exploring/brep_geometry/Program.cs

Refer to the B-Rep Geometry Exploration Example.

base_explorer.cs

// ****************************************************************************
// $Id$
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2024, CADEX. All rights reserved.
//
// This file is part of the CAD Exchanger 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.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// ****************************************************************************
 
 
using cadex.Geom;
using cadex.ModelData;
using System;
 
namespace brep_geometry
{
    class BaseExplorer
    {
        public static void PrintElementary(Conic theGeometry)
        {
            PrintDomain(theGeometry);
            Axis3d aPosition = theGeometry.Position();
            Point aLoc = aPosition.Location();
            Direction anAxis = aPosition.Axis();
            Direction aXDir = aPosition.XDirection();
            Direction aYDir = aPosition.YDirection();
            PrintParameter("Location",    aLoc);
            PrintParameter("Axis",        anAxis);
            PrintParameter("X Direction", aXDir);
            PrintParameter("Y Direction", aYDir);
        }
 
        public static void PrintElementary(ElementarySurface theGeometry)
        {
            PrintDomain(theGeometry);
            Axis3d aPosition = theGeometry.Position();
            Point aLoc = aPosition.Location();
            Direction anAxis = aPosition.Axis();
            Direction aXDir = aPosition.XDirection();
            Direction aYDir = aPosition.YDirection();
            PrintParameter("Location",    aLoc);
            PrintParameter("Axis",        anAxis);
            PrintParameter("X Direction", aXDir);
            PrintParameter("Y Direction", aYDir);
        }
 
        public static void PrintElementary2d(Conic2d theGeometry)
        {
            PrintDomain(theGeometry);
            Axis2d aPosition = theGeometry.Position();
            Point2d aLoc = aPosition.Location();
            Direction2d aXDir = aPosition.XDirection();
            Direction2d aYDir = aPosition.YDirection();
            PrintParameter("Location",    aLoc);
            PrintParameter("X Direction", aXDir);
            PrintParameter("Y Direction", aYDir);
        }
 
        public static void PrintRange(string aName, double aFirstParameter, double aLastParameter)
        {
            Console.Write("{0} = [{1}, {2}]; ", aName, aFirstParameter, aLastParameter);
        }
 
        public static void PrintDomain(Curve theCurve)
        {
            PrintRange("Domain", theCurve.UMin(), theCurve.UMax());
        }
 
        public static void PrintDomain(Curve2d theCurve)
        {
            PrintRange("Domain", theCurve.UMin(), theCurve.UMax());
        }
 
        public static void PrintDomain(Surface theSurface)
        {
            PrintRange("Domain U", theSurface.UMin(), theSurface.UMax());
            PrintRange("V", theSurface.VMin(), theSurface.VMax());
        }
 
        public static void PrintParameter(Point theValue)
        {
            Console.Write("({0}, {1}); ", theValue.X(), theValue.Y());
        }
 
        public static void PrintParameter(Direction theValue)
        {
            Console.Write("({0}, {1}, {2}); ", theValue.X(), theValue.Y(), theValue.Z());
        }
 
        public static void PrintParameter(Point2d theValue)
        {
            Console.Write("({0}, {1}); ", theValue.X(), theValue.Y());
        }
 
        public static void PrintParameter(Direction2d theValue)
        {
            Console.Write("({0}, {1}); ", theValue.X(), theValue.Y());
        }
 
        public static void PrintParameter(double theValue)
        {
            Console.Write("{0}; ", theValue);
        }
 
        public static void PrintParameter(string theName, Point theValue)
        {
            Console.Write("{0} = ", theName);
            PrintParameter(theValue);
        }
 
        public static void PrintParameter(string theName, Direction theValue)
        {
            Console.Write("{0} = ", theName);
            PrintParameter(theValue);
        }
 
 
        public static void PrintParameter(string theName, double theValue)
        {
            Console.Write("{0} = ", theName);
            PrintParameter(theValue);
        }
 
