meshing/mesh_generation/Program.cs

Refer to the Mesh Generation Example.

// ****************************************************************************
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2026, CADEX. All rights reserved.
//
// This file is part of the Manufacturing Toolkit software.
//
// You may use this file under the terms of the BSD license as follows:
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright notice,
//   this list of conditions and the following disclaimer.
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//   this list of conditions and the following disclaimer in the documentation
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using cadex;
using cadex.mtk;
using cadex.ModelData;
using cadex.ModelAlgo;
using System;
using cadex.Collections;
 
namespace mesh_generation
{
    internal class Program
    {
        class FirstFaceGetter : ModelElementVoidVisitor
        {
            public override void Apply(Part thePart)
            {
                if (myFace == null)
                {
                    ExploreBRep(thePart.Bodies());
                }
            }
 
            public Face FirstFace()
            {
                return myFace;
            }
 
            private void ExploreBRep(BodyList theBodies)
            {
                foreach (var aBody in theBodies)
                {
                    ShapeIterator aFaceIt = new ShapeIterator(aBody, ShapeType.Face);
                    if (aFaceIt.HasNext())
                    {
                        var aFirstShape = aFaceIt.Next();
                        var aFirstFace = Face.Cast(aFirstShape);
                        myFace = aFirstFace;
                        break;
                    }
                }
            }
 
            Face myFace;
        };
 
        static void PrintFaceTriangulationInfo(Face theFace)
        {
            IndexedTriangleSet anITS = theFace.Triangulation();
 
            Console.WriteLine("Face triangulation contains " + anITS.NumberOfTriangles() + " triangles.");
 
            uint aNumberOfTrianglesToPrint = Math.Min(4, anITS.NumberOfTriangles());
 
            for (uint i = 0; i < aNumberOfTrianglesToPrint; ++i)
            {
                Console.WriteLine("Triangle index " + i + " with vertices: ");
                for (uint j = 0; j < 3; ++j)
                {
                    var aVertexIndex = anITS.TriangleVertexIndex(i, j);
                    Console.Write("  Vertex index " + aVertexIndex + " with coords (");
                    var aPoint = anITS.TriangleVertex(i, j);
                    Console.Write("X: " + aPoint.X() + ", ");
                    Console.Write("Y: " + aPoint.Y() + ", ");
                    Console.WriteLine("Z: " + aPoint.Z() + ")");
                }
            }
        }
 
        static int Main(string[] args)
        {
            // Get the input
            if (args.Length != 1)
            {
                Console.WriteLine("Usage: " + System.Reflection.Assembly.GetExecutingAssembly().Location + " <input_file>, where:");
                Console.WriteLine("    <input_file> is a name of the file to be read");
                return 1;
            }
 
            string aKey = MTKLicenseKey.Value();
 
            if (!LicenseHelper.SetupRuntimeKey())
            {
                return 1;
            }
 
            try
            {
                LicenseManager.Activate(aKey);
            }
            catch (LicenseError theException)
            {
                LicenseManager.Deactivate();
                Console.WriteLine("Failed to activate Manufacturing Toolkit license: " + theException.what());
                return 1;
            }
 
            UTF16String aSource = new UTF16String(args[0]);
 
            Model aModel = new Model();
            ModelReader aReader = new ModelReader();
            if (!aReader.Read(aSource, aModel))
            {
                LicenseManager.Deactivate();
                Console.WriteLine("Failed to read the file " + aSource);
                return 1;
            }
 
            // Set up mesher and parameters:
            MeshGeneratorParameters aParam = new MeshGeneratorParameters();
            aParam.SetAngularDeflection(Math.PI * 10 / 180);
            aParam.SetChordalDeflection(0.003);
 
            MeshGenerator aMesher = new MeshGenerator(aParam);
            aMesher.Generate(aModel);
 
            FirstFaceGetter aVisitor = new FirstFaceGetter();
            aModel.Accept(aVisitor);
 
            Face aFace = aVisitor.FirstFace();
            PrintFaceTriangulationInfo(aFace);
 
            LicenseManager.Deactivate();
 
            return 0;
        }
    }
}