Here's how the ruler thing helps. I will give an example from my own experience. Bear with me as I use the English Unit system to illustrate my example.
Let's say I create a floorplan of a house in full-scale in Modelspace. It's a 3,500sf house, and the Viewport of it fits nicely on a 36"x24" Paperspace sheet at the standard Â¼"=1' scale. That is the scale I set my Viewport to, and I print to PDF from Paperspace at full-scale.
In addition to my printing-company for professional prints, I send the PDF to the homeowners. They don't want to pay for the larger format printing, so they go to a neighborhood printing company and instruct them to print the PDF shrinking it to whatever fills up an 11"x17" sheet fully, without leaving anything off. It ends up being something a little more than 1/8"=1'... but not exactly that.
If I had inserted a Ruler in Paperspace-- also via a Viewport, as the ruler is in Modelspace-- and that Viewport's scale is fixed at the same scale-value as the floorplan's Viewport, the homeowners could easily either use a compass (dividers) to ascertain dimensions, another ruler (cumbersome), or just cut out the ruler that I had printed on the same sheet as the floorplan at the same scale as the floorplan.
Remember: Whatever unintentional, inadvertent, scaling happened to the Print Job happened to both the floorplan Viewport and the Ruler Viewport.
Same would hold true if this accidental scaling happened due to TurboCADer error, or printing-apparatus error (or whatever the cause).
I hope you don't mind, but I took the liberty of using your Garden drawing to illustrate what I am saying and the use thereof. See Modelspace as well as Paperspaces.
I also took the liberty to make some changes to your file; explore around, if you wish. The main change I made was changing your "Grid" (not to be confused with TurboCAD's Grid) from 6' increments to 5' increments. It seemed more intuitive for your gardeners, and fit nicely on a 110'-square-overall.
« Last Edit: March 25, 2014, 06:31:03 PM by Alvin Gregorio »
Intermittent TurboCAD user since yr. 2000 (ver6.5). No formal CAD Training.
---TurboCAD: V21PP; V20.2PP; V19DL; V11.2Pro; Windows-7-Pro/64-bit; Intel-Core-i3 CPU; 2.27ghz; 4GB RAM; Intel HD Graphics (CPU based)