        public static void PrintParameter(string theName, Point2d theValue)
        {
            Console.Write("{0} = ", theName);
            PrintParameter(theValue);
        }
 
        public static void PrintParameter(string theName, Direction2d theValue)
        {
            Console.Write("{0} = ", theName);
            PrintParameter(theValue);
        }
 
        public static void PrintName(string theName)
        {
            Console.Write("{0}: ", theName);
        }
 
        public delegate void myPrint1dElement(int i);
        public static void PrintCollection(string theName,
                                           int theFinalIndex,
                                           myPrint1dElement thePrintElement)
        {
            if (theName != null)
            {
                Console.Write("{0} = ", theName);
            }
 
            Console.Write("[");
            for (int i = 1; i <= theFinalIndex; ++i)
            {
                if (i > 3)
                {
                    Console.Write("...");
                    break;
                }
                thePrintElement(i);
            }
            Console.Write("]; ");
        }
 
        public delegate void myPrint2dElement(int i, int j);
 
        public static void PrintCollection(string theName,
                                           int theFinalIndex1,
                                           int theFinalIndex2,
                                           myPrint2dElement thePrintElement)
        {
            PrintCollection(theName, theFinalIndex1, (int i) =>
            {
                PrintCollection(null, theFinalIndex2, (int j) => { thePrintElement(i, j); });
            });
        }
 
        public static void PrintOrientation(ShapeOrientation theOrientation)
        {
            Console.Write("Orientation = ");
            switch (theOrientation)
            {
                case ShapeOrientation.Forward: Console.Write("Forward"); break;
                case ShapeOrientation.Reversed: Console.Write("Reversed"); break;
                default: Console.Write("Undefined"); break;
            }
            Console.Write("; ");
        }
 
        public void PrintTabulation()
        {
            for (uint i = 0; i < myNestingLevel; ++i)
            {
                Console.Write("--- ");
            }
        }
 
        public uint myNestingLevel = 0;
    }
}
 

curve_explorer.cs

// ****************************************************************************
// $Id$
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2024, CADEX. All rights reserved.
//
// This file is part of the CAD Exchanger 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.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// ****************************************************************************
 
using cadex.Geom;
using System;
 
namespace brep_geometry
{
    class CurveExplorer : BaseExplorer
    {
        // Prints curve type name and prints shape info in some cases
        public static void PrintCurveInfo(Curve theCurve)
        {
            switch (theCurve.Type())
            {
                case CurveType.Line:
                    PrintLine(Line.Cast(theCurve));
                    break;
                case CurveType.Circle:
                    PrintCircle(Circle.Cast(theCurve));
                    break;
                case CurveType.Ellipse:
                    PrintEllipse(Ellipse.Cast(theCurve));
                    break;
                case CurveType.Hyperbola:
                    PrintHyperbola(Hyperbola.Cast(theCurve));
                    break;
                case CurveType.Parabola:
                    PrintParabola(Parabola.Cast(theCurve));
                    break;
                case CurveType.Bezier:
                    PrintBezierCurve(BezierCurve.Cast(theCurve));
                    break;
                case CurveType.BSpline:
                    PrintBSplineCurve(BSplineCurve.Cast(theCurve));
                    break;
                case CurveType.Offset:
                    PrintOffsetCurve(OffsetCurve.Cast(theCurve));
                    break;
                default:
                    break;
            }
        }
 
        public static void PrintLine(Line theLine)
        {
            PrintName("Line");
            Point     aLoc = theLine.Location();
            Direction aDir = theLine.Direction();
            PrintDomain(theLine);
            PrintParameter("Location",  aLoc);
            PrintParameter("Direction", aDir);
        }
 
        public static void PrintCircle(Circle theCircle)
        {
            PrintName("Circle");
            double aRadius = theCircle.Radius();
            PrintElementary(theCircle);
            PrintParameter("Radius", aRadius);
        }
 
