How to smooth lines using Inventor API?

[Anonymous]

Hello. I'm writing my primitive add-in for Inventor using the Inventor API and C#. I'm interested in the question, how  smooth the joints, where the lines are connected on a sketch, because when i use extruding, it does not look very aesthetically. Thanks for any help.

[Xun.Zhang]

Hello,

Is your smooth the same as tangent with each other such as make a sketch constraint and G1 or G2 tangent to the start point or end point, if so, how about below sample code?

Please refer to API toturial with charper "Sketch Constraints".

Add tangent constraints to the two lines that join to both ends of the arc.


Call oSketch.GeometricConstraints.AddTangent(oLine(5), oArc)
Call oSketch.GeometricConstraints.AddTangent(oLine(6), oArc)
oApp.ActiveView.Update

Thanks!

[Anonymous]

Thanks for your help. But i think that GeometricConstraints.AddSmooth() method is what i need. I have another queshtion. Inputs for this method - two Entities. I have just massive of lines. If you know, how best to use this method with lines. My code is:

 Point2d [] oCoord= new Point2d [n];
            SketchPoint[] oPoint = new SketchPoint[n];

            for (int i = 0; i < n; i++)
            {
                oCoord[i] = oTG.CreatePoint2d(rx[i], ry[i]);              
            }

            SketchLine[] oLines = new SketchLine[n];

            
            for (int i = 0; i < n; i += krok)
            {
                oPoint[i] = oSketch.SketchPoints.Add(oCoord[i], true);
            }
            int nn = n - (n % 10);
            
            int k = 0;
            for (int i = 0; i < n; i+=10)
            {
                if (i==0) oLines[k]= oSketch.SketchLines.AddByTwoPoints(oCoord[i], oCoord[i + 1]);
                else if (i == nn) oLines[k] = oSketch.SketchLines.AddByTwoPoints(oLines[k - 1].EndSketchPoint, oLines[0].StartSketchPoint);
                else oLines[k] = oSketch.SketchLines.AddByTwoPoints(oLines[k-1].EndSketchPoint, oCoord[i]);
                k++;
            }