Find intersection point between curves using CPython3

[SONA-ARCHITECTURE]

Hi, with ItonPython2.7, I've got no error with this line declaration

results = clr.Reference[IntersectionResultArray]()

I can get my point coordinates

In CPython3, I try

results =  IntersectionResultArray()
setCompResult = curve1.Intersect(curve2, results)  

I've got no error but result is empty

Do you know why?

I saw this for Rhino but does not work for me...
https://discourse.pyrevitlabs.io/t/pyrevit-cpython-python-3-equivalent-of-the-ironpython-python-2-im...

[jeremy_tammik]

No idea. Remember that this forum is for the Revit API, not for obscure Python related .NET wrapping issues. They will probably be answered better elsewhere. I would assume that you need some clr wrapper or conversion for CPython3 as well, just like you do for IronPython (or are you using ItonPython, as your question states? (Is that a typo?)).

[SONA-ARCHITECTURE]

Hi jeremy,
hope you fill fine!
Yes, sorry, I know that this is for Revit API C#, but I founded a post about this subject in Python and thought it was possible here..Sorry
I've got a client who asked me a Python script to get intersection point of two curves from grid and I can't get works the interesct function of curve with Cpython3...

[SONA-ARCHITECTURE]

I found this : https://github.com/DynamoDS/Dynamo/wiki/Work-in-progress-to-improve-Python-3-support#parameters-usin...

Maybe it's not planed

[SONA-ARCHITECTURE · Accepted solution]

I founded the solution here : https://forum.dynamobim.com/t/bounding-box-at-grid-curve-intersections/95989/8?u=sona_architecture

So, the correct code is :

if pyEngineName == "ironpython":

            intersectResultArray = clr.Reference[IntersectionResultArray]()

            result = curve_1.Intersect(curve_2, intersectResultArray)

            if result == DB.SetComparisonResult.Overlap:

                interResult = intersectResultArray.Value

                point = interResult[0].XYZPoint

                DSpoint = point.ToPoint()

                intersection_points.append(DSpoint)  

        else:

            intersectResultArray = IntersectionResultArray()

            result, intersectResultArray = curve_1.Intersect(curve_2, intersectResultArray)

            if result == DB.SetComparisonResult.Overlap:

                point = intersectResultArray[0].XYZPoint

                DSpoint = point.ToPoint()

                intersection_points.append(DSpoint)