        public static void PrintEllipse(Ellipse theEllipse)
        {
            PrintName("Ellipse");
            double aMajorRadius = theEllipse.MajorRadius();
            double aMinorRadius = theEllipse.MinorRadius();
            PrintElementary(theEllipse);
            PrintParameter("Major Radius", aMajorRadius);
            PrintParameter("Minor Radius", aMinorRadius);
        }
 
        public static void PrintHyperbola(Hyperbola theHyperbola)
        {
            PrintName("Hyperbola");
            double aMajorRadius = theHyperbola.MajorRadius();
            double aMinorRadius = theHyperbola.MinorRadius();
            PrintElementary(theHyperbola);
            PrintParameter("Major Radius", aMajorRadius);
            PrintParameter("Minor Radius", aMinorRadius);
        }
 
        public static void PrintParabola(Parabola theParabola)
        {
            PrintName("Parabola");
            double aFocal = theParabola.Focal();
            PrintElementary(theParabola);
            PrintParameter("Focal", aFocal);
        }
 
        public static void PrintBezierCurve(BezierCurve theBezier)
        {
            PrintName("Bezier Curve");
            int aDegree =        theBezier.Degree();
            int aNumberOfPoles = theBezier.NumberOfPoles();
            PrintDomain(theBezier);
            PrintParameter("Degree",          aDegree);
            PrintParameter("Number Of Poles", aNumberOfPoles);
 
            PrintCollection("Poles", aNumberOfPoles, (int i) =>
            {
                Point aPole = theBezier.Pole(i);
                PrintParameter(aPole);
            });
 
            PrintCollection("Weights", aNumberOfPoles, (int i) =>
            {
                double aWeight = theBezier.Weight(i);
                PrintParameter(aWeight);
            });
        }
 
        public static void PrintBSplineCurve(BSplineCurve theBSpline)
        {
            PrintName("BSpline Curve");
            int aDegree =        theBSpline.Degree();
            int aNumberOfKnots = theBSpline.NumberOfKnots();
            int aNumberOfPoles = theBSpline.NumberOfPoles();
            PrintDomain(theBSpline);
            PrintParameter("Degree",          aDegree);
            PrintParameter("Number Of Knots", aNumberOfKnots);
            PrintParameter("Number Of Poles", aNumberOfPoles);
 
            PrintCollection("Knots", aNumberOfKnots, (int i) =>
            {
                double aKnot = theBSpline.Knot(i);
                PrintParameter(aKnot);
            });
 
            PrintCollection("Multiplicities", aNumberOfKnots, (int i) =>
            {
                int aMultiplicity = theBSpline.Multiplicity(i);
                PrintParameter(aMultiplicity);
            });
 
            PrintCollection("Poles", aNumberOfPoles, (int i) =>
            {
                Point aPole = theBSpline.Pole(i);
                PrintParameter(aPole);
            });
 
            PrintCollection("Weights", aNumberOfPoles, (int i) =>
            {
                double aWeight = theBSpline.Weight(i);
                PrintParameter(aWeight);
            });
        }
 
        public static void PrintOffsetCurve(OffsetCurve theOffset)
        {
            PrintName("Offset Curve");
            Direction aDir = theOffset.Direction();
            double anOffset = theOffset.Offset();
            PrintDomain(theOffset);
            PrintParameter("Direction", aDir);
            PrintParameter("Offset",    anOffset);
            Console.Write("Basis Curve = ");
            PrintCurveInfo(theOffset.BasisCurve());
        }
    }
}

pcurve_explorer.cs

// ****************************************************************************
// $Id$
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2024, CADEX. All rights reserved.
//
// This file is part of the CAD Exchanger 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.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// ****************************************************************************
 
using cadex.Geom;
using System;
 
