case for sure (started by Giorgio a couple of days before). Ive got involved because I exploit ways to "relax" shapes on nurbs (say patterns created by Lunchbox or "manually) without using any kind of mesh (more explanations soon).
Here's 5 test cases (SDK appears that doesn't have some "thicken surface" thing ... thus the algo that finds the "whole" shapes is rather naive) VS 2 Kangaroo "methods" and the why bother (he he) option as well.
If the goal is to "fit" these shapes within the nurbs ... does it work so far? No I'm afraid (appears that "springs" used are not the proper ones - or [Kangaroo1 option] the lines that pull should been originated from valance 2 points only)
Tricky points:
1. Internalize appears having a variety of serious issues (see Input inside definition) - Load Rhino file first (but even so ...).
2. Pull to surface is deactivated - this is not the issue here (and it's very slow).
3. Since Starling/WB alter the "curves - points" related order
the issue here (Pull points to curves) is to correspond apples to apples:
and that's what Anemone does:
From chaos :
to order:
this means that prior activating Kangaroo you should double click to the Anemone start component in order to "sort" properly the curves.
But .. fact is that results are pathetic:
more soon
best, Peter…
giornata inaugurale sarà dedicata alla free-lecture introduttiva finalizzata alla realizzazione di un modello d'architettura complesso attraverso l'utilizzo di comandi e tecniche avanzate di rappresentazione con Grasshopper (plug-in parametrica di Rhinoceros) e 3dsMax. Sarà illustrato inoltre il potenziale di V-ray per 3dsMax realizzando un rendering concettuale. Durante il mini-corso dell' openDAY verranno mostrate le caratteristiche e le potenzialità degli strumenti per far luce sui nuovi valori assunti dalla modellazione 3D. La modellazione 3D sta interessando un pubblico sempre più vasto inserendosi in una nuova fase di ampia disponibilità per conoscenze, software, hardware di prototipazione e modelli. Pur mantenendo tutti i suoi valori già noti la questione si è talmente ampliata fino ad interessare norme giuridiche (diritti sui modelli ,concorrenza con offerte di servizi apparentemente simili, informazioni deformate e onfusione nei media) Makers University[http://www.makersuniversity.com], in collaborazione con parametricart, vi propone un punto di vista ampio e sintetico su queste tematiche.
Al termine della free-lecture, sarà illustrata l'offerta formativa [CLICCA QUI] di parametricart riferita ai corsi che si terranno nei mesi di Gennaio e Febbraio 2013 inseriti all'interno della più ampia programmazione della Makers University. SONO PREVISTE TARIFFE PROMOZIONALI PER COLORO CHE SI ISCRIVERANNO AI CORSI durante l'OpenDAY.
La lezione e la presentazione si terranno nel nuovo spazio co-working il PEDONE.
PROGRAMMAZIONE
- I temi della Makers University [Leo Sorge];
- Modellazione della parametricTower (concept di architettura complessa) utilizzando Grasshopper, applicativo per la modellazione parametrica [VIDEO] [Michele Calvano];
- Modellazione di una copertura reticolare 3D a completamento della parametricTower con 3dsMax utilizzando tecniche di modellazione mesh complesse [Wissam Wahbeh];
- Rendering con V-ray per 3dsMax illustrando la nuova interfaccia nodale [Wissam Wahbeh].
- Question Time per chiarimenti sugli argomenti illustrati.
