ogre3d or QOpenGL ? for CAD like application

[chad]

Hello,
I am a new user of ogre. Just did basic tutorial 2 until now.
And I am starting wondering: I don't want to create a game but an application where the user can do these main things:
- Create a part that would be added to the 3d view.
- A part is the assembly of points, joined by lines and/or circles.
- User can translate and rotate parts
- The parts will have to move during simulation when the user is post-processing...

So I didn't yet see the advantage of ogre compared to basic QopenGL for my type of application.

For the expert more mature users, what do you think ?

Thanks

[areay]

Ogre is just a rendering engine. It does the OpenGL (or directX) so you don't have to. It'll also let you manage on-screen objects easier than doing it in a raw graphics library. Think about things like scenenodes and the ability to parent objects to others. Then if you want to do animation it'll also make that easier.

[chad]

thanks.
I was wondering if it is easier in ogre also to create part meshes constituted of only points/lines/circles ? or it is not the strong points of ogre

[Kojack]

It's easy to generate points or lines in code, ogre has a ManualObject class that gives a fairly easy (inspired by opengl) interface to building meshes. Circles are just a heap of lines.