Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much
 
PerlMonks  

Re^2: Rotate a 3D vector

by johnnywang (Priest)
on Oct 18, 2004 at 03:57 UTC ( #400051=note: print w/replies, xml ) Need Help??


in reply to Re: Rotate a 3D vector
in thread Rotate a 3D vector

Just a little change, the formula was not correct (as I pointed out in my previous post in this thread)
# 2 points on a plane my $x = 2; my $y = 1; #yang is the y-angle 0-360 i want to rotate by my $yang = 45; #convert yang to radians $yang = 3.14159265358979*$yang/180; my $xnew = cos($yang)*$x - sin($yang)*y; my $ynew = sin($yang)*$x + cos($yang)*y; print "x=$xnew, y=$ynew\n";

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://400051]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others surveying the Monastery: (5)
As of 2020-11-27 18:04 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found

    Notices?