I Need to create a line at the point which measures minimum distance between 2 splines;
So i have choose to use measureDistance builder in measureDistanceBuilder1.AnnotationMode = NXOpen.MeasureBuilder.AnnotationType.CreateLine;
But how do i get the points to create a line at minimum distance?
Solved! Go to Solution.
I had a quick look at the documentation for the measureDistanceBuilder object. The point information is probably buried somewhere within its properties, but it sure wasn't obvious where.
You could make use of one of the AskMinimumDist functions (UF.Modl. AskMinimumDist, .AskMinimumDist2, or .AskMinimumDist3); these functions readily give up the "point on object" information.
It's easy using the SNAP ClosestPoints function
Dim s1 = <some spline> Dim s2 = <some other spline> Dim result As Snap.Compute.DistanceResult = Snap.Compute.ClosestPoints(s1, s2) Dim p1 As Position = result.Point1 Dim p2 As Position = result.Point2 Snap.Create.Line(p1, p2)
Without SNAP, the easiest approach is to use NXOpen.UF.Modl.AskMinimumDist3, as Cowski suggested:
Dim ufs As NXOpen.UF.UFSession = NXOpen.UF.UFSession.GetUFSession Dim workPart As NXOpen.Part = NXOpen.Session.GetSession.Parts.Work Dim s1 As NXOpen.Spline = <some spline> Dim s2 As NXOpen.Spline = <some other spline> Dim opt = 2 Dim noGuess As Integer = 0 Dim guessPt As Double() = Nothing Dim dist As Double Dim p1(2) As double Dim p2(2) As Double Dim accuracy As Double ufs.Modl.AskMinimumDist3(opt, s1.Tag, s2.Tag, noGuess, guessPt, noGuess, guessPt, dist, p1, p2, accuracy) Dim pt1 As New NXOpen.Point3d(p1(0), p1(1), p1(2)) Dim pt2 As New NXOpen.Point3d(p2(0), p2(1), p2(2)) workPart.Curves.CreateLine(pt1, pt2)
If I need to get the point based on a projection vector? I'm using NXopen and NX12.0. Looking forward for your suggestions.
> I need to get the point based on a projection vector
What point? I thought you were trying to construct a line.
What do you mean by "based on"? Do you mean that you want your line to be parallel to some given vector? If so, I can't think of any built-in function that will give you this.