algorithmic modeling for Rhino

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Event: Cursos de diseño generativo con Grasshopper: diseño paramétrico con Grasshopper: días 16, 17 y 18 de noviembre. Curso de iniciación a Grasshopper. Para seguirlo no se requieren conocimientos previos específicos. El objetivo de este curso es tomar contacto con Grasshopper, entender cómo funciona y empezar a fabricar y editar geometría con él. Más información y programa detallado del curso. - MÓDULO II: curso de diseño discriminativo con Grasshopper y análisis ambiental con Ecotect: días 23, 24 y 25 de noviembre. Se tratarán componentes avanzados de geometría y gestión de datos, así como soluciones evolutivas de optimización del diseño con Galapagos, y conexión con Ecotect. Más información y programa detallado del curso. - MÓDULO III: curso de diseño iterativo: scripting con Grasshopper en C#: días 30 de noviembre, 1 y 2 de diciembre. Curso de "scripting" con Grasshopper y Processing, donde se tratará de modelado recursivo con C# y RhinoCommon en Grasshopper. Formadores Los cursos están conducidos por Authorized Rhino Trainers: puedes comprobar nuestros tres años de experiencia, más de 30 cursos de Grasshopper y 300 alumnos en nuestra página web. Material El material de los cursos ha sido elaborado íntegra y exclusivamente por nosotros para estos cursos: - Manual de ejercicios de Grasshopper nivel I - Manual de ejercicios de Grasshopper nivel II - Manual de ejercicios de scripting en Grasshopper con C# Formato Cursos intensivos con duración de 18 horas con el siguiente horario: - Viernes: 17-21h - Sábado:10-14h, 16-20h - Domingo: 11-14 h, 16-19h Grupos El número de asistentes está limitado a un máximo de 10 personas para garantizar la calidad de la enseñanza y a un mínimo de 4 personas.…; Added by Miguel Vidal at 8:40am on August 30, 2012

Comment on: Topic 'Rule-based design, can grasshopper do it?': I live on my computer and I even sleep with it, so learning all this is probably within my reach but I'm a complete beginner as of now. I'm downloading the 32 bit version of rhino 5 since the 64 bit doesn't seem to work with your downloads Jon. I haven't grasped everything you have made yet Jon I can't even begin to understand what your IFC stuff is actually capable of, but just to be clear I'm not interested in solely being able to tell that something is colliding as there are already software that can do that beautifully. What I want to do is bypass that step altogether by never having collision-checking back and forth go on, even collisions which aren't physical collisions, but rather just violations by code. The simplest way to do this would be to simply make the geometry of the beams 2 feet wider than they are in real life, so that way you could put a light right next to the 'over-sized' beam and it would still be within the rules. But that would be extremely primitive and I'm sure there's a way to do it mathematically. Just to clarify, I'm the fire sprinkler designer in the architectural circus. The sprinkler designer (me) doesn't really get the luxury of telling the other trades that they're colliding with my stuff and they should move. Rather, I get their drawings, find out I'm colliding with them, and move around them. So it would be of great use to me to have this be automatic - that is, to automatically space my sprinklers the neccesary distance away from all obstructions. There are different spacing rules for different obstructions - walls, beams, open web steel, unit heaters, hvac ducts depending on how wide the ducts are, lights, fans, high rack storage, basically anything that would obstruct the water spray from a sprinkler needs to be taken into account and spaced away from. It's therefore a very attractive idea to be able to just draw a rectangle (representing the walls of a simple room) for instance, have the sprinklers automatically spaced as far apart as possible within the rectangle according to the rulebooks (to minimize the amount of sprinklers needed which minimizes the material cost of the job). Then add obstructions inside the rectangle, such as a beam, and have the sprinklers relocate themselves or add new sprinklers to accommodate for the new obstruction.. Keep adding obstructions until you have the realistic 3d model of the room, with the sprinklers spaced accordingly, and you have an up-to-code sprinkler system. There is one example where sprinklers actually need to be spaced really close to, rather than away from, an object.. and that is the ceiling (sprinklers must be within 12 in of ceiling typically). If the HVAC guy decides to reroute his ducts right through my sprinklers, then I could draw 3D HVAC ducts (I usually get 2D drawings coming in) going right through the room and the sprinklers would relocate and auto-space away from the ducts, without actually having to tell the HVAC guy he is colliding with me because all that will do is require me to do a redesign anyway. And presto, the HVAC guy loves me because I didn't complain to him at all and seemingly did all this work by moving around him when all I really did was use the computer to do it, the job gets done much faster and I don't have to worry that I'm going to lose my job in court because I made a silly human error when I was patching my system manually because some HVAC guy made me redesign 12 times in different places. From what I have been reading from you guys, doing this is possible although (I realize) ambitious. The end result would be vastly increased productivity, less error making, cheaper design cost, etc. Using programs like Rhino, architects are getting more and more funny-shaped buildings and making it difficult for guys like me to make sprinkler systems within the rules, and I see it as an inevitability that computers will be making almost all of the typical design decisions in the future when it comes to life safety systems, I'm just trying to see if it's possible to start implementing this extra aid today. …; Added by Luke W at 4:26am on May 19, 2012

