Gilbert Tesselation with propagation in 2 dirrections X and Y. Crack propagation with an angle of 90°.
http://www.grasshopper3d.com/forum/topics/gilbert-tesselation-2
t of a line as well as it's direction and length. Then I will divide the line into segments. Then I will rotate each segment 90 degrees in some direction from it's center point."
Then I make a numbered list trying to be more specific.
"1.define a point at 0,0,0
2.make a line starting at that point in the x direction 80mm.
3.divide the line into 10 pieces.
4.find the center of each of the 10 lines.
5.rotate each line 90 degrees from the x direction clockwise from the start point."
Then I try and make a list using grasshopper components describing inputs and outputs.
1.line start point vector length. input 0,0,0 into start point, input x as direction. Input 80mm as length.
2.divide curve: input resulting line segment and input 10 as number of segment.
3.curve center point: input list of segments
4.rotate: input list of segments, input curve center points as center of rotation. Input 90 degrees into rotation amount.
Also sometimes for more complicated stuff I will make a list of rhino commands saying how I would do it In rhino. Then try and covert it to grasshopper.
Hope that helps.
"1.…
Added by Michael Pryor at 12:31pm on August 12, 2011
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ases where you have angled shades and the component is doing trigonometry to figure out how close the blinds could be to the glass without touching. I just re-wrote the code so that, now you cannot have the blinds closer to the glass than half of the blind slat depth, which seems to be the limit of what E+ will tolerate.
Also, E+ does not like it when you input blinds that are perfectly at 90 degrees so I changed the component to automatically write out shades at 89 degrees when you connect up 90.
Using the Shade geometry as context worked perfectly for me and I am not sure what was wrong in your situation.
See your working file attached.
-Chris…
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For some reason, the loft works at 3 angles of rotation of the upper polygon. The loft forms at 0 degrees, 90 degrees and 180 degrees.
Not sure if that helps solve the problem...
Added by Andrew Manson at 5:03pm on October 16, 2012
I don't understand exactly what you mean if you say that the end of edges left fixed and the middle part is twisted 90 degrees.
Can you explain it by sketching or whatever?