Difference between revisions of "Interpolation/Linear/Vectors"
< Interpolation | Linear
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| Line 3: | Line 3: | ||
|func=pLin | |func=pLin | ||
|p1_type=list|p1_name=v | |p1_type=list|p1_name=v | ||
|p2_type=float|p2_name=t | |p2_type=float|p2_name=t|p3_desc=Ranges between [0, 1]. | ||
|p3_type=integer|p3_name=Loop | |p3_type=integer|p3_name=Loop|p3_desc=Whether the list is a curved line or loops into a closed shape. | ||
|return_type=vector | |return_type=vector | ||
|return_value=returns the interpolation of a list of vectors. | |return_value=returns the interpolation of a list of vectors. | ||
Revision as of 12:09, 16 September 2011
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Summary
Function: vector pLin( list v, float t, integer Loop );
Linearly interpolates between two vector points in a list of vectors that define a path.
Returns a vector
| • list | v | |||
| • float | t | |||
| • integer | Loop | – | Whether the list is a curved line or loops into a closed shape. |
Specification
<lsl>vector pLin(list v, float t, integer Loop) {
integer l = llGetListLength(v); t *= l-1; integer f = llFloor(t); t -= f; return llList2Vector(v,pIndex(f,l,Loop))*(1-t) + llList2Vector(v,pIndex(f+1,l,Loop))*t;
} integer pIndex( integer Index, integer Length, integer Loop) {
if(Loop) return Index % Length; if(Index < 0) return 0; if(Index > --Length) return Length; return Index;
} // Released into public domain. By Nexii Malthus.</lsl>
Examples
<lsl></lsl>