Comment on: Topic 'Wind boundary profile - questions and wishlist': e represents wind flow more accurately in lower heights. The general formula for the log wind profile is: U(z) = (u*/k)[ln((z-d)/zo)] + psi(z, zo, L) (1) where U(z) is the mean horizontal wind speed at heigh z, u* is the friction velocity (velocity scale representative of velocities close to a solid boundary), k is the von karman constant (empirically set at 0.41 for rough and smooth surfaces), d is the displacement height, zo is the specific surface roughness, and psi is a stability term. Most cases assume neutral stability in the atmosphere to eliminate the psi term (i.e. z/L = 0) If not there are much more complex calculations required between temperature and wind speeds, essentially requiring numerical simulations to calculate the profile. With eliminating the psi term, it is easy to calculate the wind speed at any height z, provided we know the wind speed at reference heigh z1, like so: U(z)/U(z1) = ln((z-d)-zo)/ln((z1-d)-zo1) -> U(z) = .... (2) where z is the height we are interested in, zo is the roughness height in our case area, z1 is the reference height and zo1 is the reference roughness of the measurements. These are the measurements in the EPW file. The added information so far compared to the power law is that we also need the roughness level of the EPW data (usually near airports where roughness is very low, like 0.0002). Another simpler way is to calculate the friction velocity first by: u*=kU(z)/ln(z/zo), (3) assuming d=0 and z is the reference height of the measurements. Then we can use this to calculate the wind profile. While d=0 is an assumption I can understand, I do not really agree with accounting for a similar roughness level between the area of measurements and the case area. This is highliy problem and context specific. Especially in urban environments in my opinion it is almost always wrong. The displacement height (d) is usually calculated as 2/3 of the average height in the area of interest (sometimes "average" has a qualitative connotation as "characteristic"). Accounting for displacement height does introduce a problem though, the wind profile below d meters is undetermined, since ln(x) is undefined for x<0. In order to solve there is a two-step approach which forms these two equations: U(z) = (u*/k) x ln(z/zo1) for z < a*d and U(z) = (u*/k) x ln((z-d)/zo), for z > a*d Literature mentions that the choice of zo1 and a (i.e. the boundary of the 2 profiles) is quite arbitrary and not very influential in the results. Usually, zo1 is much lower than zo since lower roughness is expected on a higher height, especially in urban zones. The way I understand it, I think even implementing the simple formula (1) and then using (2) to calculate the profile is enough. For the inclusion of the displacement zone I imagine additional inputs would be required from the users and it would be their responsibility to conduct some sort of sensitivity analysis on the results. Equation (3) would be ok if no data on roughness level of the EPW measurement is available. Anyways, that's my 0.02c. Bear with me and the mistakes herein, this isn't my specialty by a long shot and I'm just delving into all of this. Some references: Wikipedia ofc. sts.bwk.tue.nl/drivingrain ( a nice page with a lot of additional references. The two-method was mentioned here). wind-data.ch/tools/profile.php? (a nice online tool that calculates log-wind profiles) and gives the most commonly reproduced values (in the literature) for zo. Wilcox, Turbulence Modeling for CFD (this is more related to CFD but it gives some background on the physics of the log-law) Argain et al. 2008, Estimation of the Friction Velocity in Stably Stratified Boundary Layer Flows Over Hills (an example of the complicated calculations when not assuming a neutral stability in the atmosphere) American Society of Civil Engineers (1999), Wind Tunnel Studies of Building and Structures (as always very good reference, provides the standard categories for zo values)…; Added by Theodoros Galanos to Ladybug Tools at 12:27am on March 16, 2015

