The first is that XML requires that there be one root tag, where GH does not necessarily require their be one trunk to build its tree. In more GH specific terms, any XML document would always require that a path be {0;....} and there could never be a path like {1;...} or {13;....}. The fact that GH rarely does this is inconsequential, because its possible, so therefore has to be dealt with somehow. The first option is to simply have the component throw an error and not write the XML. That's fine, but in order to use the data you'd have to start remapping or splitting out your tree... not fun. The second option would be to wrap the data in a root tag so that the XML requirements are met, however this is manipulating the data that you're saving which I don't like. The third option, would be to write each root trunk out into separate files. The easiest option is 2, but I don't like modifying the data, although it would be possible to put attribute on that root tag to discard it if it was later read back into GH.
The second issue is that in order to write comprehensible XML, you'd need to specify the element names along with the values, which has the potential to be very cumbersome. In your case, you have all your tag names there and are just looking to modify the data that was in those tags, but this is definitely the best case scenario. If the ability is there to write xml, then that means it can come from anywhere in GH, not just from a previously parsed xml doc. Inevitably, assuming one would go through the hassle of creating names for all their xml elements, invariably there would be an path that would be missed, so what would you do as the name for that element? Throw an error? write out something else based on the path? Taking this to the extreme, would it be possible for someone just to supply data with no element names whatsoever?
In thinking about that last question, it would be nice if the GH path could be used for writing out the element names, but unfortunately both curly brackets and semicolons are invalid in element names (ie so <{0;1;0;5}>SomeData</{0;1;0;5}> is invalid because of the {,}, and ; characters. Element names also can't start with a number). So in order to write out an actual GH path, it would need to be transformed in some manner so that the previous example might look something like this <GhPath_0-1-0-5>SomeData</GhPath_0-1-0-5>
There are a bunch of other potential issues as well that would likely leave writing xml from GH in somewhat limited state. Some of those include enforcing/validating schema and supporting for other xml features(such as CData).
Ultimately, when I first wrote the xml parser I wasn't sure what people's needs were going to be in regards to using XML in GH. Based on the two main issues I outlined above, I chose to leave writing xml out for the time being. Its not that it can't be done (far from it actually), some decisions just have to be made pertaining to those issues. It does seam like it would be something useful, so I'll begin to look into adding it, and if you've got some other suggestions or preferences about which solution would be better, then sound off.
EDIT:
One thing I should note, all of my comments above pertain to saving xml. Once you've parsed an xml file, its no longer xml, its just regular data with GH which can be manipulated however you prefer. It would be entirely possible to to use GH's tree manipulation and list tools to move chunks of xml around, remap xml, etc.…
a nodi, permette di sfruttara le potenza della programmazione, senza necessariamente avere competenze avanzate.
Con Grasshopper potrete avere accesso ai segreti della modellazione generativa, un nuovo linguaggio progettuale che sta cambiando il mondo del design, a partire dalla gioielleria, fino ad arrivare all'architettura.
Durante il corso sarà possibile comprendere le caratteristiche di funzionamento del programma e applicarlo alla creazione di oggetti complessi che potranno essere stampati in 3D, oppure renderizzati. La durata è di 30 ore e alla fine del percorso verrà rilasciato il certificato McNeel.
Il Programma
Il corso spiega i concetti base di modellazione parametrica e generativa. Nello specifico:
Interfaccia e comandi
Parametri e componenti
Interopazione con Rhinoceros
Strumenti di parametrizzazione
Combinazione dati
Data tree
Creazioni di superfici attraverso algoritmi di paneling
Teoria degli attrattori
Gestione strumenti mesh
Creazione di Cluster
Durante il corso saranno proposte esercitazioni pratiche sul campo di utilizzo preferito dallo studente
Il docente
Antonino Marsala, è un formatore certificato McNeel con alle spalle oltre 11 anni di esperienza nel settore della modellazione 3D. Oltre ad occuparsi di formazione, collabora con aziende orafe e di architettura per la messa in pratica dei principi di modellazione generativa, applicandoli a casi reali.
FAQ
Quanto costa il corso?
Il prezzo del corso è di 500,00 € + IVA che potranno essere saldati in una soluzione unica. Nel caso di iscrizione di gruppo, potrà essere applicato uno sconto.
Cosa posso portare e cosa non devo portare all'evento?
