up structural systems in the parametric environment of Grasshopper. Participants will be guided through the basics of analysing and interpreting structural models, to optimisation processes and how to integrate Karamba3d into C# scripts.
This workshop is aimed towards beginner to intermediate users of Karamba however advanced users are also encouraged to apply. It is open to both professional and academic users.
Course Fee:
Professional EUR 750 (+VAT)
Student EUR 375 (+VAT)
Course Outline
Introduction & Presentation of project examples
Optimization of cross sections of line based and surface based elements
Geometric Optimization
Topological Optimization
Structural Performance Informed Form Finding
Understanding analysis algorithms embedded in Karamba and visualising results
Complex Workflow processes in Rhino3d, Grasshopper3d and Karamba3d
Places are limited to a maximum of 10 participants with limited educational places. A minimum of 4 places are required for the workshop to take place.
The workshop will be cancelled should this quota not be filled by October 15th.
The workshop will be taught in English. Basic Rhino and Grasshopper knowledge is recommended. No knowledge of Karamba is needed.
Participants should bring their own laptops with either Rhino5/Rhino6 and Grasshopper3d installed. A 90 day trial version of Rhino can be downloaded from Rhino3d.
Karamba ½ year licenses for non-commercial use will be provided to all participants.
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ive 'correct' normal.
Non-normalized cross products is effectively weighting face normals by area, and is fast and simple, so we put that one as the default.
In some cases normalizing the cross-products improves the result, but not always.
Another option is to weight by angles, though this is computationally slightly more expensive, so might not be ideal for real-time updates on large meshes.
As an example, here is a mesh with a 90° corner, and uneven meshing on the 2 sides.
The arrows show:
0- Area weighted (non-normalized cross products)
1- Angle weighted
2- Normalized cross-products
Here the angle-weighted normal is the one at 45°, which is intuitively the 'best' one in this case.
These 3 seem to be the most commonly used, but there are many other possible definitions of normals - such as inverse-area weighted, mean curvature, etc...
I think really what would be best would be to put a few of these into Plankton, and include an optional argument in GetNormal for selecting which one you need for a particular application.
Pull requests welcome if you feel inspired to add this!
http://meshlabstuff.blogspot.co.uk/2009/04/on-computation-of-vertex-normals.html
http://steve.hollasch.net/cgindex/geometry/surfnorm.html…
us allows Grasshopper authors to stream geometry to the web in real time. It works like a chatroom for parametric geometry, and allows for on-the-fly 3D model mashups in the web browser. Multiple [Grasshopper] authors can stream geometry into a shared 3D environment on the web – a Platypus Session – and multiple viewers can join that session on 3dplatyp.us to interact with the 3D model. Platypus can be used to present parametric 3D models to a remote audience, to quickly collaborate with other Grasshopper users, or both!
You can down load the Grasshopper plugin at food4rhino, and visit 3dplatyp.us to view your geometry on the web. This first round of Alpha testing will run for two weeks, until April 24 2014, after which the Grasshopper components will not solve.
We are very interested in hearing feedback from the community while the project is still in the prototyping stages of development. Please use the comments on this discussion to ask questions, suggest ideas, report bugs, etc. We are planning on rolling out another public alpha release or two this Spring, depending on how this first one goes, in advance of our Technology Symposium and Hackathon in New York.
Check out our getting started video below, and enjoy!
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e rod with circular section (no goals allow for controlling torsion for what I know). The rods are set with two options, with straight rest position or the (initial) bent one. The calibration integrated with the model is more about giving a scale between the forces rather than the will to accurately simulate them (at the moment). Anyway, I am trying to do it on a macro scale, instead of a micro, with elements which are rather thin.
The system at the moment is not stable. In fact, besides the rods' characteristics is quite fundamental to keep them planar when they intersect. I am lacking something but also probably missing some parameters. In the script, there are two goals to define this: impose 90° between vertical and horizontal, as well as between these and a normal to their intersection. For my understanding, angle goal works tri-dimensionally without a preferred plane and this (hopefully) should address it.
Just wondering if anyone can give me a hint on this. After this step, it would be great to understand if the system can get out of its plane (through a pull force out of its plane, simulated in the script through point loads in the joints). I am still not entirely sure about the possibility of doing this. By looking at how other auxetic patterns have been used to generate freeform surfaces, I am giving it a try.