Page: gHowl Videos: Diploma project from knagata on Vimeo. Kinect hack on GRASSHOPPER 01 from knagata on Vimeo. Kinect & Grasshopper from Elise Elsacker on Vimeo. gHowl + Processing + Lazycutter Test from Atel; Added by Luis Fraguada to gHowl at 4:13am on June 22, 2011

Topic: Butterfly Error - Cannot satisfy memory request: R_HOST=tcp://192.168.99.100:2376&SET DOCKER_CERT_PATH=C:\Users\akiwya\.docker\machine\machines\default&SET DOCKER_MACHINE_NAME=default&docker exec -i 4c9bb2f7444b pgrep snappyHexMesh SET DOCKER_TLS_VERIFY=1&SET DOCKER_HOST=tcp://192.168.99.100:2376&SET DOCKER_CERT_PATH=C:\Users\akiwya\.docker\machine\machines\default&SET DOCKER_MACHINE_NAME=default&docker exec -i 4c9bb2f7444b pgrep snappyHexMesh SET DOCKER_TLS_VERIFY=1&SET DOCKER_HOST=tcp://192.168.99.100:2376&SET DOCKER_CERT_PATH=C:\Users\akiwya\.docker\machine\machines\default&SET DOCKER_MACHINE_NAME=default&docker exec -i 4c9bb2f7444b pgrep snappyHexMesh SET DOCKER_TLS_VERIFY=1&SET DOCKER_HOST=tcp://192.168.99.100:2376&SET DOCKER_CERT_PATH=C:\Users\akiwya\.docker\machine\machines\default&SET DOCKER_MACHINE_NAME=default&docker exec -i 4c9bb2f7444b pgrep snappyHexMesh SET DOCKER_TLS_VERIFY=1&SET DOCKER_HOST=tcp://192.168.99.100:2376&SET DOCKER_CERT_PATH=C:\Users\akiwya\.docker\machine\machines\default&SET DOCKER_MACHINE_NAME=default&docker exec -i 4c9bb2f7444b pgrep snappyHexMesh SET DOCKER_TLS_VERIFY=1&SET DOCKER_HOST=tcp://192.168.99.100:2376&SET DOCKER_CERT_PATH=C:\Users\akiwya\.docker\machine\machines\default&SET DOCKER_MACHINE_NAME=default&docker exec -i 4c9bb2f7444b pgrep snappyHexMesh Butterfly is running blockMesh. PID: 1837 SET DOCKER_TLS_VERIFY=1&SET DOCKER_HOST=tcp://192.168.99.100:2376&SET DOCKER_CERT_PATH=C:\Users\akiwya\.docker\machine\machines\default&SET DOCKER_MACHINE_NAME=default&docker exec -i 4c9bb2f7444b pgrep snappyHexMesh /*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: v1612+ | | \\ / A nd | Web: www.OpenFOAM.com | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ Build : v1612+ Exec : blockMesh Date : May 22 2017 Time : 08:51:50 Host : "default" PID : 1837 Case : /home/ofuser/workingDir/butterfly/outdoor_airflow nProcs : 1 sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE). fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10) allowSystemOperations : Allowing user-supplied system call operations // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Creating block mesh from "/home/ofuser/workingDir/butterfly/outdoor_airflow/system/blockMeshDict" Creating block edges No non-planar block faces defined Creating topology blocks Creating topology patches Creating block mesh topology Check topology Basic statistics Number of internal faces : 0 Number of boundary faces : 6 Number of defined boundary faces : 6 Number of undefined boundary faces : 0 Checking patch -> block consistency Creating block offsets Creating merge list . Creating polyMesh from blockMesh Creating patches Creating cells new cannot satisfy memory request. This does not necessarily mean you have run out of virtual memory. It could be due to a stack violation caused by e.g. bad use of pointers or an out of date shared library Runtime error (PythonException): Butterfly failed to run OpenFOAM command! new cannot satisfy memory request. This does not necessarily mean you have run out of virtual memory. It could be due to a stack violation caused by e.g. bad use of pointers or an out of date shared library Traceback: line 51, in script I don't really have any knowledge in CFD simulation and only watched the tutorials and managed to get the sample files to work. So this time, I replaced the starting geometry my building which is a curve building, I wonder if that is the issue that caused this problem. Can anyone enlighten me on the issue? Warm regards, Annie…; Added by Annie Wu to Ladybug Tools at 3:14am on May 22, 2017

