<< Click to Display Table of Contents >> Bezier cross section 

The shape of a Bezier crosssection is described by a Bezier curve.
One half of the shape of the crosssection is described using a 4th degree Bezier polynomial. •Points 0 and 4 are the end points and cannot be changed. •Point 1 can be moved along a straight line which corresponds to the cone angle of the crosssection (0° for a rectangle type, δ for a trapezoid type). •Point 3 can only be moved on a straight line specified by the cone angle λ. •Point 2 can be moved freely and therefore has the major influence on the shape of the crosssection.

Two basic shapes of the crosssection can be selected, rectangular or trapezoid.
With Inner point position, you can select whether positioning of the inner points 1 and 3 should be relative (0..1: 0 = point 0/4; 1 = point S) or absolute (distance from point S), where S is the intersection point of lines 01 and 43.
The numeric values of the positions can be changed by rightclicking on points 1 or 3.
The scaling center point is the left (right) inlet point, which is not located on the section center line. 