step-sizes. It starts out with large jumps, then as it cools the jumps get smaller and smaller as does the likelihood of a retrograde jump being accepted as a valid new state.
Most fitness landscapes have more than one dimension and therefore a 'jump' could include any number between 1 and N, where N is the dimensionality of the landscape. The Drift Rate setting —which may well be poorly named— controls the odds that a jump includes an additional dimension. All jumps must be at least one-dimensional, but 25 percent of them (on average) will include another dimension. 25% of those will include a third dimension and 25 percent of those a fourth and so on and so forth until the dimensionality of the landscape has been reached. Here's a list for 1000 jumps:
Drift Rate: 25%
1D jumps: 750
2D jumps: 187
3D jumps: 47
4D jumps: 12
5D jumps: 3
6D jumps: 1
A good question to ask would be; "Why would you want a jump to include more than one dimension?" and the answer is that the more genes are related, the higher the changes that a multi-dimensional jump will yield an improvement. It's not difficult to imagine that you cannot improve your current state by only modifying a single gene. Sometimes you need to change two in unison in order to reach a better solution. If your genes are highly related (which is bad practice to begin with) then you may need to adjust the Drift Rate to a higher value.
--
David Rutten
david@mcneel.com
Poprad, Slovakia…
Added by David Rutten at 11:09am on April 17, 2012
make sure I add this information to groundTerrain_ inputs in the next few days.
So if you are using "Gismo Terrain Generator" component (former "Ladybug Terrain Generator 2" component), only the following types are allowed for groundTerrain_ input: type_ = 2 (surface with rectangular edges)
type_ = 3 (surface with circular edges)If you are using "Ladybug Terrain Generator" component, then only the:
type_ = 1 (surface with rectangular edges)
is allowed.
As for terrain not being colored when it is created as a surface, you can analyse it additionally with "Terrain Analysis" component for Elevation analysis type. It can even be colored for rendering afterwards by using the "OSM Render Mesh" component. Check the attached file below.Have in mind that in urban areas "Ladybug Terrain Generator" component produces much more precise terrain than "Gismo Terrain Generator" component. On the other hand, the latter component can generate much larger terrain areas (up to 10 000 sq km2, at least in theory).
The reason why component might still work even though a terrain mesh has been added to the groundTerrain_ input is probably because once groundTerrain_ input fails to convert a mesh to a brep, this results in it being equal to None. Component then considers as if groundTerrain_ input is empty and runs as if nothing has been added to it (the buildings are laid down on a flat plane with 0,0,0 as the plane origin).
Thank you once again for all the testing you are doing!!! It really makes Gismo a better plugin!!…
Added by djordje to Gismo at 12:45pm on February 8, 2017
ng the "kaleidocycle" as a facade component, and i need to be able to move it through its entire "rotation" in 3d space to understand where and how it is moving.
http://www.youtube.com/watch?v=4owFczeqqMQ
this is what it is doing, in general. there are 2 sets of 3 hinges, rotated 180 degrees, making up a hexagonal form.
here is a rhino model of the form. i used the trigonometric properties of the isoceles triangle to make this model very accurate (63.333, 53.333, 63.333 angles), and now i need to describe the movement.
It is TOUGH. i think i have it and it just throws me for a loop (no pun intended).
I have a ghx model set up to where it can go through part of the cycle, but the inbetween states are incorrect, and therefore it's not valid, but it shows how something like this could work. The trick is it rotates on multiple axes at different times, and its just very very tricky to figure out what it is rotating around and when.
If anyone has any ideas, or insight, please please let me know. I am working on this in my masters' studies, and I'm pretty screwed if i can't figure this out in grasshopper!
Also, please find attached a research article concerning this form. I haven't been able to apply the geometric findings of theirs, yet. But it shows it can be described mathematically.
THANK YOU!!!!
benjamin
…
ts connectors and slots that allow CNC machining the facets and connectors for assembly.
https://www.youtube.com/watch?v=34OvgflJEmI
We developed this construction methodology earlier this year while working on a large scale parametric structure for Midburn, the Israeli Burning Man. While doing so I used grasshopper to generate the facets for the geometry, while a friend on the team (Matan Zohar) wrote a javascript app that translated the mesh into connectors and slots for CNC manufacturing. You can see more about the project here:
http://www.shlomimir.com/triped/
I wrote this component as an exercise in learning rhinoscript and python, with the purpose of bringing the functionality into the grasshopper workflow. It's now to the point where it is working for triangle and square welded meshes while outputting the connectors and slots as an unorganized list.
Questions and To Do List
1. I'm new to object oriented coding and functions, and basically just wrote the whole thing as a series of conditional loops with two dimensional arrays holding the data. Planning on restructuring this better, would love any tips.
