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geometry_circle_segment index x_c y_c radius side_x side_y tolerance

This data item defines a circle segment in space. Other data items can check if nodes are located on this geometry. The coordinate of the center is x_c y_c. If side_x is set to a positive value, say +1., then only x-values larger then x_c are considered to be part of the geometry. If side_x is set to a negative value, say -1., then only x-values smaller then x_c are considered to be part of the geometry. If side_x is set to 0 , then all x-values are considered to be part of the geometry. Likewise remarks hold for y-values. All node within a distance tolerance of the radius are considered to be part of the circle segment.



tochnog 2001-09-02