@kts.nguyenhoangloc wrote:
Dear all,
I have a list of list and want to flatten it in python.
I try a for loop and get a runtime error. Please advise what to be modified.
Appreciate your support!
Loc.
Posts: 6
Participants: 3
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Flatten list of list in Grasshopper Python
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Hatch list in Ghpython
@seghierkhaled wrote:
Hello, i create a script to add hatch but the problem it can’t detect list hatch automatically unless i open options and select hatch than click ok.
This happen also with other hatch components from other plugins
Posts: 5
Participants: 2
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Rhino Window Size and Position
@eric.bunn wrote:
Hi,
Is there a way to set the size and position of the Rhino Window using Rhinoscript or the Rhino API? I want to set the size to 50% with the left of the window at the screens center.
Thanks,
Eric
Posts: 1
Participants: 1
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Using some letters on a text
@kadirsyk wrote:
Hi All,
I have a question about texts on rhino.
ı gave some various names to parts like “CONST 20MM YELLOW” or “CONST 15MM BLACK” by construction script.
I just want to get thickness information on given names automatically. 20MM, 15MM etc.
How can ı do it by rhino script? ı cant find proper method.Thanks.
Posts: 1
Participants: 1
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Example of using a Class in RhinoPython
@Willem wrote:
Hi All,
I’ve been wanting to post an example of using classes in RhinoPython for a long time.
Inspired by the recent contamination simulations I found a good example of using a class.At least I hope so, as understanding classes takes some time and maybe these examples are already too complex. Let me know if you have any questions or add comments to help others.
The first script is a simple random population “walking around”
contamination_simulation_01.py (4.3 KB)
Building on that first script I made a random person contaminated and let all walk around.
If someone comes too close to a contaminated person the contamination extends to them.
contamination_simulation_02.py (5.6 KB)
In the last version I added avoidance: everyone that is contaminated tries to avoid proximity to others by adjusting their course.
contamination_simulation_03.py (7.2 KB)
-Willem
Below the full code of the last version (contamination_simulation_03.py)
import rhinoscriptsyntax as rs import scriptcontext as sc import Rhino import random import System # script by willemderks march 2020 # the script is an attempt to visualize the spread of a virus in a community # based on the behaviour of the individuals in that community # goal is to give an example of how classes can be used in RhinoPython class Person(object): """ this defines a class object that represents a person inside the simulation this object will have spatial properties a position (.point) a direction (.vector) a speed (.speed) this object will have virus related properties contaminated True/False symptomatic True/False immune True/False there are additional properties that influence the behaviour carelessness 0.0 ~ 1.0 """ #these are some class global variables #changing these will affect all class instances color_dict = {} #dictionary with colors for states color_dict['healty'] = System.Drawing.Color.FromArgb(80,120,80) color_dict['contaminated'] = System.Drawing.Color.FromArgb(140,50,50) color_dict['immune'] = System.Drawing.Color.FromArgb(190,220,190) infection_distance = 10 #distance for contamination infection_duration = 150 #frames it takes to fight infection and become immune def __init__(self, point, vector, speed): #this method is called when creating the instance #the self variable represents the instance itself self.point = point self.vector = vector self.speed = speed self.state = 'healty' #by default all persons are healty self.prepared_point = None self.color = self.color_dict[self.state] self.others = [] self.contaminated_frames = 0 def add_others(self, others): #add others exclusing self self.others = [other for other in others if not other == self] def distance_to(self,other): #calculate the distance to another person return self.point.DistanceTo(other.point) def future_position(self): return self.point + (self.vector*self.speed) def do_contamination(self): #check if others in proximity and pass contamination if self.state == 'contaminated' : for other in self.others: if other.state == 'healty': if self.distance_to(other) <= self.infection_distance: other.state = 'contaminated' def adjust_course(self): #predict the position of others for the next frame #if they are contaminated and too close adjust direction if self.state != 'contaminated': return my_future_position = self.future_position() avoidance_vectors = [] for other in self.others: if other.state == 'contaminated': continue #test if the next frame I'm too close other_future_position = other.future_position() other_future_distance = my_future_position.DistanceTo(other_future_position) if other_future_distance <= self.infection_distance: #create vector away from future position away_vec = Rhino.Geometry.Vector3d(my_future_position-other_future_position) away_vec.Unitize() #set the