sheet_metal/unfolder/main.cxx

Refer to the Sheet Metal Unfolder Example

// ****************************************************************************
// $Id$
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2023, 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.
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// ****************************************************************************
 
 
#include <cadex/LicenseManager_Activate.h>
#include <cadex/ModelAlgo_ValidationProperty.hxx>
#include <cadex/ModelData_Body.hxx>
#include <cadex/ModelData_BodyList.hxx>
#include <cadex/ModelData_BRepRepresentation.hxx>
#include <cadex/ModelData_Drawing.hxx>
#include <cadex/ModelData_ModelReader.hxx>
#include <cadex/ModelData_ModelWriter.hxx>
#include <cadex/ModelData_SceneGraphElementUniqueVisitor.hxx>
#include <cadex/ModelData_Shell.hxx>
#include <cadex/ModelData_Solid.hxx>
#include <cadex/SheetMetal_FlatPattern.hxx>
#include <cadex/SheetMetal_Unfolder.hxx>
 
#include <iostream>
#include <vector>
 
#include "../../../cadex_license.cxx"
#include "../../../mtk_license.cxx"
 
using namespace cadex;
using namespace std;
 
bool WriteToDrawing (const SheetMetal_FlatPattern& theFlatPattern, const Base_UTF16String& theFilePath)
{
    ModelData_Drawing aDrawing = theFlatPattern.ToDrawing();
    if (!aDrawing) {
        return false;
    }
 
    ModelData_Model aDrawingModel;
    aDrawingModel.SetDrawing (aDrawing);
 
    ModelData_ModelWriter aWriter;
    bool aRes = aWriter.Write (aDrawingModel, theFilePath);
    return aRes;
}
 
void PrintFlatPattern (const SheetMetal_FlatPattern& theFlatPattern)
{
    cout << "    Flat Pattern with:" << endl;
    cout << "          length: "    << theFlatPattern.Length()    << " mm" << endl;
    cout << "          width: "     << theFlatPattern.Width()     << " mm" << endl;
    cout << "          thickness: " << theFlatPattern.Thickness() << " mm" << endl;
    cout << "          perimeter: " << theFlatPattern.Perimeter() << " mm" << endl;
}
 
void PrintFlatPatternAndWriteToDrawing (const SheetMetal_FlatPattern& theFlatPattern,
                                        const Base_UTF16String& theDrawingFileName)
{
    if (!theFlatPattern) {
        cerr << "    Failed to create flat pattern.";
        return;
    }
 
    PrintFlatPattern (theFlatPattern);
 
    if (WriteToDrawing (theFlatPattern, theDrawingFileName)) {
        cout << "    A drawing of the flat pattern has been saved to " << theDrawingFileName << endl;
    } else {
        cerr << "    Failed to save drawing of the flat pattern to " << theDrawingFileName << endl;
    }
}
 
//Compute approximate thickness value, which can be used as the input thickness value for SheetMetal_Unfolder.
double CalculateInitialThicknessValue (const ModelData_Shape& theShape)
{
    double aVolume = ModelAlgo_ValidationProperty::ComputeVolume (theShape);
    double aSurfaceArea = ModelAlgo_ValidationProperty::ComputeSurfaceArea (theShape);
    double aThickness = aVolume / (aSurfaceArea / 2.);
 
    return aThickness;
}
 
class PartProcessor : public ModelData_Model::VoidElementVisitor
{
public:
 
    PartProcessor (const Base_UTF16String& theDrawingFolderPath) :
        myDrawingFolderPath (theDrawingFolderPath)
    {}
 
    void operator() (const ModelData_Part& thePart) override
    {
        auto aPartName = thePart.Name().IsEmpty() ? "noname" : thePart.Name();
 
