Get Parameters of Conical Surface Example (C#)

This example shows how to get the parameters of a conical surface.

//----------------------------------------------------------------------------
// Preconditions:
// 1. Open a model document with a conical surface.
// 2. Select the conical surface.
// 3. Open an Immediate window.
//
// Postconditions: Inspect the Immediate window.
//----------------------------------------------------------------------------
using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
namespace ConeParams2_CSharp.csproj
{
    partial class SolidWorksMacro
    {
 
        public void Main()
        {
            ModelDoc2 swModel = default(ModelDoc2);
            SelectionMgr swSelMgr = default(SelectionMgr);
            Face2 swFace = default(Face2);
            Surface swSurf = default(Surface);
            double[] vCone = null;
 
            swModel = (ModelDoc2)swApp.ActiveDoc;
            swSelMgr = (SelectionMgr)swModel.SelectionManager;
            swFace = (Face2)swSelMgr.GetSelectedObject6(1, -1);
            swSurf = (Surface)swFace.GetSurface();
 
            if (swSurf.IsCone())
            {
                vCone = (double[])swSurf.ConeParams2;
                Debug.Print("Origin               = (" + vCone[0] * 1000.0 + "mm, " + vCone[1] * 1000.0 + "mm, " + vCone[2] * 1000.0 + "mm)");
                Debug.Print("Axis                 = (" + vCone[3] + ", " + vCone[4] + ", " + vCone[5] + ")");
                Debug.Print("Radius               = " + vCone[6] * 1000.0 + " mm");
                // 1 radian = 180º/p = 57.295779513º or approximately 57.3º
                Debug.Print("Half angle           = " + vCone[7] * 57.3 + " degrees");
                Debug.Print("Reference direction  = (" + vCone[8] * 1000.0 + "mm, " + vCone[9] * 1000.0 + "mm, " + vCone[10] * 1000.0 + "mm)");
            }
 
        }
 
        public SldWorks swApp;
 
    }
 
}