Gli organizzatori forniranno computer con il software già installato. Nel caso vogliate portare il vostro computer, vi forniremo una versione trial da 90giorni di Rihnoceros e Grasshopper
Dove posso contattare l'organizzatore per qualsiasi domanda?
antonio@mandarinoblu.com
334 24 20 203
La mia registrazione o il mio biglietto è trasferibile?
Si, purchè venga comunicato il cambiamento entro 48 ore dalla partena del corso
…
es of the mesh faces as points. Is the component HingePoints reordering the points in any particular manner, i.e. point 1 and point 2 being the opposite corners of the quad faces?
1. Solution exception:Cannot marshal 'parameter #5': Invalid managed/unmanaged type combination (Arrays can only be marshaled as LPArray, ByValArray, or SafeArray).
I have attached the script and a couple of snapshots showing the red component inside the origami cluster.
Aside from this error, I had also noticed that the two last addition components which provide the RestAngle and Strength Values to the Kangaroo Physics component were loosing the '0' value entered as 'A' (they were getting Null instead). I have replaced the manual entry with a panel entry. However, I still cannot get the Kangaroo Physics component to run the simulation (or the forces might be somehow equal to the initial ones, and hence not getting the system to move in any way).
I am out of ideas as to why this might be happening. I had worked with Kangaroo before and really liked it. This origami component is really promising and I would really like to get it to work on my machine.
The grasshopper version I am using is: 0.9.064. Kangaroo is 00.096.
I would be very grateful if you could have a look into it and let me know your thoughts.
Thanks for your help!
Best
Maria
…
es which you can see below in my mesh repair report I ran on the mesh after baking it.
This is a bad mesh.
Here is what is wrong with this mesh: Mesh has 2 non manifold edges. <<------because of the duplicate face Mesh has 1 duplicate face. Skipping face direction check because of positive non manifold edge count.
General information about this mesh: Mesh does not have any degenerate faces. Mesh does not have any extremely short edges. Mesh does not have any naked edges. Mesh does not have any self intersecting faces. Mesh does not have any disjoint pieces. Mesh does not have any unused vertices.
Continuing the repair process does rid the duplicate face. I also realized that rhino 5 has the command called "ExtractDuplicateMeshFaces" which works quite nicely.
However, this "method" is not available in rhinocommon currently. So I just wonder who can I ask to add it? It seems it would make sense to be in rhinocommon considering we have methods available for each of the other tests run by mesh repair. The reason I am interested in this command is it seems to work very fast.
Thanks
…
Added by Michael Pryor at 12:53am on December 11, 2014
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.…
t. So here we go!
1. Honeybee is brown and not yellow [stupid!]...
As you probably remember Honeybee logo was initially yellow because of my ignorance about Honeybees. With the help of our Honeybee expert, Michalina, now the color is corrected. I promised her to update everyone about this. Below are photos of her working on the honeybee logo and the results of her study.
If you think I'm exaggerating by calling her a honeybee expert you better watch this video:
Thank you Michalina for the great work! :). I corrected the colors. No yellow anymore. The only yellow arrows represent sun rays and not the honeybee!
2. Yellow or brown, W[here]TH Honeybee is?
I know. It has been a long time after I posted the initial video and it is not fun at all to wait for a long time. Here is the good news. If you are following the Facebook page you probably now that the Daylighting components are almost ready.
Couple of friends from Grasshopper community and RADIANCE community has been helping me with testing/debugging the components. I still think/hope to release the daylighting components at some point in January before Ladybug gets one year old.
There have been multiple changes. I finally feel that the current version of Honeybee is simple enough for non-expert users to start running initial studies and flexible enough for advanced users to run advanced studies. I will post a video soon and walk you through different components.
I think I still need more time to modify the energy simulation components so they are not going to be part of the next release. Unfortunately, there are so many ways to set up and run a wrong energy simulation and I really don’t want to add one new GIGO app to the world of simulation. We already have enough of that. Moreover I’m still not quite happy with the workflow. Please bear with me for few more months and then we can all celebrate!
I recently tested the idea of connecting Grasshopper to OpenStudio by using OpenStudio API successfully. If nothing else, I really want to release the EnergyPlus components so I can concentrate on Grasshopper > OpenStudio development which I personally think is the best approach.
3. What about wind analysis?
I have been asked multiple times that if Ladybug will have a component for wind study. The short answer is YES! I have been working with EFRI-PULSE project during the last year to develop a free and open source web-based CFD simulation platform for outdoor analysis.
We had a very good progress so far and our rockstar Stefan recently presented the results of the work at the American Physical Society’s 66th annual DFD meeting and the results looks pretty convincing in comparison to measured data. Here is an image from the presentation. All the credits go to Stefan Gracik and EFRI-PULSE project.
