actually can perform using a dedicated software:
in 3D:
https://www.facebook.com/francescopiasentini/videos/523532707845171/
in 2D:
https://vimeo.com/189618609
The output of Modal Analysis (at a given frequency) is a list of point (x,y,z), each of them has the three coordinates and the maximum displacement in the direction normal to the surface (that's not flat)
Point number x y zmax1 24,007565 337,876028 -0,6545572 -28,0404705 337,947773 0,7760153 57,141457 316,757768 -0,8413914 18,667466 314,814543 -0,235288
My idea is:
-import stl surfaces of the object (violin)
-import Modal Analysis data
-deform stl (or Nurbs) surfaces using something like a customized CageEdit
-animate this deformation from zero to maximum displacement
-give a color to deformation (or first-second derivative of the interpoled deformation curves)
My wish is to have closed surfaces at any steps, and to create "natural" deformation shapes.
I just tried to import MA data. I was trying to create an array of circles with given x,y,z and radius, I could not figure how to separate information of position and radius when importing the file:
file content:
0,1,0; 5;2,1,3; 2;5,2,6; 4;
thanks for yout attention.
Looking forward to hear you soon!
Francesco
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ake a network of lines (i.e. a graph) and make a Plankton Mesh, from which you can use Cytoskeleton to make a solid mesh (and then smooth it with Weaverbird).
Works with ngons (polygons with 3 or more sides). Other examples I found only worked with tris and quads.
Works on open or closed surfaces
While these examples start with a surface, you could start with a network of lines and make a patch surface
This is meant for 2D networks/surfaces. I haven't attempted filling a 3D volume. My guess is this wouldn't work as it would require a non-manifold mesh that Plankton wouldn't handle.
Note similar results could be achieved with the following:
TSplines
MeshDual (dual of a tri mesh, not as much freedom/control)
Working backwards, here is the GhPython script from Will Pearson that builds a Plankton Mesh from vertices and faces. The vertices are a list of 3D coordinates, the faces are a tree a lists, with each list containing the indices of vertices that form a closed loop. From Will, "Plankton only handles manifold meshes, i.e. meshes which have a front and a back. This orientation is determined by the "right-hand rule" i.e. if the vertices of a face are ordered counter-clockwise then the face normal will be out of the page/screen."
# V: list of Point3d # F: tree of int
import Grasshopper appdata = Grasshopper.Folders.DefaultAssemblyFolder
import clr clr.AddReferenceToFileAndPath(appdata + "Plankton.dll")
import Plankton
pmesh = Plankton.PlanktonMesh()
for pt in V: pmesh.Vertices.Add(pt.X, pt.Y, pt.Z)
for face in F.Branches: face = list(face)[:-1] pmesh.Faces.AddFace(face)
These vertices and faces are precisely the output from Starling. Starling takes in a list of Polylines which form the (properly oriented) face loops.
The polyline face loops can be generated...
Directly from Panels on a surface using LunchBox
Using any network of lines/curves on a surface (curves will need to be converted to polylines before Starling)
The latter was achieved using the Surface Split command, then converting the face edges (converted to curves) into polyline loops to represent faces.
…
hope this number will grow in future. Currently available features are:
1) Creation of 2d or 3d context for any kind of building related analysis: automatically generate the 2d/3d surrounding buildings for the location where you would like to perform visibility, solar radiation, cfd or any other type of analysis. You need some other plugin for the last three, like Ladybug. It only creates the context=surroundings! The "automatic generation" process also includes creation of the local topography (terrain) along with buildings.
2) Identification of certain 2d or 3d elements in the created context. For example: selection of all hotels, parks, hospitals, restaurants, residential buildings etc.
3) Performing direct terrain analysis (hillshading, slope, ruggedness, roughness, water flow...)
4) Creation of terrain shading masks and horizon files for further solar and photovoltaics analysis.
Gismo will be very grateful if he could get any suggestions, improvements, bug reports and testing in the following period. In case you are willing to provide any of these, the requirements, installation steps and .gh example files can be found here, here and here.
Thank you in advance !!…
Added by djordje to Gismo at 9:10am on January 29, 2017
ive collaborative environment.
TYPE : Course module and Workshop
The event is open for anybody interested from all the fields of design, including: architecture, interior design, furniture design, product design, fashion design, scenography, and engineering.
1. COURSE MODULE (20-23 April 2014) - optional
+ type: 3 days intensive course regarding basic knowledge in parametric design (LEVEL 1)
+ software: Rhinoceros & Grasshopper
+ plugins: Kangaroo, Weaver Bird, Lunch box, Ghowl, Geco
+ achievements:
- acquainting to the components & the concept of Generative Design
- understanding the strategies in Algorithmic Design
- how to easily insert simple mathematical equation into the project to gain more control
- how to utilize proper plugins with respect to their nature of the project
- interacting with different analysis platforms such as Ecotect & remote controller
- solving several exercises with different scales( 2D- 3D ) during each phase of the workshop
2. WORKSHOP (23-27 April 2014)
A 5 day Design-Based Research Workshop exploring new techniques in Digital Architecture/Fabrication, with a specific focus on the use of generative systems and parametric modeling as tools for creative expression.
