Draft Dimension

Description
This tool asks the user for two points defining the segment to be dimensioned, then a third point to locate the dimension line.



Usage

 * Pick 3 points on an empty area of the 3d view, or on an existing object.
 * Pressing will snap your point to available snap locations.
 * Pressing will constrain the dimension horizontally or vertically.
 * Enter numbers to manually insert a coordinate.
 * Pressing will cancel the operation.