Hi,
I am trying to do list operations in Python, however it keeps giving me errors. So, I downloaded the MathNet.Numerics on my desk top, but I have no idea how to install/import the package in Python. So, please if you have any suggestions please let me know. Thanks!
I found this resource on GH forum… as both use IronPython you may have a go
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The Grasshopper link helped, Thank you very much!
Hi @Emad_R I will be very interested to see some examples of use MathNet.Numerics with Dynamo project… so please share once you complete your task.
Will do, Thanks again!
I just tried one of the examples. It works in the IronPython console but not in Dynamo.
Ideas?
Hi,
That’s the same problem I’m having, unfortunately I didn’t resolve it yet.
There is a Dynamo package, “DynamoMathematica”, if you want to give it a try. I looked for examples using the package, but again with no success, I couldn’t find any. If you find any solution or examples for both Python or the package, please let me know. Sorry for not being of much help.
@ricardo Thanks a lot for sharing. it works!!
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I’ve made some improvements so that the code accepts the vectors of the new base and the vector to get the coordinates relative to that base
import sys
sys.path.append("C:\Program Files (x86)\IronPython 2.7\Lib")
import os
import clr
# Import Dynamo Geometry Nodes
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
# Import Math.NET library
from clr import AddReferenceToFileAndPath as addref
location = os.path.join(os.path.expanduser("~"),
'D:\\Dropbox\\Dynamo Workspaces\\Nuget\MathNet.Numerics.4.5.1\\lib\\net40\\MathNet.Numerics.dll')
addref(location)
import MathNet.Numerics.LinearAlgebra as la
from System import Array as sys_array
def array(*x):
return sys_array[float](x) #float is equivalent to .Net double
newBaseVectors = IN[0]
newX = newBaseVectors[0]
newY = newBaseVectors[1]
newZ = newBaseVectors[2]
# Vector to get relative coordinates
vectorCoordinates = IN[1]
# Coordinates of V relative to World
Vx = vectorCoordinates.X
Vy = vectorCoordinates.Y
Vz = vectorCoordinates.Z
A = la.Double.Matrix.Build.DenseOfRowArrays(array(newX.X, newX.Y, newX.Z),array(newY.X,newY.Y,newY.Z),array(newZ.X,newZ.Y,newZ.Z))
B = la.Double.Vector.Build.DenseOfArray(array(Vx, Vy, Vz))
x = A.Solve(B)
OUT = xBut I got a strange result.
When I ask Dynamo to generate the point with the coordinates relative to the new base, the point appears elsewhere. When was it to appear in the same place.
What am I missing?
