projector/poly_projector/poly_projector.py

Refer to the Projector Example

# $Id$
 
# 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.
 
import os
import sys
 
from pathlib import Path
 
import manufacturingtoolkit.CadExMTK as mtk
 
sys.path.append(os.path.abspath(os.path.dirname(Path(__file__).resolve()) + "/../../"))
 
import mtk_license as license
 
class SceneGraphPolyProjector(mtk.ModelData_ModelElementVoidVisitor):
    def __init__(self, theDirection: mtk.Geom_Direction):
        super().__init__()
        self.myDirection = theDirection
        self.myProjector = mtk.Projector_PolyProjector()
 
    def VisitPart(self, thePart: mtk.ModelData_Part):
        aData = self.myProjector.Perform(thePart, self.myDirection)
        print(f"Part projection [{thePart.Name()}] has:")
        print(f"    area = {aData.ProjectionArea()} mm\n")
 
def main(theSource: str):
    aKey = license.Value()
 
    if not mtk.LicenseManager.Activate(aKey):
        print("Failed to activate Manufacturing Toolkit license.")
        return 1
 
    aModel = mtk.ModelData_Model()
    aReader = mtk.ModelData_ModelReader()
 
    # Reading the file
    if not aReader.Read(mtk.UTF16String(theSource), aModel):
        print("Failed to open and convert the file " + theSource)
        return 1
 
    print("Model: ", aModel.Name(), "\n", sep="")
 
    # Processing
    aProjector = SceneGraphPolyProjector(mtk.Geom_Direction.YDir())
    aModel.Accept(aProjector)
    
    return 0
 
if __name__ == "__main__":
    if len(sys.argv) != 2:
        print("Usage: <input_file>, where:")
        print("    <input_file> is a name of the file to be read")
        sys.exit()
 
    aSource = os.path.abspath(sys.argv[1])
 
    sys.exit(main(aSource))