he installation folder, Drag & drop SYNTACTIC(green one) over your grasshopper canvas.3. Close your rhino and reopen it. 4. Type GrasshopperDeveloperSettings5. Tick the Memory load *.GHA assemblies using COFF byte arrays option6. Run grasshopper and enjoy plugin…
picture:
... and on a PC without anything attached to the serial port. When you open the port, start the read component and its timer, do you then get a stream of <empty> values in the log output? (hmmm... I suppose that's only reasonable - but still, you are also seeing this?)
I suppose that, because of the mutually exclusive behavior of both the spider and grasshopper (i.e. only one at a time can access the COM port), we can deduce that we are listening on the correct port.
Am I listening on the correct pin (if such a notion makes sense at all)? If I look back to the spider software, I see that 9 channels are listed and that it's only the measured value on channel 0 that changes when I press the load cell. Channels 1, 2, and 3 report OVERFLOW; 4, 5, 6, and 7 are pretty much constant at 0.000 to 0.005 V; and channel 8 says FFFF. I do not know how things like that work so I do not know if they reflect reading from the 9 pins on the D-sub 9 connector.
As for your BTW question: no, I don't need to record all of the sensor values. I suppose that the Out value on the Read component will always reflect the most current value and that's all that I need to get on with life. In the end, the idea is that we have 4 load cells in the 4 corners of a plate onto which a vertical pipe is fixed. Loads are then put on the top end of the pipe and we'll have to visualize both direction and magnitude of the bending moment that is calculated from the compression - tension readings from the load cells... We've done this on a scaled model and streamed load cell information into MatLab. Now we'll have to use a different datalogger and I was hoping to be able to do the post processing in Rhino.
wim…
ort and export from the images below and also from the HELP file of DB in attachments (Page 71: Importing Geometric Data; Page 78-80: Import 3 - D CAD Data). In their HELP file, they mention about "import geometric data".
However, regarding the input of schedules, loads, constructions and etc., DB normally uses "Component " and "Template" (Page 29: Templates And Components; Page 591: Templates; Page 533: Components). "Templates" are databases of typical generic data, including Activity templates, Construction templates, Glazing templates, Facade templates, HVAC templates, Location Templates, and etc. "Component " are databases of individual data items (e.g. a construction type, material, window pane).
Both "Component " and "Template" are allowed to be imported and exported by using "Import / Export library data" command (.ddf format - DB Database File; Page 734: Import Components/Templates, Export Components/Templates). DB also allows us to build up our own libraries of templates and components (Page 731: Library Management; Page 733: Template Library Management).
In order to import both geometric information and other information related to schedules, loads, constructions and etc. from GH to BD, we supposed the following two ways:
1. GH(HB+GB) --> gbXML (both geometric and "Component " and "Template" information) --> DB
This is the way we most prefer. We did see information related to schedules, loads, constructions encoded in the gbXML file generated by GB, but still do not know the reason why DB did not take this information (I also mentioned this in Q6 within the gh file). We assume this might because the gbXML file we create encodes the schedules based on a different template / schema than the one DB expects. We also post this question to the DB forum for help.
(http://www.designbuilder.co.uk/component/option,com_forum/Itemid,25/page,viewtopic/p,13755/#13755)
2. GH(HB+GB) --> gbXML (geometric information only) + .ddf ("Component " and "Template" information only) --> DB
If the first way doesn't work and DB only takes geometric information from the gbXML, then we might think of the other way - generating the .ddf files from GH(HB+GB) to pass the schedule, load and construction information to DB.
I was wondering if it is feasible for HB and GB to have this function? And what is your suggestion to achieve this?
In addition, we notice that DB can export XML files (not gbXML), so we are trying to figure out if DB also accepts / reads the XML file. If so, we might be able to convert the gbXML (with both geometric and schedule information) to XML. What do you think about that?
Thank you again for all your help!
Best,
Ding
DB import
DB export
Template libraries
Component libraries
…
s para acercarse al diseño paramétrico.
El curso esta dirigido a arquitectos diseñadores e ingenieros de diseño que pretendan implementar las técnicas del modelado por parámetros dentro de sus herramientas de proyectación.
La duración de dicho curso es de 20 horas, repartidas en 6 sesiones los días lunes y miércoles de 5pm a 8:20pm, en el espacio cultural calle nueve (calle 9 # 43b-75 abajo del parque del Poblado. https://www.facebook.com/calle.nueve). El curso dará inicio el día lunes 22 de Agosto de 2011. El máximo de inscritos por curso es de 15 personas para garantizar la calidad de la enseñanza.