namespace brep_geometry
{
    class PCurveExplorer : BaseExplorer
    {
 
        // Prints 2d curve type name and prints shape info in some cases
        public static void PrintPCurveInfo(Curve2d theCurve)
        {
            switch (theCurve.Type())
            {
                case CurveType.Line:
                    PrintLine(Line2d.Cast(theCurve));
                    break;
                case CurveType.Circle:
                    PrintCircle(Circle2d.Cast(theCurve));
                    break;
                case CurveType.Ellipse:
                    PrintEllipse(Ellipse2d.Cast(theCurve));
                    break;
                case CurveType.Hyperbola:
                    PrintHyperbola(Hyperbola2d.Cast(theCurve));
                    break;
                case CurveType.Parabola:
                    PrintParabola(Parabola2d.Cast(theCurve));
                    break;
                case CurveType.Bezier:
                    PrintBezierCurve(BezierCurve2d.Cast(theCurve));
                    break;
                case CurveType.BSpline:
                    PrintBSplineCurve(BSplineCurve2d.Cast(theCurve));
                    break;
                case CurveType.Offset:
                    PrintOffsetCurve(OffsetCurve2d.Cast(theCurve));
                    break;
                default:
                    break;
            }
        }
 
        public static void PrintLine(Line2d theLine)
        {
            PrintName("Line 2d");
            Point2d     aLoc = theLine.Location();
            Direction2d aDir = theLine.Direction();
            PrintDomain(theLine);
            PrintParameter("Location",  aLoc);
            PrintParameter("Direction", aDir);
        }
 
        public static void PrintCircle(Circle2d theCircle)
        {
            PrintName("Circle 2d");
            double aRadius = theCircle.Radius();
            PrintElementary2d(theCircle);
            PrintParameter("Radius", aRadius);
        }
 
        public static void PrintEllipse(Ellipse2d theEllipse)
        {
            PrintName("Ellipse 2d");
            double aMajorRadius = theEllipse.MajorRadius();
            double aMinorRadius = theEllipse.MinorRadius();
            PrintElementary2d(theEllipse);
            PrintParameter("Major Radius", aMajorRadius);
            PrintParameter("Minor Radius", aMinorRadius);
        }
 
        public static void PrintHyperbola(Hyperbola2d theHyperbola)
        {
            PrintName("Hyperbola 2d");
            double aMajorRadius = theHyperbola.MajorRadius();
            double aMinorRadius = theHyperbola.MinorRadius();
            PrintElementary2d(theHyperbola);
            PrintParameter("Major Radius", aMajorRadius);
            PrintParameter("Minor Radius", aMinorRadius);
        }
 
        public static void PrintParabola(Parabola2d theParabola)
        {
            PrintName("Parabola 2d");
            double aFocal = theParabola.Focal();
            PrintElementary2d(theParabola);
            PrintParameter("Focal", aFocal);
        }
 
        public static void PrintBezierCurve(BezierCurve2d theBezier)
        {
            PrintName("Bezier Curve 2d");
            int aDegree =        theBezier.Degree();
            int aNumberOfPoles = theBezier.NumberOfPoles();
            PrintDomain(theBezier);
            PrintParameter("Degree",          aDegree);
            PrintParameter("Number Of Poles", aNumberOfPoles);
 
            PrintCollection("Poles", aNumberOfPoles, (int i) => {
                Point2d aPole = theBezier.Pole(i);
                PrintParameter(aPole);
            });
 
            PrintCollection("Weights", aNumberOfPoles, (int i) => {
                double aWeight = theBezier.Weight(i);
                PrintParameter(aWeight);
            });
        }
 
        public static void PrintBSplineCurve(BSplineCurve2d theBSpline)
        {
            PrintName("BSpline Curve 2d");
            int aDegree =        theBSpline.Degree();
            int aNumberOfKnots = theBSpline.NumberOfKnots();
            int aNumberOfPoles = theBSpline.NumberOfPoles();
            PrintDomain(theBSpline);
            PrintParameter("Degree",          aDegree);
            PrintParameter("Number Of Knots", aNumberOfKnots);
            PrintParameter("Number Of Poles", aNumberOfPoles);
 
            PrintCollection("Knots", aNumberOfKnots, (int i) =>
            {
                double aKnot = theBSpline.Knot(i);
                PrintParameter(aKnot);
            });
 
