Difference between revisions of "LlRot2Angle"
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|deepnotes=<lsl>float | |deepnotes=<lsl>float Rot2Angle(rotation a) | ||
{ | { | ||
return llAcos(llFabs(a.s) / llSqrt(a.x * a.x + a.y * a.y + a.z * a.z + a.s * a.s)) * 2.0; | return llAcos(llFabs(a.s) / llSqrt(a.x * a.x + a.y * a.y + a.z * a.z + a.s * a.s)) * 2.0; | ||
}</lsl> | }</lsl> | ||
}} | }} | ||
Revision as of 07:52, 16 March 2009
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Summary
Function: float llRot2Angle( rotation rot );| 0.0 | Forced Delay |
| 10.0 | Energy |
Returns a float that is the rotation angle represented by rot
| • rotation | rot |
Use in conjunction with llRot2Axis.
To undo use llAxisAngle2Rot.
Caveats
This always returns a positive angle <= PI radians, that is, it is the unsigned minimum angle. A rotation of 3/2 PI radians (270 degrees) will return an angle of PI / 2 radians, not -PI / 2.
Examples
See Also
Functions
| • | llAxisAngle2Rot | |||
| • | llRot2Axis | |||
| • | llRot2Up | |||
| • | llRot2Fwd | |||
| • | llRot2Left | |||
| • | llAngleBetween | – | Similar functionality. |
Deep Notes
<lsl>float Rot2Angle(rotation a) {
return llAcos(llFabs(a.s) / llSqrt(a.x * a.x + a.y * a.y + a.z * a.z + a.s * a.s)) * 2.0;
}</lsl>
Signature |
|---|
function float llRot2Angle( rotation rot ); |