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install sympy in Rhinoceros 5.0

ger — Thu, 13 Jun 2013 10:04:08 GMT

Hi there,

I am trying to make sympy run in rhinoceros 5. I downloaded sympy 0.7.2 and I installed it in Python 2.7. As for numpy I created two additional directories in Python Editor options as follow:

Quote:

C:\Python27\Lib\site-packages
C:\Python27\DLLs

Then in the beginning of my script, I importing sympy as follow:

Quote:

import sys
sys.path.append("C:\Python27\Lib\site-packages\sympy")
sys.path.append("C:\Python27\Lib\site-packages\sympy\logic")
import sympy

I tried installing the sympy library in IronPython as well with the corresponding settings, however, I get the following warning:

Quote:

Message: unsupported operand type(s) for +: 'NoneType' and 'NoneType'

Does anybody know how to make it work?

Thanks a lot in advance,

Ger

Problem with extract surfaces from polysurface, i need help.

vittorio — Wed, 12 Jun 2013 19:16:27 GMT

Hi all

Python Code:

import Rhino

import scriptcontext

import rhinoscriptsyntax as rs

def DuplicateSrf(str):

rc,surfacesref=Rhino.Input.RhinoGet.GetMultipleObjects(str,True, Rhino.DocObjects.ObjectType.Surface)

if rc!=Rhino.Commands.Result.Success: return

#listasup = surfaceref.Surface()

if surfacesref:

superfici=[]

for sup in surfacesref:

surf=sup.Surface()

brep=surf.ToBrep()

superficie=scriptcontext.doc.Objects.AddBrep(brep)

print superficie

superfici.append(superficie)

#scriptcontext.doc.Objects.UnselectAll()

scriptcontext.doc.Views.Redraw()

return superfici

if __name__=='__main__':

superfici=DuplicateSrf("seleziona superfici da duplicare < Enter for exit>")

print superfici

rs.SelectObjects(superfici)

The attached script should extract some surface of the Polysurface, but I always get untrimmed surfaces.

Ciao Vittorio

Attached Files

Duplicate_Surface.3dm (60.5 KB)

Create 3dm File from scratch

Powerpp — Wed, 12 Jun 2013 15:15:45 GMT

Hi all,

I am trying to save and read directly to 3dm-Files.
I found out how to read geometry out from an existing 3dm-File:

Code:

def load_pclouds_from3dm(path):

    file_3dm = rc.FileIO.File3dm.Read(path)

    objects_table = file_3dm.Objects

    for object in objects_table:

        #if pointcloud(?):

        pc_Id = scriptcontext.doc.Objects.AddPointCloud(object.Geometry)

But i stuck trying to create 3dm-Files containing specific Geometry.
I think i can save the whole document with:

Code:

options = rc.FileIO.FileWriteOptions()

succes = scriptcontext.doc.WriteFile(path, options)

But i just want to write specific geometry (mainly pointclouds) to different 3dm files.
How can i create such a 3dm File that has nothing to do with the active document and save data into it?

Thanks a lot in advance!
Philip

a easier loop quesion?

Carcassi — Tue, 11 Jun 2013 13:10:36 GMT

Python Code:

import random

L=[];x=0

while x<2: #'2' can be changed.

L1=[17,24,18]

L2=[] # L2 would replace the L1 in next loop

for i in range(len(L1)):

if L1[i]%2==1:

L2.append(L1[i]/2-0.5)

L2.append(L1[i]/2+0.5)

else:

L2.append(L1[i]/2)

L2.append(L1[i]/2) # get the L2=[8,9,12,12,9,9]

x+=1 #i dont know how to replace L2 to L1,make a new loop

print(L) #get the new list[4,4,4,5,6,6,6,6,4,5,4,5]

#finally ,L.append(all lists)

#L=[[17,24,18],[8,9,12,12,9,9],[4,4,4,5,6,6,6,6,4,5,4,5]..so on...]

-Carcassi

unload .net dll

Goswin — Mon, 10 Jun 2013 15:42:50 GMT

Hi Steve,
For testing I am loading my .net dll from Visual Studio with the "clr.AddReferenceToFileAndPath" function into Ironpython. do you know if there is also a way to unload it other than closing Rhino? "Reset Script Engine" does not work for me. I cannot recompile the dll while it is loaded in Rhino.

thanks Goswin

the loop problem?

Carcassi — Mon, 10 Jun 2013 12:54:40 GMT

Python Code:

import Rhino.Geometry as rg

import math

L=[];x=0

while len(distance)>x:

for y in range(len(distance)): #distane is a input list

L1=[polyline] #list L1 is replaced by '20 line'.

for i in range(len(L1)):

line=rg.Polyline.GetSegments(L1[i])

for j in line:

startpt=rg.Line.PointAt(j,0)

midpt=rg.Line.PointAt(j,0.5)

endpt=rg.Line.PointAt(j,1)

vector=startpt-endpt

rg.Vector3d.Rotate(vector,math.pi*0.5,rg.Vector3d(0,0,1))

rg.Vector3d.Unitize(vector)

midpt1=midpt+vector*distance[y]

polyline1=rg.Polyline([startpt,midpt1,endpt])

L1.append(polyline1) #L1 may be [polyline,polyline1,polyline2,polyline3]

del L1[0:len(L1)] #i wanna delete the first(the 'first' equals the L1 length) item in L1,and replace L1 by 'line 7',then do loop

L.append(L1) #L may be like this [[polyline],[1,2,3],[a,b,c,d,e,f].....],'1,2,3....e,f' is polyline name

x+=1

print(L)

-Carcassi

Attached Images

dd.jpg (91.1 KB)

Replace all buggy...

