# Guide line

#1

Hello,

A question for the guides lines, when I draw a guide line of 15.5mm
and that I divide this figure by 2 it does not work, if it is an integer without a comma the guide line is positioned at half. >> (example 15.5 / 2) nothing happens and (15/2 the quide line is placed at half)
What is going on ?
can we improve this little problem?
thank you
Dominique

#2

The value box does not actually do arithmetic, but it can parse and reduce fractions. A decimal value followed by / and another number isn’t s well-formed fraction.

#3

Do it in two steps.15.5 enter then /2 enter.

Edit: Sorry need to correct that as it only works as an array with the move tool. So starting with a guide selected ctrl click with the move tool, move in the direction you want, type 15.5 and hit enter followed by /2 enter.

#4

Hello
I explain myself better, when I use guide line and I enter the box a number (example 200/2 it works well and when I enter 200.5 / 2 it does not work the quide line returns to zero)
I tried in two steps it does not work.
with the move tool I know how it works!
So can not we improve this little flaw by the sketchup service?
So I found a little trick j 'between the number * 10 so it’s integer and I divide it by 20)
Example: I need half of 15.5, I enter the box 155/20 and I get half of what I want.
Does anyone else have a quicker find?