Easy construction of 3D mining zones using the FFLoop routine

ffloop.pdf contains a demonstration of building the mine plans pictured above.

ffloop.zip contains the file mine plans pictured above.  Unzip ffloop.zip to create ffloop.pnt To display these construction lines in Map3D, use File > Open (Construction Lines) and select ffloop.pnt Begin building the floor plan, using CAD > Build > FFLoop. Enable trace snapping by selecting CAD > Snap > Trace Snap. Specify the maximum element width as 20. Select OK. Select a corner point on the upper construction line as illustrated above. Close the loop by selecting the this point again. Do the same on the middle and lower construction lines. Select the last point a third time to complete the loop building process. Now select Build from the entity properties dialogue box. The entire excavation outline will now be constructed.