roof behaviour

[Raymond West]

Hi,

I've never understood the requirement for 'roof', it may be a tad more
useful if the angle of slope could be adjusted.

Anyway, in playing around with it, I found the following -

###################################

from openscad import *
s=union(square(20),circle(10).right(10))
p =s.roof()
p. show()     # ridge is horizontal

b=union(square(20),circle(10).left(8))
c =b.roof()
c. show()  # ridge is crippled

s=union(square(20),square(20).rotate([0,0,45]).right(25))
p =s.roof()
p.show() #peaks chopped off

#########################

At first sight I would expect ridges going from peak to peak, being
horizontal. That obviously is not so, so  then I thought that the sides
would be at 45 deg. However, it seems to be some mix of the two. Is
there any succinct description of how it should be?

Best wishes,

Ray

[Guenther Sohler]

You can easily Change the Angle by sclaling z. Roof Default Angle should be 45 degree normal to the 2d Edge.

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