        auto aBRep = thePart.BRepRepresentation();
        if (aBRep) {
            const auto& aBodyList = aBRep.Get();
            for (size_t i = 0, n = aBodyList.Size(); i < n; ++i) {
                const auto& aBody = aBodyList[i];
                ModelData_Shape::Iterator aShapeIt (aBody);
                while (aShapeIt.HasNext()) {
                    const auto& aShape = aShapeIt.Next();
                    if (aShape.Type() == ModelData_ST_Solid) {
                        cout << "Part #" << myPartIndex << " [\"" << aPartName << "\"] - solid #" << std::to_string (i) << " has:" << endl;
                        ProcessSolid (ModelData_Solid::Cast (aShape), aPartName, i);
                    } else if (aShape.Type() == ModelData_ST_Shell) {
                        cout << "Part #" << myPartIndex << " [\"" << aPartName << "\"] - shell #" << std::to_string (i) << " has:" << endl;
                        ProcessShell (ModelData_Shell::Cast (aShape), aPartName, i);
                    }
                }
            }
        }
 
        ++myPartIndex;
    }
 
    void ProcessSolid (const ModelData_Solid& theSolid, const Base_UTF16String& thePartName, size_t theShapeIndex)
    {
        double aThickness = CalculateInitialThicknessValue (theSolid);
        auto aFlatPattern = myUnfolder.Perform (theSolid, aThickness);
        Base_UTF16String aFileName = DrawingFileName (thePartName, theShapeIndex, "solid");
        PrintFlatPatternAndWriteToDrawing (aFlatPattern, aFileName);
    }
 
    void ProcessShell (const ModelData_Shell& theShell, const Base_UTF16String& thePartName, size_t theShapeIndex)
    {
        auto aFlatPattern = myUnfolder.Perform (theShell);
        Base_UTF16String aFileName = DrawingFileName (thePartName, theShapeIndex, "shell");
        PrintFlatPatternAndWriteToDrawing (aFlatPattern, aFileName);
    }
 
private:
    Base_UTF16String DrawingFileName (const Base_UTF16String& thePartName,
                                      size_t theShapeIndex, const Base_UTF16String& theShapeName)
    {
        Base_UTF16String aPartName = Base_UTF16String ("Part ") + std::to_string (myPartIndex).c_str() + " [" + thePartName + "]";
        Base_UTF16String aShapeName = theShapeName + " " + std::to_string (theShapeIndex).c_str();
        Base_UTF16String aFileName = myDrawingFolderPath + "/" + aPartName + " - " + aShapeName + " - drawing.dxf";
        return aFileName;
    }
 
    SheetMetal_Unfolder    myUnfolder;
    Base_UTF16String       myDrawingFolderPath;
    size_t                 myPartIndex = 0;
};
 
int main (int argc, char* argv[])
{
    auto aKey = LicenseKey::Value();
    auto anMTKKey = MTKLicenseKey::Value();
 
    // Activate the license (aKey must be defined in cadex_license.cxx
    // and anMTKKey must be defined in mtk_license.cxx)
    if (!CADExLicense_Activate (aKey)) {
        cerr << "Failed to activate CAD Exchanger license." << endl;
        return 1;
    }
    if (!CADExLicense_Activate (anMTKKey)) {
        cerr << "Failed to activate Manufacturing Toolkit license." << endl;
        return 1;
    }
 
    if (argc != 3) {
        cerr << "Usage: " << argv[0] << " <input_file> <output_folder>, where:" << endl;
        cerr << "    <input_file> is a name of the file to be read" << endl;
        cerr << "    <output_folder> is a name of the folder where DXF files with drawing to be written" << endl;
        return 1;
    }
 
    const char* aSource = argv[1];
    const char* aDrawingPath = argv[2];
 
    ModelData_Model aModel;
    ModelData_ModelReader aReader;
 
    // Reading the file
    if (!aReader.Read (aSource, aModel)) {
        cerr << "Failed to read the file " << aSource << endl;
        return 1;
    }
    cout << "Model: " << aModel.Name() << "\n" << endl;
 
    //processing
    PartProcessor aPartProcessor (aDrawingPath);
    ModelData_SceneGraphElementUniqueVisitor aVisitor (aPartProcessor);
    aModel.Accept (aVisitor);
 
    return 0;
}