finding z

[xteraco]

http://68.102.38.232:8080/forum/show.php...191654&u=1

[Dr_Davenstein]

When you want to rotate around the Z-axis, you don't actually do anything to Z... I'm not sure if you mean rotate, translate or what though... There are many operations you can do in a sub like that.


It's better to use matrices, but this is the general formula.

Code:

x' = x*cos radian - y*sin radian
y' = x*sin radian + y*cos radian
z' = z

[xteraco]

geez, heh... here we go.. oops

ok, if i make a sub for a 3d line command, assuming i'm using screen 13, how would i calculate z inside the sub, liek

sub 3dline(x,y,z)
z = ???
end sub

... i know i saw the equasion somewhere... crap

[Anonymous]

well i dont know much to anything about 3d, but im assuming if youre going to draw a 3d line youre going to need

X1 X2
Y1 Y2
Z1 Z2

not just xyz...