            PrintCollection("Multiplicities", aNumberOfKnots, (int i) => {
                int aMultiplicity = theBSpline.Multiplicity(i);
                PrintParameter(aMultiplicity);
            });
 
            PrintCollection("Poles", aNumberOfPoles, (int i) => {
                Point2d aPole = theBSpline.Pole(i);
                PrintParameter(aPole);
            });
 
            PrintCollection("Weights", aNumberOfPoles, (int i) => {
                double aWeight = theBSpline.Weight(i);
                PrintParameter(aWeight);
            });
        }
 
        public static void PrintOffsetCurve(OffsetCurve2d theOffset)
        {
            PrintName("Offset Curve 2d");
            double anOffset = theOffset.Offset();
            PrintDomain(theOffset);
            PrintParameter("Offset", anOffset);
            Console.Write("Basis Curve = ");
            PrintPCurveInfo(theOffset.BasisCurve());
        }
    }
}

shape_explorer.cs

// ****************************************************************************
// $Id$
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2024, CADEX. All rights reserved.
//
// This file is part of the CAD Exchanger 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.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// ****************************************************************************
 
using cadex.Collections;
using cadex.ModelData;
using cadex.Geom;
using System;
 
namespace brep_geometry 
{
    class ShapeExplorer : ModelElementVoidVisitor
    {
        public override void Apply(Part thePart)
        {
            Console.WriteLine("Part = \"{0}\"", thePart.Name());
            var aBodies = thePart.Bodies();
            if (!aBodies.IsEmpty)
            {
                ExploreBRep(aBodies);
            }
        }
 
        private void ExploreBRep(BodyList theBodies)
        {
            // Iterate over bodies
            for (int i = 0; i < theBodies.Count; ++i)
            {
                var aBody = theBodies[i];
                Console.WriteLine("Body {0}: -type {1}", i, BodyType(aBody));
 
                ShapeIterator aFaceIt = new ShapeIterator(aBody);
                for (var j = new ShapeIterator(aBody); j.HasNext();)
                {
                    var aShape = j.Next();
                    ExploreShape(aShape);
                }
            }
        }
 
        // Recursive iterating over the Shape until reaching vertices
        private void ExploreShape(Shape theShape)
        {
            if (theShape.Type() == ShapeType.Face)
            {
                myCurrentFace = Face.Cast(theShape);
            }
            ++myBase.myNestingLevel;
            ShapeIterator aShapeIt = new ShapeIterator(theShape);
            while (aShapeIt.HasNext())
            {
                Shape aShape = aShapeIt.Next();
                PrintShape(aShape);
                ExploreShape(aShape);
            }
            if (theShape.Type() == ShapeType.Face)
            {
                myCurrentFace = null;
            }
            --myBase.myNestingLevel;
        }
 
        // Returns body type name
        private string BodyType(Body theBody)
        {
            if (SheetBody.CompareType(theBody))
            {
                return "Sheet";
            }
            else if (SolidBody.CompareType(theBody))
            {
                return "Solid";
            }
            else if (WireframeBody.CompareType(theBody))
            {
                return "Wireframe";
            }
 
            return "Undefined";
        }
 
        // Prints shape type name and prints shape info in some cases
        private void PrintShape(Shape theShape)
        {
            myBase.PrintTabulation();
 
            switch (theShape.Type())
            {
                case ShapeType.Solid:
                    Console.Write("Solid");
                    break;
                case ShapeType.Shell:
                    PrintShell(Shell.Cast(theShape));
                    break;
                case ShapeType.Wire:
                    PrintWire(Wire.Cast(theShape));
                    break;
                case ShapeType.Face:
                    PrintFace(Face.Cast(theShape));
                    break;
                case ShapeType.Edge:
                    PrintEdge(Edge.Cast(theShape));
                    break;
                case ShapeType.Vertex:
                    PrintVertex(Vertex.Cast(theShape));
                    break;
                default: Console.Write("Undefined"); break;
            }
 
