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# Points parallel to Bezier Curve

Posted on 2014-02-28

I am developing an application that uses OpenGL and I need to create a series of parallel QUAD_STRIPS. You can think of it as a curved road with multiple lanes and I need to draw each lane separately. These lanes need to follow a set Bezier curve (with 2 control points) that is located along the center stripe of the road.

I can calculate the points along this cubic Bezier curve, but I am looking for a way to calculate a like number of points along both edges of each lane that parallels the center stripe that have a consistent offset or lane width if you will. If it matters, the initial curve can have any orientation in the Cartesian plane.