Mitch — Mon, 10 Jun 2013 10:36:30 GMT

Parentheses seem to upset it... Try replacing all instances of len(objs) with something like "n" in the following... Only replaces the first, you have to manually hit find/replace/find/replace.... etc.
--Mitch

python Code:

a=len(objs)

b=len(objs)

c=len(objs)

d=len(objs)

e=len(objs)

f=len(objs)

RhinoCommon MorphControl...

Mitch — Sat, 08 Jun 2013 22:07:17 GMT

Hi,
In looking at a possibility of doing what the Rhino command Flow does (not implemented in rhinoscriptsyntax yet), I discovered the MorphControl class which has a from curve - to curve structure, so I thought it might be the basis for Flow. While I did get it to partially sorta work after playing a bit, I don't really understand how it is supposed to work...

python Code:

import rhinoscriptsyntax as rs

import Rhino

import scriptcontext as sc

toFlow=rs.GetObject("Select object to flow")

baseCrv=rs.GetObject("Select base curve",4)

targCrv=rs.GetObject("Select target curve",4)

baseCrv=rs.coercecurve(baseCrv)

baseCrv=baseCrv.ToNurbsCurve()

targCrv=rs.coercecurve(targCrv)

targCrv=targCrv.ToNurbsCurve()

geom=rs.coercebrep(toFlow)

mmm=Rhino.Geometry.MorphControl(baseCrv,targCrv)

mmm.Morph(geom)

sc.doc.Objects.AddBrep(geom)

sc.doc.Views.Redraw()

While that does actually do something, even if the base curve is the same length as the target curve, the flow only goes about half way along the target curve. Flowing from one circle to another also gives "interesting" results...

So, was just wondering how to use this stuff...
--Mitch

Implementation request: rs.ExtrudeSurface

Mitch — Sat, 08 Jun 2013 21:38:38 GMT

...as the title says...
--Mitch

how move a point along a vector?

Carcassi — Sat, 08 Jun 2013 12:18:47 GMT

Python Code:

import Rhino as r

import math

L=[]

linesseg=r.Geometry.Polyline.GetSegments(polyline)

for line in linesseg:

startpt=r.Geometry.Line.PointAt(line,0)

Zstartpt=r.Geometry.Point3d(startpt[0],startpt[1],5)

Zvector=Zstartpt-startpt

endpt=r.Geometry.Line.PointAt(line,1)

vector=endpt-startpt

vector1=r.Geometry.Vector3d.Rotate(vector,math.radians(90),Zvector)

midpt=r.Geometry.Line.PointAt(line,0.5)

r.Geometry.Transform()

# i wanna move the midpt alone the vector1, i couldnt find the related method.

#Thank you

how convert line to curve?

Carcassi — Sat, 08 Jun 2013 08:32:04 GMT

Python Code:

import Rhino as r

L=[]

linesseg=r.Geometry.Polyline.GetSegments(polyline)

for line in linesseg:

#curve=r.Geometry.Curve.ToNurbsCurve(line)

#print(curve)

midpt=r.Geometry.Line.PointAt(line,0.5)

closestpt=r.Geometry.Curve.ClosestPoint(line,midpt)

#print(closestpt)

#L.append(closestpt)

-Carcassi

Attached Images

aa.jpg (72.1 KB)

how to explode a polyline?

Carcassi — Fri, 07 Jun 2013 13:37:37 GMT

Python Code:

import Rhino as r

explodecurve=r.Geometry.PolyCurve.Explode(curve)

print(explodecurve)

this method ask a 'polycurve',what i input is polyline,how to solve?
Thanks
-Carcassi

Attached Images

bb.jpg (27.8 KB)

rs.command("_ExtrudeCrv")

ger — Wed, 05 Jun 2013 16:07:58 GMT

Hi there,

I am generating a parametrized structure and I want to script the ExtrudeCrv with rs.command. I know that rs.ExtrudeCrv is available in rhinoscriptcontex, however, I cannot create a solid with this command. So, I am trying to script this command as follows:

objs_ = rs.LastCreatedObjects()

for obj in objs_:
dist = 0.0405
#this will script the command _extrudecrv
rs.Command(' _ExtrudeCrv ' +str(rs.coerceguid(obj))+" _BothSides=Yes _Solid=Yes _DeleteInput=Yes "+str(dist)+"_Enter _Enter" , echo=True)

the above bit of code works for me, the only problem is that I cannot take the desired extrusion distance. Could you please tell me what am I doing wrong?

Thanks a lot in advance.

F# anyone?

Goswin — Wed, 05 Jun 2013 07:53:25 GMT

Hi All,
There is a prototype for an F# scripting editor in Rhino by Matt Moloney
http://tsunami.io/media.html#pane-4
have you tried it ?

why use F# ?

do loop using 'while' or 'for' question

Carcassi — Wed, 05 Jun 2013 06:43:36 GMT

i wanna loop a polyline until its area less than a number i make.I dont know how to do.

Python Code:

import Rhino as r

compute=r.Geometry.AreaMassProperties.Compute(curve);L=[]

curvearea=compute.Area

center=compute.Centroid

center1=r.Geometry.Point3d(center[0],center[1],5)

vector=center1-center

plane=r.Geometry.Plane(center,vector)

scale=r.Geometry.Transform.Scale(plane,0.9,0.9,0.9)

while curvearea>areanumber:

#i dont know how to write

#Thank you.

Thank you
-Carcassi

Attached Images

bb.jpg (45.8 KB)