Este curso estará dictado por los arquitectos Ana Maria Bustamante Y David Vanegas arquitectos de la oficina de arquitectura interior137 (www.interior137.blogspot.com) que cuentan con más de dos años de experiencia en el manejo de GRASSHOPPER, y tienen una trayectoria reconocida como docentes en la Facultad de Arquitectura de la U.P.B.
Para participar en el taller los estudiantes deberán tener un computador portátil para su uso personal, durante todo el curso, además deben tener instalado el software Rhino versión 4.0 con la actualización SR9, y un conocimiento mínimo del modelado y la interfaz de este software.
Contenidos:
Sesión 1: * Introducción al modelado por parámetros y al diseño mediante algoritmos.
* Grasshopper: datos + acciones. Interface.
Sesión 2: * Datos fijos, datos variables: Parámetros.
* Puntos, Curvas parametrizables.
* Transformaciones: Mover, Rotar.
Sesión 3: * Datos múltiples (listas): Series. Rangos.
* Funciones de 1 y 2 variables.
Sesión 4: * Gestiones de datos en listas: seleccionar items, ordenarlos, desordenarlos, eliminarlos.
Sesión 5: * Atractores.
Sesión 6: * Superficies: creación de superficies, panelizaciones.
Informes e inscripciones:
Para inscribirse en el curso deberá reservar su cupo abonando el costo total del curso al menos hasta el miércoles 17 de Agosto. Este valor se devolverá totalmente únicamente en caso de cancelación del curso.
Para mayor información, póngase en contacto a través del correo electrónico interior137@gmail.com asunto: CURSO GH…
this common installation problem please find a tested remedy shared by one of the group members:
Comment by Iman Sheikhansari on August 26, 2019 at 8:33amDelete Comment
HiIf you are encountering a problem with rhino 6 versions don't worryFollow these steps.1. Download SYNTACTIC from https://sites.google.com/site/pirouznourian/syntactic-design2. Install it and go to the installation folder, Drag & drop SYNTACTIC(green one) over your grasshopper canvas.3. Close your rhino and reopen it. 4. Type GrasshopperDeveloperSettings5. Tick the Memory load *.GHA assemblies using COFF byte arrays option6. Run grasshopper and enjoy plugin
I hope this helps,
Best regards,
Pirouz
…
both my plotter/cutter and wide format printer. I had been running the plotter from my main work laptop - a Win10 machine via the plotters USB port. As it turns out you can't get Win XP drivers for this USB connection so I needed another solution.
I tried to use the plotters DB25 serial port connection using an old DB9 to DB25 modem cable I had in my collection = no luck the plotter wouldn't talk. A bit more research and it turns out these plotters need a 'null modem' cross over cable to operate. I found a pic of the correct wiring online and made up my own with some cable and connectors from the local electronics hobby shop.
With this hooked up and using Hyperterminal I was able to fire some codes to the plotter directly and get a response back - winning!
At this point I got my original code working with the 'net use' redirect from LPT1 to COM1.
HOWEVER - being that the plotter was now on a COM port there are a few more interesting things you can do with it - one is being able to read the paper size/cut area from the printer.
So what I needed to to was find a way to send and receive data to/from the plotter using the serial port.
A bit of research into .NET's serial port interface and using a bunch of small pieces of test code I have manged to completely re-jig this driver.
Upgrades include:
- Direct Serial Port comms using Null Modem cable (a USB to serial adaptor + null modem should also work)
- Plot area read from the plotter - a rectangle the size of the plot area is placed on a separate layer and coloured red
- Testing to see if selected plotting curves are both closed and inside of the cutting area - with errors shown and exiting if they are not right.
- After plot 'parking' of the plot head at the end of the cut items + an adjustable offset (currently requires manual resetting of origin on the plotter before for next cut)
Great thing is it is now 100% running within Rhino Python - no DOS command line calls = no flashing up of the CMD wind. Also no temp files needed on the HDD and no limit to number of curves that can be plotted - tested with 200 or so with no issues.
Overall very happy with whole project - have learnt a LOT about Python and .NET interfacing AND ended up with a very handy/useful tool.
