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From: bemfarmer
Theta of 2PI was divided by 3, to produce one "heart shaped" clover, third of a leaf, a closed curve.
Rotated to top center.
moved away from the origin by a very small amount, to separate the future 3 leaf sections a little.
Circular array by 3.
Place small circle at origin.
Trim the 3 closed curves, and blend.
To make the stem, placed vertical lines at bottom blend of lower two leaf sections, and to the sides. The middle line is just to place the two side lines with a horizontal guide line.
Moved them up a tiny bit to clear the edge of the two lower leaf blend.
For the bottom of the stem, also made 3 lines at an angle, at the bottom of the future stem. The two outer lines are placed further apart than the top lines.
Blend the two outer upper lines with the two outer lower lines. Join to a curved trapezoid, and fillet lower end of stem.
Blend the trapezoid with the leaf edges, to yield one closed curve for entire shamrock with stem.
Do planar.
- Brian
https://imgbox.com/c3xCeI9H
Attachments:
shamrock3Heart.zip
From: bemfarmer
A node assemblage, shamrocknod.nod, was created to test some angle ranges for u.
Note that if the SwRotary node is not in its default (first pole) position when the node program is saved, the SwRotary will not work. (a minor SwRotary node bug).
Theta of PI/3 yields a half curve, from +y to the origin.
Theta of 2*PI/3 yields a full closed curve. It is nicely rounded near the origin. The start point is not quite at the origin, and the midpoint is also slightly away from +Y.
This could be manually corrected...
Higher switch positions have the cusp problem, near the origin.
- Brian
Attachments:
Shamrock3nod.zip
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