Difference between revisions of "LlGetRootRotation"

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{{LSLFunctionAll|func_id=269|func_sleep=0.0|func_energy=10.0|func=llGetRootRotation|return_type=rotation|func_footnote=Gets the global rotation of the root object of the object script is attached to|return_text|spec|caveats|examples|helpers|related|also|notes}}[[Category:LSL_Functions]][[Category:LSL_Stub]]
{{Issues/VWR-1331}}{{LSL_Function
|func_id=269|func_sleep=0.0|func_energy=10.0
|func=llGetRootRotation|return_type=rotation
|func_footnote
|func_desc
|return_text=that is the [[Viewer coordinate frames#Region|region]] rotation of the root prim of the [[Object|object]].
|spec
|caveats=
* Returns an accurate facing for Avatars seated or in mouselook, but only a rough direction otherwise when called from an attached prim.
* When a seated avatar is in mouselook, its rotation is affected by the camera's rotation. There is no way to get the actual rotation of an avatar while seated in mouselook.
* This function incorrectly (but usefully) returns the avatars region rotation when called in an attachment, use the following instead:
 
<source lang="lsl2">
//  if called only from the root
    llGetLocalRot();
//  if called from in a linked object
    llList2Rot( llGetLinkPrimitiveParams( LINK_ROOT, [PRIM_ROT_LOCAL] ), 0 );
//  this alternative works correctly in all scenarios
    llList2Rot( llGetLinkPrimitiveParams( !!llGetLinkNumber(), [PRIM_ROT_LOCAL] ), 0 );
</source>
|constants
|examples=
Simple example to set region rotation of child prim in unattached link set
<source lang="lsl2">
default
{
  state_entry()
  {
    //Rotate 45 degrees about Y-axis
    rotation globalRot = llEuler2Rot(<0.0, 45.0, 0.0> * DEG_TO_RAD);
    llSetLocalRot(globalRot / llGetRootRotation());
  }
}
</source>
|helpers
|also_functions=
{{LSL DefineRow||[[llGetRot]]|}}
{{LSL DefineRow||[[llGetLocalRot]]|}}
{{LSL DefineRow||[[llGetPrimitiveParams]]|}}
{{LSL DefineRow||[[llGetLinkPrimitiveParams]]|}}
|also_events
|also_tests
|also_articles
|notes=In an attached object, returns region rotation of avatar NOT of the object's root prim.  See [[Rotation#Single_or_Root_Prims_vs_Linked_Prims_vs_Attachments|special cases of rotation]].
|permission
|negative_index
|cat1=Movement
|cat2=Rotation
|cat3=Prim
|cat4
}}

Latest revision as of 02:49, 22 January 2015

Summary

Function: rotation llGetRootRotation( );

Returns a rotation that is the region rotation of the root prim of the object.

Caveats

  • Returns an accurate facing for Avatars seated or in mouselook, but only a rough direction otherwise when called from an attached prim.
  • When a seated avatar is in mouselook, its rotation is affected by the camera's rotation. There is no way to get the actual rotation of an avatar while seated in mouselook.
  • This function incorrectly (but usefully) returns the avatars region rotation when called in an attachment, use the following instead:
//  if called only from the root
    llGetLocalRot();
//  if called from in a linked object
    llList2Rot( llGetLinkPrimitiveParams( LINK_ROOT, [PRIM_ROT_LOCAL] ), 0 );
//  this alternative works correctly in all scenarios
    llList2Rot( llGetLinkPrimitiveParams( !!llGetLinkNumber(), [PRIM_ROT_LOCAL] ), 0 );
All Issues ~ Search JIRA for related Bugs

Examples

Simple example to set region rotation of child prim in unattached link set

default
{
  state_entry()
  {
    //Rotate 45 degrees about Y-axis
    rotation globalRot = llEuler2Rot(<0.0, 45.0, 0.0> * DEG_TO_RAD);
    llSetLocalRot(globalRot / llGetRootRotation());
  }
}

Notes

In an attached object, returns region rotation of avatar NOT of the object's root prim. See special cases of rotation.

See Also

Deep Notes

All Issues

~ Search JIRA for related Issues
   Improve accuracy of avatar's visible rotation

Signature

function rotation llGetRootRotation();