I am onsite measuring items manufactured 70 years ago to decimal inches, so to have a tape measure marked out in decimal inches , rather than have to look at it and think, ’ I reckon that would have been 1.1inch’ when its near 1 1/8 on the tape measure, is what I need, then its easy to go back home and draw it all up in CAD entering 1.1 not 1 3/32 into the command line. To measure an item built to decimal inches one needs decimal inches tape measure, to measure an item built to metric, best use a metric tape measure. For some reason imperial exists only in fractions, I guess carpenters and DIY are the market. Even so adding up decimal in the head, is easier than 3/32 and 5/16 and 5/8 and 15/32 and so on.
also easier adding up decimal on a calculator !
On site I dont have time to keep switching between tape measure and another gadget, especially not a laptop etc, every second counts and its fast fast fast measuring with clipboard.
Back at base, in Rhino, if I draw a box and use R1.1,3.2 for the second corner, it works, rather than enter R1-3/32,3-3/16
as mentioned though R32-17/32+64-5/16,0 and hit enter sees unknown command.
i.e if I have two dims making up the x distance for an Rx,y command line entry, how should I enter them ?
Be that for either drawing a dimension line or drawing a straight line then snapping a dimension to it.