extract box corners with GetCorners()

Replies to This Discussion

Permalink Reply by David Rutten on November 22, 2010 at 12:13pm

Point3d[] corners = box.GetCorners();


Though from your naming I assume you actually have a collection of boxes? If that's the case, do you want all corners of all boxes inside a single array?

--
David Rutten
david@mcneel.com
Seattle, WA

Permalink Reply by Miguel Vidal on November 22, 2010 at 12:46pm

Hi, David. Yes, in fact, I´d like to have each set of corners in different arrays.

Thanks!

Permalink Reply by David Rutten on November 22, 2010 at 1:54pm

Ok, then you need to have a data structure that actually supports multiple lists of point arrays. Something like this:

List<Point3d[]> corners = new List<Point3d[]>();
foreach (Box box in boxes)
{
    corners.Add(box.GetCorners());
}

--
David Rutten
david@mcneel.com
Seattle, WA

Permalink Reply by Miguel Vidal on November 22, 2010 at 2:18pm

Thank you!
:-)

Permalink Reply by Giulio Piacentino on November 22, 2010 at 3:44pm

Hi Miguel,
you could also do it a bit more similarly to the way you started. (So, this is an alternative with an array of arrays, or jagged array):

Point3d[][] corners = new Point3d[boxes.Count][];

for (int i = 0; i < boxes.Count; i++)
   corners[i] = boxes[i].GetCorners();
Ah, change "boxes.Count" to "boxes.Length" if boxes is an array.

- Giulio
______________
giulio@mcneel.com
McNeel Europe, Barcelona

Permalink Reply by Miguel Vidal on November 23, 2010 at 5:39am

Hi Giulio,

Thanks!

Permalink Reply by Jeff Niemasz on April 18, 2011 at 10:37am

Giulio,

could you post a vb version of this example. I can't find any examples of jagged arrays for the vb component on the site and the one (months and days of months) on the vb.net site give me a syntax error.

-Jeff

Permalink Reply by Giulio Piacentino on April 18, 2011 at 12:03pm

Hi Jeff,

this is the equivalent code from C# to Vb.Net

Dim corners As Point3d()() = New Point3d(boxes.Count - 1)(){}

For i As Integer = 0 To boxes.Count - 1
corners(i) = boxes(i).GetCorners()
Next

- Giulio
_______________
giulio@mcneel.com
McNeel Europe

Permalink Reply by Jeff Niemasz on April 18, 2011 at 6:58pm

Thanks Giulio

Permalink Reply by yujun chen on November 24, 2010 at 7:15am

box.GetCorners() returns all 8 corners.

Dim pts(8) As point3d
pts = box0.GetCorners()