onstrates the following:
1. The definition's functionality employing HumanUI for the custom user interface.
2. Color based segmentation in manual and auto modes.
3. The evaluation of the definition's ability to handle different point cloud data sets.
This definition performs color based segmentation in two modes.
A manual mode, that implements the Delta-E CIE 2000 color difference formula, for targeted feature detection. An auto mode, that employs a simple RGB Color Range algorithm for quicker preliminary results.
RGB to XYZ to CIELab conversion and Delta-E scripts were based on Colormine's project code from github. Results have been compared and verified with the results of http://colormine.org/color-converter and http://colormine.org/delta-e-calculator/Cie2000.
Each stored class is charted and can be accessed through the UI, as shown at 2:30, where Delta-E CIE 2000, in CieLab color space, output results were found to be in perceptive conformity with human eyes, far superior to the preliminary RGB implementation.
Initial definition versions could process highly subsampled clouds in acceptable timings. Further research showed that employing the multithread processing of Volvox components, bundling the Delta E formula with the RGB to CIE lab color conversion script, per color segmentation calculations for a one million points point cloud would go down from 23 (c# script component) and 8 (vb script component) seconds to approx. 1 second (volvox script cloud component), thus allowing the segmentation of less subsampled point clouds.
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=
ColorMine:
https://github.com/THEjoezack/ColorMine…
de modelación en 3D y aprovechen las ventajas que plantean, como mejorar su proceso de diseño y explorar múltiples alternativas para un proyecto en lapsos de tiempo muy reducidos en comparación de los métodos tradicionales.
En consecuencia, los alumnos tendrán la posibilidad de disminuir sus tiempos de trabajo, con resultados iguales o incluso mejores a los que obtenían con anterioridad; mejorar la calidad de sus presentaciones y, lo que es más importante, ampliar la fundamentación de sus proyectos en el aspecto funcional y formal, dependiendo de las características del proyecto.
Para lograr estos objetivos, se contemplan dos temarios y un ejercicio práctico.
Al finalizar el curso, los asistentes serán capaces de manejar Rhinoceros y Grasshopper en un nivel medio, con el objetivo que el alumno pueda continuar aprendiendo con alguno de nuestros siguientes workshops o de manera autodidacta.
Además del contenido teórico se incluye un ejercicio práctico, la magnitud del ejercicio y el material que se le destine se definirán con base en el número de asistentes.
El workshop tiene una duración de cinco sesiones:
Sesión 1 – Temario de Rhinoceros
Sesión 2 y 3 – Temario de Grasshopper
Sesión 4 y 5 – Ejercicio práctico
El horario es de 9 am a 4 pm, con una hora de receso para tomar un refrigerio.
No es necesario traer el equipo necesario para trabajar, se cuenta con un equipo para cada persona asi como el material de trabajo para el ejercicio práctico, por lo cual se les recomienda que no traigan portátiles u otro material, únicamente dispositivos de almacenamiento si desean guardar sus trabajos.
El costo del evento es de $3,500 estudiantes y $4,000 profesionales.
(Para poder tener el descuento de estudiante es necesaria una constancia de la universidad de la que proviene, acreditando que el interesado está cursando algún semestre de la carrera. Personas graduadas que estén cursando una maestría o algún grado superior no reciben el descuento).
Para apartar su lugar pueden realizar un depósito de $1,500 y terminar de efectuar el pago antes del 15 de abril si es mediante un depósito bancario o el primer día del evento en efectivo.
El evento se realizará en las oficinas de Vegasot, ubicadas en Circuito Cirujanos No. 23-A
Cd. Satélite, Naucalpan, Edo. de México 53100
http://www.vegasoft.com.mx
Para cualquier duda por favor escriban un correo a luzytextura@gmail.com, por teléfono al 044 55 4381 3302, o en facebook.com/archbernardorivera…
3 arms and 6 legs (PS: Remember: in real-life our fee is proportional to the budget > thus > like Godzilla > the bigger the better).
In the mean time (auto detection of struts < min Allowed == true) get the gist of the whole "torque" issue, the other gist not to mention the other-other gist.
Of course you can opt for NOT making the cables (green) that stabilize the "extension" part of a given tensegrity strut ... yielding the Mother in Law syndrome (fat and ugly):
But ... hmm ... well ... are you really the chosen one? Here's your chance for the ticket to Paradise (full Lord's assistance, that is). Identify this engine, name the designer and the related immortal racer (when men were men).
Moral: Heaven can wait. …
een them. I made so drawing to explain the shape I wannt to givve to my object.
I don't really nead 3D because my object will be print in a laser cut. So I just nead the drawing of the pieces.
I give you the GH and the rhino. For the moment someone help me to build one clip. But there are bugs on it when I change parameters.
Rhino file: TESTPAUL.3dm
Base GH file: TestPaulGH.gh
V2 GH file: TestPaulGHRev1.gh
…
and the degree of your periodic curve is 3, then start picking one point to the left. If the degree is 5, start pickin 2 points to the left, etc.
Every curve has a domain. A domain is a numeric range defined by two numbers (a lower and an upper bound). Within the domain, the curve exists and the equations which govern the geometry of the curve yield decent answers. The lower limit represents the start of the curve, the upper limit the end of the curve. Everywhere in between you can evaluate curve properties (position, tangency, curvature and any other derivatives, tension, torsion etc. etc.).
