One core thing in our project is to be able to graphicly represent knots. Users can load a predefined knot to see the looking of the knot and how the knot is created step by step. Users are also allowed to draw curves and make them to be some knots. I tried today checking to see if XNA is a good framework for our project. After three hours work on creating 3D world space, drawing some points and lines, making camera view rotated using mouse movement events, I think XNA is a powerful tool. We could use it for our project.
I also looked into the possibility of creating curves, using some well defined algorithm: Bezir curve or B-spine curve.
Drawing lines and 3D rotation have been tested. Now it is time to fine a good curve algorithm for our project.
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