3D Cylinder

kev · Post by **kev** » Thu Sep 01, 2005 1:43 pm

Last April I had some discussions about trying to create a 3D cylinder. (see the thread at: http://www.teechart.net/support/modules ... 5d28336ef1)

I never really got the thing to work. I cannot find the BCB 6 examples that were posted on the attachments group. Marjan, con you post them again or tell me where to find them if they are still posted somewhere. Or, if you have some new ideas on how to do this, I would be very interested.

In general, if someone has any idea how to use OpenGL to take a very large array of x,y,z datapoints and generate a 3D hollow cylinder, please let me know. As my previous posts indicated, I tried a 3d point series and it sort of works, but there are gaps between the points and it is almost impossible to rotate, tilt etc in real time due to the amount of data. What I really need to do is use the OpenGL canvas and just draw the pixels... I think. I am told that the OpenGL routines can do this "easily", but I have no experience in this area. Can the TOpenGL be used for this? If so, how?

Thanks for any help,

Kev

Narcís · Post by **Narcís** » Thu Sep 01, 2005 1:57 pm

Hi Kev,

Marjan's demo is at [url]news://www.steema.net/steema.public.attachments[/url] newsgroup. Is it pretty easy to access them as you only have to configure www.steema.net as the news server in your newsreader. Once you have the newsgroups on your newsreader just subscribe to steema.public.attachments. The message is called "Rev demo for Kev (C++ Builder code)" and its date is 7th April 2005.

If you have problems accessing the newsgroups I can also e-mail you that example.