IEnumerable again

[Helvetosaur]

Can someone remind me how to convert my Python list of parameters into an IEnumerable so that I can feed it to Curve.Split() ?

Curve.Split Method (IEnumerable(Double))

TIA

[AndersDeleuran]

You can use the .NET List class with float type, see the second example here:

Create Surface from Points in Rhino Python, Message: expected IEnumerable[Point3d], got list

There’s a lot going on there that I can’t really comment on (mac, rhinoscriptsyntax etc.). But, occasionally the underlying RhinoCommon method (i.e. this one) requires an explicit list type (i.e. a regular Python list won’t do). In this case of type Point3d. When this happens I usually just wrap my Python list in a Point3dList. Something like this: import Rhino as rc ptsPyList = [rc.Geometry.Point3d(0,0,0),rc.Geometry.Point3d(1,2,3)] ptsList3d = rc.Collections.Point3dList(pts) Also, welcome t…

Edit 1: Although Curve.Split should work with a Python tuple or list as I recall

Edit 2: Indeed, a normal Python tuple works:

230330_SplitCurve_00.gh (4.5 KB)

[farouk.serragedine]

An alternative solution that should be faster (if computation time is critical) could be :

curve = Rhino.Geometry.LineCurve(Rhino.Geometry.Point3d(0, 0, 0), Rhino.Geometry.Point3d(10, 10, 0))
parameters = [1.0, 2.0, 3.0]
# Convert the list of parameters to an IEnumerable of doubles
parameters_ienumerable = System.Array[float](parameters)
split_curves = curve.Split(parameters_ienumerable)
Rhino.RhinoDoc.ActiveDoc.Objects.AddCurve(curve)
for split_curve in split_curves:
    Rhino.RhinoDoc.ActiveDoc.Objects.AddCurve(split_curve)
Rhino.RhinoDoc.ActiveDoc.Views.Redraw()

Since It’s IronPython which is based on .NET you can use

System.Array[type](variables)

[Helvetosaur]

@AndersDeleuran

Although Curve.Split should work with a Python tuple or list as I recall

Yes, that was my recollection too, but it wasn’t working… However, I found my mistake, now it is…

@farouk.serragedine

parameters_ienumerable = System.Array[float](parameters)

Thanks, that’s also useful for the future!

Sorry for the bad info!