Cheers
DK
# This code is a WIP # It plots directly to a DGI Plotter# via the serial port
import System.IO.Ports as Portsimport rhinoscriptsyntax as rsimport time
#Some setup valuescom_port = 'COM1' #change to match plotter port baud_rate = 9600 #change to match plotter settingplotter_step = .025 #mmfinsh_offset = 10 #mm
#Delete old cutting area and cut objectsif rs.IsLayer('Cutting Area'): rs.PurgeLayer('Cutting Area')if rs.IsLayer('Cutting Objects'): rs.PurgeLayer('Cut Objects')
#Setup Serial PortMyport = Ports.SerialPort(com_port)Port_Write = Ports.SerialPort.WriteMyport.BaudRate = baud_rateMyport.ReadTimeout=5000 #5 secsMyport.Close()Myport.Open()
#Setup PlotterPort_Write(Myport, 'PU;PA0,0;IN;\n')Port_Write(Myport, 'SP1;\n')Port_Write(Myport, 'PA;\n')time.sleep(2)
#Read the Paper size from PlotterPort_Write(Myport, 'OH;') #HPGL read limits codetime.sleep(2)
return1 = ''papersize = ''count = 0char_in_buffer = 0chars_in_buffer = Ports.SerialPort.BytesToRead.GetValue(Myport)
if chars_in_buffer == 0: print 'Plotter not ready' Myport.Close() exit()
while (count < chars_in_buffer): return1 = Myport.ReadChar() papersize = papersize + chr(return1) count = count + 1
papersize = papersize.split(",")rect1 = (float(papersize[2])*plotter_step)rect2 = (float(papersize[3])*plotter_step)
print 'Cutting area = ' + str(rect1) + 'x' + str(rect2)
#place cutting area curve on its own layer, make it red and lock itplane = rs.WorldXYPlane()cutting_area = rs.AddRectangle( plane, (rect1), (rect2))rs.AddLayer (name='Cutting Area', color=(255,0,0), visible=True, locked=True, parent=None)rs.ObjectLayer(cutting_area, 'Cutting Area')
#get plotting objects
allCurves = rs.GetObjects("Select curves to plot", rs.filter.curve)
#test to see if these are closed curves - exit if not
for curve in allCurves: test_closed = rs.IsCurveClosed(curve) if test_closed == 0: print "One or move of these curves are not closed" Myport.Close() exit()
#test to see if these are inside cutting area - exit if not
for curve in allCurves: test_inside = rs.PlanarClosedCurveContainment(curve, cutting_area)
if test_inside==0 or test_inside==1: print "One or more of these curves are outside of cut area" Myport.Close() exit()
#All ok - convert to points and send data to printer
rs.AddLayer (name='Cut Objects', color=(0,255,0), visible=False, locked=True, parent=None)
for curve in allCurves: Port_Write(Myport, 'PU;PA;SP1;\n') polyline = rs.ConvertCurveToPolyline(curve,angle_tolerance=5.0, tolerance=0.025, delete_input=False, min_edge_length=0, max_edge_length=0) points = rs.CurveEditPoints(polyline) rs.ObjectLayer(polyline, 'Cut Objects')
# PU to the first point x = points[0][0] y = points[0][1] Port_Write(Myport, 'PU' + str(int(x / plotter_step)) + ',' + str(int(y / plotter_step)) + ';\n') # PD to every subsequent point i = 1 while i < len(points): x = points[i][0] y = points[i][1] Port_Write(Myport, 'PD' + str(int(x / plotter_step)) + ',' + str(int(y / plotter_step)) + ';\n') i += 1
Port_Write(Myport,'PU;\n')
#find the far end of the cutbox = rs.BoundingBox(allCurves)far_end = str(box[1])far_end = far_end.split(",")far_end = far_end[0]far_end = float(far_end)/plotter_stepfar_end = (int(far_end))+ finsh_offsetfar_end = str(far_end)print (far_end)
#return plotter home and close portPort_Write(Myport, 'PU;PA' + far_end + ',0;IN;\n')Port_Write(Myport, 'SP1;\n')Port_Write(Myport, 'PA;\n')Myport.Close()time.sleep(10)…
aph relaxation in 3D and more). There is much more already in our GitHub repos and more to be added. For getting an idea of our future direction check this lecture out. For getting a better understanding of graphs and graph theory watch this lecture and this lecture on a gamified spatial configuration process. Stay tuned for more and do not hesitate to post Python questions in the meantime.
ps. If you are having installation problems, please check the remedy suggested below:
Comment by Iman Sheikhansari on August 26, 2019 at 8:33amDelete Comment
HiIf you are encountering a problem with rhino 6 versions don't worryFollow these steps.1. Download SYNTACTIC from https://sites.google.com/site/pirouznourian/syntactic-design2. Install it and go to the installation folder, Drag & drop SYNTACTIC(green one) over your grasshopper canvas.3. Close your rhino and reopen it. 4. Type GrasshopperDeveloperSettings5. Tick the Memory load *.GHA assemblies using COFF byte arrays option6. Run grasshopper and enjoy plugin
…
ariations, but each seems to lack the sophistication to generate a ‘zip’ that retains its general shape over the whole curve.