The project will go live at some point next year and after that I will release the Butterfly which will let you prepare the model for the CFD simulation and send it to EFRI-PULSE project. I haven’t tried to run the simulations locally yet but I’m considering that as a further development. Here is how the component and the logo looks like right now.
4. Teaching resources
It has been almost 11 months from the first public release of Ladybug. I know that I didn't do a good job in providing enough tutorials/teaching materials and I know that I won’t be able to put something comprehensive together soon.
Fortunately, ladybug has been flying in multiple schools during the last year. Several design, engineering and consultant firms are using it and it has been thought in several workshops. As I checked with multiple of you, almost everyone told me that they will be happy to share their teaching materials; hence I started the teaching resources page. Please share your materials on the page. They can be in any format and any language. Thanks in advance!
I hope you enjoyed/are enjoying/will enjoy the longest night of the year. Happy Yalda!
Cheers,
-Mostapha
…
oftware connections built from the initial seed of the project. As always you can download the new release from Food4Rhino. Make sure to remove the older version of Ladybug and Honeybee and update your scripts.
This release is also special since today it is just about 3 years (3 years and 2 weeks) from the first release of Ladybug. As with any release, there have been a number of bug fixes and improvements but we also have some major news this time. In no specific order and to ensure that the biggest developments do not get lost in the extensive list of updates, here are the major ones:
Mostapha is re-writing Ladybug!
Ladybug for DynamoBIM is finally available.
Chris made bakeIt really useful by incorporating an export pathway to PDFs and vector-based programs.
Honeybee is now connected to THERM and the LBNL suite thanks to Chris Mackey.
Sarith has addressed a much-desired wish for Honeybee (Hi Theodore!) by adding components to model electric lighting with Radiance.
Djordje is on his way to making renewable energy deeply integrated with Ladybug by releasing components for modeling solar hot water.
There is new bug. Check the bottom of the post for Dragonfly!
Last but definitely not least (in case you’re not still convinced that this release is a major one) Miguel has started a new project that brings some of Ladybug’s features directly to Rhino. We mean Rhino Rhino - A Rhino plugin! Say hi to Icarus! #surprise
Before we forget! Ladybug and Honeybee now have official stickers. Yes! We know about T-Shirts and mugs and they will be next. For now, you can deck-out your laptops and powerhouse simulation machines with the symbology of our collaborative software ecosystem.
Now go grab a cup of tea/coffee and read the details below:
Rewriting Ladybug!
Perhaps the most far-reaching development of the last 4 months is an effort on the part of Mostapha to initiate a well structured, well documented, flexible, and extendable version of the Ladybug libraries. While such code is something that few community members will interact with directly, a well-documented library is critical for maintaining the project, adding new features, and for porting Ladybug to other software platforms.
The new Ladybug libraries are still under development across a number of new repositories and they separate a ladybug-core, which includes epw parsing and all non-geometric functions, from interface-specific geometry libraries. This allows us to easily extend Ladybug to other platforms with a different geometry library for each platform (ie. ladybug-grasshopper, ladybug-dynamo, ladybug-web, etc) all of which are developed on top of the ladybug-core.
Without getting too technical, here is an example of a useful outcome of this development. If you want to know the number of hours that relative humidity is more than 90% for a given epw, all that you have to code (in any python interface) is the following:
import ladybug as lb
_epwFile = r"C:\EnergyPlusV7-2-0\WeatherData\USA_CO_Golden-NREL.724666_TMY3.epw"
epwfile = lb.epw.EPW(_epwFile)
filteredData = epwfile.relativeHumidity.filterByConditionalStatement('x>90')
print "Number of hours with Humidity more than 90 is %d "%len(filteredData.timeStamps)
Compare that to the 500 + lines that you would have had to write previously for this operation, which were usually tied to a single interface! Now let’s see what will happen if you want to use the geometry-specific libraries. Let’s draw a sunpath in Grasshopper:
import ladybuggrasshopper.epw as epw
import ladybuggrasshopper.sunpath as sunpath
# get location data form epw file
location = epw.EPW(_epwFile).location
# initiate sunpath based on location
sp = sunpath.Sunpath.fromLocation(location, northAngle = 0, daylightSavingPeriod = None, basePoint =cenPt, scale = scale, sunScale = sunScale)
# draw sunpath geometry
sp.drawAnnualSunpath()
# assign geometries to outputs
...