Thank you
Claudio
PS: I noticed also this post and this, really interesting. I see the problematic over the stability and the necessity to separate the states with an energetic hill in the first, as well as some potential in using auxetics in the latter.…
opening a simple file with 30 curves being lofted took like 2 minutes to complete and Rhino crashed afterwards saying:"Windows is out of memory and Rhino will close after you click ok."evethough I still had 7GB of free physical memory and my page file is set also to 16 GB just to be shure...I then switched to Rhino 5.0 Version 5 SR14 64-bit (5.14.522.8390, 05/22/2017) which also had big problems to display the lofted surface. It was unresponsive after loading the file for a minute and a half and then it normally displayed the lofted surface. Every move of camera takes at least 10 seconds to update, but at least it runs. GH profiler says the loft took only 12 ms (90%).
So I'm suspected my graphics card, because the Windows are just three weeks from a clean install. I've also updated my Graphics Driver from the stock Windows one to Intel HD one, but nothing changed.Is there something I'm missing??? What can I try next?My specs:CPU: i5-3320M @ 2.60 GHzRAM: 16 GBGPU: Intel HD Graphics 4000, driver: 07.04. 2017, version 10.18.10.4653
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Added by Šimon Prokop at 10:39am on October 21, 2017
column to read the file??
Sure, actually input could be a list of strings, for example:
A1:A20
B15:B50
It will read the columns and put each into a list. Rows also works such as a12:f12
But it does not accept a range such as a12:b24
Hope this is helpful.…
Added by Xiaoming Yang at 2:48am on November 24, 2011
ve jewelry design course teaching Rhino, Grasshopper, Keyshot and 3D printing in collaboration with mything and ShapeDiver. Taught by Eva Blšáková - Zaha Hadid Studio Vienna Andrei PAdure - DesignMorphine / Digital Matters Apply Now and view details at: www.designmorphine.com/workshop/future/algorithmic-accessories-v3/ Follow us on Facebook: https://www.facebook.com/designmorphine and Instagram: https://www.instagram.com/designmorphine/…
e has a sharp break
2) The Curvature "flips"
The curvature graph component creates exactly what I need, but unfortunately it only visualizes the new curve (lets call this c1), without actually making it usable. If it were usable, I could just test for curve-curve intersections, and discontinuities in (c1). I have more or less replicated the behavior of the curvature graph component, except that my imitation is too smooth (lets call my imitation curve c2). I attached two images to demonstrate what I mean.
Is there a way to get exactly what the Curvature graph makes? How is it creating c1? Is it just a much larger sampling of points? Or does it somehow operate (calculus?) on the underlying formula of the curve (c0)?
Any guidance is hugely appreciated. …
Added by Matthew Breau at 11:37am on August 14, 2017
more about book keeping inside a single document. For example: first tab would be UI, second would be formatting, others would be different modules of my script. I have to push stuff around all the time and even with groups or alt-drag it takes a while.
In Excel a sheet is a very large 2d array, but you can add a third dimension by adding sheets and access them with =Sheet2!A1 (3 coordinates : Sheet2 , A , 1)
So sheet are just 2d slices in a 3d array for visualization.
Processing is not such a good example, it's just pages in your code that are executed one after another, but still it's good for clarity : one tab with "setup", one with "draw", one with functions, one with classes etc
Since you're an architect, think of my tabs as the storeys of a building. there are horizontal as well as vertical wires.
I figured you could add a "vertical wire" that could eventually act as a cluster in/outputs for export etc
Just an idea anyway…
t of the bumblebee components. This component does the conversion in vb with no reference to excel, so excel does not need to be running. The XL address has been updated as well so it no longer needs a link to excel.
Also, I caught an error in the address component where the domain input "Location" was reversing the column and row values, this has been fixed.
Conversion from integer to string column ID adapted from: http://stackoverflow.com/questions/181596/how-to-convert-a-column-number-eg-127-into-an-excel-column-eg-aa
Excels limits are listed at: http://office.microsoft.com/en-us/excel-help/excel-specifications-and-limits-HP010342495.aspx
Updates User Object collection can be downloaded at: Bumblebee Version 1.02…