the line tool to place horizontal construction
After design settings and contour map parameters are
set, we are ready to place construction line for the roadway geometry design.
Click on the icon from the toolbar and move the mouse to a desired starting point
(for example, point A on the map). Click on the left mouse and drag it to a
desired end location. A line (linear roadway) will be drawn when dragging the
mouse on the map. A horizontal construction line will be plotted when releasing
the left mouse button. For this tutorial, please construct three lines from
point A to point B on the map as shown in Figure 3.
Note: Use right mouse clicking on
a segment (line or curve) to delete.
Figure 3 Construct linear horizontal