Tag: offset

How to offset a curve in Grasshopper using the C# component

An example offset curve in Grasshopper
How to generate an offset curve in Grasshopper using only C#, either in the C# component or with Visual Studio:

NurbsCurve crv = new NurbsCurve(inputCurve.ToNurbsCurve()); //input curve to use as offset base
Point3d origin = new Point3d(0, 0, 0);
Vector3d vectxy = new Vector3d(0, 0, 1);
Plane xy = new Plane(origin, vectxy);
Curve[] crv4 = crv.Offset(xy, 1, 0.01, 0); //Get the offset curve array
NurbsCurve[] crv3 = new NurbsCurve[crv4.Count()]; //Make a new array with the size of crv4.count
for (int x = 0; x < crv4.Count(); x++)
{
    //Loop through the Curve[]
    crv3[x] = new NurbsCurve(crv4[x].ToNurbsCurve()); //Convert each Curve into a NurbyCurvey
}

Note that the offset function returns as a Curve[], and that the ToNurbsCurve() method can’t be used directly with arrays. The above code attempts to get around these limitations.