COME
L'openDAY sarà aperto a tutti gli interessati,completamente gratuito e sarà replicato in tre sessioni di uguali contenuti organizzate nei seguenti orari:
Sessione [1] 11,30 - 13,30
Sessione [2] 15,30 - 17,30
Sessione [3] 17,30 - 19,30
Per necessità di organizzazione è importante la prenotazione all'evento utilizzando il form in fondo alla pagina specificando nella stringa apposita, il nome dell'evento e la sessione (es. open day sessione 1) oltre agli altri dati richiesti.…
option, after downloading check if .ghuser files are blocked (right click -> "Properties" and select "Unblock"). Then paste them in File->Special Folders->User Object Folder. You can download the example files from here. They act in similar way, Ladybug Photovoltaics components do: we pick a surface, and get an answer to a question: "How much thermal energy, for a certain number of persons can my roof, building facade... generate if I would populate them with Solar Water Heating collectors"? This information can then be used to cover domestic hot water, space heating or space cooling loads:
Components enable setting specific details of the system, or using simplified ones. They cover analysis of domestic hot water load, final performance of the SWH system, its embodied energy, energy value, consumption, emissions... And finding optimal system and storage size. By Dr. Chengchu Yan and Djordje Spasic, with invaluable support of Dr. Willian Beckman, Dr. Jason M. Keith, Jeff Maguire, Nicolas DiOrio, Niraj Palsule, Sargon George Ishaya and Craig Christensen. Hope you will enjoy using the components! References: 1) Calculation of delivered energy: Solar Engineering of Thermal Processes, John Wiley and Sons, J. Duffie, W. Beckman, 4th ed., 2013. Technical Manual for the SAM Solar Water Heating Model, NREL, N. DiOrio, C. Christensen, J. Burch, A. Dobos, 2014. A simplified method for optimal design of solar water heating systems based on life-cycle energy analysis, Renewable Energy journal, Yan, Wang, Ma, Shi, Vol 74, Feb 2015
2) Domestic hot water load: Modeling patterns of hot water use in households, Ernest Orlando Lawrence Berkeley National Laboratory; Lutz, Liu, McMahon, Dunham, Shown, McGrue; Nov 1996. ASHRAE 2003 Applications Handbook (SI), Chapter 49, Service water heating
3) Mains water temperature Residential alternative calculation method reference manual, California energy commission, June 2013. Development of an Energy Savings Benchmark for All Residential End-Uses, NREL, August 2004. Solar water heating project analysis chapter, Minister of Natural Resources Canada, 2004.
4) Pipe diameters and pump power: Planning & Installing Solar Thermal Systems, Earthscan, 2nd edition
5) Sun postion and POA irradiance, the same as for Ladybug Photovoltaics (Michalsky (1988), diffuse irradiance by Perez (1990), ground reflected irradiance by Liu, Jordan (1963))
6) Optimal system and storage tank size: A simplified method for optimal design of solar water heating systems based on life-cycle energy analysis, Renewable Energy journal, Yan, Wang, Ma, Shi, Vol 74, Feb 2015.…
h tubes are redundant so surfaces overlap instead of interpenetrate, so it is not a good system.
Cocoon is the best answer these days unless you can get Exowire/Exoskelton to work. If you want more control over shape, feed your uncapped tubes into Cocoon as meta-surfaces and delete any and all of the inner meshes to just keep the outer single closed one, but this is just duplicate-culled lines used as meta-lines:
Turn down the CS input to 0.005 for this result, from 0.02 used for faster preview. In fact bake the lines and only test Cocoon on a few of them in order to get the result you want before doing the whole thing.
Whole thing at 0.005 cell size takes 5 minutes for Cocoon and 2 minutes for refinement to a smooth and even mesh.
Actually, seems like 0.005 is way too fine, giving a 600MB STL file.
So, 0.01 cell size at less than a minute total:
159MB STL which is still a bit too big for places like Shapeways. Wow. OK then 0.02 cell size, but I have to increase diameter or my two smoothing steps in refine collapse things too much, an in fact I set it to no smoothing, getting more volume and a reasonable 46MB STL file:
Alas, now it's more frail and overly organic rather than mechanical. Increasing diameter just merges it into perforated plates too much. File size is simply an issue with this complexity level, so different 3D printing services will have different file size limits.
Exowire/Exoskeleton would work but your original mesh hasn't been MeshMachine remeshed to be regular, so short segments ruin it. Here is just a corner:
I think that's why more wires fails, at least. Pretty temperamental component.
