pavilion) and from that i want to fabricate it using some paper or card bored .
for modeling the pavilion i used a simple kangaroo based algorithm to generate the desired form using mesh 3d plane faces . there was no problem with this part and i was able to get the mesh from geometry out put . then i wanted to use that output mesh to panelize it and then adding tabs and the nesting and cutting to get the parts. but the problem was every tutorial i looked up were using surfaces to panelize and nest so this was the first problem to convert the mesh into a surface and then panelazing and nesting . i tried using the mesh2nurbs but it didn't work out for me . (because i needed a single surface not some poly surfaces) . (attachment | input mesh )
so i started from the beginning and tried using a surface as an input for kangaroo and thus getting a surface as an output so i did that and tried to create a surface by the Surface from points component . and the result was not good the surface was kinda messed up and the the reason was the points were not ordered well i guess . so this was another problem for me . (attachment | input surface)(picture below)
so basically i have a few main questions :
1. is there a tutorial or any topic or book or somthing that explains from 0 to 100 from design to fabrication (as an example a pavilion) ?
2. can i use the mesh to panelize and nest and then fabricate ? and are there any tips or tricks to it ?
3. is the starting from surface for me a good idea or not ?
i am extremely sorry for talking this much and i'm grateful for the time you spent on reading this .
best wishes ; Babak.
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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
…
nteraction in the design of an enclosed volume.
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Technology and architecture are coupled for the third year in Athens with a novel agenda of transforming an enclosed area and creating internal contrasting city‐life characteristics that transcend the local conditions. In collaboration with the National Technical University of Athens, Cipher City: Revolutions explores participatory design and active engagement modeling and continues building novel prototypes upon horizontal planes.
The toolset includes mainly ‐among others‐ Rhino Grasshopper, Processing and Arduino platforms. With the completion of the Programme participants receive the AA Visiting School Certificate. In 2013, the design agenda of AA Athens will connect with the agenda of AA Greece VS in the city of Patras. Participation in both Programmes will allow for a more extensive learning experience through additional tools like Autodesk Maya, Autodesk 3D Studio Max and more.
Discounts
The AA offers several discount options for participants wishing to apply as a group or participants wishing to apply for both AA Athens and AA Greece Visiting Schools:
1. Standard application
The AA Visiting School requires a fee of £600 per participant, which includes a £60 Visiting Membership. If you are already a member, the total fee will be reduced automatically by £60 by the online payment system. Fees are non-refundable.
2. Group registration
For group applications, there will be a range of discounts depending on the number of people in the group. The discounted fee will be applied to each individual in the group.
1. 3-6 people group: £60 (AA Membership fee) + 540*0.75 = £465 (25 %)
2. 6-15 people group: £60 + 540*0.70 = £438 (30%)
3. more than 15 people group: £60 + 540*0.65 = £411 (35%)
3. Participants attending AA Greece VS and AA Athens VS | 40% discount
For people wishing to attend both AA Greece VS and AA Athens VS, a discount of 40% will be made for each participant. (The participant will pay the £60 membership fee only once.)
£60 (AA Membership fee) + (540*0.60)*2 = £708
Eligibility The workshop is open to architecture and design students and professionals worldwide.
Applications
The deadline for applications is 24 March 2014. A portfolio or CV is not required, only the online application form and payment. The online application can be reached from:
http://www.aaschool.ac.uk/STUDY/VISITING/athens
Contact:
Alexandros.Kallegias@aaschool.ac.uk…
ut it locking up again.
I'm told we have to wait for Grasshopper 2 wed to Rhino 6, in months or years from now since Grasshopper isn't multithreaded. It does look for the escape key but not reliably at all.
Here is a response from the developer to my same sort of question:
http://www.grasshopper3d.com/forum/topics/emergency-top-for-solutio...
David Rutten: "if it was doable, I'd do it, but Grasshopper runs on the main UI thread which means that no key presses come through until the process is done. Right now I check for escape key state (circumventing the key-press events) at certain points during the solution, but the more I check the more I slow down the solution, and there are large areas where I can't check because it's not my code that is taking up all the processor power in the UI thread."
