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llRot2Euler

function
Function syntax
vector llRot2Euler(
  1. rotation q// Rotation to convert.
);
Returns
vector
Energy
10

Returns a vector that is the Euler representation (roll, pitch, yaw) of quat, with each component expressed in radians.

How to use
vector result = llRot2Euler(ZERO_ROTATION);

The Euler angle vector (in radians) is converted from a rotation by doing the rotations around the 3 axes in Z, Y, X order.

  • Angles greater than PI radians (180 degrees) are returned as negative angles.
Example 1
default
{
state_entry()
{
rotation input = llGetRot();
llSay(0, "The Rot2Euler of " + (string)input + " is: " + (string) llRot2Euler(input) );
}
}
Example 2
// This script rotates a prim by 15 degrees each time the prim is touched
// While not the best way of achieving the result,
// this script demonstrates the use of llRot2Euler and llEuler2Rot
// and the use of more human-friendly degrees rather than radians
5 collapsed lines
default
{
touch_start(integer total_number)
{
// Get the object's current rotation as a quarternion
rotation rot = llGetRot();
// Convert the rotation to a euler with roll, pitch, and yaw in radians
vector euler = llRot2Euler(rot);
// convert the angles from radians to degrees
euler *= RAD_TO_DEG;
12 collapsed lines
// Add 15 degrees on the Z axis
euler += <0, 0, 15>;
// Say the current euler values in degrees
llSay(0, (string) euler);
// convert degrees back to radians
euler *= DEG_TO_RAD;
// Convert the euler back to a rotation quarternion
rot = llEuler2Rot (euler);
// Apply the updated rotation to the prim
llSetRot( rot );
}
}
Original wiki source

Some wiki templates and tables need their original context. View this article on the Second Life Wiki. Technical wording and examples are retained from the source; historical guidance may differ from current behavior.

From the Second Life Wiki

Community documentation adapted from LlRot2Euler, by Linden Research, Inc. and contributing residents.View contributors and history.

Imported wiki revision:

Licensed under CC BY-SA 3.0. Last wiki edit: .Formatting and links have been adapted for this site; API metadata follows the LSL definitions.