Switching to MeshMachine is needed, I guess, instead of Cocoon refine, to remesh away so many small triangles along the boring tubes. Crucial for good remeshing was to set Flip to 0 or I failed to get a rough enough mesh.
It's an adaptive mesh so I can retain good detail while roughing out the tubes.
MeshMachine is terribly slow for this whole thing, like 6 minutes, and blows up for this overly rough setting, 20 steps, so less rough, ugh, I'm out of time. I think free Autocad Meshmixer is the way to make a better smaller mesh, after a refined output from Cocoon. MeshMachine is just too slow to tweak and when it blows up, creating massive triangles jutting out, it hangs too when you change settings.
Starting with a Cocoon refined mesh certainly helped Meshmixer. Using triangle budget lets me have full control. Here is 150K triangles instead of 200K:
STL file size down to 40MB. I think Shapeways is 70 or 100MB limit? So it can be even finer. Here is the Cocoon output versus the Meshmixer reduction:
To use Meshmixer, turn on View > Show Wireframe, Command-S to select all and use Edit > Reduce from the palette that appears.
Cocoon can end up making a few inner meshes where things get weird in your uneven original mesh with small holes so fish out the main mesh by adding a List Item node.
The best strategy for Cocoon is indeed to make an overly fine STL so you avoid any need to tweak forever in Grasshopper, but then you can achieve a smaller mesh file size while preserving shape instead of things turning all smearly organic in Grasshopper.…
l coarse mesh
Subdividing this mesh into strips of thin quads
Relaxing/Planarizing this mesh
Splitting and Unrolling
In this post I deal with the first 2 of these stages.
You can download the example definition here:
developable_strips_tutorial.gh
Drawing the initial mesh
To begin with we need a simple quad mesh. This can be modelled manually in Rhino, and only needs to use enough quads to give the topology and very rough form. No need to worry too much about the exact geometry or dimensions at this point, as we will refine and alter it as we go.
One very important thing that we do need to bear in mind though is that all internal vertices must have even valence (I covered this a bit in the earlier post here).
So for example, this is bad:
(because the highlighted vertex is surrounded by 5 faces)
While this is good (and can still be relaxed to the same shape):
(the top and bottom vertices have valence 8, and the vertices between the arms have valence 4)
With a little practice it should be possible to convert any mesh into one that meets this condition.
The reasons why we need this condition should become more clear in the later steps.
First subdivision
This is where we choose how many strips we want our final model to have, by applying a few rounds of subdivision using the Refine component (you could also use Weaverbird here):
Sorting the face directions
While quad meshes do not carry the same information about u/v directions as a NURBS surface, the individual faces do have a sort of direction given by their vertex ordering. However, these face directions are usually not consistently arranged, especially after subdivision.
The Kangaroo MeshDirection component attempts* to orient all the faces in a mesh so that they match with their neighbours.
For example, before sorting, if we draw a line from the midpoint of the first edge of each face to the midpt of its opposite edge, we might get something like this:
Whereas after sorting, we should get something like this:
*note that I say it attempts to orient the faces consistently. In some cases no valid solution exists, for instance if 3 or 5 faces meet around a vertex, hence the requirement mentioned at the start for even valence vertices.
Directional Subdivision
Now that we have consistent face directions across the mesh, we can apply further subdivision, but this time in one direction only. So we go from roughly square quads to thin rectangles. The idea is that as we apply higher levels of this directional subdivision, the final relaxed result goes towards something semi-discrete. A NURBS surface is fully continuous, and a mesh is fully discrete (made up of separate facets), while this strip model will be smooth in one direction and faceted in the other.
Go to part 2 for the next step of the process
…
ooking for an efficient way to perform glazing of complex shapes.
I've only followed the Energy modelling workshops so far so i may have missed some essential components or workflows to achieve my needs. But i've made an attached definition with all my current attempts to get a proper HBzone with the numerous windows faces i will always have to deal with in this project.
