Difference between revisions of "LlGetRot"
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|func_footnote | |func_footnote | ||
|return_type=rotation | |return_type=rotation | ||
|return_text=that is the prim's rotation relative to the [[Viewer coordinate frames#Region|region]] | |return_text=that is the prim's rotation relative to the [[Viewer coordinate frames#Region|region]]'s axes. | ||
|constants | |constants | ||
|spec | |spec | ||
|caveats | |caveats= | ||
* [[llGetRot]] incorrectly reports the avatars rotation when called from the root of an attached object, use [[llGetLocalRot]] for root prims, instead | |||
** [[llGetRot]] will return an accurate facing for Avatars seated or in mouselook, but only a rough direction otherwise when called from an attached prim. | |||
**When called in an attachment's child prim, the reported rotation will only be visually correct if the object's root is attached to [[ATTACH_AVATAR_CENTER]], at [[ZERO_ROTATION]]. Moving the attachment's root or changing the attachment point will not affect the reported rotation. Avatar animation is invisible to the simulator, so it also does not affect the reported rotation. Also see [[Rotation#Single_or_Root_Prims_vs_Linked_Prims_vs_Attachments|Single or Root Prims vs Linked Prims vs Attachments]]. | |||
|examples= | |examples= | ||
< | <source lang="lsl2"> //-- rotates an object to face the nearest cardinal direction (N,E,S,W) | ||
//-- assumes build is aligned to root object facing | //-- assumes build is aligned to root object facing | ||
| Line 22: | Line 25: | ||
touch_start( integer vIntTouches ) | touch_start( integer vIntTouches ) | ||
{ | { | ||
//-- convert our rotation to x/y/z | //-- convert our rotation to x/y/z radians | ||
vector | vector vRadBase = llRot2Euler( llGetRot() ); | ||
//-- round the z-axis to the nearest 90deg | //-- round the z-axis to the nearest 90deg (PI_BY_TWO = 90deg in radians) | ||
llSetRot( llEuler2Rot( <0.0, 0.0, llRound( vRadBase.z / PI_BY_TWO ) * PI_BY_TWO > ) ); | |||
llSetRot( llEuler2Rot( <.0, .0, | |||
} | } | ||
}</ | }</source> | ||
|helpers | |helpers | ||
|also_header | |also_header | ||
| Line 39: | Line 41: | ||
{{LSL DefineRow||[[llSetPrimitiveParams]]|}} | {{LSL DefineRow||[[llSetPrimitiveParams]]|}} | ||
{{LSL DefineRow||[[llSetLinkPrimitiveParams]]|}} | {{LSL DefineRow||[[llSetLinkPrimitiveParams]]|}} | ||
{{LSL DefineRow||[[llSetLinkPrimitiveParamsFast]]|}} | |||
|also_tests | |also_tests | ||
|also_events | |also_events | ||
|also_articles | |also_articles | ||
|also_footer | |also_footer | ||
|notes | |notes | ||
|mode | |mode | ||
|deprecated | |deprecated | ||
| Line 49: | Line 52: | ||
|cat1=Movement | |cat1=Movement | ||
|cat2=Rotation | |cat2=Rotation | ||
|cat3 | |cat3=Prim | ||
|cat4 | |cat4 | ||
|cat5 | |cat5 | ||
|cat6 | |cat6 | ||
}} | }} | ||
Latest revision as of 09:41, 1 July 2015
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Summary
Function: rotation llGetRot( );| 0.0 | Forced Delay |
| 10.0 | Energy |
Returns a rotation that is the prim's rotation relative to the region's axes.
Caveats
- llGetRot incorrectly reports the avatars rotation when called from the root of an attached object, use llGetLocalRot for root prims, instead
- llGetRot will return an accurate facing for Avatars seated or in mouselook, but only a rough direction otherwise when called from an attached prim.
- When called in an attachment's child prim, the reported rotation will only be visually correct if the object's root is attached to ATTACH_AVATAR_CENTER, at ZERO_ROTATION. Moving the attachment's root or changing the attachment point will not affect the reported rotation. Avatar animation is invisible to the simulator, so it also does not affect the reported rotation. Also see Single or Root Prims vs Linked Prims vs Attachments.
Examples
//-- rotates an object to face the nearest cardinal direction (N,E,S,W)
//-- assumes build is aligned to root object facing
default{
state_entry()
{
llSay( 0, "Rotate me in edit, then touch to make me face the nearest compass point" );
}
touch_start( integer vIntTouches )
{
//-- convert our rotation to x/y/z radians
vector vRadBase = llRot2Euler( llGetRot() );
//-- round the z-axis to the nearest 90deg (PI_BY_TWO = 90deg in radians)
llSetRot( llEuler2Rot( <0.0, 0.0, llRound( vRadBase.z / PI_BY_TWO ) * PI_BY_TWO > ) );
}
}
See Also
Deep Notes
Signature |
|---|
function rotation llGetRot(); |