creating the structural frame, finding the endpoints, linking these endpoints with curves and afterwards lofting the surfaces between the curves.
The results were quite nice, however, the procedure is very time consuming and inefficient. There is just too much copy-pasting involved.
(see attached file: "Old Attempts.zip" )
Mesh relaxation:
I have later on used Daniel Piker's tutorials on Mesh Relaxation and realized that this might be the way to go.
The link to these online tutorials on wewanttolearn.net is:
https://wewanttolearn.wordpress.com/2011/10/22/mesh-relaxation-kangaroo-tutorial/
His tutorials, however, only deal with mesh boxes which are ideal cubes. He then joins them together in various directions, but it is under 90 degrees angle.
( see attached file: "Daniel Pikers Examples" )
What I would like to achieve:
I want my bridges to go in all directions and angles, not just under 90 degree angle.
Ideally I would like to make a square (polygon) follow a curve (which moves in all axis) at certain number of division points. I would then loft these squares into a mesh and use that shape as a mesh box. I would later use this mesh box and relax it the same way as Daniel Piker used the cubes in his tutorial. The anchor points are only the vertices of the squares which create the lofted mesh box.
( see attached file: "New Attempts" )
As you can see below this procedure works even if the curve is moving in all directions not only along xy axis. There are, however, many problems connected to it.
The problem:
Despite all the effort I cannot seem to come up with a design where I would be able to draw a random curve which would be the guideline for my mesh box and then apply this box to one definition in order to relax the mesh and create the shape that I want. Without this I am again forced into a lot of copy pasting as the final mesh box is made out of several sections.
Also is there any way I could make the final resulting mesh a bit smoother? Increasing the number of mesh faces is probably the only way, right?
Thank you guys so much for any potential help.
All best,
Luka
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ur setup. Can you say what sensor you are using? Are you using an Arduino to write this ascii information to the serial port? If so, there may be some formatting code for the string that you'll need to do to get the Read component to function properly. I see that you were able to open the port and Start reading... so my first thought is that the data is formatted correctly....
All of the read components look for a specific character (in this case two characters) to indicate when it has reached the end of the line being read and should spit out the data. In this case, Firefly uses the Carriage Return (\r) and Line Feed (\n) to know when it has reached the end of the line. In arduino, these are automatically added to any line if you use the Serial.println("blah, blah, blah"); command. Notice, this is different from the Serial.print("nothing to see here"); command. This doesn't mean that you can't still use the regular print command... it's just you need to use the println command to indicate when you've reached the end of the line. Let's take a look at a simple example.
void setup() { Serial.begin(9600);}void loop() { int sensorValue = analogRead(A0); Serial.print("The value of the sensor is: "); Serial.println(sensorValue);
delay(20); // important to wait some small time so you aren't sending just a ton of info over to GH which will cause it to crash :(
}
The first print statement prints a string to the serial port... and the next one adds the current sensor value... and THEN adds the carriage return and line feed to start a new line. The nice thing about using these together is that you can concatenate any type of data you want. If you were to upload this sketch, you should see a sentence being printed to the serial port that says "The value of the sensor is: 512". I made up the number, but you get the idea. Notice, I also had to include a delay function. You don't always need this (there are other ways to go about this) but the important thing to note is that the loop cycle on the Arduino can run really fast. I mean... really fast. So, you wont want to send so much data over to GH, because this could flood the string buffer in the Read component and cause it to crash (eventually). It's a good idea to add some small time interval just to slow it down a bit. I should say that I've optimized the refresh rate in the next release so it's significantly faster... so hopefully this wont be as big of a problem... but hopefully that helps some.
Now... Why are you writing data to a sensor? Sensors by default are considered inputs... so I'm quite confused as to why you would want to send data back (if you are... then you need some way to handle the string data being sent from GH... this is the whole reason we built the Firefly firmata... it sets up the two-way protocol so you don't have to deal with all of that mess... If you're going to read and write, you're better off just uploading the firmata and using the Uno Read and Write components). Also, I'm not very familiar with the Hyperterm or Advanced Serial Port Terminal... but I will say that could get COM conflicts if you're trying to open the port with different tools. Anyway, I hope some of this helps you get up and running.
Cheers,
Andy
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de geometries, which can easily be adapted to changing design intentions and requirements. The core concept of the software is that the brick unit is the basis for every action performed. Basically, a design is generated through drawing, placing and manipulating individual bricks. BrickDesignoffers different methods to manipulate the individual bricks in order to map patterns on a façade. These methods can be extended ad libitum through an open script interface, which gives access to a number of brick parameters.…
Added by Ayuka Oomura at 3:40am on November 4, 2013
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eaningful. Humans must interact with it. Information arises when humans examine the data. Knowledge is created when information is transformed through human social interactions.”
Richard Gayle via spacecollective
The space in which we live can be monitored in many aspects and appears to be to be a gradient of data in continuous evolution and change. One of the major advantages of parametric tools is to be able to inform the design processes with accurate, specific and variable, in space and time, data streams .
DATA BODIES is a Grasshopper workshop that will focus on how its nature as an information processor and how it can be (ab)used in order to manipulate data, streaming inputs from various sources and use datafeeds to inform geometry or data structures from the very simple up to more complex ones. The aim is to give an understanding of information and data articultion as already a spatial and architectural operation; results may range from pure data communication protocols, dataviz or data-driven geometries depending on the skill levels and aspirations of each participant. The brief is also open to the suggestions and opportunities that may rise during the workflow.