length of the vector little over the safe distance away_vec = away_vec * 1.1 * (self.infection_distance*other_future_distance) avoidance_vectors.append(away_vec) if not avoidance_vectors : return #get the mean vector of all avoidances all_vec = Rhino.Geometry.Vector3d(0,0,0) for vec in avoidance_vectors: all_vec = all_vec + vec mean_vec = all_vec/len(avoidance_vectors) mean_vec.Unitize() self.vector = mean_vec def prepare_frame(self): #if infected, contaminate all that are close self.do_contamination() if self.state == 'contaminated': self.contaminated_frames += 1 if self.contaminated_frames > self.infection_duration: self.state = 'immune' self.adjust_course() self.prepared_point = self.future_position() #simple bounce at limits when out of bounds self.vector = do_bounce_vector(self.prepared_point, self.vector) def set_frame(self): self.point = Rhino.Geometry.Point3d(self.prepared_point) self.color = self.color_dict[self.state] # utilities def get_random_point(): x = -100 + random.random()*200 y = -100 + random.random()*200 return Rhino.Geometry.Point3d(x,y,0) def get_random_vector(): x = (-0.5+random.random()) y = (-0.5+random.random()) vector = Rhino.Geometry.Vector3d(x,y,0) vector.Unitize() return vector def get_random_speed(): base_speed = 2 speed_factor = 5 random_speed = random.random() return (base_speed + random_speed)/speed_factor def do_bounce_vector(point,vector): if not -100 < point.X < 100 : vector.X = -vector.X if not -100 < point.Y < 100 : vector.Y = -vector.Y return vector #runner def do_run(): rs.EnableRedraw(False) people = [] total = 100 for i in range(total): pt = get_random_point() vec = get_random_vector() spd = get_random_speed() new_person = Person(pt,vec,spd) people.append(new_person) # we add the population to each individual # this allows for each individual to 'see' the others for person in people: person.add_others(people) # we now have 100 random people # we infect 1 of them people[0].state = 'contaminated' #lets make them move for 300 frames #a colorized pointcloud to visualize them point_cloud = Rhino.Geometry.PointCloud() _ = [point_cloud.Add(person.point,person.color) for person in people] cloud_id = sc.doc.Objects.AddPointCloud(point_cloud) frames = 1500 for i in range(frames): #use a generator to let all people caluculate their next frame _ = [person.prepare_frame() for person in people] #use a generator to set the prepared state as the new state _ = [person.set_frame() for person in people] #use a generator to fill the new pointcloud point_cloud = Rhino.Geometry.PointCloud() _ = [point_cloud.Add(person.point,person.color) for person in people] #replace the old pountcloud geometry with the new one sc.doc.Objects.Replace(cloud_id, point_cloud) #update the viewports rs.Redraw() rs.DeleteObject(cloud_id) rs.EnableRedraw(True) if( __name__ == '__main__' ): do_run()
Posts: 3
Participants: 2
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Eto forms resolution
@onlyforpeace wrote:
Hi,
I made an eto form to fill the DocumentUserText,
but now I want to finalize it at home, but my workstation at the factory has a resolution of 2560 x 1600 or something like that, but at home, I have a small YOGA lenovo, with a resolution of 1360 x 760 … so when I run the script, the form doesn’t fit on my screen, so I don’t see the Validate button …
how can i return the screen resolution ( i foundrs.screensize()), and if it’s not enough, how can i put a cursor on my form?
Posts: 1
Participants: 1
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Python add IsSubD
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Extract the axis of extrusion of the profiles (I-beam,C-beam..)
@msgatrong wrote:
Hello,
fiding_axe_extrusion.3dm (1.2 MB)
I am looking for a script which allows to extract the axis of extrusion of the column or beam as profiles (I beam, H beam, C beam …) or the cross-section center line/curve of the objects given in the attached file.In fact I have a 3D model with a lot of beam and column as profile, I have to build a simple EF model which constitutes only the cross-section center line/curve of these profiles.
How can ı do it by rhino script?
Thanks
Posts: 3
Participants: 2
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Get Volume Centroid without creating the point
@eric.bunn wrote:
Hi,
I’m trying to pull the volume centroid of polysurface using the code below and I get the following error: “Message: getset_descriptor is not callable”. Can anyone explain what I am doing wrong. I only want the coordinates and not the physical point (the Rhino Command creates a physical point). Yes I know I can get the bounding box and calculate it myself. If I can do it in less code that would be better for me.
Thanks,
Eric
import Rhino
import rhinoscriptsyntax as rsobj = rs.GetObject(“Select”,0)
pt = Rhino.Geometry.VolumeMassProperties.Centroid(obj)
print(pt)
Posts: 4
Participants: 3
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Copy nested blocks in place -- python
@Rickson wrote:
i’m trying to copy out the nested blocks but having trouble getting them back in their instance locations, they go back to 0. Do i need to create a plane at their instance origin and do plane to plane transformation? It seems to hold some sort of relation to the Top Level Block.
