Page 74 - 3DF Zephyr

By clicking on Tools > Sections and Contour Lines you can select the drawing element you want to create choosing among:  single section: this tool generates only one plane that you can move, rotate and resize; the position of the plane can also be modified using the control points, if they have been previously placed on the 3D model;  Track Sections: this tool generates several planes (user can fix the amount of those) on each positions of the control points so it is worthwhile when it is necessary to draw sections on an irregular path (for example, a river bed);  Contour Lines: allows to generate one or more contour lines on the 3D model and user can choose the reference axis for contour lines direction; Each one of the tools above leads to a window after the planes have been placed (see image below). In this window you can draw sections and contour lines previously identified by the planes both automatically or manually. In the upper bar of the window there are editing and drawing icons as follows (from left to right): - Create: manual method that allows you to draw a polyline; - Remove: removes the vertex of a polyline; - Move: moves the vertex of a polyline; - Split: adds vertex to a polyline; - Clear: deletes all polylines; - Close Polylines: closes a polyline; - Smooth Polylines: allows you to smooth all the polylines drawn; - Autocompute Current: generates a polyline only on the section shown in the window;