Gemini TunnelShape

Ellipse in Manual Tunnel Description

In Norway, it is common to use radii, while in Sweden, contours are defined with ellipses as standard.

In the contour table, we can therefore choose between the codes Radius and Ellipse.

When we use 0 in the value column, this means for both codes that it is a straight line between the points in the table.

For an ellipse, the value in the column will mean the number of radii that the ellipse should be divided into. The ellipse will thus be approximated or represented with circular arcs in the program.

Example

In the example, we have entered the value 5 in the column. The program will then use 5 radii for both ellipses in the arch.

The radii are built in the cross section and when exporting to other formats.

Tip

If we want to have all the radii in the table, we can use the option Convert ellipses to radii on the context menu (right-click) of the layer.