Finally we ask, how would this code will look if we wanted to make a sunpath for dynamo? Well, it will be exactly the same! Just change ladybuggrasshopper in the second line to ladybugdynamo! Here is the code which is creating the sunpath below.
With this ease of scripting, we hope to involve more of our community members in our development and make it easy for others to use ladybug in their various preferred applications. By the next release, we will produce an API documentation (documentation of all the ladybug classes, methods and properties that you can script with) and begin making tutorials for those interested in getting deeper into Ladybug development.
LADYBUG
1 - Initial Release of Ladybug for Dynamo:
As is evident from the post above, we are happy to announce the first release of Ladybug for Dynamo! You can download the ladybug package from Dynamo package manager. Make sure to download version 0.0.6 which is actually 0.0.1! It took a number of trial and errors to get it up there. Once you have the file downloaded you can watch these videos to get started:
The source code can be find under ladybug-dynamo repository and (as you can already guess) it is using the new code base. It includes a very small toolkit of essential Ladybug components/nodes but it has enough to get you started. You can import weather files, draw sunpaths and run sunlighthours or radiation analyses.
There are two known issues in this release but neither of them is critical. You need to have Dynamo 0.9.1 or higher installed which you can download from here (http://dynamobuilds.com/). It is recommended that you run the scripts with ‘Manual’ run (as opposed to ‘Automatic’) since the more intense calculations can make Dynamo crash in automatic mode.
To put things in perspective, here is how we would map Ladybug for Dynamo vs Ladybug and Honeybee for Grasshopper on the classic ‘Hype graph’. The good news is that what we learned a lot from the last three years, making development of the Dynamo version easier and getting us to the plateau of productivity faster.
We should also note that the current development of the Dynamo interface is behind that of the Ladybug-Core, which means there are a number of features that are developed in the code but haven’t made their way to the nodes yet. They will be added gradually over the next month or two.
If you’re interested to get involved in the development process or have ideas for the development, follow ladybug on Facebook, Twitter and Github. We will only post major release news here. Facebook, github and twitter will be the main channels for posting the development process. There will also be a release of a new ladybug for Grasshopper soon that will use the came Ladybug-Core libraries as the Dynamo interface [Trying hard not to name it as Ladybug 2].
2 - New Project “Icarus” Provides Ladybug Capabilities Directly in Rhino
Speaking of expanded cross-platform capabilities, the talented Miguel Rus has produced a standalone Rhino Plugin off of the original Ladybug code that has been included in this release. After writing his own core C# libraries, Miguel’s plugin enables users to produce sunpath and run sunlight hours analyses in the Rhino scene without need of opening Grasshopper or engaging the (sometimes daunting) act of visual scripting.
This release includes his initial RHP plugin file. It is hoped that Miguel’s efforts will extend some of the capabilities of environmental design to individuals who are unfamiliar with visual scripting, casting the network of our community into new territory. We need your help spreading the word about Icarus since the people who will benefit the most from it have probably not read this far into the release notes. Also, as the project is in the early stages, your feedback can make a great difference. You can download the current release from this link.
Once you download the zip file. Right click and unblock it. Then extract the files under C:\Program Files\Rhinoceros 5 (64-bit)\Plug-ins\ folder. Drag and drop the RHP file into Rhino and you should be ready to go. You can either type Icarus in the command line or open it via the panels. Here is a short video that shows how to run a sunlighhours analysis study in Rhino.
3 - BakeIt Input Now Supports a Pathway to PDF +Vector Programs
As promised in the previous release, the BakeIt_ option available on Ladybug’s visual components has been enhanced to provide a full pathway to vector-based programs (like Illustrator and Inkscape) and eases the export to vector formats like PDFs.
This means that the BakeIt_ operation now places all text in the Rhino scene as actual editable text (not meshes) and any colored meshes are output as groups of colored hatches (so that they appear as color-filled polygons in vector-based programs). There is still an option to bake the colored geometries as light meshes (which requires smaller amounts of memory and computation time) but the new hatched capability should make it easier to incorporate Ladybug graphics in architectural drawings and documents like this vector psychrometric chart.
4 - Physiological Equivalent Temperature (PET) Now Available
Thanks to the efforts of Djordje Spasic, it is now possible to compute the common outdoor comfort metric ‘Physiological Equivalent Temperature’ (PET) with Ladybug. The capability has been included with this release of “Thermal Comfort Indices” component and is supported by a “Body Characteristics” component in the Extra tab. PET is particularly helpful for evaluating outdoor comfort at a high spatial resolution and so the next Honeybee release will include an option for PET with the microclimate map workflow.
