Talk:LlVecDist - Revision history

MartinRJ Fayray: added simpler solution

2013-04-01T18:58:54Z

added simpler solution

← Older revision		Revision as of 11:58, 1 April 2013
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	</lsl>		</lsl>
	--[[User:MartinRJ Fayray\|MartinRJ Fayray]] 11:49, 1 April 2013 (PDT)		--[[User:MartinRJ Fayray\|MartinRJ Fayray]] 11:49, 1 April 2013 (PDT)

			Here's a simpler solution using cross products:
			<lsl>
			float fDistanceOfPointFromLine(vector veca, vector vecb, vector vecc)
			{ //vecc is the point
			float A = llVecMag((veca-vecc)%(vecb-vecc));
			return A / llVecMag(vecb-veca);
			}
			</lsl>
			--[[User:MartinRJ Fayray\|MartinRJ Fayray]] 11:58, 1 April 2013 (PDT)

MartinRJ Fayray: example script fDistanceOfPointFromLine

2013-04-01T18:49:16Z

example script fDistanceOfPointFromLine

New page

===Example script to calculate the distance of a vector-point from a 'line' (using Heron's formula)===
<lsl>
float fDistanceOfPointFromLine(vector veca, vector vecb, vector vecc)
{ //vecc is the point (veca and vecb are points on the line)
float a = llVecDist(vecb, vecc); float b = llVecDist(veca, vecc); float c = llVecDist(veca, vecb); float s=(1.0/2.0)*(a+b+c); float hc =(2.0/c)*llSqrt(s*(s-a)*(s-b)*(s-c));
return hc;
}
</lsl>
--[[User:MartinRJ Fayray|MartinRJ Fayray]] 11:49, 1 April 2013 (PDT)