Giulia Arcadi's Page

"Is this related to Daniel Piker's Rhheotomic Surfaces http://www.grasshopper3d.com/video/rheotomic-surface-flowline-relationship  "

"Italian is similar to spanish so i guess i can sometimes understand italian people trying to speak english better than a native english speaker."

"No,come on!!! ;)"

"I did ask: I guess it was lost in translation. I'll just go back and sit in my corner then :)"

"yes, get this it's a good result for me."

"Depends on how accurate you want it to be. You could divide the surface that's being used to generate contours into a grid of points, connect those points to the drainage script and then substitute the contour lines with the script output. That…"

"yes...  so is not a simple thing to achieve ...thanks anyway for the information!"

"What i think she is trying to achieve is to actually draw perpendicular lines to the ones she already has. There is no simple way to do this, one aproximation could be to use the drainage python script that can be found somewhere else in this…"

"Unfortunately the only way to achieve this is to fit a plane trough your curve to represent it and as its not planar it will be a very gross approximation. Not sure if this has worked but there are three sets of curves "

"look..in this file there is the family of curves that I want to find the orthogonal ... you think is possible?"

"Here we go: You will need to distinguish between the curves in the first direction (U) from those in in the second direction (V). The identifying orthogonality is easy as the DOT product of two vectors would be 0 if they are perpendicular.…"

"Using the Dot product seems to be a good solution. Vectors are orthogonal if the dot product =0"

"thinking...."

"b)"

"Do you want to know if the curves are: a) all orthogonal b) which are orthogonal to each other or c) what the plane would be that represents the orthogonal axes?"