Showing Visitor Messages 1 to 3 of 3
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Joe,
Can you tell me why there is a differece between a ellipse layout and an Oval laout when the major and minor axis' start the same. I cut out some ellipses for window trim and the dimensions lost an 1/8" near the tight curve. Thank you ilex
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Hi Joe,
I was wondering what happen to the web page
http://ca.geocities.com/web_sketches/
I was finding it very enjoyable going through the math.
Michael (GDeckel)
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06-16-2009 02:59 AM
Topaz
Joe,
Hope you don't mind me sending you a message; I just wanted to say how much fun I have had out of studying your contributions around roofing trigo/geometry.
Also to send you this link:
http://www.isobevel.com/MiterDeriv.pdf
This is a trigonometrical derivation of the miter and blade angles for cutting crown moldings.
I wonder if we can step from there to your hip rafter backing angles? Or vice versa.
I am tending to use the pyramid as the neutral paradigm.
Your dihedral derivation/calculation was my entry point to this fascinating world.
So we are talking about the dihedral from two, unequal backing angles.
Many greetings,
Robert (Topaz)