            Console.WriteLine();
        }
 
        private void PrintShell(Shell theWire)
        {
            BaseExplorer.PrintName("Shell");
            ++myBase.myNestingLevel;
            BaseExplorer.PrintOrientation(theWire.Orientation());
            --myBase.myNestingLevel;
        }
 
        private void PrintWire(Wire theWire)
        {
            BaseExplorer.PrintName("Wire");
            ++myBase.myNestingLevel;
            BaseExplorer.PrintOrientation(theWire.Orientation());
            --myBase.myNestingLevel;
        }
 
        private void PrintFace(Face theFace)
        {
            BaseExplorer.PrintName("Face");
            ++myBase.myNestingLevel;
            BaseExplorer.PrintOrientation(theFace.Orientation());
            Console.WriteLine();
            Surface aSurface = theFace.Surface();
            myBase.PrintTabulation();
            BaseExplorer.PrintName("Surface");
            SurfaceExplorer.PrintSurface(aSurface);
            --myBase.myNestingLevel;
        }
 
        private void PrintEdge(Edge theEdge)
        {
            BaseExplorer.PrintName("Edge");
            ++myBase.myNestingLevel;
            if (theEdge.IsDegenerated())
            {
                Console.Write("Degenerated: ");
            }
            BaseExplorer.PrintOrientation(theEdge.Orientation());
            BaseExplorer.PrintParameter("Tolerance", theEdge.Tolerance());
 
            if (!theEdge.IsDegenerated())
            {
                double aFirstParameter = 0, aLastParameter = 0;
                Curve aCurve = theEdge.Curve(out aFirstParameter, out aLastParameter);
                Console.WriteLine();
                myBase.PrintTabulation();
                BaseExplorer.PrintName("Curve");
                BaseExplorer.PrintRange("Edge Range", aFirstParameter, aLastParameter);
                CurveExplorer.PrintCurveInfo(aCurve);
            }
 
            if (myCurrentFace != null)
            {
                double aFirstParameter2d = 0, aLastParameter2d = 0;
                Curve2d aPCurve = theEdge.PCurve(myCurrentFace, out aFirstParameter2d, out aLastParameter2d);
                Console.WriteLine();
                myBase.PrintTabulation();
                BaseExplorer.PrintName("PCurve");
                BaseExplorer.PrintRange("Edge Range", aFirstParameter2d, aLastParameter2d);
                PCurveExplorer.PrintPCurveInfo(aPCurve);
            }
            --myBase.myNestingLevel;
        }
 
        private void PrintVertex(Vertex theVertex)
        {
            BaseExplorer.PrintName("Vertex");
            Point aLoc =       theVertex.Point();
            double          aTolerance = theVertex.Tolerance();
            BaseExplorer.PrintOrientation(theVertex.Orientation());
            BaseExplorer.PrintParameter("Tolerance", aTolerance);
            BaseExplorer.PrintParameter("Location", aLoc);
        }
 
        private BaseExplorer myBase = new BaseExplorer();
        private Face myCurrentFace = null;
    }
}

surface_explorer.cs

// ****************************************************************************
// $Id$
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2024, CADEX. All rights reserved.
//
// This file is part of the CAD Exchanger 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.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// ****************************************************************************
 
using cadex.Geom;
using System;
 
