OpenLayers.Control.EditingMode Control to force the position of the point to draw when using the editing tools. Subclasses may be written to handle specific calculatePoint method. For example this can be used to handle snapping or to force lines to be horizontal or vertical. * Constructor OpenLayers.Control.EditingMode() -- Creates a new control. No options available. * Methods calculatePoint({OpenLayers.Geometry.Point}, {OpenLayers.Geometry}) -- none -- Calculate the position of the point to snap to, modify the first argument parameters value setMap({OpenLayers.Map}) -- none -- Set the map property of the editingMode