near logic you were asking:
This is simply using a line as a reference, and finds the projection of the mesh points on it. Then, the values along the line can be used to create a linear growth. A second example is then here a simple attractor logic. The closer to the point, the larger the thickening.
A last example is using the linear increase example as a start point, but then applies the sin function to it. This creates a moving wave. Note also how this trigonometric function returns on top of itself.
I hope this helps,
Giulio
--
Giulio Piacentino Weaverbird development…
once all neighbors overlap, its fine. otherwise just think, they can not be too big, as they will be trimmed, so maybe say: quad size is given by the host surface BBX diagonal length. for the trimming: as long as u have no concave parts on the surface, u can trim each cell with all others. try to work with planes instead of the planar cells. that saves performance. use plane-plane intersection, then u get edge lines, which then u just need to chamfer together. u can find neighbors for each cell by i.e. (the cheapest option) neighbors are the 10 closest cells to a test cell. remember: u just need to limit the number of intersecting planes. this works for rather evenly distributed cells with little concave curvatures. i found useful a kind of searchlight strategy. think of a rotating cone. from all points currently in the cone, the closest is designated as neighbor. i know this is totally unscientific, but i hope i could help!ps. lets see this http://www.grasshopper3d.com/photo/faceted-shell…
can try playing around with that.
The other reasons were pretty much covered by Mostapha and Chris. Usually you want AB (the ambient bounces) to be greater or equal to 5 no matter the quality, as it is one of the most important variables for a dependable simulation. Of course it depends on the nature of your geometry but 5 min. is a safe bet.
Btw, I couldn't see which geometry you are plugging where as one pipeline was empty in the file you posted when I opened it. Could it be that you forgot a surface?
Another point is the unit range you are using. Is that really 10 lux as maximum in your picture? Because in that case it makes sense for everything to be yellow (inside and outside) as you most likely will have more than 10 lux everywhere.
P.S.: Selecting medium/high quality sets all the variables for you, no need for additional sliders. In your case you are actually overwriting the quality settings.
Kind regards,
Theodore.…
X, Y & Z parameters. At the moment 'Z' parameter is set to 0.
Now when i use a planar surface components it works well. But because i have Z parameter i need Edge surface component to work well. Edge surface gives me a funny shape, not like planar surface.
Essentially with Z parameter as 0, edge surface should look like planar surface, or not?
When i try edge surface with simple 4 points it works. The moment it gets relatively complex i do not get desired result.
All the points 1-26 in the curve were formed progressively in order i.e. 1, 2, 2...26 in GH not in Rhino.
What m'i doing wrong?
cheers
aB
…
e.
i have come as far as creating a mesh entirely in GH to my desired form. Could any-1 please help me with creating fenestrations / holes into this mesh in GH?...
I have been stuck with this since a week now...not able to find any solution to move ahead!
i have Tried Voronoi by converting this mesh in to surface...it doesn't really work on the mesh that i have created...
any-1 with some suggestions?
cheers
aB
…
in 10 minutes or so!
If you are interested to know about the process of putting the Ladybug together, what's going on right now and what's coming next, just check the workshop website for webcast information! Here: http://www.nrel.gov/buildings/2013_radiance_workshop.html
Cheers,
Mostapha…
below:
The comand prompt window (see attached image) seems to put -ad 1000 as default even if it seems to be set to 512 in grasshopper. In contrast to -ad, the modification of -ab to 3 has been taken into account. Have you set minimum values for RADparameters? If yes, would it be possible to force them to custom values?
Thanks in advance for your help
Best regards,
Aymeric…
troducción a su plugin de modelado paramétrico, Grasshopper.
Con este tipo de herramientas podemos pensar formas más allá de las cajas para diseñar, porque seremos capaces controlar con total rigor geometrías muy complejas.
En el siguiente video, podemos ver un ejemplo realizado durante un curso impartido anteriormente en Madrid por el profesor, Francisco Tabanera, en el que se realiza una interpretación del proyecto de BIG para la Biblioteca Nacional de Kazajstán.
<a title="Interpretación de la Biblioteca Naiconal de Kazakstan, de BIG" href="http://www.youtube.com/watch?v=YLldO-SxgPw" target="_blank"></a>
A lo largo del curso se realizarán diferentes ejemplos que podrán ser realizados por todos los asistentes, ya que no es necesario ningún conocimiento previo para su seguimiento.
