Difference between revisions of "LlEuler2Rot"
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{{ | {{LSL Function | ||
|func_id=16|func_sleep=0.0|func_energy=10.0 | |func_id=16|func_sleep=0.0|func_energy=10.0 | ||
|func=llEuler2Rot|return_type=rotation|p1_type=vector|p1_name=v | |func=llEuler2Rot|return_type=rotation|p1_type=vector|p1_name=v | ||
| Line 21: | Line 21: | ||
|also_events | |also_events | ||
|also_tests | |also_tests | ||
|also_articles={{LSL DefineRow||{{Wikipedia| | |also_articles={{LSL DefineRow||{{Wikipedia|Euler Angles}}|}} | ||
|notes=<lsl>v/=2; | |notes=<lsl>v/=2; | ||
rotation k = <0.0, 0.0, llSin(v.z), llCos(v.z)> * <0.0, llSin(v.y), 0.0, llCos(v.y)> * <llSin(v.x), 0.0, 0.0, llCos(v.x)>;</lsl> | rotation k = <0.0, 0.0, llSin(v.z), llCos(v.z)> * <0.0, llSin(v.y), 0.0, llCos(v.y)> * <llSin(v.x), 0.0, 0.0, llCos(v.x)>;</lsl> | ||
Revision as of 15:24, 17 February 2012
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Summary
Function: rotation llEuler2Rot( vector v );| 16 | Function ID |
| 0.0 | Forced Delay |
| 10.0 | Energy |
Returns a rotation representation of Euler Angles v.
| • vector | v |
Specification
The Euler angle vector (in radians) is converted to a rotation by doing the rotations around the 3 axes in Z, Y, X order. So llEuler2Rot(<1.0, 2.0, 3.0> * DEG_TO_RAD) generates a rotation by taking a vector pointing along the X axis, first rotating it 3 degrees around the global Z axis, then rotating the resulting vector 2 degrees around the global Y axis, and finally rotating that 1 degree around the global X axis.
Caveats
Examples
<lsl>default {
state_entry()
{
vector input = <73.0, -63.0, 20.0> * DEG_TO_RAD;
rotation rot = llEuler2Rot(input);
llSay(0,"The Euler2Rot of "+(string)input+" is: "+(string)rot );
}
}</lsl>
Notes
<lsl>v/=2; rotation k = <0.0, 0.0, llSin(v.z), llCos(v.z)> * <0.0, llSin(v.y), 0.0, llCos(v.y)> * <llSin(v.x), 0.0, 0.0, llCos(v.x)>;</lsl>
