Matthew Schexnyder's Page

Jacob Buchenauer replied to Matthew Schexnyder's discussion Area & Slope lists

"I have a question related to the ColorBySlope command you attached here. Is it possible to take the gradient you generate and use that to limit where, say, a curve (or set of curves) would be projected onto a surface? For example, if you…"

Mar 23

Jacob Buchenauer replied to Matthew Schexnyder's discussion Area & Slope lists

"it appears to be in degrees"

Feb 22

Matthew Schexnyder joined Matt Zambelli's group

Landscape Parametrics

Landscape Parametrics is a forum for the investigation, experimentation, and application of parametric modeling in the field of Landscape Architecture.See More

Feb 5, 2012

7 Comments

Matthew Schexnyder commented on Sasa Zivkovic's photo

sasa zivkovic iceland 10

"Skál"

Nov 28, 2011

Matthew Schexnyder replied to Matthew Schexnyder's discussion Cull smaller (area) of two coplanar surfaces

"Thanks Andrew, that works very well. It is still a bit mysterious to me since I have not worked much with sets at this level, but I see what the definition is doing in principle. I'll have to study it more! Thanks again for…"

Nov 26, 2011

Andrew Heumann replied to Matthew Schexnyder's discussion Cull smaller (area) of two coplanar surfaces

"You were on the right track. Here is my approach: Get the center point of each face Project that center point back to the base surface, and get its UV coordinates Round off the UV coordinates to avoid slight inaccuracies use "Create…"

Nov 26, 2011

Taylour replied to Matthew Schexnyder's discussion Cull smaller (area) of two coplanar surfaces

"I'm probably not advanced enough yet to be of much help, but maybe some combination of these: Math » Operators » Larger Than Sets » List » Dispatch -Taylour"

Nov 26, 2011

Matthew Schexnyder replied to Matthew Schexnyder's discussion Cull smaller (area) of two coplanar surfaces

"Hi All, I though I would put this question back in the queue. I have attached an updated definition in which I am trying to compare the overlapping surfaces with a shared XYZ point (similar to using the centroid for sorting duplicate…"

Nov 26, 2011

Matthew Schexnyder posted a discussion

Cull smaller (area) of two coplanar surfaces

Hi, I am trying to compare two coplanar surfaces based on area and cull the smaller of the surfaces. The surfaces are shared walls of adjacent extruded cubes. The cubes are extruded at varied heights. I want to keep the larger wall between each cube and delete the smaller overlapping wall from the data structure. If there are two surfaces of equal area, I want to cull one of them. (In others words, I only want one wall between each cube cell.) I want to do this because I plan to render…See More

Nov 25, 2011

4 Comments

David Wooden replied to Matthew Schexnyder's discussion Area & Slope lists

"The ColourBySlope def has been very helpful. Is the output from the F(x) component in degrees (slope) or does the Z normal need to be converted into degrees?"

Nov 8, 2011

Matthew Schexnyder commented on Jeff Niemasz's video

Diva for Grasshopper

"Thanks for the reply Jeff. I'll stay on the look out for the updates. Thanks for this great tool; I'm looking forward to working it into my projects."

Oct 16, 2011

Matthew Schexnyder commented on Jeff Niemasz's video

Diva for Grasshopper

"Does anyone know how I could download DIVA v1.9 or later as referenced on the wiki? I am only finding redirects to versions 1.1f or 1.2 beta. The problem I am having is that when replacing the grasshopper component for the latest…"

Oct 16, 2011

Matthew Schexnyder commented on Jeff Niemasz's group DIVA for Rhino

"Hi, I have just installed DIVA and I'm noticing that I have a different toolbar for DIVA in grasshopper than the one shown in Jeff's install tutorial video. My DIVA toolbar for grasshopper only has the "Analysis" and…"

Oct 16, 2011

Matthew Schexnyder joined Jeff Niemasz's group

DIVA for Rhino

DIVA-for-Rhino is a plugin which runs thermal, daylight, solar radiation, and glare simulations. Our goal is to bring validated environmental simulations directly to the conceptual design environments of Rhino and Grasshopper.See More

Oct 16, 2011

59 Comments

Matthew Schexnyder replied to Matthew Schexnyder's discussion Area & Slope lists

"Danny and David, Thanks for your replies. Both of these definitions are very helpful (and increased my understanding of angle and area functions). Cheers, Matthew"

Apr 5, 2011

David Rutten replied to Matthew Schexnyder's discussion Area & Slope lists

"Attached two files, one for assigning colours based on slope, the other for removing facets based on slope. I also changed your slope calculation to work directly on the z-component of the facet normal vector. I operate on the Absolute of the…"

Apr 4, 2011