namespace brep_geometry
{
    class SurfaceExplorer : BaseExplorer
    {
        // Prints surface type name and prints shape info in some cases
        public static void PrintSurface(Surface theSurface)
        {
            switch (theSurface.Type())
            {
                case SurfaceType.Plane:
                    PrintPlane(Plane.Cast(theSurface));
                    break;
                case SurfaceType.Cylinder:
                    PrintCylinder(CylindricalSurface.Cast(theSurface));
                    break;
                case SurfaceType.Cone:
                    PrintCone(ConicalSurface.Cast(theSurface));
                    break;
                case SurfaceType.Sphere:
                    PrintSphere(SphericalSurface.Cast(theSurface));
                    break;
                case SurfaceType.Torus:
                    PrintTorus(ToroidalSurface.Cast(theSurface));
                    break;
                case SurfaceType.LinearExtrusion:
                    PrintLinearExtrusion(SurfaceOfLinearExtrusion.Cast(theSurface));
                    break;
                case SurfaceType.Revolution:
                    PrintRevolution(SurfaceOfRevolution.Cast(theSurface));
                    break;
                case SurfaceType.Bezier:
                    PrintBezierSurface(BezierSurface.Cast(theSurface));
                    break;
                case SurfaceType.BSpline:
                    PrintBSplineSurface(BSplineSurface.Cast(theSurface));
                    break;
                case SurfaceType.Offset:
                    PrintOffsetSurface(OffsetSurface.Cast(theSurface));
                    break;
                default:
                    break;
            }
        }
 
        public static void PrintPlane(Plane thePlane)
        {
            PrintName("Plane");
            PrintElementary(thePlane);
        }
 
        public static void PrintCylinder(CylindricalSurface theCylinder)
        {
            PrintName("Cylinder");
            double aRadius = theCylinder.Radius();
            PrintElementary(theCylinder);
            PrintParameter("Radius", aRadius);
        }
 
        public static void PrintCone(ConicalSurface theCone)
        {
            PrintName("Cone");
            double aRadius =    theCone.Radius();
            double aSemiAngle = theCone.SemiAngle();
            PrintElementary(theCone);
            PrintParameter("Radius",     aRadius);
            PrintParameter("Semi-Angle", aSemiAngle);
        }
 
        public static void PrintSphere(SphericalSurface theSphere)
        {
            PrintName("Sphere");
            double aRadius = theSphere.Radius();
            PrintElementary(theSphere);
            PrintParameter("Radius", aRadius);
        }
 
        public static void PrintTorus(ToroidalSurface theTorus)
        {
            PrintName("Torus");
            double aMajorRadius = theTorus.MajorRadius();
            double aMinorRadius = theTorus.MinorRadius();
            PrintElementary(theTorus);
            PrintParameter("Major Radius", aMajorRadius);
            PrintParameter("Minor Radius", aMinorRadius);
        }
 
        public static void PrintLinearExtrusion(SurfaceOfLinearExtrusion theLinearExtrusion)
        {
            PrintName("Linear Extrusion Surface");
            Direction aDir = theLinearExtrusion.Direction();
            PrintDomain(theLinearExtrusion);
            PrintParameter("Direction", aDir);
            Console.Write("Basis Curve = ");
            CurveExplorer.PrintCurveInfo(theLinearExtrusion.BasisCurve());
        }
 
        public static void PrintRevolution(SurfaceOfRevolution theRevolution)
        {
            PrintName("Revolution Surface");
            Direction aDir = theRevolution.Direction();
            Point     aLoc = theRevolution.Location();
            PrintDomain(theRevolution);
            PrintParameter("Location",  aLoc);
            PrintParameter("Direction", aDir);
            Console.Write("Basis Curve = ");
            CurveExplorer.PrintCurveInfo(theRevolution.BasisCurve());
        }
 
        public static void PrintBezierSurface(BezierSurface theBezier)
        {
            PrintName("Bezier Surface");
            int aUDegree =        theBezier.UDegree();
            int aVDegree =        theBezier.VDegree();
            int aNumberOfUPoles = theBezier.NumberOfUPoles();
            int aNumberOfVPoles = theBezier.NumberOfVPoles();
            PrintDomain(theBezier);
            PrintParameter("U Degree",          aUDegree);
            PrintParameter("V Degree",          aVDegree);
            PrintParameter("Number Of U Poles", aNumberOfUPoles);
            PrintParameter("Number Of V Poles", aNumberOfVPoles);
 
            PrintCollection("Poles", aNumberOfUPoles, aNumberOfVPoles, (int i, int j) => {
                Point aPole = theBezier.Pole(i, j);
                PrintParameter(aPole);
            });
 
