I made dodecahedron, but I can't count volume of it, bacuase
Autocad says:) that it's not region or solid, so how can i change it?
m
- posted
18 years ago
dodacahedron-encore
Loading thread data ...
- posted
18 years ago
Ok .......
Then try this one ....... draw a pentagon/polyline then extrude this a distance of 1.113516 multyplied by the length of the edge of the pentagon and taper at an angle of 31.71747441° .
This will give you one twelfth of the total volume. Use copy and align to position a copy of this pentagon based pyramid then array etc ....
This is not absolutely perfect but the error is very small.
Regards ............. David
Then try this one ....... draw a pentagon/polyline then extrude this a distance of 1.113516 multyplied by the length of the edge of the pentagon and taper at an angle of 31.71747441° .
This will give you one twelfth of the total volume. Use copy and align to position a copy of this pentagon based pyramid then array etc ....
This is not absolutely perfect but the error is very small.
Regards ............. David
- posted
18 years ago
You guys don't realize that regular geometry follows an ALGORITHM?!? It's as
easy as PI, HELLO!
Or for a more accurate answer, you may wish to translate the FORMULA on Eric Rowland's site to lisp, then solve dodecahedrons of any size :-)
What!?!
I am strating to see this as the norm for a newsroup that caters to an overpriced 2D CAD program.
Really sad for an "engineer's" newsgroup, guys.
Ben
Or for a more accurate answer, you may wish to translate the FORMULA on Eric Rowland's site to lisp, then solve dodecahedrons of any size :-)
formatting link
What!?!
I am strating to see this as the norm for a newsroup that caters to an overpriced 2D CAD program.
Really sad for an "engineer's" newsgroup, guys.
Ben
- posted
18 years ago
I'm not sure if this will work but have you tried the "Region"
command, after creating the dodecahedron?
after turning it into a region, then try the volume.
It's worth a try.
Dan s.
after turning it into a region, then try the volume.
It's worth a try.
Dan s.