5 - Solar Hot Water Components Available in WIP
Chengchu Yan and Djordje Spasic have built a set of components that perform detailed estimates of solar hot water. The components are currently undergoing final stages of testing and are available in the WIP tab of this release. You can read the full release notes for the components here.
6 - New Ladybug Graphic Standards
With the parallel efforts or so many developers, we have made an effort in this release to standardize the means by which you interact with the components. This includes warnings for missing inputs and the ability to make either icons or text appear on the components as you wish (Hi Andres!). A full list of all graphic standards can be found here. If you have any thoughts or comments on the new standards, feel free to voice them here.
7 - Wet Bulb Temperature Now Available
Thanks to Antonello Di Nunzio - the newest member of the Ladybug development team, it is now possible to calculate wet bulb temperature with Ladybug. Antonello’s component can be found under the WIP tab and takes inputs of dry bulb temperature, relative humidity, and barometric pressure.
8 - New View Analysis Types
The view analysis component now allows for several different view studies in addition to the previous ‘view to test points.’ These include, skyview (which is helpful for studies of outdoor micro-climate), as well as spherical view and ‘cone of vision’ view, which are helpful for indoor studies evaluating the overall visual connection to the outdoors.
HONEYBEE
1 - Connection to THERM and LBNL Programs
With this release, many of you will notice that a new tab has been added to Honeybee. The tab “11 | THERM” includes 7 new components that enable you to export ready-to-simulate Lawrence Berkeley National Lab (LBNL) THERM files from Rhino/Grasshopper. THERM is a 2D finite element heat flow engine that is used to evaluate the performance of wall/window construction details by simulating thermal bridging behavior. The new Honeybee tab represents the first ever CAD plugin interface for THERM, which has been in demand since the first release of LBNL THERM several years ago. The export workflow involves the drawing of window/wall construction details in Rhino and the assigning of materials and boundary conditions in Grasshopper to produce ready-to-simulate THERM files that allow you to bypass the limited drawing interface of THERM completely. Additional components in the “11 | THERM” tab allow you to import the results of THERM simulations back into Grasshopper and assist with incorporating THERM results into Honeybee EnergyPlus simulations. Finally, two components assist with a connection to LBNL WINDOW for advanced modeling of Glazing constructions. Example files illustrating many of the capabilities of the new components can be found in there links.
THERM_Export_Workflow, THERM_Comparison_of_Stud_Wall_Constructions
Analyze_THERM_Results, Thermal_Bridging_with_THERM_and_EnergyPlus
Import_Glazing_System_from_LBNL_WINDOW, Import_LBNL_WINDOW_Glazing_Assembly_for_EnergyPlus
It is recommended that those who are using these THERM components for the first time begin by exploring this example file.
Tutorial videos on how to use the components will be posted soon. A great deal of thanks is due to the LBNL team that was responsive to questions at the start of the development and special thanks goes to Payette Architects, which allowed Chris Mackey (the author of the components) a significant amount of paid time to develop them.
2 - Electrical Lighting Components with Enhanced Capabilities for Importing and Manipulating IES Files
Thanks to the efforts of Sarith Subramaniam, it is now much easier and more flexible to include electric lighting in Honeybee Radiance simulations. A series of very exciting images and videos can be found in his release post.
You can find the components under WIP tab. Sarith is looking for feedback and wishes. Please give them a try and let him know your thoughts. Several example files showing how to use the components can be found here. 1, 2, 3.
3- Expanded Dynamic Shade Capabilities
After great demand, it is now possible to assign several different types of control strategies for interior blinds and shades for EnergyPlus simulations. Control thresholds range from zone temperature, to zone cooling load, to radiation on windows, to many combinations of these variables. The new component also features the ability to run EnergyPlus simulations with electrochromic glazing. An example file showing many of the new capabilities can be found here.
Dragonfly Beta
In order to link the capabilities of Ladybug + Honeybee to a wider range of climatic data sets and analytical tools, a new insect has been initiated under the name of Dragonfly. While the Dragonfly components are not included with the download of this release, the most recent version can be downloaded here. An example file showing how to use Dragonfly to warp EPW data to account for urban heat island effect can also be found here. By the next release, the capabilities of Dragonfly should be robust enough for it to fly on its own. Additional features that will be implemented in the next few months include importing thermal satellite image data to Rhino/GH as well as the ability to warp EPW files to account for climate change projections. Anyone interested in testing out the new insect should feel free to contact Chris Mackey.
