Difference between revisions of "LlDetectedTouchBinormal"
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|func_id=341|func_sleep=0.0|func_energy=10.0 | |func_id=341|func_sleep=0.0|func_energy=10.0 | ||
|func=llDetectedTouchBinormal | |func=llDetectedTouchBinormal | ||
|return_type=vector|return_text=that is the surface binormal (tangent to the surface pointing along the U direction of tangent space) where the touch event was triggered. | |return_type=vector|return_text=that is the surface binormal (tangent to the surface pointing along the U direction of tangent space) where the touch event was triggered. Along with [[llDetectedTouchNormal]], this information can be used to find the [http://en.wikipedia.org/wiki/Tangent_space tangent space] at the touch location. (To find the other tangent vector, cross this vector with the normal.) | ||
|p1_type=integer|p1_name=index | |p1_type=integer|p1_name=index | ||
|func_footnote=For the {{LSLGC|Touch|touch}} category of events only. The prim that was touched may not be the prim receiving the event, use [[llDetectedLinkNumber]] to check for this; likewise you can use [[llDetectedTouchFace]] to determine which face was touched. | |func_footnote=For the {{LSLGC|Touch|touch}} category of events only. The prim that was touched may not be the prim receiving the event, use [[llDetectedLinkNumber]] to check for this; likewise you can use [[llDetectedTouchFace]] to determine which face was touched. | ||
Revision as of 16:20, 4 March 2010
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Summary
Function: vector llDetectedTouchBinormal( integer index );| 0.0 | Forced Delay |
| 10.0 | Energy |
Returns a vector that is the surface binormal (tangent to the surface pointing along the U direction of tangent space) where the touch event was triggered. Along with llDetectedTouchNormal, this information can be used to find the tangent space at the touch location. (To find the other tangent vector, cross this vector with the normal.)
| • integer | index | – | Index of detection information |
index does not support negative indexes. For the touch category of events only. The prim that was touched may not be the prim receiving the event, use llDetectedLinkNumber to check for this; likewise you can use llDetectedTouchFace to determine which face was touched.
Specification
llDetected* functions only work if called from within Detection events (collision, collision_start, collision_end, sensor, touch, touch_start, touch_end) or in functions called by Detection events. They will fail silently and return unusable values if called during other events.
Caveats
- If index is out of bounds the script continues to execute without an error message.
- Events that enable the llDetected* functions always return at least one detected item.
- TOUCH_INVALID_VECTOR is returned when...
- The avatar's viewer does not support face touch detection.
- To check if face touch detection is supported check the return of llDetectedTouchFace.
- The touch has moved off the surface of the prim.
- The event triggered is not a touch event.
- The avatar's viewer does not support face touch detection.
Examples
See Also
Events
| • | touch_start | |||
| • | touch | |||
| • | touch_end |
Functions
| • | llDetectedLinkNumber | |||
| • | llDetectedTouchFace | |||
| • | llDetectedTouchST | |||
| • | llDetectedTouchUV | |||
| • | llDetectedTouchPos | |||
| • | llDetectedTouchNormal |
Articles
| • | Detected |
Deep Notes
History
- Introduced in Viewer
SVN:870 r92872 Branch:Release Wednesday, 23 July 2008, no server support, no viewer binary released. - Server support available on preview grid in Second Life Beta Server 1.24, client support in Preview Grid viewer 1.20.15 (93532)
Footnotes
- ^ The exception is no_sensor but it doesn't enable llDetected* functions.
- ^ Like all event parameters, the user can overwrite the initial value.
Signature |
|---|
function vector llDetectedTouchBinormal( integer index ); |