Tendon source geometry

When the shape (geometry) of a tendon is defined, it is possible to use what is termed Source geometry. The source geometry is in fact an independently prepared shape (geometry) of the tendon without any link to a particular structural entity that is to be reinforced. The advantage is clear. The user may prepare the shape of the tendon just once and later assign it to numerous 1D members, for example. Moreover, the source geometry is created as if intended for a straight 1D member. But, at the end it may be assigned even to a curved 1D member. The x-axis (longitudinal axis) of the source geometry simply follows the x-axis of the 1D member regardless of the possible winding character of the 1D member axis. This feature significantly simplifies the input of tendons into curved 1D members.