Create a List of List - from Point Coordinates

Civil 3D
1

i have a list of coordinates that represent a starting point for a new geometry. The represents the new geometry (rectangle), that i want to create a poly line from.
P0 = Start point; P1-P4 creates the corners for each point P0.
i am getting a Null result, can anyone help me with this.

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2

I don’t think that Contact isn’t a method which can be used like that in design script. A syntax like this might work: List.Join([existingList, newPoint1, newPoint2, newPoint3, newPoint4]);

That said: imperative is not needed here. Instead of an imperative code block, try the standard associative.

Or better still:

  1. Draw your rectangle once at the origin (Rectangle.ByWidthLength node)
  2. Generate a coordinate system at each point (CoordinateSystem.ByOrigin node)
  3. Transform the rectangle by each coordinate system (Geometry.Transform node).
2 Likes
3

Rectangle.ByCornerPoints already requires 4 separate inputs so you can just create your list of 4 separate corner points in an associative block like Jacob mentioned. It’s way shorter and easier.

That being said, the reason you’re getting nulls currently is because PNTS..Count isn’t a thing. You seem to be combining the syntax of a shorthand sequence and the list count:
0..(List.Count(PNTS)-1)

1 Like
4

Thanks, i got it to work.

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