View Full Version : calucurate velocity from two points?
deluxmilkman 12012011, 10:12 AM I need to calculate world space velocity from two positions i have.
vector $position1 = <<1,5,4>>;
vector $position2 = <<5,6,7>>;
vector $velocity = ????? ;
how can i achieve this?
thanks.


berniebernie
12012011, 10:52 AM
I think velocity needs time (v=d/t) but assuminh your time between these two positions is '1', then your velocity is the distance between the two points isn't it ? And the magnitude the speed; so
vector $p1 = <<1,5,4>>;
vector $p2 = <<5,6,7>>;
vector $velocity = <<$p2.x$p1.x,$p2.y$p1.y,$p2.z$p1.z>> ;
float $speed = mag($velocity);
?
NaughtyNathan
12012011, 11:38 AM
or, for simplicities sake:
...
vector $velocity = $p2$p1;
...;)
:nathaN
berniebernie
12012011, 04:47 PM
:blush:
this is filler text
deluxmilkman
12022011, 09:43 PM
:thumbsup: thanks guys.
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