Hi all,

I'm been involved with an app that has the ability to create documents in 
various dimensions, including a way where you specify the width and height in 
inches + the PPI. So, for example, the user can specify a document of size 5in 
x 5in with 300 PPI. From this definition, I'll have a document of size 1500 
points by 1500 points although I'll have to redefine how many points equal one 
inch for the ruler view.

As NSRulerView already has the definition of 1 inch = 72 points, am I right 
that I'll have to create a new unit with a random name (could use a UUID) and 
"in" abbreviation that's defined from the PPI selected by the user? So, in the 
example case I'll send a msg similar to [NSRulerView 
registerUnitWithName:@"random unused unit name" 
abbreviation:NSLocalizedString(@"in", @"Inches abbreviation string") 
unitToPointsConversionFactor:300.0 stepUpCycle:upArray 
stepDownCycle:downArray]. 

Thanks,
M_______________________________________________

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