There is no significance attached to the actual numbers in a domain. All that is required is that the lower limit is smaller than the upper limit. When we create curves in Rhino we tend to pick domains that represent the length of a curve, but if you scale a curve afterwards you change the length, but not the domain.
Curve parameters are numbers inside this domain. Basically, think of all curves as finite line segments which can be bend, kinked and stretched in 3D space. Curve parameters are locations on the 1-dimensional space that is defined by the line. The curve equations are all about converting those one-dimensional parameters into three-dimensional points and vectors.
Like I said, the mathematics are pretty involved and periodic curves are more difficult still.
--
David Rutten
david@mcneel.com
Tirol, Austria…
Added by David Rutten at 4:23am on September 13, 2013
p; 3D Urban ModelingOn the topography subject I get the next message: "One or more boundaries may be outside the bounds of the topo dataset" I'm not sure if it's the .IMG file I'm loading since I found so many IMG files nearing my polyline area (Miami Lat:26 Lon:-81 aprox.) or maybe my polygon doesn't match the topo area? I have no idea why it isn't working :(On the Shapefile subject, haven't been able to find a Building Height SHP File, so far have downloaded around 8 SHP files which only contain Polylines, my solution is to meanwhile randomize Z heights, but of course this data is not "technically" correct.P.S.: I've already tried all example links and also the ones posted by you and Benjamin in this video.Been strugling last few days, hope you can help me, thanks in advance!!…
raphics card (NVIDIA Quatro K4000) that Freeform recommended but that didn't seem to help as much as the memory, especially since it's much cheaper now than ever before so I got the fastest memory I could find too, with heat sinks on it. I only have four cores (i7 @ 2.66GHz not overclocked) but software usually can't use them all anyway except in rendering. I don't even have SSD disks yet, since Windows 7 is so stable I haven't had to reinstall Windows for years which is what it would take to make me go through upgrading my disks. My single monitor is large but not high definition (La Cie 324i at 1920x1200). I have also tweaked Windows 7 to rid it of any fancy interface features, so my system looks rather old school.
Also, I'm an organic synthetic chemist by training, so my patience level is very high with continuous parameter tweaking in Grasshopper and constantly force quitting Rhino by right clicking it in the Taskbar to use "Close window" instead of the inconvenient Task Manager. I rely on the Grasshopper preference settings that turns on recovery file creation, and that system works nearly always, letting you re-open unsaved work with the Solver deactivated as an option so you can change the parameters back to mellow. So when I make things look easy, that's because compared to chemistry, merely quitting a program all day in order to change a parameter in Grasshopper, is something I hardly even notice having to do so often. It certainly bothered me early on, a lot, before I understood that Grasshopper 2 was coming one day, and that the existing program just wasn't designed to handle what it's being now taxed with.…
Added by Nik Willmore at 11:19pm on August 9, 2015
component in GH for a project im working on. as part of that component I want to dynamic show text the rhino viewport but I don't want to have to return a value that I then plug into the "text tag 3d" component. I want to build a similar method into my custom component.
therein lies my problem. I haven't yet figured out how to get my vb code to produce text.
my latest attempt looks a little something like this.
Dim TestPoint3D As New rhino.Geometry.Point3d(0, 0, 0) Dim TestVect As New rhino.Geometry.Vector3d(0, 0, 1) Dim TestPlane As New plane(TestPoint3D, TestVect) Dim TestText As New display.text3d("bob", TestPlane, 10) ListItem = TestPlane TextItem = TestText
but I get nothing out of it.
latest theory is to try using "Draw3dText Method (Text3d, Color)" but this is where ive hit a wall
if I understand how this works than I would think I would code this
Dim TestText As New Rhino.Display.DisplayPipline.Draw3dText( text here, and color here)
but the hint that im getting after "DisplayPipline" doesnt show a "Draw3dText" method?
so im confused?
again my overall goal is to get text to display in the viewport directly through my component
any thoughts or ideas, or if im even in the ballpark on this one would be helpful.
thanks!…
) In the Rhino view port it is not possible to modify it until is backed (and I don't want!) I need to place several images each one in a different place.
2) Is it possible to use another component THAT DO NOT CONVERT INTO BLACK AND WHITE, the pictures??. I need to set COLOR images in a 3D model, using grasshopper. thanks!
Any comment or suggestion would be welcome!!!
Thanks a lot!
…
brep.
I am obviusly doing this in grasshopper (using a image to map the lines with the imagesampler) but this question goes beyond the software. it is more about geometry, I guess.
it involves to unwrape a geometry, but having always continuity from one to an other.
here a image of the concept
You have to keep in mind that the brep (in this case a circular shape) its longer than the shape of the plane. so it is difficult to place them flat in photoshop to paint and create the continuity.
here the images that I am using to map the lines on the geometries. I am using a definition that creates lines from a image black&white like this one
but in order to achive the continuity from the ground to the facade of the building I am thinking that the only posibility would be to use a software where I can paint a gemetry in 3D. LIKE ZBRUSH
but how do I get the map back out and flat to use is correctly in grasshopper?
anyone as any ideas?
Please!!!
THANKS!
HAVE A GREAT DAY!
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