Our ultimate goal is to increasing the efficiency of utilizing digital tools in parallel with geometric performance of the primitive design agent.
+ + CONCEPT
Fashion and Architecture are both based on basic life necessities – clothing and shelter.
However, they are also forms of self-expression – for both creators and consumers.
Both fashion and architecture affect our emotional being in many ways.
The agenda of this workshop is to investigate on the overlap between these two areas of design, art & fashion.
Fashion and architecture express ideas of personal, social and cultural identity, reflecting the concerns of the user and the ambition of the age. Their relationship is a symbiotic one and throughout history, clothing and buildings have echoed each other in form and appearance. This only seems natural as they not only share the primary function of providing shelter and protection for the body, but also because they both create space and volume out of flat, two-dimensional materials.
While they have much in common, they are also intrinsically different – address the human scale, but the proportions, sizes and shapes differ enormously.
+ + + OBJECTIVES
So far, Architects have been using techniques such as folding, bending etc. to create space, structural roofs or different other structural shapes.
The agenda of this workshop goes further with the investigation of algorithmic thinking through generative tools Integrated in design.
The challenge is creating a bridge that connects these two areas of design, architecture and fashion that perform at two opposite scales.
+ + + + TECHNICAL BRIEF
In the early stages physical models and low-tech strategies will be used, allowing the participants to gain a greater understanding of materials, fabrication and assembly methods as well as simple, yet pragmatic structural solutions.
Later in the workshop these strategies will be digitalized and elaborated using software visualizing tools such as Rhinoceros and the algorithmic plug-in Grasshopper.…
arametric Design, in the history of architecture, has defined many rules for current designers and for future practitioners to follow. One of the strongest aspects that are prominent from this style is ‘geometry’. Arguably, there is nothing new about geometry and aesthetics forming the most prominent aspect of any style or era. The language of any style, in the long history of architecture, is visually defined by geometry or shape, beyond the principles that define the core of the style. In the distinguishable style of parametric architecture, geometry has played and is continuing to play an integral role. And with this fairly young style, there are many strings of myths and false notions associated.
The workshop aims to provide a detailed insight to ‘parametric design’ and embedded logics behind it through a series of design explorations using Rhinoceros & Grasshopper platforms, along with understanding of data-driven fabrication strategies. An insight to Computational Design and its subsets of Parametric Design, Algorithmic Design, Generative Design and Evolutionary Design will be provided through presentations, technical sessions & studio work, with highlighting agenda of using data into Hands-on fabrication of a parametrically generated design. A strong focus will be made on ‘geometry’ and ‘matter’.
// Methodology
Workshop has been structured to teach participants the use of Grasshopper® (Generative modelling plug-in for Rhinoceros) as a generative tool, and ways to integrate it with Hands-on Fabrication process. A strong agenda on ‘geometry’ and ‘matter’ will form the focus of the studio with design experimentation through computational & parametric techniques, culminating into a manually fabricated wall panel using understanding of data-driven design during the course of workshop.
Day 1 Topics / Agenda
Rhinoceros 3D GUI and basic use
Installing Grasshopper & plug-ins
Grasshopper GUI
Basic logic, components, parameters, inputs, numbers, simple geometry, referenced geometry, locally defined geometry, baking, etc.
Lists & Data Tree: management, manipulation, visualization, etc.
Design Experimentations with Geometry & Data
Understanding Data for Manual Fabrication
Day 2 Topics / Agenda
Design Experimentations with Geometry, Form, Matter
Data for effective numbering and strategizing during Manual Fabrication
Collaborative effort for Hands-on ‘making’ process
Analysis & Evaluation of Fabricated Geometry
Documentation…
raries by entering %appdata% into the dialog box and browsing to the Grasshopper Libraries folder to find KangarooSolver.dll.)
Oh wow, because of "physics" there is substantial gap between the surface layer of many particles and the inner truss, so we already have some form of boundary adaptive 3D meshing, albeit only in the surface "XY" direction not the normal "Z" direction. There's less full XYZ directional force on the particles at the surface, so they can cluster more there due to the forces from within having to struggle much more against one another from all directions. Something like that.
Differing surface curvature has not much if any affect on particle packing:
The actual physics of electrons along a conductor says they are all on the surface, where they concentrate at sharp features, but here I imagine if they concentrated more at the finger tip, they would then push more interior particles away, which is not very adaptive after all.
Higher falloff exponents than 3 (actually -3) give much more even distances of surface vs. interior, so my color coding by length doesn't even work and there are visibly a lot more interior particles:
I confirm that exponent -2 drives everything to the surface, but also gives a quite odd artifact that they are not minimizing energy by close packing away from each other but are forming squares that seem to align with the UV directions of the container:
Exponent -4 then and even more -5 maximize the interior population, but beyond -5 it it becomes unstable and bounces around like crazy.
The Kangaroo2 custom goal C# script is simple enough:
I'm still confused how to attenuate the effect according to distance to the surface and also curvature of the surface when you are getting close to it since I don't understand if Kangaroo is running the entire Grasshopper script each iteration or not so I could just do calculations via Grasshopper stuff and feed it into the C# script as needed?
