There are four features that facilitates drawing on a Map in a Farming Management Information System.
Point: Just with a click on the map a point is created. Line: Just by clicking on the point and double click when you are done you will be able to a series of line segments.
Circle: Just by clicking where you want the center to be and and dragging the circle outward to expand it and click again to finish. Polygon: Similar to line but the difference is it will create a closed shape at the end, where a line will not be filled in.