convert nurbscurve to ellipse

i am doing an execise that is convert the old version script into the GH 0.7

here is the original script

i try my best ,but still cannot convert the nurbscurves into ellipse

here is my script

Private Sub RunScript(ByVal x As Object, ByVal y As Object, ByVal z As Object, ByRef A As Object, ByRef B As Object)

Dim c_list As New list(Of nurbscurve)

Dim P_list As New list(Of Point3d)

For i As int32 = 0 To z

Dim c As New Ellipse(plane.WorldXY, i / 2, i)

Dim g As New NurbsCurve(c.ToNurbsCurve)

g.rotate(y * i, New vector3d(0, 1, 0), New point3d(x, 0, 0))

c_list.add(g)

Dim e As New BoundingBox

e = g.getboundingbox(False)

p_list.add(e.Center)

Dim polyline As New polyline(p_list)

a = c_list

b = polyline

End Sub

To do the same thing is more easy in the old version

because i can't get the center of an ellipse directly

how can i do ???

thanks

ceason

Replies to This Discussion

Permalink Reply by David Rutten on October 9, 2010 at 1:32pm

Dim c_list As New list(Of NurbsCurve)

Dim P_list As New list(Of Point3d)



For i As Int32 = 0 To z

   Dim c As New Ellipse(plane.WorldXY, i / 2, i)

   Dim g As NurbsCurve = c.ToNurbsCurve()



   g.Rotate(y * i, Vector3d.YAxis, New Point3d(x, 0, 0))



   c_list.Add(g)

   p_list.Add(g.GetBoundingBox(True).Center)

Next



A = c_list

B = New polyline(p_list)

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by David Rutten on October 9, 2010 at 1:33pm

Ah, you probably meant this:

p_list.Add(c.Plane.Origin)

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by David Rutten on October 9, 2010 at 1:46pm

Better yet:



Dim c_list As New list(Of Ellipse)

Dim P_list As New list(Of Point3d)



For i As Int32 = 0 To z

   Dim p As Plane = Plane.WorldXY

   p.Rotate(y * i, Vector3d.YAxis, New Point3d(x, 0, 0))



   c_list.Add(New Ellipse(p, i / 2, i))

   p_list.Add(p.Origin)

Next



A = c_list

B = New polyline(p_list)

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Ceason on October 9, 2010 at 9:44pm

thanks, David
i had spent a lot time on this question.
before your answering , i never have a idea of (ellipse.plane.origin)
the syntax have a bit of change between the old and new GH .
UM~

ceason

Permalink Reply by David Rutten on October 10, 2010 at 4:07am

Yes, the new SDK has been lovingly hand-crafted by the friendly, indigenous people of Washingtonia and Slovakia. The old SDK was written by a collection of python scripts that ate C++ code and spat out C++/CLI wrappers.

We wanted to create something that makes sense given the context of .NET, a lot of things are very different indeed.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Ceason on October 12, 2010 at 4:03am

yes, i can find out the new syntax is more easy to know and handle than the old one
this is a very great change for us .

ceason

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