Yes, that's right, I meant it should not matter...I'm sorry for typing so bad, didn't re-read to check.
So let me see if I got this right...when you create a new vector with the values (x,y,z), it's basically an arrow pointing from the origin to those coordinates? Or from where is that vector/arrow pointing?
thanx
From: Jørn Cornelius Olsen <[EMAIL PROTECTED]> Reply-To: Discussion list for Java 3D API <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Re: [JAVA3D] class vector3f equals() question Date: Sat, 27 Dec 2003 21:55:59 +0100
Hi Flavius,
A Vector3f contains three values (x, y and z). Therefore a vector denotes a direction (not a position) in 3-space. The equals() method will compare the x-, y- and z-value. You say that it should matter where the vector is in space, but I suspect that you mean that it should _not_ matter where it is. As a vector has no concept of a position (consider it relative) you'll do fine with equals().
To better understand what a vector is consider its counterpart i one-dimensional space: A distance. That too, has no position - only a length.
Of course this is only syntax. If you like, you're free to regard a vector as an absolute position relative to the origin, but in that case I would use Point3f instead.
Regards /Jørn
From: Flavius <[EMAIL PROTECTED]> I was just wondering..the method equals() that compares two vectors...does it says it compare all the values of the vector..but what values are those??
Does it compare the length, direction and?
I kinda need to compare two vectors and see if the lenght and direction are the same, but it should matter where the vector is in space, as long as the lenght and direction are the same, i.e. two parallell lines (vectors)...
Thank you
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