Local coordinate system
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In every node a node-coordinate system can be added.
The origin lies in the relevant node. The direction of the x-axis is determined by inserting an angle ( see the figure above). Local coordinate systems can be used to calculate node limitations ( support reactions and restrains ), node loads and/or node deformations in an arbitrary direction.
Angle
The angle of the local x-axis in degrees with the global x-axis. The direction opposite to the clockwise direction is positive.