And finally, it is with great pleasure that we welcome Sarith and Antonello to the team. As mentioned in the above release notes, Sarith has added a robust implementation for electric light modeling with Honeybee and Antonello has added a component to calculate wet bulb temperature while providing stellar support to a number of people here on the GH forum.
As always let us know your comments and suggestions.
Enjoy!
Ladybug+Honeybee development team
PS: Special thanks to Chris for writing most of the release notes!…
ion of both Ladybug and Honeybee. Notable among the new components are 51 new Honeybee components for setting up and running energy simulations and 15 new Ladybug components for running detailed comfort analyses. We are also happy to announce the start of comprehensive tutorial series on how to use the components and the first one on getting started with Ladybug can be found here:
https://www.youtube.com/playlist?list=PLruLh1AdY-Sj_XGz3kzHUoWmpWDXNep1O
A second one on how to use the new Ladybug comfort components can be found here:
https://www.youtube.com/playlist?list=PLruLh1AdY-Sho45_D4BV1HKcIz7oVmZ8v
Here is a short list highlighting some of the capabilities of this current Honeybee release:
1) Run EnergyPlus and OpenStudio Simulations - A couple of components to export your HBZones into IDF or OSM files and run energy simulations right from the grasshopper window! Also included are several components for adjusting the parameters of the simulations and requesting a wide range of possible outputs.
2) Assign EnergyPlus Constructions - A set of components that allow you to assign constructions from the OpenStudio library to your Honeybee objects. This also includes components for searching through the OpenStudio construction/material library and components to create your own constructions and materials.
3) Assign EnergyPlus Schedules and Loads - A set of components for assigning schedules and Loads from the Openstudio library to your Honeybee zones. This includes the ability to auto-assign these based on your program or to tweak individual values. You can even create your own schedules from a stream of 8760 values with the new “Create CSV Schedule” component. Lastly, there is a component for converting any E+ schedule to 8760 values, which you can then visualize with the standard Ladybug components
4) Assign HVAC Systems - A set of components for assigning some basic ASHRAE HVAC systems that can be run with the Export to OpenStudio component. You can even adjust the parameters of these systems right in Grasshopper.
Note: The ASHRAE systems are only available for OpenStudio and can’t be used with Honeybee’s EnergyPlus component. Also, only ideal air, VAV and PTHP systems are currently available but more will be on their way soon!
5) Import And Visualize EnergyPlus Results - A set of components to import numerical EnergyPlus simulation results back into grasshopper such that they can be visualized with any of the standard Ladybug components (ie. the 3D chart or Psychrometric chart). Importers are made for zone-level results as well as surface results and surfaces results can be easily separated based on surface type. This also means that E+ results can be analyzed with the new Ladybug comfort calculator components and used in shade or natural ventilation studies. Lastly, there are a set of components for coloring zone/surface geometry with EnergyPlus results and for coloring the shades around zones with shade desirability.
6) Increased Radiance and Daysim Capabilities - Several updates have also been made to the existing Radiance and Daysim components including parallel Radiance Image-based analysis.
7) Visualize HBObject Attributes - A few components have been added to assist with setting up honeybee objects and ensuing the the correct properties have been assigned. These include components to separate surfaces based on boundary condition and components to label surfaces and zones with virtually any of their EnergyPlus or Radiance attributes.
8) WIP Grizzly Bear gbxml Exporter - Lastly, the release includes an WIP version of the Grizzly Bear gbXML exporter, which will continue to be developed over the next few months.
And here’s a list of the new Ladybug capabilities:
1) Comfort Models - Three comfort models that have been translated to python for your use in GH: PMV, Adaptive, and Outdoor (UTCI). Each of these models has a “Comfort Calculator” component for which you can input parameters like temperature and wind speed to get out comfort metrics. These can be used in conjunction with EPW data or EnergyPlus results to calculate comfort for every hour of the year.
2) Ladybug Psychrometric Chart - A new interactive psychrometric chart that was made possible thanks to the releasing of the Berkely Center for the Built Environment Comfort Tool Code (https://github.com/CenterForTheBuiltEnvironment/comfort-tool). The new psychrometric chart allows you to move the comfort polygon around based on PMV comfort metrics, plot EPW or EnergyPlus results on the psych chart, and see how many hours are made comfortable in each case. The component also allows you to plot polygons representing passive building strategies (like internal heat gain or evaporative cooling), which will adjust dynamically with the comfort polygon and are based on the strategies included in Climate Consultant.