Basically I’m trying to understand the process behind this: http://www.schindlersalmeron.com/index.php?option=com_content&task=view&id=27&Itemid=29
Here is an image of the latest definition.
1. I draw a curve in Rhino, and then define it in grasshopper. I also define the point as the beginning of the curve.
2. I offset the curve to a specified depth, based on structural member
3. I generate a line from the point at a tangent to the curve, then rotate it a
defined angle.
4. I find the intersection between the rotated line and the offset curve. Then generate a tangential line from this new point
5. Line is rotated at the same angle as before.
6. Process repeated.
The idea is to then generate a circle of defined diameter at each of the intersection points, then find the intersection of the circles with the curves, which are then joined up with straight lines to create the ‘zip’. This would mean a lot of copy-pasting and list management that I’m not really capable of with my limited grasshopper experience.
I had tried generating points at intervals along the curve and then eventually generating lines from one line to another with a shifted listed to form the tooth angle, but it wouldn’t retain its shape over the entirety of the curve.
Does anyone have any advice for how to tighten up this definition? I imagine that I will need to delve into vb.net scripting to address the recursive nature of the process.
I fear that I’m going about this in entirely the wrong way...
Of course the next step is to flatten out the curve for CNC manufacture.
Any help would be greatly appreciated! The potential for using grasshopper in design is amazing, and I would love to gain a deeper understanding of it!…
complicated than it seems as I have an event and a subscriber method receiving data from a serial port.
In the code below, the strings received within myReceivedLines appear when connecting with the serial port (when connecttodevice is true). However they disapear when I launch another command (when homeallis true).
As you recommended in your reply, I have added the field called myReceivedLineswithin the class so that I could use the method String.Add() to all the feedback received and commands sent.
Why does the feedback dispear when a command is sent? Is the string going to myReceivedLine disappearing because they happen within a subscriber method or is it related to the DA.SetDataList() method used to assign myReceivedLinesto the output?
Many thanks!
public class SendToPrintComponent : GH_Component { //Fields List<string> myReceivedLines = new List<string>(); SerialPort port; //subscriber method for the port.DataReceived Event private void DataReceivedHandler(object sender, System.IO.Ports.SerialDataReceivedEventArgs e) { SerialPort sp = (SerialPort)sender; while (sp.BytesToRead > 0) { try { myReceivedLines.Add(sp.ReadLine()); } catch (TimeoutException) { break; } } } protected override void SolveInstance(IGH_DataAccess DA) { //Opening the port if (port == null) { string selectedportname = default(string); DA.GetData(1, ref selectedportname); int selectedbaudrate = default(int); DA.GetData(2, ref selectedbaudrate); //Assigning an object to the field within the SolveInstance method() port = new SerialPort(selectedportname, selectedbaudrate, Parity.None, 8, StopBits.One); //Enables the data terminal ready (dtr) signal during serial communication (handshaking) port.DtrEnable = true; port.WriteTimeout = 500; port.ReadTimeout = 500; } //Event Handling Method bool connecttodevice = default(bool); DA.GetData(3, ref connecttodevice); if (connecttodevice == true) { if (!port.IsOpen) { port.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler); DA.SetDataList(0, myReceivedLines); port.Open(); } } else if (port.IsOpen) { port.DataReceived -= new SerialDataReceivedEventHandler(DataReceivedHandler); port.Close(); } if (port.IsOpen) { DA.SetData(1, "Port Open"); } //If the port is open do all the rest if (port.IsOpen) { bool homeall = default(bool); DA.GetData(5, ref homeall); //Home all sends all the axis to the origin if (homeall == true) { port.Write("G28" + "\n"); myReceivedLines.Add("G28" + "\n"); DA.SetDataList(2, myReceivedLines); } } else { DA.SetData(1, "Port Closed"); } }}…