2. Right now outputting the connectors and slots on the input mesh itself in 3D, planning on setting this up layed out on one plane to organize for cutting. I was wondering if there are any existing tools for this or if I need to do this manually.
3. Labeling connectors and slots. Is there anyway to output text from python that can be later baked into the rhino for labeling?…
faces2012la.eventbrite.com/
The Responsive Surfaces Workshop _ LA 2012 will explore the use of Grasshopper, Firefly and Arduino as creative and technical tools in the design, simulation and prototyping of intelligent building skins. Grasshopper, a free plug-in for McNeel’s Rhino modeler, allows designers to create adjustable parametric forms through graphic icons rather than programming. Firefly is a new set of comprehensive software tools dedicated to bridging the gap between Grasshopper, theArduino micro-controller, the internet and beyond. It allows near real-time data flow between the 3D digital and physical worlds, and will read/write data to/from internet feeds, remote sensors, connect with machine vision protocols, and more.
Instructor: Jason Kelly Johnson, Firefly co-developer, Future Cities Lab and the CCA San Francisco Lecturer: Miles Kemp, President of Variate Labs and co-author of “Interactive Architecture”
Additional Information: Workshop Location: 8451 Beverly Boulevard, Los Angeles, CA 90048 (GOOGLE MAP) Required Materials: Each participant should bring their own Sparkfun Inventors Kit or equivalent. Software: Please have the following software installed on your personal laptop computer - Rhino (SR9) + the latest versions of Grasshopper, Firefly and Arduino.
…
) Course Fee: Professional EUR 825,- (+VAT), Student EUR 415,- (+VAT)
Led by plug-in developer and structural engineer Clemens Preisinger, along with Zeynep Aksoz and Matthew Tam from the expert Karamba3D team, this three-day workshop will focus on methods of setting up structural systems in the parametric environment of Grasshopper. The participants will be guided through the basics of analyzing and interpreting structural models, to optimization processes, and how to integrate Karamba3D into C# scripts.
This workshop is aimed towards beginner to intermediate users of Karamba3D. However, advanced users are also encouraged to apply. It is open to both professional and academic users. For beginner users of Rhino and Grasshopper, there will be an optional introductory course one day before the Karamba3D course.
Karamba3D 1is a parametric structural engineering tool which provides accurate analysis of spatial trusses, frames, and shells. Karamba3D is fully embedded in the parametric design environment of Grasshopper, a plug-in for the 3D modeling tool Rhinoceros. This makes it easy to combine parameterized geometric models, finite element calculations, and optimization algorithms like Galapagos.
Course Outline
Introduction and 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 Karamba3D and visualizing results
Complex workflow processes in Rhino, Grasshopper, and Karamba3D
Places are limited to a maximum of 10 participants with limited educational places. A minimum of 4 participants is required for the workshop to take place. The workshop will be canceled if this quota is not filled by October 28. The workshop will be taught in English.
Course Requirements
Basic Rhino and Grasshopper knowledge is recommended. An introductory course is offered.
No knowledge of Karamba3D is needed. Participants should bring their own laptops with Grasshopper and either Rhino 5 or Rhino 6 installed. You can download a 90-day trial version of Rhino. Karamba3D ½ year licenses for non-commercial use will be provided to all participants.
Please register here……
Added by Matthew Tam at 6:38am on September 13, 2019
ively and creatively solve today’s product development challenges.
Our Rhino3D Foundations for Industrial Design class provides an in-depth look at 2D and 3D tools and methods with Rhino3D, a NURBs surface modeling software. In this class, we will systematically work through Rhino3D’s core features, using them to model the various components of a consumer product. Over the course of 3 days, we’ll cover some foundational topics, including Rhino interface and navigation, Rhino3D object types and properties, creating and editing 2D and 3D geometry, procedural modeling, automation, transforming geometry, Rhino modeling best practices, freeform vs. precision modeling, and exporting geometry.
You’ll take away the following:
Navigate the Rhino modeling environment
Create, edit, and modify curves, surfaces, and solids
Precision model using coordinate input and object snaps
Use transformation and universal deformation tools
Apply best practices for layer management and model annotation
Download the course one-pager. Need more information? Connect with us.
This class is ideal for:
Industrial designers who are new to Rhino3D and want to learn its concepts and technical features in an instructor-led environment.
For groups of 10 or more, contact Mode Lab at hello@modelab.is
Interested in additional training options?
https://www.modelab.is/upcoming-computational-design-events…
hacia donde crecerán las venas, y tenemos otro conjunto de puntos 'N' que son los que forman el patrón de venas.
1. Por cada 's' perteneciente a S, buscamos el 'n' perteneciente a N más cercano. Ese 'n' va a "moverse".
2. Por cada 'n' que se mueve, hacemos un vector dirigido a todos los 's' hacia los que se mueve.
3. Calculamos el vector medio de todos los vectores del paso 2, movemos 'n' con ese vector y lo añadimos a V.
4. Si algún 's' está muy cerca de algún 'n', ese 's' se elimina.
5. Se repite el proceso.
Esto es para formar venaciones abiertas sin autocrecimiento (como la siguiente imagen, hecho con Visual Basic).
