Re: Matrix Wanted

"John C. Bollinger" wrote

<snip>

Thank you for your elaborate answer to my question. I am working on the
implementation of both solutions you gave in Java and I intend to present it to
the group when finished, but there is one point that I do not understand:


> (vxx, vyx, lx, ly declared and defined)
> The distance from point1 to point 4 is simply lx, but the height is more
> complicated. As an intermediate step, it is useful to compute the
> length of the projection of vy onto vx, which is related to the dot
> product of the above vectors:
>
> l = length(vxx * vyx, vxy * vyy) / lx


How do I implement the length(int,int)-function? Is it a function to start with?

-Martijn


.

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