rendo posizioni lavorative fino a qualche tempo fa impensabili. Questo nuovo approccio ha infatti la caratteristica di avvicinarsi alla programmazione informatica, ma con un approccio facilitato grazie ai componenti visuali.Hai bisogno di un motivo in più per usare Grasshopper? Eccolo! Trattandosi di uno strumento ancora in fase di testing (anche se perfettamente funzionante) l’applicativo è completamente gratuitoScarica la tua versione e inizia subito ad usarlo!Corsi certificatiLe lezioni sono tenute da Antoni(n)o Marsala, docente certicato McNeel, con alle spalle oltre 5 anni di esperienza nell’insegnamento di Rhinoceros. Negli ultimi anni abbiamo tenuto in grande considerazione l’evolversi di questo plugin e abbiamo deciso di investire sulle sue potenzialità.Nel Febbraio del 2011, grazie ad Antoni(n)o Marsala, è uscito Algoritmi Generativi, edizione italiana del libro di Zubin Khabazi Generative Algorithms with Grasshopper. Entrami sono scaricabili gratuitamente e rappresentano dei validi strumenti per capire il mondo di Grasshopper.Da diversi mesi inoltre, il Mandarino BLU, ha attivato una collaborazione con La Bottega di Galileo di Pisa, officina del libero scambio di idee, presentando dei progetti formativi post universitari, per coloro che vogliono entrare nel mondo della progettazione di nuova generazione.Dalla collaborazione con Multiverso, nasce invece un progetto formativo più ampio sviluppato a Firenze in via Campo d’Arrigo 40rLeggi il nostro programma didattico o scarica la versione in pdf…
y interesting and smart way to construct surface. I tried some experiments out using a similar idea - take a developable surface which has a series of holes cut through it now offset that surface and unroll both of them, once both have been cut out insert a dowel into the holes (the dowel represents the offset distance). In the end the shape is recreated via tension and in that way there are some similarities. With your concept the thing I have trouble figuring out is how do you cut the variable angle kerfs. Are you using a 5-axis swarf cut, a cnc panel saw - how do you control this? It would be great to have a set of constraints which limit the number of possible angled cuts - these limits would equal the number of v-groove bits you have in the cnc - and then you could just cut the lines with the programmed tool which matches the given angle. Or maybe I am completely wrong, now I think I am wrong, about the execution and you are only changing the gap between each kerf and the angle of the side wall stays constant.
Anyway to answer your question catia can analyze the characteristics of a piece of formed material (this analysis is usually applied to sheet metal and to design forming tools)it's just a matter or defining the material to match that which you are using. Another possibility although not as numerically clear is using a simulation tool like Maya cloth or Virtools. I know this maybe less likely but you can define all sorts of materials in Maya and then simulate their behavior under numerous forces and constraints. I think it would work it's just how do you extrapolate the values Maya needs and then correlate them back into the cloth parameters. Once it yields the final formed mesh then further analysis could be performed in cosmos, ansys, or catia.
I have one other suggestion. In solidworks if you perform a lofted bend on a sheet metal part and then generate a flat pattern it creates a large set of bend lines representing how to perform the bending of an unusual shape using a metal brake. It seems like those bend lines could be machined with you technique to create lofted forms instead of extrusions.
What materials seem to work best so far, have you only been using wood (the purple stuff is probably not wood)?
If you are ever in Los Angeles I have a shop with a 3 axis and 5 axis router, a large vacuum bag, and all the other things to experiment on this and would be open to this.…
k ecotect; and 'export mesh to ecotect' usually auto link, but my computer won't link. Please help out.
please post such request in our group so we get an request email, thx.
For your problem you have to use the newest geco v1.033 and grasshopper v09.0012 or higher.
This will solve your problem.
If you use grasshopper for rhino 5 we will release a updated version which also works for this.
currently you have to copy the files manually to the components folder
thx....
After installed the new version of grasshopper geco, here is error again
Error: solution exception: Could not load file or assembly 'Geolink, Version=2.1.563.0, Culture= neutral, Public KeyToken=bull' or one of its dependencies. The system cannot find the file specified.
Here is the error on ' Link Ecotect (EcoLink) ' in grasshopper geco.
Urgent!!! Please help!
PLEASE IDENTIFY which files copy manually from where to components folder?
thanks…
ok at the various available ways to reference geometry and data in ghPython:
ghdoc is the standard document for rhinoscriptsyntax. We can use it all the time and it is meant to be as quick as possible, in order to slow down rhinosciptsyntax in Grasshopper as little as possible.
It is also possible to just reference or create geometry in memory using RhinoCommon methods.
The third and last document is the usual Rhino document, which is also accessible in ghPython: Rhino.RhinoDoc.ActiveDoc.
All these three styles are valid and useful for certain purposes and code writing styles.
Specifically, you are asking to take data from ghdoc, obtain the geometry, and finally add it to the Rhino document. This is essentially baking in ghPython, right?
I am attaching an example.
When you have a document available and a Guid, you can use rhinoscriptsyntax.coerceXXX(guid) in order to obtain geometry, or specific types of geometry.
Similarly, scriptcontext.doc.Objects.AddXXX() allows to add geometry to the document. There are lots of variants for this. You can refer to the RhinoCommon documentation for all methods in the ObjectTable class, or all methods in the ghPython one are on GitHub.
