Diagonals not measuring properly

Set the following values on the Page Settings: 1) Scale 1 unit = 10 ft. 2) Grid Size = .5 units 3) Diagonals = Pathfinder/3.5E Compatible When doing this it seems like it is basing the measurement on the scale unit without taking into account the grid unit size. Therefore the diagonals show up as follows: 1st - 5ft. (expected) 2nd - 10ft. (not expected) 3rd - 15ft. (not expected) 4th - 30ft. (definitely not expected) It of course incrementally gets worse and worse the farther you need to measure diagonally. Straight lines measure perfectly. This setting is common when needing to import maps with a 10ft. square but wanting to maintain a 5ft. squares for party members to move in. (yes, it does make the tokens kind of small, but I haven't found a better way to handle maps like this, short of recreating the entire map in another program). Thanks! Kevin

You could double the size of the map in Roll20. Right click, set dimensions, and just double the numbers there.

Kevin, I think you're misunderstanding how the scale per unit works. The math looks fine to me. [1st = 5ft, 2nd = 10ft] These two halves make one unit which should be 10 ft. [3rd = 15ft, 4th = 30ft] These two halves make a second diagonal unit which using Pathfinder/3.5 measuring results in double unit(20ft) for a total of 30ft. If you want your characters to be able to move more granularly than in whole units (which is important for a system that has a diagonal conceit like 3.5) then I'd suggest just turning off the grid and measure movement foot by foot. The grid is only really useful to help speed up measuring into easily determined chunks and has some innate flaws.

HoneyBadger, that is a really excellent suggestion and will work in most cases for sure! Thank you! However in many cases if you pull the maps from .pdf the resolution is pretty low to start, so it tends to make things quite blurry if you increase the size too much.

Steve, Thank you, but I guess I am not getting the results I would expect. The first diagonal should be 5, no argument, but with the the Pathfinder/3.5 measuring the second diagonal should be 15 total... but in this case the result is 10. The third should be 20 total with the 4th being 30 total, so it really doesn't seem right to me, or maybe I am misunderstanding your post. Kevin

I re-read your post, so I think understand what you are saying. The diagonal is calculated based on units, not based on the actual grid size (which is what I initially expected). Is there any way to calculate though based on the actual grid size rather than unit size?

The measurement is exactly what you're expecting with 1 unit = 5ft, grid size = 1 unit.

No. Unit is what is being measured, you can set the grid to be any number of or partial piece of a unit. The 3.5/Pathfinder double every other diagonal isn't going to play well with partial units. That's why I suggested ditching it for measuring everything in feet without a grid. If you really want a "half" unit you could go with Scale = 2.5ft Grid Size = 1. You could also double the size of your map as Honey Badger suggested or zoom out.

Ok, thanks, it answers the question.