alidated the entire RhinoCivil Engineering solution and migrate to a purely Rhinoceros solution.
85 components for Grasshopper among other analysis of a field study of linear project or study platform. Dedicated to the construction and engineering firms using topographic data.
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th one element which is a list of 10 numbers?
I can flatten it and get (I think) a list of 10 elements (even though when I hover over the output of "Flatten" it says "Tree(T) as tree"). I'm surprised I can flatten at all what would appear to common sense to be a simple list of 10 numbers.
I'm hoping that if I can get this answered it will become obvious why we have trees of lists rather than just lists of lists as you would in most computer languages. That's my real goal - to understand the purpose of adding what seems like an unnecessary complication - trees - to the concept of lists in GH. It seems to me as though a "tree" is just a list of other "trees" until you get to the leaves where you can have "lists" which are identical to trees but can have something other than a tree in them. Whether you can have lists of trees or trees with no lists I'm unclear on. Do the leaves of trees have to be lists? Do lists have to be contained in trees? It would appear from the series example where a tree is produced for no obvious reason to contain the list that this is the case but given that you can flatten it, I guess not - or is the "List" I see in the param viewer just another type of "tree"?
I've found many tutorials that talk about how to manipulate trees and lists and I've managed to get along fairly well with them so far, but nothing seems to explain the reasoning behind the existence of trees and the philosophy for how and when they should be used and when lists should/could be used and precisely what the difference is between them.
Sorry to be long winded but I'm so confused!
Darrell Plank
P.S. I've seen David Rutten's diagram with the colored leaves in Grasshopper Primer 2 and that seems helpful. It would appear that trees can only have lists at their leaves and lists can't have trees although I'm not sure that it comes out and says that directly but at least there are no examples of this shown in his tree diagram. I thought I had it down pretty much so decided to test myself. Apparently I'm as confused as ever:
It certainly appears to me that this tree has two levels - a first level with one limb and a second with 10 limbs - and that I should be able to index it with {0;0} and retrieve a tree with one item in it - the list {0}. The panel data seems to confirm this with indices of {0;0;0}, etc. so I put this path in with quite a bit of confidence that it would work and...bust. The error reads "Path {0;0} does not exist within this tree". Huh? Again, I'm just so confused.…
Added by Darrell Plank at 12:17am on January 20, 2015
starting as soon as possible.
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Our ideal candidate:
- is passionate about construction, engineering and (computational) design
- is proficient in Rhino / Grasshopper / (GH-)Python
- knows his ways around the Adobe Suite and MS Office
- has a current work permit for Germany
- is a German speaker (other native speakers also welcome, with excellent English skills)
- has an architectural background (Student / BA / MA /...), ideally with work experience
- is interested / has experience in digital manufacturing and prototyping
- will be able to join us shortly
We're looking forward to your applications / inquiries / CVs to: mpelzer@fat-lab.de
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(Current projects, unfortunately, are non-disclosed)
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up d'entre vous connaissent pour l'excellent support qu'il a prodigué chez l'éditeur McNeel !
Dates : lundi 9 et mardi 10 décembre 2013
Niveau : Débutant
Pré-requis : non, mais connaissances en langage de programmation ou Grasshopper seront un plus, connaissances en anglais car le cours sera dispensé en langue anglaise.
…
m in the first place. What would I use to create these sets in a simple object which I can plug everything into. i.e. a mathematical script which uses one number (the number of items in the column). to join every neighbouring pair together. in this case, 21 rows, in 12 columns. Collecting the sets - 1 to 21 with 22 to 43 then 44 to 65 with 66 to 87 etc etc etc.
The selecting curves for the columns are drawn in Rhino, and are all equal in number (in height) as shown in Top view.
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irectNormalRadiation output. This is the solar energy that is directly normal to the sun angle. The 70% statistic does not seem to be right for Boston. I'm getting something closer to 94% between a dynamic panel tracking the sun and a flat panel oriented horizontally on the ground (globalHorizontalRadiation):
Then again, Boston is really cloudy and I could see the 70% statistic holding in some places like a desert climate
Note that, if the movable panel is not always at the ideal sun angle, you can still model it with Ladybug. You are just going to have to pass a grafted list of 8760 hours into the selectedSkyMtx component and run 8760 radiation simulations using the output data tree.
-Chris…
he new ones start like this:
Imports RhinoImports Rhino.GeometryImports Rhino.Collections
So when I try to run my old code:
Dim vertexList As New List(Of On3dPoint) Dim ribList As New list(Of OnLine) Dim spineList As New list(Of OnLine)
I get these errors:
Error: Type 'On3dPoint' is not defined. (line 93)Error: Type 'OnLine' is not defined. (line 94)Error: Type 'OnLine' is not defined. (line 95)
So this is probably a really easy question. Can I still use the OpenNURBS library or do I need to rewrite using Rhino.Geometry? If so, where is best reference for that?…
Added by Chris Wilkins at 3:32pm on October 15, 2012
ius, like the image below. I have a string with all of the 8 radii in a group of data. I was using the Divide Surface command, but there are two problems. First, the resulting points have a tree structure shown in the screenshot below, with {8; 2; 3}. How do I assign radius so that the six holes on the same panel has the same radius? The second problem is, the divide surface command generates points along the edges, too, where I don’t need any holes. How can I get rid of them?
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try now to integrate Geco in an interdisciplinary architectural engineering studio: hoping we can show you some nice applications of your tool, I'll keep you update and sending now details by e-mail. Here the file (very welcome to be shared). It most probably contais trivial errors by me, thanks for helping and giving some tip! Gr. Michela
FILE:
Ok, right, I see the outputs update correctly. Origin of problems must be in some different mistake I do:
- Incident radiation: I am not sure I understand what is going on: why I get so many 'not a number' ? (The Galapagos report is full of NaNs).
Bio-Diversity: 0.887 Genome[0], Fitness=NaN, Genes [89% · 44%] { Record: Too many fitness values supplied } ...
Genome[7], Fitness=NaN, Genes [74%] { Record: No fitness value was supplied } ....
Genome[9], Fitness=NaN, Genes [37% · 11%] { Record: Genome was mutated to avoid collision Record: Too many fitness values supplied }
- Daylight calculations: the geometry accumulates withouth deleting the previous models. As a consequance, results almost do not change after few varations (so, outputs get updated but do not vary). In current daylight definition: the first object being imported is the one where the grid has to fit; its setting makes it cancelling all the other objects during import. All the others, do not delete anything when imported. When running loops (manual or GA) that vary parameters, the entire geometry do not get cancelled - so I guess the loop does not pass back by the cancelling step, but imports only the geometry which has been varied by the parameters using the setting of that import component only? I will then try again by changing the order of the operations, but if you have specfic tips, let me know.
THANKS!
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