Topic: SnappyHexMesh crashed when meshing 9 buildings: ,with OpenfoamV1612+ in Windows 10 64bit.The blockmesh worked good.And the snappyhexmesh crashed in the process.My computer memory is not enough? Or some settings wrong?Could you help me solve this question?/---------------------------------------------------------------------------| ========= | || \ / F ield | OpenFOAM: The Open Source CFD Toolbox || \ / O peration | Version: v1612+ || \ / A nd | Web: www.OpenFOAM.com || \/ M anipulation | |*---------------------------------------------------------------------------*/Build : v1612+Exec : snappyHexMeshDate : Aug 27 2017Time : 09:39:54Host : "default"PID : 13443Case : /home/ofuser/workingDir/butterfly/outdoor_airflownProcs : 1sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)allowSystemOperations : Allowing user-supplied system call operations // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //Create time Create mesh for time = 0 Read mesh in = 2.14 s Overall mesh bounding box : (-241.5472 -241.4418 0) (496.4376 536.2438 144.8633)Relative tolerance : 1e-06Absolute matching distance : 0.001081851 Reading refinement surfaces.Read refinement surfaces in = 0.01 s Reading refinement shells.Refinement level 3 for all cells inside around_buildings_area.stlRead refinement shells in = 0 s Setting refinement level of surface to be consistent with shells.For geometry outdoor_airflow.stl detected 0 uncached triangles out of 120Checked shell refinement in = 0 s Reading features.Read features in = 0 s Determining initial surface intersections Edge intersection testing:Number of edges : 1684728Number of edges to retest : 1684728Number of intersected edges : 5583Calculated surface intersections in = 1.68 s Initial mesh : cells:554112 faces:1684728 points:576779Cells per refinement level:0 554112 Adding patches for surface regions Patch Type Region outdoor_airflow: 6 wall buildings Added patches in = 0.03 s Edge intersection testing:Number of edges : 1684728Number of edges to retest : 0Number of intersected edges : 5583Selecting decompositionMethod none Refinement phase Found point (127.4452 147.401 72.43167) in cell 402042 on processor 0 Surface refinement iteration 0 Marked for refinement due to surface intersection : 8820 cells.Determined cells to refine in = 3.87 sSelected for refinement : 8820 cells (out of 554112)Edge intersection testing:Number of edges : 1883850Number of edges to retest : 250376Number of intersected edges : 21198Refined mesh in = 1.77 sAfter refinement surface refinement iteration 0 : cells:615852 faces:1883850 points:652499Cells per refinement level:0 5452921 70560 Surface refinement iteration 1 Marked for refinement due to surface intersection : 38502 cells.Determined cells to refine in = 0.04 sSelected for refinement : 40392 cells (out of 615852)Edge intersection testing:Number of edges : 2787132Number of edges to retest : 1118049Number of intersected edges : 85655Refined mesh in = 3.17 sAfter refinement surface refinement iteration 1 : cells:898596 faces:2787132 points:990317Cells per refinement level:0 5432351 486812 306680 Surface refinement iteration 2 Marked for refinement due to surface intersection : 159213 cells.Determined cells to refine in = 0.1 sSelected for refinement : 168471 cells (out of 898596)Edge intersection testing:Number of edges : 6576117Number of edges to retest : 4737635Rhino Model and GH files is in t'he zip file.Please help me solve this question!~~…; Added by Minggang Yin to Ladybug Tools at 7:29pm on August 29, 2017