…
Added by Nik Willmore at 7:43pm on August 12, 2015
Rhinoceros y Grasshopper los participantes puedan desarrollar mediante un flujo de trabajo digital las técnicas de Diseño Paramétrico, mediante métodos algorítmicos generativos, para su implementación en procesos de diseño y representación de los mismos, a través de:
Proliferación en topologías complejas mediante Definiciones visualizados Estrategias de Mapeo y Análisis evolutivos en Tiempo Real Técnicas avanzadas de modelación 3D e imágenes foto realistas Vinculaciones entre criterios Predefinidos paramétricamente y Morfologías resultantes
Detalles: ∙ Instructores / Matías Casciotta y Salomón Escobar / Integrantes Ha-11 ∙ Todos los niveles de experiencias son bienvenidos ∙ Recursos: Interfaces Rhino + Grasshopper / Manuales PDF / Definiciones GH Preparadas ∙ Los participantes deberán traer su propia laptop con todo el software y actualizaciones (originales o versiones de demostración) previamente instaladas. (Se fijara una fecha unos días antes para revisar que todos los equipos estén en orden y listos para trabajar).
Fecha y Lugar ∙ 3 semanas a partir del 15 de Marzo del 2012 - Lunes y Jueves de 19:00hs a 21:00hs - ∙ El taller se dictara dentro del ámbito de cursos del Arquitecto Alejandro Correa.
INFORMES: Ha11 en Facebook ha.11.arquitectos@gmail.com…
eroberfläche des Grasshopper Programms
Funktionsprinzip eines grafischen Algorithmus-Editors (Datenfluss)
Unterscheidung von Parametern (Datentypen) und Komponenten (Datenverarbeitung)
Erzeugung, Bearbeitung und Analyse von Geometrie-Typen: Punkte, Vektoren, Linien, Kurven, Flächen (surfaces, brep) und Netze (meshes)
Strukturierung der Daten anhand von Listen und Bäumen
unterschiedliche Verknüpfungsmöglichkeiten von Parametern (data matching)
praxisnahe Grundlagen der Geometrie und Vektorrechnung für generatives Design
effizienter Aufbau von parametrischen Modellen anhand Übungsaufgaben
Auszug von Daten aus Modellen für die Fertigung; Daten aus Tabellen (Excel, CSV) importieren, exportieren
Einsatz von benutzerdefinierten Komponenten (custom components)
Vorkenntnisse: Rhinoceros3d Benutzeroberfläche der Software: Englisch Unterrichtssprache: Deutsch
Details und Anmeldung:
www.vhs-sha.de
click: SUCHE
Kurstitel: GRASSHOPPER
oder direkt:
http://www.vhs-sha.de/index.php?id=90&kathaupt=11&knr=3151053&kursname=Grasshopper+I
Trainer: Peter Mehrtens
Kursdauer: 3 Tage / 8 Stunden pro Tag
Freitag, 19.07.2013, 08:00-17:00 Uhr Samstag, 20.07.2013, 08:00-17:00 Uhr Sonntag, 21.07.2013, 08:00-17:00 Uhr Ort: Volkshochschule Schwäbisch Hall, im Haus der Bildung
Teilnahmegebühr: 349,00 € Teilnehmerzahl: 4-10 Personen
…
berfläche des Grasshopper Programms
Funktionsprinzip eines grafischen Algorithmus-Editors (Datenfluss)
Unterscheidung von Parametern (Datentypen) und Komponenten (Datenverarbeitung)
Erzeugung, Bearbeitung und Analyse von Geometrie-Typen: Punkte, Vektoren, Linien, Kurven, Flächen (surfaces, brep) und Netze (meshes)
Strukturierung der Daten anhand von Listen und Bäumen
unterschiedliche Verknüpfungsmöglichkeiten von Parametern (data matching)
praxisnahe Grundlagen der Geometrie und Vektorrechnung für generatives Design
effizienter Aufbau von parametrischen Modellen anhand Übungsaufgaben
Auszug von Daten aus Modellen für die Fertigung; Daten aus Tabellen (Excel, CSV) importieren, exportieren
Einsatz von benutzerdefinierten Komponenten (custom components)
Vorkenntnisse: Rhinoceros3d Benutzeroberfläche der Software: Englisch Unterrichtssprache: Deutsch, auf Wunsch auch Englisch
Details und Anmeldung:
www.vhs-stuttgart.de
Dieser Kurs wird in Kooperation mit ifBau gGmbH und VHS Stuttgart angeboten, und wird von ifBau als Fortbildung für Mitglieder der Architektenkammer BW anerkannt.
Trainer: Peter Mehrtens
Kursdauer: 3 Tage / 8 Stunden pro Tag
Freitag, 24.01.2014, 09:00-17:00 Uhr Samstag, 25.01.2014, 09:00-17:00 Uhr Sonntag, 26.01.2014, 09:00-17:00 Uhr Ort: VHS Stuttgart, Fritz-Elsas-Str. 46/48
Teilnahmegebühr: 510,00 € Teilnehmerzahl: 4-10 Personen
…