Rhino.Geometry.Intersect.Intersection.CurveCurve

Hi,

Trying to understand SDK:)

definition:

Public Shared Function CurveCurve ( _
  curveA As Curve, _
  curveB As Curve, _
  tolerance As Double, _
 overlapTolerance As Double _
) As CurveIntersections

What kind of data is  CurveIntersections?
How can we use it?

Thanks to help!

Replies to This Discussion

Permalink Reply by Giulio Piacentino on January 21, 2011 at 9:21am

Hi RG,

CurveIntersections is a sort of collection containing IntersectionEvents.

You can follow the link you posted: CurveIntersections, then go to CurveIntersections Members. This shows that it is possible to index this class -- for example retrieve Item(0) -- as long as the index is less than Count. Each element we retrieve by indexing is an IntersectionEvent, that contains these members.

- Giulio
_______________

giulio@mcneel.com

McNeel Europe, Barcelona

Permalink Reply by Eirik K on January 30, 2011 at 3:43am

Here's an example of code I use to get interection points of boxes along a line; a new box is created where the last one intersects:



// get the corners of the last box

Point3d[] boxCorners = element.GetCorners();

Point3d cuttingA = boxCorners [2];

Point3d cuttingB = boxCorners [3];



// create a line where the far box edge intersects my curve (it is extended to be sure it cuts the line)

LineCurve cuttingLine = new LineCurve(cuttingA, cuttingB);

boxEdgeExtended = cuttingLine.Extend(CurveEnd.Both, 10, CurveExtensionStyle.Line);





// calculate the intersection point

intersections = Rhino.Geometry.Intersect.Intersection.CurveCurve(curve, boxEdgeExtended, RhinoMath.SqrtEpsilon, RhinoMath.SqrtEpsilon);



// set the interection point as the start of the box

startPt = intersections[0].PointA;



.....