3) Solar Adjusted MRT and Outdoor Shade Evaluator - A component has been added to allow you to account for shortwave solar radiation in comfort studies by adjusting Mean Radiant Temperature. This adjusted MRT can then be factored into outdoor comfort studies and used with an new Ladybug Comfort Shade Benefit Evaluator to design outdoor shades and awnings.
4) Wind Speed - Two new components for visualizing wind profile curves and calculating wind speed at particular heights. These allow users to translate EPW wind speed from the meteorological station to the terrain type and height above ground for their site. They will also help inform the CFD simulations that will be coming in later releases.
5) Sky Color Visualizer - A component has been added that allows you to visualize a clear sky for any hour of the year in order to get a sense of the sky qualities and understand light conditions in periods before or after sunset.
Ready to Start?
Here is what you will need to do:
Download Honeybee and Ladybug from the same link here. Make sure that you remove any old version of Ladybug and Honeybee if you have one, as mentioned on the Ladybug group page.
You will also need to install RADIANCE, DAYSIM and ENERGYPLUS on your system. We already sent a video about how to get RADIANCE and Daysim installed (link). You can download EnergyPlus 8.1 for Windows from the DOE website (http://apps1.eere.energy.gov/buildings/energyplus/?utm_source=EnergyPlus&utm_medium=redirect&utm_campaign=EnergyPlus%2Bredirect%2B1).
“EnergyPlus is a whole building energy simulation program that engineers, architects, and researchers use to model energy and water use in buildings.”
“OpenStudio is a cross-platform (Windows, Mac, and Linux) collection of software tools to support whole building energy modeling using EnergyPlus and advanced daylight analysis using Radiance.”
Make sure that you install ENERGYPLUS in a folder with no spaces in the file path (e.g. “C:\Program Files” has a space between “Program” and “Files”). A good option for each is C:\EnergyPlusV8-1-0, which is usually the default locations when you run the downloaded installer.
New Example Files!
We have put together a large number of new updated example files and you should use these to get yourself started. You can download them from the link on the group page.
New Developers:
Since the last release, we have had several new members join the Ladybug + Honeybee developer team:
Chien Si Harriman - Chien Si has contributed a large amount of code and new components in the OpenStudio workflow including components to add ASHRAE HVAC systems into your energy models and adjust their parameters. He is also the author of the Grizzly Bear gbxml exporter and will be continuing work on this in the following months.
Trygve Wastvedt - Trygve has contributed a core set of functions that were used to make the new Ladybug Colored Sky Visualizer and have also helped sync the Ladybug Sunpath to give sun positions for the current year of 2014
Abraham Yezioro - Abraham has contributed an awesome new bioclimatic chart for comfort analyses, which, despite its presence in the WIP tab, is nearly complete!
Djordje Spasic - Djordje has contributed a number of core functions that were used to make the new Ladybug Wind Speed Calculator and Wind Profile Visualizer components and will be assisting with workflows to process CFD results in the future. He also has some more outdoor comfort metrics in the works.
Andrew Heumann - Andrew contributed an endlessly useful list item selector, which can adjust based on the input list, and has multiple applications throughout Ladybug and Honeybee. One of the best is for selecting zone-level programs after selecting an overall building program.
Alex Jacobson - Alex also assisted with the coding of the wind speed components.
And, as always, a special thanks goes to all of our awesome users who tested the new components through their several iterations. Special thanks goes to Daniel, Michal, Francisco, and Agus for their continuous support. Thanks again for all the support, great suggestions and comments. We really cannot thank you enough.
Enjoy!,
Ladybug + Honeybee Development Team
PS: If you want to be updated about the news about Ladybug and Honeybee like Ladybug’s Facebook page (https://www.facebook.com/LadyBugforGrasshopper) or follow ladybug’s twitter account (@ladybug_tool).