            PrintCollection("Weights", aNumberOfUPoles, aNumberOfVPoles, (int i, int j) => {
                double aWeight = theBezier.Weight(i, j);
                PrintParameter(aWeight);
            });
        }
 
        public static void PrintBSplineSurface(BSplineSurface theBSpline)
        {
            PrintName("BSpline Surface");
            int aUDegree =        theBSpline.UDegree();
            int aVDegree =        theBSpline.VDegree();
            int aNumberOfUKnots = theBSpline.NumberOfUKnots();
            int aNumberOfVKnots = theBSpline.NumberOfVKnots();
            int aNumberOfUPoles = theBSpline.NumberOfUPoles();
            int aNumberOfVPoles = theBSpline.NumberOfVPoles();
            PrintDomain(theBSpline);
            PrintParameter("U Degree",          aUDegree);
            PrintParameter("V Degree",          aVDegree);
            PrintParameter("Number Of U Knots", aNumberOfUKnots);
            PrintParameter("Number Of V Knots", aNumberOfVKnots);
            PrintParameter("Number Of U Poles", aNumberOfUPoles);
            PrintParameter("Number Of V Poles", aNumberOfVPoles);
 
            PrintCollection("U Knots", aNumberOfUKnots, (int i) => {
                double aKnot = theBSpline.UKnot(i);
                PrintParameter(aKnot);
            });
 
            PrintCollection("V Knots", aNumberOfVKnots, (int i) => {
                double aKnot = theBSpline.VKnot(i);
                PrintParameter(aKnot);
            });
 
 
            PrintCollection("U Multiplicities", aNumberOfUKnots, (int i) => {
                int aUMultiplicity = theBSpline.UMultiplicity(i);
                PrintParameter(aUMultiplicity);
            });
 
            PrintCollection("V Multiplicities", aNumberOfVKnots, (int i) => {
                int aVMultiplicity = theBSpline.VMultiplicity(i);
                PrintParameter(aVMultiplicity);
            });
 
            PrintCollection("Poles", aNumberOfUPoles, aNumberOfVPoles, (int i, int j) => {
                Point aPole = theBSpline.Pole(i, j);
                PrintParameter(aPole);
            });
 
            PrintCollection("Weights", aNumberOfUPoles, aNumberOfVPoles, (int i, int j) => {
                double aWeight = theBSpline.Weight(i, j);
                PrintParameter(aWeight);
            });
        }
 
        public static void PrintOffsetSurface(OffsetSurface theOffset)
        {
            PrintName("Offset Surface");
            double anOffset = theOffset.Offset();
            PrintDomain(theOffset);
            PrintParameter("Offset", anOffset);
            Console.Write("Basis Surface = ");
            PrintSurface(theOffset.BasisSurface());
        }
    }
}

Program.cs

// ****************************************************************************
// $Id$
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2025, 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.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// ****************************************************************************
 
using cadex;
using System;
using cadex.ModelData;
 
namespace brep_geometry
{
    class Program
    {
        static int Main(string[] args)
        {
            string aKey = MTKLicenseKey.Value();
 
            // Activate the license (aKey must be defined in cadex_license.cs)
            if (!LicenseManager.Activate(aKey))
            {
                Console.WriteLine("Failed to activate CAD Exchanger license.");
                return 1;
            }
 
            if (args.Length != 1)
            {
                Console.WriteLine("Usage: " + System.Reflection.Assembly.GetExecutingAssembly().Location
                + " <input_file>, where:");
                Console.WriteLine("    <input_file>  is a name of the XML file to be read");
                return 1;
            }
 
            string aSource = args[0];
 
            Model aModel = new Model();
 
            if (!new ModelReader().Read(new UTF16String(aSource), aModel))
            {
                Console.WriteLine("Failed to read the file " + aSource);
                return 1;
            }
 
            // Explore B-Rep representation of model parts
            ShapeExplorer aVisitor = new ShapeExplorer();
            aModel.Accept(aVisitor);
 
            return 0;
        }
    }
}