cylinder with a hole

thomas_giusepe · November 9, 2003, 3:08am

Someone there could send me a clue about rendering a cylinder with a hole on it? Thanks in advance.

SirKnight · November 9, 2003, 1:16pm

Hint: Cylindrical Coordinates.

BTW, this is hardly advanced.

-SirKnight

masterpoi · November 9, 2003, 10:43pm

do you mean a tube?

rgpc · November 10, 2003, 1:56am

glBegin(GL_TRIANGLES);
glEnd();

Of course the hole will be really big, but it’s a start.

thomas_giusepe · November 10, 2003, 5:21am

I wanna draw a tube with a hole in its middle surface. Something like that:

0====.=====0

where the “.” represents the tiny/medium hole. To draw the tube open at each extreme I used an OGL quadratic cylinder. Now the point is, how to put a hole on its middle surface? Any clues!? Thnx in advance.

Coconut · November 10, 2003, 5:58am

Do you care about the exact boundary of the hole on the cylinder is?

Andrea_Rossini · November 10, 2003, 7:12am

I think you must make your own drawing function.
You should calculate intersection coords…
mmmh… hard to do, but if you will succeed you kick ass…

knackered · November 10, 2003, 10:54pm

Originally posted by SirKnight:
BTW, this is hardly advanced.
-SirKnight

Unless you have a vagina, thomas?