Y position of the touchStart event corresponding to this finger/index.