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.
 * Pressing before the first point allows you to choose an edge to measure. In that case, the dimension will be bound to that edge and will be updated if that edge changes.
 * An option on the draft command bar allows you to draw several dimensions on one same line.