utilities/thumbnail_generation/main.cxx

Refer to the mtk_thumbnail_generation_example_page.

// ****************************************************************************
//
// 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.
// * 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.
//
// ****************************************************************************
 
 
#include <cadex/LicenseManager/LicenseError.hxx>
#include <cadex/LicenseManager/LicenseManager.hxx>
#include <cadex/ModelData/ModelReader.hxx>
#include <cadex/ModelData/Model.hxx>
#include <cadex/View/ImageWriter.hxx>
#include <cadex/View/ImageWriterParameters.hxx>
#include <cadex/Materials/Color.hxx>
 
#include <iostream>
 
#include "../../helpers/LicenseHelper.hxx"
#include "../../mtk_license.cxx"
 
 
using namespace std;
using namespace cadex;
 
int main (int argc, char* argv[])
{
    if (argc != 3) {
        cerr << "Usage: " << argv[0] << " <input_file> <output_file>, where:" << endl;
        cerr << "    <input_file>  is a name of the model file to be read" << endl;
        cerr << "    <output_file> is a name of the image file to be write" << endl;
        return 1;
    }
 
    auto aKey = MTKLicenseKey::Value();
 
    // Setup the runtime key
    if (!LicenseHelper::SetupRuntimeKey()) {
        return 1;
    }
 
    // Activate the license (Key must be defined in mtk_license.cxx)
    try {
        mtk::LicenseManager::Activate (aKey);
    } catch (const mtk::LicenseError& theException) {
        mtk::LicenseManager::Deactivate();
        std::cerr << "Failed to activate Manufacturing Toolkit license: " << theException.what() << std::endl;
        return 1;
    }
 
    const char* aSource = argv[1];
    const char* aDest   = argv[2];
 
    ModelData::Model aModel;
 
    // Opening and converting the file
    if (!ModelData::ModelReader().Read (aSource, aModel)) {
        cerr << "Failed to read the file " << aSource << endl;
        // Deactivate license before exit
        mtk::LicenseManager::Deactivate();
        return 1;
    }
 
    View::ImageWriter           aWriter;
    View::ImageWriterParameters aWriterParameters;
 
    // Set writer parameters
    aWriterParameters.SetImageWidth (750);
    aWriterParameters.SetImageHeight (500);
    aWriterParameters.SetViewIsFitAll (true);
    View::ColorBackgroundStyle aBackground (Materials::Color (255, 255, 255));
    aWriterParameters.SetViewBackground (aBackground);
 
    aWriter.SetParameters (aWriterParameters);
 
    // Generate the model image and save it into the file
    if (!aWriter.WriteFile (aModel, aDest)) {
        cerr << "Failed to write the image file " << aDest << endl;
        // Deactivate license before exit
        mtk::LicenseManager::Deactivate();
        return 1;
    }
 
    cout << "Thumbnail successfully generated: " << aDest << endl;
 
    // Deactivate license before exit
    mtk::LicenseManager::Deactivate();
 
    return 0;
}