Grasshopper

algorithmic modeling for Rhino

Reverse a point list

I'm struggling for a long time figuring out how to remap the index of a tree structure, I know grasshopper doesn't thinks with array structure but in tree structure, I still hasn't figured out the difference between two. For example if I had a 4 times 4 array.

array[0-3][0-3]

I used to write php, In order to switch the index, what I would do is:

for ( $x = 0; $x < 4; $x++) {
for ( $y = 0; $y < 4; $y++) {
newarray[x][y]=array[y][x];
}
}
I'm wondering how would I do this in grasshopper. Either by VB or by components.

I'm working on a array of lines, I want to loft them in both directions, attached is the screenshot.


Thanks a lot

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Permalink Reply by Andrew Heumann on April 1, 2010 at 10:58pm
Try the Path Mapper - set your Source to be {0;0;A}(i) and set your Target to {0;0;i}(A). I think this will achieve what you're looking for.
Permalink Reply by Victor Leung on April 1, 2010 at 11:56pm
Thanks so much for your quick reply, I'll look into it. I've never see that button before though.
Permalink Reply by Victor Leung on April 2, 2010 at 10:42am
it is exactly what I wanted, thank you so much.
Permalink Reply by oliver von Malm on June 7, 2010 at 12:40am
Nice one! been looking for that for quite some time as well! transpose table, cool thing, thanks!

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