LlAxes2Rot
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Function: rotation llAxes2Rot( vector fwd, vector left, vector up );
Returns a rotation that is defined by the 3 coordinate axes
• vector fwd
• vector left
• vector up
All three vectors must be mutually orthogonal unit vectors.
Examples
| <source lang="lsl">
default { state_entry()
{
vector i = < 1.0, 0.0, 0.0>;
vector j = < 0.0, 1.0, 0.0>;
vector k = < 0.0, 0.0, 1.0>;
rotation rot = llAxes2Rot( j, -i, k );
llSay(0, (string) (llRot2Euler(rot) * RAD_TO_DEG) );
}
} </source> |
This script displays:
<source lang="lsl">
Object: <-0.00000, 0.00000, 90.00000> </source> |
which shows that (j, -i, k) is obtained by rotating (i, j, k) 90 degrees around z direction.
Notes
Technically, only the first two vectors are needed to define this rotation, which can be done by calling:
| <source lang="lsl">
llAxes2Rot(fwd, left, fwd % left); </source> |