Para las cerradas (las reticuladas que forman algo como células, como en la imagen tuya), el paso 1 y 4 son distintos y no sabría decirte cómo hacerlo. En ese pdf explica un método usando delaunay pero es muy lento, además gh no tiene ese algoritmo en 3d (entonces solo se podría hacer este patrón en 2d), por lo que estoy buscando otras vías, solo he logrado llegar a esto:
Es más complicado de lo que parece.
No obstante, si te conformas con menos, hay muchas formas de crear raíces y patrones similares, con SortestWalk, Anemone, etc... Hay ejemplos en este foro.
Si realmente quieres conseguir ese patrón, deberías aprender a programar porque para añadir distintos radios a las venas es necesario que las venas tengan topología y eso se complica demasiado desde gh. Nervous System para su "Hyphae" usó C++ con la librería CGAL, que es una muy poderosa librería de algoritmos de 3d.
…
rent actors to work together in real time on an architectural project.
DixieVR was born from the idea that virtual reality could become a fantastic tool for architecture and architects, not only for virtual tours but for the conception at its very core. Inspired by the efficiency of sandbox games, DixieVR will allow you to build a fully parametric 3D model from scratch in a very intuitive way and to simulate various factors like natural and artificial light, gravity, and more. DixieVR is also multi-user oriented : several people, architects or not, are able to work together in real time on the same 3D model and in the same shared immersive environment !
The project started in the Digital Knowledge department of Paris-Malaquais Architecture School.
The DixieVR Softwares can be found here : dixievr.github.io
// Interoperability
DixieVR deals with .dix files. For more information about this file format, please refer to the Interoperability documentation of DixieVR.
You can use this DixieIO plugin for Grasshopper/Rhinoceros for exchanging data between DixieVR (PC) & DixieViewer (Android).
You can import or export objects at any time inside a DixieVR scene. The Software also come with a library of premade objects that you might find useful. Adding your own premade objects to this library might be a good habit.
If you are hosting a scene, you also have the choice to open a .dix file directly from the main menu, this will load the last scene in which the geometry has been saved.
// Plugin
The DixieVR Plugin can be found in the Extra tab, come with 3 components and a example definition:
Dixie2Gh : Import DixieVR geometry to Grasshopper/Rhinoceros reading a .dix file (up to 1000 beams and/or 750 faces).
G2D_Polylines : Export Grasshopper/Rhinoceros Polylines to DixieVR writing a .dix file (up to 1000 line segments).
G2D_Mesh : Export Grasshopper/Rhinoceros Mesh to DixieVR writing a .dix file (up to 750 triangulated faces).
To install:
In Grasshopper, choose File > Special Folders > Components folder. Place the DixieIO_01.gha file there.
Right-click the file > Properties > make sure there is no "blocked" text.
Restart Rhinoceros or Unload Grasshopper.
// Contact - DixieVR
vr.dixie@gmail.com dixievr.github.io
- Oswald Pfeiffer oswaldpfeiffer.com
- Mathieu Venot mathieuvenot.com…
onstrates the following:
1. The definition's functionality employing HumanUI for the custom user interface.
2. The evaluation of the definition's ability to handle different point cloud data sets.
3. Video reports with the definition's results, animating subsequent per deviation step frames.
This definition calculates best fitting plane deviations. The number of manual set parameters has been minimized to two the facade per World UCS axis selection and the search width. This defines a box, which is used to crop protruding architectural details, which do not contribute to the analysis, but also ensures that large deformations are included in the calculation.
For the automation of the vertical and horizontal sections creation, the analyzed cloud is clustered, according to user defined number of 2d grid cells. The deviations corresponding to each cell are averaged in mean and median mode.
The process is displayed mostly in real time, with some speed up in some parts. Too long calculations have been omitted during video edit. The setup is responsive and benchmarks show that changing between dense point cloud data sets and facades is pretty quick (6.5-7.5M points, 25-45 deviation steps, 44x22 clusters), updates are calculated in acceptable timings (3-6 minutes).
I would like to thank Heumann A. and Zwierzycki M. who provided direct support with HumanUI and Volvox. Also Grasshopper3d forum users Maher S. and Segeren P., who contributed with Rhino viewport manipulation scripts.
More on Volvox:
http://papers.cumincad.org/cgi-bin/works/Show?_id=ecaade2016_171&sort=DEFAULT&search=ecaade%20volvox&hits=2629
http://www.food4rhino.com/app/volvox
http://duraark.eu/
HumanUI:
http://www.food4rhino.com/app/human-ui?page=1&ufh=&etx=…