I first thought that i was not using the HBObjWGZ correctly, then after some readings it was maybe an upgrading issue, then effectively i had my Therm 7.5 that needed to be reinstaled, but then ... I must be missing an essential HB tricks or workflow i guess ...
So I divided my attempt in two series :
- The Serie 1 : is a simplier version of the project step i'm working on but i'd be glad to achieve it first !
- The Serie 2 : is the real final direction of the project, which consist in sorting/dispatch faces to windowon one side and to an other material on the other, according to the winter sun and a pourcentage param.
Despite it is more complicated than the Serie one, it seems seems to create the same diversity of issues.
Until now, with the 5 different combinations of Serie 1, and the 3 of Serie 2, with and without using the different Glazing/window components, here are the logs i got from both HBZone component or OpenStudio component:
From OpenStudio - "1. The simulation has not run correctly because of this severe error: ** Severe ** BuildingSurface:Detailed="00073E23257843B6A948", invalid Construction Name="ETFE" - has Window materials.">> Has to deal with the way i'm trying to assign too early a customized EPConstruction material ? Done it wrong ? I tried to reload it in the library but doesn't change anything...
From OpenStudio - "1. The simulation has not run correctly because of this severe error: ** Severe ** BuildingSurface:Detailed="000579CD749E46DFA5EA", invalid Construction Name="EXTERIOR WINDOW" - has Window materials.">> Is it an issue in the way i define my surfs both as "WINDOW" (5) for srfType and Outdoors on the same component ?
From Create HBZone -"1. Solution exception:'EPZone' object has no attribute 'shdCntrlZoneInstructs'"
>> Happens when i try to introduce my ETFE EpMaterial after creating my first HBZone, with a Set EP Zone Construction, so this material seems to be not working either before and after trying to create an HB Zone
From Create HBZone- "1. Solution exception: 73df51a3b2144b1e858b has been moved, scaled or rotated."If you need to move or rotate a Honeybee object you should use Honeybee move, rotate or mirror components. You can find them under 12|WIP tab.
>> >> wich seems to exist in some on other thread Here and was a coding bug supposed to be fixed.
And last but not least ...
From OpenStudio - "1. The simulation has not run correctly because of this severe error: ** Severe ** checkSubSurfAzTiltNorm: Outward facing angle of subsurface differs more than 90.0 degrees from base surface.2. The simulation has failed because of this fatal error: ** Fatal ** GetSurfaceData: Errors discovered, program terminates" .
I'm attaching the file with each attempt in this post. The definitions are disabled and the log already copied separatly so there is no need to compute each of them to see what's wrong.
If someone from the beginner to one of the Kings of HoneyBee has any relevant answer/solution to this attempt with complex geometry Issue it will be really nice for me so i could to move forward !!
Thanks in advance guys and have a great day !
…
y from the Rhino model and having the absorption coefficients of the materials that are entered into Pachyderm, why is it not possible to generate a reverberation time diagram, without the need to start any analysis?
MAPPING METHOD: When for example the mapping of the Strenght Index (G) is generated through the "create map" option, succesively I can´t generate any other energy criterion map, but I have to redo the simulation.
Is it a limitation of the software or am I wrong something?
MAPPING METHOD: I kindly wanted to ask what is the difference between minimum and detailed convergence and why the number of reflections order it takes into account for the simulation is not specified. The mapping method take care only of the Raytracing Method or the Image Source too?
MAPPING METHOD: Why is the mapping value that can be exported to Rhino not generated for all the calculation raster points, but maximal only for 100 values?
MAPPING METHOD: This method hasn't been implemented in Grasshopper yet, has it?
RAYTRACING METHOD (Pach:RT): I did a raytracing through the components of GH, using only the Pach_RT, and I had these curious results in terms of time:
RaysCount: 15.000, IS_Order:1 = 5min
RaysCount: 15.000, IS_Order:2 = 12min
RaysCount: 15.000, IS_Order:3 = 3min
RaysCount: 15.000, IS_Order:4 = 8min
RaysCount: 15.000, IS_Order:5 = 3min
Why a raytracing with only 2 order, is more and more extensive than the 3/4 and 5 order?
