How to design a 3D cube by using QPqinter?

Please tell me how to design 3 cube by using QPainter?
I need to design a line that will look as in 3D ,so i think that if i create the line in a cube
, then it can be possible.
please provede me some help.

I don't understand clearly. Are you (1) trying to create a 3-D looking cube using lines? Or (2) trying to create a 3-D looking line, with a square cross-section? And either way, what is determining the position and orientation of the cube or line you wish to draw -- what control information do you have?

I just want to make a 3D looking line.
please if you can help....

So you want a line or a cube? Or maybe you want to project a 3D line onto a 2D canvas?

Quote:

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Originally Posted by wysota

So you want a line or a cube? Or maybe you want to project a 3D line onto a 2D canvas?

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I want to draw a cube which may rotatae by mouse or by set angle.

Use QtOpenGL module instead of QPainter.

Quote:

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Originally Posted by anupam

I want to draw a cube which may rotatae by mouse or by set angle.

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So you want to project a 3D shape onto a 2D canvas. If you want to do that manually then google for appropriate math. What you want is called projection.