My attempts so far.
import rhinoscriptsyntax as rs import Rhino #Select Block #Get all instances of block #Explode and get 1st level nested blocks #place instance of said block at its locations selBlks = rs.GetObjects("Select Blocks", 4096) blkcpy = [] for blk in selBlks: name = rs.BlockInstanceName(blk) allBlks = rs.BlockInstances(name) for bk in allBlks: blkObjs = rs.BlockObjects(rs.BlockInstanceName(allBlks[0])) for blkblk in blkObjs: if rs.IsBlockInstance(blkblk): blkcpy.append(blkblk) rs.CopyObjects(blkcpy) print blkcpyimport rhinoscriptsyntax as rs import Rhino #Select Block #Get all instances of block #Explode and get 1st level nested blocks #place instance of said block at its locations selBlks = rs.GetObjects("Select Blocks", 4096) for blk in selBlks: name = rs.BlockInstanceName(blk) allBlks = rs.BlockInstances(name) for bk in allBlks: blkObjs = rs.BlockObjects(rs.BlockInstanceName(allBlks[0])) bkx = rs.BlockInstanceXform(bk) for blkblk in blkObjs: if rs.IsBlockInstance(blkblk): xform = rs.BlockInstanceXform(blkblk) bname = rs.BlockInstanceName(blkblk) #needs transformation of bkx to xform #insrtbk = rs.InsertBlock2(bname, bkx)
Posts: 3
Participants: 2
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VectorAngle() returns 0 instead of 90
@Bogdan_Chipara wrote:
Hi,
I don’t understand why VectorAngle returns 0 in this situation.
I’m trying to calculate the angle between U of the first surface and U of the second. Should be 90 degrees.Maybe i’m doing something wrong? I attached the script and rhinofile.
Thank you!
vectorangle.3dm (78.0 KB) vectorangle.py (678 Bytes)
Posts: 3
Participants: 2
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AddSweep1: closed option don't work
@seghierkhaled wrote:
Hello, i try this code but closed option don’t work
Help on function AddSweep1 in module rhinoscript.surface: | AddSweep1(rail, shapes, closed=False) | Adds a surface created through profile curves that define the surface | shape and one curve that defines a surface edge. | Parameters: | rail (guid): identifier of the rail curve | shapes ([guid, ...]): one or more cross section shape curves | closed (bool, optional): If True, then create a closed surface
Posts: 3
Participants: 2
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Cannot call geometry properties in object variables in Rhino Python
@raylee14 wrote:
Hi everyone,
I have created some class objects with some geometries property insides
However, when I pass those objects to other python components, I found that the geometries cannot be called (but other properties like numbers are fine)The following is the error message:
Runtime error (NullReferenceException): Object reference not set to an instance of an object.Traceback (most recent call last):
SystemError: Object reference not set to an instance of an object.
Posts: 1
Participants: 1
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Why call main() with this conditional?
@gwil wrote:
So here is a snippet of code:
def main():
counter = 0
#collect data
GUIDs = rs.GetObjects(‘select objects’)
#call my system class
obj01 = MySystemClass(GUIDs, counter)if (name == “main”):
main()Does anyone know why I would use the second from last line conditional to call the main() function? Does this have something to do with me setting up my own code as a module and potentially having to call it to run from outside itself?
Thanks!!
g.
Posts: 2
Participants: 2
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Is it possible to write a Python script to realize the function of path mapper? for exampe {a} -> {a + 66}
@w.wu wrote:
Hi everyone,
The path mapper is a powerful function to change the data tree path, however, if I want to realize it using a Python script, how should I do?
Thanks!
Posts: 1
Participants: 1
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Work around for DetailNames - NOT IMPLEMENTED IN PYTHON YET
@eric.bunn wrote:
Is there another way to accomplish this using Python other than DetailNames. Not in 5 or 6 that I can find for Python.
Eric
Posts: 1
Participants: 1
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GetDetailViews
@eric.bunn wrote:
I found a help topic for this method in Rhino 5 but can’t seem to access the method in the python editor. Can anyone help with this.
Eric
Posts: 4
Participants: 2
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Calculating area moments of inertia in Rhinoscript (now with files)
@pim_meester wrote:
Hi!
I’m not getting the same calculation results on my script that uses Rhino.SurfaceAreaMoments and Analyze > Mass Properties > Area Moments. I need the moments of inertia about the centroid coordinate axes. I’ve calculated the moments of inertia by hand and I’m sure that my code result is wrong haha. Does anyone see what I’m missing?
My code looks like this:
surfaces = Rhino.SelectedObjects If IsArray(surfaces) Then For Each surface In surfaces inertias = Rhino.SurfaceAreaMoments(surface) If IsArray(inertias) Then Rhino.Print Rhino.Pt2Str(inertias(10), 0) End If Next End IfI’ve attached a Rhino file with the surfaces and a pdf with my calculation. The text is in Dutch but the numbers and calculations are clear.
Thanks in advance!
Rhino Testmodel 0 meting.3dm (119.8 KB) Calculation moments of inertia about centrooid axes.pdf (252.5 KB)
Posts: 5
Participants: 2
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Time zone : How?
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Close Detail View after Activating
@eric.bunn wrote:
(topic withdrawn by author, will be automatically deleted in 24 hours unless flagged)
Posts: 1
Participants: 1
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