I solved my own problem in that case by leaving the solver disabled in the menu and then invoking it manually as a recompute menu command that works once anyway. That won't help you with a rogue script though, but will let you set things up without Grasshopper recalculating each change.
With the solver disabled, when you have to manually invoke a recompute, that necessary action can help remind you to save first.
I tried assigning the Rhino command GrasshopperUnloadPlugin to F4 in Rhino settings but in the test case of populating a box with 1000000 random points (Vector > Populate 3D), the freeze up cannot be ignored as you access Rhino, which remains grayed out as a program even when you highlight its window, and nor can you get any Grasshopper command-S in while its running forever. That's only the equivalent of 100X100X100 points yet it still locks up Rhino so long. Thinking in this very simple case clarifies things, since it it won't let go then complex scripts may have some better chance but really the problem is in the system itself.
At least the Rhino close box works, so you don't need the Windows Task Manager :-).
There are also autosave options in Grasshopper preferences that creates an autorecovery file for the next time you open the same document.…
learn, or as an alternative to your morning coffee + cross-word puzzle.
Rules:
Contributions can be posted by anyone. Either selected from a previously posted problem from the general discussion (please acknowledge original poster), a selection from one of the many grasshopper+ primers (please include credits) something you think is fun, curious about, or even something you want to learn.
We should keep the entries dated so we can track them. One new problem per day (so if you see one posted for today- there is always tomorrow).
User(you) adds post titled: date-name of problem.
Solutions will be posted with breakdowns, either in logic procedure, etc. And in the spirit of the NY Times, an explained solution will be posted as well within the following days.
Remember there are multiple ways to solve a problem- however the “official” post should include a “clean and elegant” (or simplest) solution. So that all learning can develop better scripting habits.
Rules: an explanation.
1- Submission categories are as follows:
Native
Plug In
Scripted
Each category should have a difficulty rating - 1 to 5 perhaps.
They should be included in title for clarity-
Date_NameOfProblem_Native Plugin or Script_Difficulty
2. Since we are an international community, and this is an open group- a C+G day starts at the time of 10 am local poster’s time.
3.Anyone can set the next question. However the same person cannot set two days in a row. If a question is up- then next person needs to wait until the following day to post. You can PM Danny Boyes or Myself (Monique) if you are having posting issues- (i.e.: how to post, or have been trying to post, but keep missing the opportunity)
4. Answers are presented in the typical grasshopper community response way: in the form of examples, and/or screen shots. For screen shots: make sure the nodes are legible, if you do a function inside a node make sure we can see what you did. Verbal explanation. Maybe picture of result.
The difference between this group and the general discussion is that the poster should know how to solve the problem, be able to post a solution up themselves.
5. The poster judges the answer. They should offer a sample solution as well when they declare the winner.
However overall quality control may be checked by moderators of the group.
6. Still thinking about this one. …
BIM world.
I can well imagine that modeling your design would be a lot more cumbersome in GH. It does not lend itself to the kind of wall to wall 'algorithmic design' that GH is geared towards. I suspect the approach RhinoParametrics takes will yield comparably quick results. I think GH could equal this ease of use and eventually better the MCAD-style 'feature based' approach Inventor/RP uses.
The design has a lot of arbitrary setting out points, and parameters that are not amenable to an overarching mathematical formulation like 'replication'.
It also is more fragmented, where there is no obvious 'starting point' or 'root input' for the whole design. Not sure, but changing one 'roof assembly' look like it would need to propagate to the adjacent assemblies. This would be a problem for GH's DAG?
The arbitrary nature of the design components/setting out, would ideally be defined 'by hand' using traditional CAD event-driven techniques. I guess Inventor's 'features' are like mirco GH scripts that are placed and manipulated as part of its 'main loop', and provides the user all the feed back, alignment and snapping aids that have been accumulating over the years.
