GeoLogic Software contains patented techniques used in landfill compactors to achieve greater compaction within cells and allow the operator to know where he is with regard to the liner of the cell. It is used in agriculture for laying drainage tiles, constructing drainage ditches and land leveling. It is used in construction equipment to allow either machine guidance where it tells the operator how much to raise or lower his blade or in direct machine control, referencing computer installed plans and using High Accuracy RTK GPS for position in 3 dimensions.