function
Function syntax
float llVecMag(vector vec// Vector to evaluate.
);- Returns
float- Energy
- 10
Returns a float that is the magnitude of the vector (the undirected non-negative distance from vec to <0.0, 0.0, 0.0>).
float result = llVecMag(ZERO_VECTOR);Examples
Section titled “Examples”Example 1
default { state_entry() { vector input = <1.0,2.0,3.0>; llSay(0,"The magnitude of "+(string)input+" is "+(string)llVecMag(input) + "."); }}- Mathematically the formula for vector magnitude is
llSqrt(vec.x * vec.x + vec.y * vec.y + vec.z * vec.z)- Knowing this, there are ways to circumvent
llVecMagfor more efficient code. - vec*vec < 16.0 is over twice as fast as
llVecMag(vec)< 4.0. - vec*vec < (dist*dist) is about twice as fast as
llVecMag(vec)< dist. - This can work in many other ways, too, with other comparisons.
See also
Section titled “See also”Functions
Section titled “Functions”Original wiki source
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