The snapping would also be 'persistent', and a geometric constraints solver built into its 'history tree'. Like most MCAD modelers, defining profiles with standard geometric/dimensional/algebraic constraints, using a 'sketcher' is pretty quick, and doesn't require any scripting. The 'declarative' way that the constraints are defined, is going to be far quicker than the 'imperative' / sequential way GH's relies on parametric math. I guess, GC will regain the upper hand when the design can't be described with constraints very well.
Constraints between 'parts' or groups of features would also be constraints-solved using a 3d constraints manager or kinematics solver. Needless to say, all the features are compiled, and tested/error-trapped against the comparatively restricted gamut of possibilities; i.e. other vendor provided features.
Inventor also has iLogic. Not sure if this was used. iLogic is interesting as it functions like an 'active spreadsheet' where the user can script 'rules, checks and reactions' that have full access to all of the parameters that drive the model's features. It uses VB, so I suppose you could get 'generative' with it via .NET. Probably not as comfortable as Catia's Knowledge Advisor workbench... still.
Would the best of both worlds be something like Inventor (for the mainstream stuff), but fully scriptable (for the esoteric stuff) in one app/thread? The user would weave between a DAG and MACD style history tree?
…
cremental release is available for download. It fixes several bugs reported in the 0.9.0005 & 0.9.0006 versions. To wit:
Computer mice with smooth scrolling would not zoom well, this is fixed.
Previewable parameters with a lot of consecutive null items would crash, this is fixed.
Identical GHA files would collide during the loading process, this is handled.
GHA files with identical names would collide during the loading process, this is handled.
Solver Undo setting was not persistent, this is fixed.
Widget ZUI Zoom setting was not persistent, this is fixed.
Markov Widget Corner setting was not persistent, this is fixed.
Markov Widget Suggestion Count setting was not persistent, this is fixed.
Drag and Drop on Document and Template preview materials wasn't recorded, this is fixed.
AssignDataToParameter() COM-Access method was broken, this is fixed.
Geometry and Generic parameters with persistent data would not deserialize correctly, this is fixed.
Operator shortcuts via the Canvas popup instantiation menu no longer assigned data to the second parameter, this is fixed.
Cull Duplicates component did not always show the correct label upon deserialization, this is fixed.
Legacy VB/C# components would not correctly deserialize List access on input parameters, this is fixed.
Cloud Display component would still display old sprites on disconnect, this is fixed.
Minor changes to a document would trigger lengthy preview cache updates, slowing Grasshopper down. This is fixed.
Sphere 4Pt did not work correctly, this it fixed.
Failed data conversions in parameters would result in missing entries, this is fixed.
Text Tag components (2D & 3D) would not bake via the component menu, this is fixed.
There are also some new features:
Added Jump object for quickly navigating across a Canvas (Params.Util dropdown).
Added Relative Differences component which is basically the inverse of Mass Addition (Math.Operators dropdown).
Added tooltip wiggle controls to the Preferences window, Interface section.
'Draw Full Names' now also attempts to change the display of existing components, but only in the active document.
Drag+Dropping GHA, GHPY and GHUSER files onto the canvas now puts the original file into the bin.
Replaced Set Union component with a new one that has variable input parameters.
Replaced Set Intersection component with a new one that has variable input parameters.
Replaced And and Ternary And components with a single new one that has variable input parameters.
Replaced Or and Ternary Or components with a single new one that has variable input parameters.
Replaced Concatenate component with a new one that has variable input parameters.
Concatenate component now has a segment join option available via the component menu.
Added Digit options to the Transform Matrix Display object.
Integer parameters which represent options now have more informative context menus.
--
David Rutten
david@mcneel.com
Poprad, Slovakia
…
Added by David Rutten at 11:06am on September 14, 2012
Introduction to Grasshopper Videos by David Rutten.
Wondering how to get started with Grasshopper? Look no further. Spend an some time with the creator of Grasshopper, David Rutten, to learn the
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
…