Coordinate System

The geometry of the clip should be generated in a local "clip co-ordinate system":

Figure 9:1. Parameters for controlling clips.

This local clip coordinate system has the following characteristics:

The origin coincides with the foot point of the profile section, that means, the intersection between the profile trace and the penetrated plate.

The v-axis system is always along the web of the profile.

The u-axis is perpendicular to the v-axis and always points in the direction of the flange. (In case of a flat bar or a T-bar section it would be more correct to say that it points towards the non-mould side of the profile section.)