Blog Post: rese arch GRASSHOPPER® Sessions: Added by Jan Pernecky at 9:03am on November 27, 2014

Blog Post: 40% of Smart Geometry 2013 Cluster Champions have a Profile on Grasshopper3d.com: I was going to post that there are several Cluster Champions for the …; Added by Luis Fraguada at 11:14am on January 8, 2013

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Topic: NBBJ releases Human UI -- now available for download: . Today we have gone live, and the plugin is available on Food4Rhino. You will find an installer package, sample files, and a demo video on getting started: http://www.food4rhino.com/project/human-ui Visit the Bitbucket Repo and poke around in the code: https://bitbucket.org/andheum/humanui Check out today's coverage in Architect Magazine: http://www.architectmagazine.com/technology/nbbj-releases-human-ui-to-bring-parametric-modeling-to-the-masses_o Finally join our group and ask any questions or post any comments here: http://www.grasshopper3d.com/group/human-ui See below for detailed description! ---------------------------------- Human UI Primary Development by: Lead Developer: Andrew Heumann / andheum / @andrewheumann Product Manager: Marc Syp / marcsyp / @mpsyp Contributing Developer: Nate Holland / nateholland / @_NateHolland Gone are the days of faking a user interface by laying out sliders and text panels and hiding wires on the Grasshopper canvas. Human UI interfaces are entirely separate from the Grasshopper canvas and leverage the power of Windows Presentation Foundation (WPF), a graphical subsystem for rendering user interfaces in the Windows environment. OLD NEW In other words: Human UI makes your GH definition feel like a Windows app. Create tabbed views, dynamic sliders, pulldown menus, checkboxes, and even 3D viewports and web browsers that look great and make sense to anyone--including designers and clients with no understanding of Grasshopper. Human UI has been in development at NBBJ for over a year, as part of a larger NBBJ Design Computation initiative to deliver our tools internally as Products -- with fully automated installation, managed dependencies, analytics, documentation, and “magical” user experience. Human UI has been a huge component of the user experience part of this puzzle, and we are excited to share it with the larger Grasshopper community so that others can benefit from it and contribute to its development. The initial release of Human UI is accompanied by a few simple examples to get you started, but we have developed sophisticated user interfaces with these tools at NBBJ and will slowly be rolling out more advanced examples. We also look forward to opening up the development to the community and seeing what new features and paradigms we can add. Download the plugin at Food4Rhino and get started building Custom UIs for Grasshopper right away! We are happy to answer any questions or field discussion in the dedicated Grasshopper Group. Please join us! Join the Grasshopper Group http://www.grasshopper3d.com/group/human-ui Download the plugin + sample files http://www.food4rhino.com/project/human-ui Visit the Bitbucket Repo https://bitbucket.org/andheum/humanui We look forward to seeing where this project takes you, please share your projects made with Human UI! Sincerely, Design Computation Leadership Team, NBBJ …; Added by NBBJ Architects at 11:18am on February 2, 2016