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inner As Curve() = section.ToNurbsCurve().Offset(normal, pc, -plate, 1e-3, 1e-4, Rhino.Geometry.CurveOffsetCornerStyle.Sharp)
the error message is:
"
{0}0. Error: Het oplossen van de overbelasting is mislukt omdat dit aantal argumenten door geen enkele toegankelijke Offset wordt geaccepteerd. (line 104)
"
this is the VBA script:
"Option Strict OffOption Explicit On'Import SDK and Framework namespacesImports RhinoImports Rhino.GeometryImports Rhino.CollectionsImports GrasshopperImports Grasshopper.KernelImports Grasshopper.Kernel.DataImports Grasshopper.Kernel.TypesImports GH_IOImports GH_IO.SerializationImports SystemImports System.IOImports System.XmlImports System.DataImports System.DrawingImports System.ReflectionImports System.CollectionsImports System.Windows.FormsImports Microsoft.VisualBasicImports System.Collections.GenericImports System.Runtime.InteropServices'Code generated by Grasshopper(R) (except for RunScript() content and Additional content)'Copyright (C) 2011 - Robert McNeel & Associates<System.Runtime.CompilerServices.CompilerGenerated()> _Public Class Script_Instance Implements IGH_ScriptInstance#Region "Members" ''' <summary>List of error messages. Do not modify this list directly.</summary> Private __err As New List(Of String) ''' <summary>List of print messages. Do not modify this list directly, use the Print() and Reflect() functions instead.</summary> Private __out As New List(Of String) ''' <summary>Represents the current Rhino document.</summary> Private doc As RhinoDoc = RhinoDoc.ActiveDoc ''' <summary>Represents the Script component which maintains this script.</summary> Public owner As Grasshopper.Kernel.IGH_ActiveObject#End Region#Region "Utility functions" ''' <summary>Print a String to the [Out] Parameter of the Script component.</summary> ''' <param name="text">String to print.</param> Private Sub Print(ByVal text As String) __out.Add(text) End Sub ''' <summary>Print a formatted String to the [Out] Parameter of the Script component.</summary> ''' <param name="format">String format.</param> ''' <param name="args">Formatting parameters.</param> Private Sub Print(ByVal format As String, ByVal ParamArray args As Object()) __out.Add(String.Format(format, args)) End Sub ''' <summary>Print useful information about an object instance to the [Out] Parameter of the Script component. </summary> ''' <param name="obj">Object instance to parse.</param> Private Sub Reflect(ByVal obj As Object) __out.Add(GH_ScriptComponentUtilities.ReflectType_VB(obj)) End Sub ''' <summary>Print the signatures of all the overloads of a specific method to the [Out] Parameter of the Script component. </summary> ''' <param name="obj">Object instance to parse.</param> Private Sub Reflect(ByVal obj As Object, ByVal method_name As String) __out.Add(GH_ScriptComponentUtilities.ReflectType_VB(obj, method_name)) End Sub#End Region ''' <summary> ''' This procedure contains the user code. Input parameters are provided as ByVal arguments, ''' Output parameter are ByRef arguments. You don't have to assign output parameters, ''' they will be null by default. ''' </summary> Private Sub RunScript(ByVal p0 As Point3d, ByVal p1 As Point3d, ByVal p2 As Point3d, ByVal pc As Point3d, ByVal plate As Double, ByVal itt As Integer, ByVal dev As Double, ByRef crvout As Object, ByRef crvin As Object, ByRef sec As Object, ByRef opp As Object, ByRef div As Object, ByRef pt4 As Object) 'your code goes here… opp = "test01" Dim section As New Polyline(5) section.Add(p0) section.Add(p1) section.Add(p2) section.Add(pc) section.Add(p0) Dim normal As Vector3d = vector3d.CrossProduct((p1 - p0), (p2 - p0)) Dim area As Double Dim chicken_int As Int32 = 0 Dim XX As Double Dim YY As Double Do chicken_int += 1 If (chicken_int > itt) Then Exit Do 'Compute the section offset Dim inner As Curve() = section.ToNurbsCurve().Offset(normal, pc, -plate, 1e-3, 1e-4, Rhino.Geometry.CurveOffsetCornerStyle.Sharp) Dim edges As New CurveList(inner) edges.Add(section.ToNurbsCurve()) crvin = edges Dim sections As Brep() = Brep.CreatePlanarBreps(edges) If (sections Is Nothing) Then Exit Do opp = "test02" 'Compute the centroid of the current section Dim am As AreaMassProperties = AreaMassProperties.Compute(sections(0)) Dim ct As Point3d = am.Centroid XX = am.CentroidCoordinatesMomentsOfInertia.X YY = am.CentroidCoordinatesMomentsOfInertia.Y area = am.Area Dim dx As Vector3d = pc - ct 'Compute the error of the current centroid Dim dl As Double = dx.Length div = dl 'Update output values crvout = section crvin = inner sec = sections(0) opp = area If (dl < dev) Then Exit Do 'Adjust outline with a boosting factor. section(3) += dx * 4 Loop pt4 = section(3) crvout = section End Sub '<Custom additional code> '</Custom additional code> End Class
"…