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GGU-STABILITY: Define centre-points (Ex. 2)

As the system input is complete, you must now describe the geometry of the slip circles. First, you have to define the centre-points. For this, the following menu items of the "Centre-points" menu are provided:

  • "Define in quadrilateral"
    You click on the four corners of a quadrilateral with the mouse. You can then select an array subdivision. The centre-points will be set in accordance with the size of the quadrilateral.

  • "In rectangle"
    You click on two diametrically opposed points of a rectangle and enter an array subdivision. The centre-points will be set in accordance with the size of the rectangle.

  • "Individually (graphically)"
    You define the coordinates of individual centre-points by clicking with the left mouse button.

  • "Individually (editor)"
    You enter the centre-point coordinates directly using the keyboard.

A current array can be supplemented and refined at any time. You can also swap between the described methods above. A total of 5000 slip circle centre-points can be entered.

The area above the slope which is clickable with the mouse is somewhat small. Select the "Zoom" menu item from the "Page size + margins" menu. Confirm the default zoom factor of 0.8 with "OK". Now select the "Individually (graphically)" menu item from the "Centre-points" menu and then click on some centre-points in front of the slope with the left mouse button. It is now up to you to try using one of the other methods for centre-point definition.

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