Partial Torus

[genelibardiDCZT4]

Does anyone have a c# method that will take a majorRaduis, minorRadius, and angle and create a solid that is a partial torus that is centered at the 0,0,0 and starts at angle = 0 and goes counter clockwise to "angle"? I have tried and failed using several different methods. Like sweeping a circle around an arc using Solid3d.CreateSweptSolid()

[ActivistInvestor]

Post your code that isn't working and someone can tell you what's wrong with it. 

Also keep in mind that solids created via the API do not have associativity with the objects used to create them. For example, if you created the partial torus using the sweep command, you can edit it using grips on both the path and profile, which isn't possible with solids created via the API. For that reason, some developers avoid using the API and instead create solids by issuing commands.

[genelibardiDCZT4]

Well, I fixed my own problem. Thanks!

[_gile]

Hi,

Here's a way using Solid3d.CreateRevolvedSolid:

public static Solid3d CreatePartialTorus(double majorRadius, double minorRadius, double angleOfRotation)
{
    if (majorRadius < minorRadius)
        throw new ArgumentException("Minor radius greater than major radius");

    while (angleOfRotation <= 0)
        angleOfRotation += Math.PI * 2.0;

    using Circle circle = new(new Point3d(majorRadius, 0.0, 0.0), Vector3d.YAxis, minorRadius);
    Solid3d torus = new();
    torus.CreateRevolvedSolid(circle, Point3d.Origin, Vector3d.ZAxis, angleOfRotation, 0.0, new RevolveOptions());
    return torus;
}

[genelibardiDCZT4 · Accepted solution]

Thank you! That is the solution I used. Cheers.