El curso se desarrollará en las oficinas de Arquitecton en Barcelona con el siguiente horario:
HORARIO
Sábado 1 de Marzo
De 9.30 a 13.30h.
Sábado 1 de Marzo
De 15.30 a 19.30h.
El curso está planteado para un máximo de 9 alumnos, para conseguir el máximo aprovechamiento posible por parte de los mismos.
El curso tiene un precio de 90€. Estudiantes y desempleados tienen un descuento del 10%. Es posible asegurarte una plaza con un primer pago de 25€ a modo de reserva.
Apúntate aquí…
next level.
This Parametric Design course will provide the participants with the necessary knowledge and ability to use Grasshopper, a free visual programming plugin in Rhinoceros; you will be guided through a series of hands-on exercises that highlight NURBS modeling and its concepts. We will introduce Grasshopper as a graphical algorithm editor tightly integrated with Rhino’s 3D modeling tools. You will also learn how Rhino is used to render models for visualization, translate 3D models for prototyping, and export 3D models into 2D CAD or graphics programs.
English is the course main language.
Location: Düsseldorf city center
Registration and buying Tickets
www.digitalparametrics.eventbrite.de
Course Calendar:
4 Days 6 hours each
Total duration 24h
2 weekends
Date:
Sat. 17 - Sun. 18 June
Sat. 24 - Sun. 25 June
10:00 - 17:00
Getting Started in Rhino. 2 days (17 - 18 June)
Getting Started in Grasshopper. 2 days (24 - 25 June)
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Participants will be given a certificate of participation at the end of the course.
-----------------------------------------------------------------------
Course fees:
Professionals: 600€ (excl. MwSt.) Students: 500€ (excl. MwSt.) Students need to provide: Copy of current student ID or proof of student enrollment at University/School.
Group discounts:
Group of 3 professionals: 3x500 = 1500€ (excl. MwSt.)
Group of 3 Students: 3x400 = 1200€ (excl. MwSt.)
Participants are kindly asked to bring their own laptops and have pre-installed Rhino + Grasshopper.
Useful Resources:
Rhinoceros Installation (90 days full version trial available): http://www.rhino3d.com/download
Rhinoceros for Mac (includes Grasshopper) http://www.rhino3d.com/download/rhino-for-mac/5/wip
Grasshopper Free Installation: http://www.grasshopper3d.com/page/download-1
Grasshopper Free Plugins: http://www.food4rhino.com/app/lunchbox http://www.giuliopiacentino.com/weaverbird
Main Tutor:
Rihan
M.A. Dipl.Ing. Architect
Architect at RKW Architektur + Düsseldorf
For any questions about the course, please email: info@immersive-studio.com…
ll geometry.
The difference with programs like Inventor is that they are made for production, regardless of the fabrication method. I won't go into detail about that, and instead focus on the modeling process.
In this little model, the starting point actually is a bit obvious, the foundation.
The only contents in the 3dm file are 27 lines. These indicate the location of each footing, and the direction of the tilt of each column. Everything else is defined in GH with the use of numbers as input parameters.
Needless to say, instead of those lines you could obviously generate lines and control the number of columns and panels, hence establish their layout, with any algorithmic or non-algorithmic criteria you please. That marks a major difference between GH and Inventor.
You can generate geometry with Inventor via scripting/customization (beyond iLogic), with transient graphics for visual feedback similar to GH's red-default previews. However Inventor's modeling functions are not set to input and output data trees. I won't go into detail on that, but suffice to say that the data tree associativity of GH was for me the first major difference I noticed. I've used other apps with node diagram interfaces like digital fusion for non-linear video editing since the late 90's, so the canvas did not call my attention when I first started using GH.
Anyways, here's a screen capture of the foundational lines:
In the first group of components, the centerlines of the rear columns are modeled:
And the locations in elevation for connection points are set. Those elevations were just numbers I copied from Excel, but you can obviously control that any way you please. I was just trying to model this quickly.
The same was done for the rear columns:
The above, believe it or not, took me the first 5 hours to get.
Here's a screen capture of what the model and definition looked like after 4 hours, not much:
If you're interested, next post I can get into the sketching part you mentioned, which is a bit cumbersome with GH, but not really.
I wouldn't say that using GH to do this little model was cumbersome, it just needed some thinking at the beginning. You do similar initial thinking when working with a feature-based modeler.…
Added by Santiago Diaz at 12:44am on February 24, 2011