ANALYSIS RESULT: Would there be a way to export all the results of a simulation, as is done via Odeon, to a .txt list?
I apologize in advance for asking so many questions, I hope you can find the time to answer,
Yours sincerely from Müller-BBM…
RESENTERS PETER ARBOUR seele KEITH BOSWELL Skidmore Owings & Merrill MARK E. DANNETTEL Thornton Thomasetti LISA IWAMOTO IwamotoScott JASON KELLY JOHNSONFuture Cities Lab/California College of the Arts HAO KO Gensler BILL KREYSLER Kreysler & Associates ANDREW KUDLESS Matsys/California College of the Arts CHRIS LASCH Aranda\Lasch ARNOLD LEE HOK MIC PATTERSON Enclos, Corp. M. MIN RA Front GEOFF ROSSI Element DENNIS SHELDEN Gehry Technologies ANN SMITH Cambridge Architectural MARCELLO SPINAP-A-T-T-E-R-N-S SANJEEV TANKHA Buro Happold BEN TRANEL Gensler PHIL WILLIAMS Webcor Builders & Consulting Group
DIGITAL FABRICATION WORKSHOPS
8 LU/HSW or 8 LU credits (depending upon workshop choice)
Friday, July 27th 2012 9:00 AM – 6:00 PMCalifornia College of the Arts San Francisco, California
PARAMETRIC ENVELOPES WITH GRASSHOPPERANDREW KUDLESS Matsys Design/California College of the Arts
COMPOSITE FACADES IN ARCHITECTUREBILL KREYSLER & JOSHUA ZABEL Kreysler & Associates
RESPONSIVE BUILDING FACADESJASON KELLY JOHNSON Future Cities Lab/California College of the Arts
SCRIPTED FACADESCHRIS LASCH Aranda/Lasch
PARAMETRIC FACADE TECTONICSKEVIN MCCLELLAN & ANDREW VRANA Digital Fabrication Alliance
BIM MODELING WITH REVIT/INTRO TO VASARIGERMAN APARICIO California College of the Arts & Autodesk Fellow
Facade technologies are developing at a more dynamic rate than almost any other issue related to construction today with an impact on performance, sustainability, materials, fabrication, design, delivery and much more. What was once thought impossible is now an everyday reality, and the future promises accelerating change.
Presented by Enclos and The Architect’s Newspaper, COLLABORATION will bring together in a two-day event, the industry, the profession, and the academy to explore the evolution and the issues surrounding today’s high tech building envelope through case studies and lectures presented by foremost
practitioners, as well as panel discussions, and workshops conducted by leaders in the AEC profession.
Aimed at architects, building owners and developers, general contractors, engineers, fabricators, material suppliers, educators, and students, the event’s panels and sessions address the transformative opportunities created by new technologies and resources. From using BIM for communicating effectively with fabricators, to energy modeling, to retrofitting practices and the latest design tools, the COLLABORATION conference offers an unprecedented opportunity to survey the possibilities of designing in the digital age.
Who Should Attend
Architects, designers, engineers, building owners, developers, and facade consultants interested in gaining increased understanding of cutting-edge building envelope technologies.…
_b2 texfunc WoodGrain_tex
6 xgrain_dx ygrain_dx zgrain_dx woodtex.cal -s 0.01
0
1 0.075
WoodGrain_tex plastic WoodGrain_NonColor2
0
0
5 0.364 0.187 0.072 0.006 0.0
This creates the texture (on the table) below:
Is it possible for me to use a multi-modifier material like this in Honeybee ?
Thanks,
Sarith
(Update: I figured out a hack to do this in MSH2RAD but I still don't know if it is possible to add this to the Honeybee Library).…