DETAILS: http://www.superbelleville.org/dataworkshop/…
Introduzione a Grasshopper", il primo manuale su Grasshopper.
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I corsi PLUG IT nascono dalla volontà di promuovere le nuove tecnologie digitali di supporto alla progettazione e condividere il know-how maturato attraverso ricerca, collaborazione con i più importanti studi di architettura e pubblicazioni internazionali.
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Verranno introdotte le nozioni base di Grasshopper approfondendo le metodologie della progettazione parametrica e le tecniche di modellazione algoritmica per la generazione di forme complesse. Il corso è rivolto a studenti e professionisti con esperienza minima nella modellazione 3D e si articolerà in lezioni teoriche ed esercitazioni.
. Argomenti trattati:
- Introduzione alla progettazione parametrica: teoria, esempi, casi studio - Grasshopper: concetti base, logica algoritmica, interfaccia grafica - Nozioni fondamentali: componenti, connessioni, data flow
- Funzioni matematiche e logiche, serie, gestione dei dati - Analisi e definizione di curve e superfici
- Definizione di griglie e pattern complessi - Trasformazioni geometriche, paneling - Attrattori, image sampler
- Data tree: gestione di dati complessi - Digital fabrication: teoria ed esempi - Nesting: scomposizione di oggetti tridimensionali in sezioni piane per macchine CNC
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Verrà rilasciato un attestato finale.
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Ulteriori info e programma completo su: www.arturotedeschi.com e su www.samilolab.it…
work with color to fit it into this logic (porous structure)?the range of colors: from white to yellow, orange, red. to blackis not so nice, saying, does not match to the design of the house.So there for it should only show the material what carries this pattern.So my question in yours case:i think that the picture of you must be thought as invert, so that it's become functional as well. if you thought this as invert,than you musst icrease the surface division,so that the rays of the sun can be disturbed to penetrate the house.that is a good the example:http://www.detail.de/inspiration/fuenf-hoefe-in-muenchen-100701.htmlin your case, the function of the patterns would get parametric significance. where more sunlight, consequently a denser pattern, and of course vice versa.therefore, the attractor should be the solar/sun system.http://digitalsubstance.wordpress.com/2011/12/07/facade-porosity-ad...What do you mean, i still see a version of you?http://www.youtube.com/watch?v=JoqDYcCDOTgThanks…
roduced the same error.
I tried to run them again with the file already open and I got this (I imagine predictable) error:
Sorry! But the number of available CPUs on your machine is 4.
Honeybee set the number of CPUs to 4.
Grid-based Radiance simulation
The component is checking ad, as, ar and aa values. This is just to make sure that the results are accurate enough.
Good to go!
Current working directory is set to: C:\ladybug\Parametric_Shading_Wall\psw_z0.25_t.025_y.2_r90_m3_lux\gridBasedSimulation\
Failed to remove the old directory.
WindowsError(32, 'The process cannot access the file because it is being used by another process')
Failed to read the results!
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
Runtime error (PythonException): Failed to read the results!
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
rtrace: fatal - (psw_z0.25_t.025_y.2_r90_m3_lux_RAD.oct): truncated octree
Traceback:
line 336, in script
@Mostapha, if it is indeed a different issue, what do you think it could be?
Thanks again,
-Nicholas…
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POSTS
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ike using something like the Z vector, but technically you can use any vector you want. This vector will actually determine the static rotatation of all the planes, so you can control that here if you like. One important thing that I've noticed is that the closer the vector is to the plane of the curve or if its too similar to one of the tangent vectors, the more likely you'll have "flipping"
2) Take the cross product between the tangent and the static vector. This will be your first perpendicular vector, which you can use for the X component of the plane.
3) Take the cross product between the tangent and the result of the previous cross product. Use this result as the Y component of the plane. All three components (X, Y, and Z (which is the tangent vector)) are all perpendicular to each other now.
After you've done that you should have planes that decrease twisting. If your curve is not planar, then there will always be some twisting in the frames, but it will be minimal enough to use them effectively.
There also may be "flipping" within the frames, which means one (or both) of two things. First, you could have planes that have reversed their vectors, so the X vector is properly oriented, but pointing down when it should be pointing up. Second, the X and Y vectors could have potentially swapped, so that Y "should" be X and X "should" be Y. In order to check these things, you'll need to do a few tests. The first one is find out whether the vector (X or Y) of the plane your testing is pointing in the opposite direction of previous vector. The second test is to find out whether the vector (X or Y) of the plane your testing is perpendicular to the previous vector. In both cases, an angle test between the two vectors will be able to tell you what you need to know, but you will likely NEVER get exactly 180 for an opposite test or 90 for a perpendicular test. That means that you have to choose a range with which to determine that a given vector is opposite or perpendicular.
You should start testing the X vector to see if anything is wrong. If you find that the X vector is fine, then just move on because Rhino will only allow you to create right handed planes, and the Z vector (the tangent) will always be the same.
I don't believe that there's a native function within the old dotNET SDK for calculating angles, so use the example at the link below. It basically takes the arcCosine of the Dot Product of the two vectors your testing to return the angle in Radians. I'm not sure if this function is included in RhinoCommon or not....
http://wiki.mcneel.com/developer/sdksamples/anglebetweenvectors…