MODO: Introduction to the Contour Tool
The Contour tool found in the topology layout, generates curves from user-defined slices across an existing polygon surface. The resulting curves can be used with the Bridge tool for retopologizing a surface.
Although this is a powerful tool for retopology, the curves that are generated with the contour tool can also be very useful for other operations in MODO as well. This video explores a few uses for this powerful tool.