Odd Math

[Jim]

Can anyone explain the results of this snippet?

model = Sketchup.active_model
entities = model.entities
selection = model.selection
camera = model.active_view.camera

cdir = camera.direction
puts "camera dir; #{ cdir.inspect}"
sum = cdir.x.abs + cdir.y.abs + cdir.z.abs
puts "sum; #{sum.inspect}"
puts "sum == 1? #{sum == 1}"

Results:

camera dir; Vector3d(0, 1, 0)
sum; 1
sum == 1? false

[AdamB]

Yes. .to_s / .inspect print an approximation of the Float value. When it prints (0,1,0), thats just the answer to 4 significant figures. Your Float(1) comparison simply shows that difference.

[Jim]

Thanks Adam. I still don't understand why sum (which is a Float)shown as 1 instead of 1.0

Might the .inspect method be over-ridden?