Please let me know if you need more information. I hope this is helpful,
Giulio--
Giulio Piacentinofor Robert McNeel & Associatesgiulio@mcneel.com
bake_into_rhino.gh, 5 KB…
s lectured at my university; one of his projects is a free-form shell pavilion, based off of the finger-locking joinery of sand dollars. He has a great time-lapse video of the form finding process on his website, which is worth a watch if you haven't seen it already. It appears as if he uses Galapagos or some other evolutionary approach for his solution. When I saw that Daniel Piker replicated this using only Kangaroo, I was thrilled.
I believe that in order to get smoother, less clumsy results from the PlanarHex, it is almost necessary to ensure that your setup is conducive for the definition to work. I think this includes beginning the definition with the hexagons having the ability to be EITHER concave or convex (Lunchbox). In Daniel's script, I think he set the default value at .5, which was in the middle of the two options and resembled a square. I think also that the number of hexagon cells in the U and V direction should be setup in a way that they can lend themselves to a proportion that is used later in the definition.
Here is a quote from Piker that better explains the importance of the proportions and edge lengths in the setup:
The ratio of U/V divisions need to be chosen so that the initial edge lengths are close to equal.
When planarizing, particularly with hexagons, we need to ensure that the polygons do not become self intersecting. Here this is achieved by constraining the maximum and minimum edge lengths to some ratio of the overall average edge length. For this to work though, it helps if the initial state has them within or close to this range. [...]
Judging from the photo you provided of your results from the PlanarHex, I think some of the issues may be a result of you having a mixture of trapeziums and hexagons. This could potentially be causing the mangled appearance of the resultant shell.
Again, I do not know if this will be too much help for you as I am somewhat of a beginner with Kangaroo. But if nothing else, I hope that this can serve as a catalyst for what could be an interesting discussion about free-form vaults and shell structures... Also, check out the work of Philippe Block if you haven't. Here's a picture of a hexagonal vault model that he designed that is quite lovely.
- William…
component that let you modify an existent .EPW file as you want, also just few hours or days or months of it.
This is a preview of it.
This new potential component creates a copy of Epw file automatically starting from an existing EPW file. In this case I modified dry bulb temperature from June to September, I added 5 °C to the original values.
or you can create your own values, for example here I plugged random values.
Or you can copy and paste your values from .xls column of a weather data into a panel component.
All your modified files are stored into a folder that you want.
I think should be useful a component like this. Anyway, I'll try to finish it as soon as possible.
Best
Antonello
…
n static. The eight initial curves are control point curves so that I can sculpt the overall building form according to other external data, and have the panels (and morphed geometry) adjust with the building's new form.
Also, if I am to add floors, I need the panels to always have the same height in the z axis (as if the entire form is being contoured at a regular interval). The facade should automatically adjust if I pull the upper most controls up. For example, if I pull the upper control points of the curves up 20m, the facade would generate another 5 floors with a 4000m height each.
Hope you can help me out. Thanks again!
…
holes on each so speed increases). Zero radius circles are skipped.
The image dimensions in pixels are defined in small panels (X=485, Y=759) and used to calculate height/width ratio. That is used to define height based on the 'X' slider (500), which defines width overall.
The 'cell size' slider is also in units and determines resolution indirectly. For any given X value, increasing 'cell size' reduces the number of grid cells (resolution) and vice-versa.
Independent of other parameters, 'Isotrim (SubSrf)' splits the base surface into sub-surfaces, onto which the circles are projected. The 'SrfSplit' does the heavy lifting (can be SLOW!) and finally, 'Sort' is used to select the resulting surfaces that contain the holes.
Benchmarks:
X = 500, cell size = 10, 3161 circlesnine subsurfaces: 'SrfSplit' = 6.6 minutes, 'Project' = 13 secs.16 subsurfaces: 'SrfSplit' = 2.3 minutes, 'Project' = 17 secs.
X = 500, cell size = 5, 12542 circles (shown)35 surfaces: 'SrfSplit' = 30.6 minutes, 'Project' = 57 secs.
As noted before, a very long-standing, well-known bug in Grasshopper fails to save the Image Sampler component when I save a copy of your file. Very annoying, but there is a work-around. Copy/paste and connect the Image Sampler from the code you posted above into the place I reserved for it.
"Pro Tip": Always work at low-resolution until your algorithms are proven before cranking up to 10K+ geometry counts!
Attached file has low resolution settings with 'Project' and 'SrfSplit' (red group) disabled.…
y working on is a tensegrity structure that uses cables and a tensile fabric to apply traction. The basic cell of the structure is a sail with two parallel rods.
The easy one was the fabric anchored to the extremes of the rod. I got great results with the tensegrity model , very similar to physical models that I was working on.
But then I tried the same thing with the fabric anchored all along the rods, but it proved to be hard (read all the "rod discussion"). I tried the bending force, but was too unstable. The best model I got was by applying different stiffness to the mesh, specifically, to the lines that coincide with the anchors.
It's by no means the solution that I had in mind, but the next days I'll be testing it with the structure. I came across with the next thing to my ideal solution, Daniel's boat (https://vimeo.com/30128894), but I couldn't replicate it. Anyone has some idea of a different, more rigid solution? Even in K2, which I really don't understand yet, but any clue would be helpful.
Aside of that, I was also having trouble applying real values of stiffness. The third archive has the same definition that the first, but with real stiff values (the rods are wood, k=10^7 N/m, cables are nylon k=2x10^5 N/m). I adjusted the timestep and the subiterations, but it doesn't work as stable and smooth as the whatever-stiffness-sail. I don't know if isn't correctly calibrated, or my computer its too old (it pretty old and slow) or simply isn't a good definition.
If anyone has any idea it would be very much appreciated!
Antonio…