exploring/drawings/drawings.py

Refer to the Drawing Exploration 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
 
# Explore view content
class DrawingElementVisitor(mtk.Drawing_ElementVoidVisitor):
    def __init__(self):
        super().__init__()
        self.myCurveSetCounter = 0
 
    def VisitCurveSet(self, theElement: mtk.Drawing_CurveSet):
        print (f"------- CurveSet <{self.myCurveSetCounter}>")
        print (f"------- number of curves: {theElement.NumberOfCurves()}")
        self.myCurveSetCounter += 1
 
# Iterate views
def ExploreSheet(theSheet: mtk.Drawing_Sheet):
    aViewIt = mtk.Drawing_Sheet_ViewIterator(theSheet)
    aViewCounter = 0
    while aViewIt.HasNext():
        aView = aViewIt.Next()
        print (f"---- View <{aViewCounter}>")
        aVisitor = DrawingElementVisitor()
        aView.Accept(aVisitor)
        aViewCounter += 1
 
# Iterate sheets
def ExploreDrawing(theDrawing: mtk.Drawing_Drawing):
    aSheetIt = mtk.Drawing_Drawing_SheetIterator(theDrawing)
    aSheetCounter = 0
    while (aSheetIt.HasNext()):
        aSheet = aSheetIt.Next()
        print (f"-- Sheet <{aSheetCounter}>")
        ExploreSheet(aSheet)
        aSheetCounter += 1
 
def main(theSource: str):
    aKey = license.Value()
 
    if not mtk.LicenseManager.Activate(aKey):
        print("Failed to activate Manufacturing Toolkit license.")
        return 1
 
    # Enable drawings reading
    aReaderParameters = mtk.ModelData_ModelReaderParameters()
    aReaderParameters.SetReadDrawing(True)
    aReader = mtk.ModelData_ModelReader()
    aReader.SetParameters(aReaderParameters)
 
    aModel = mtk.ModelData_Model()
 
    if not aReader.Read (mtk.UTF16String(theSource), aModel):
        print(f"Failed to read the file {theSource}")
        return 1
 
    aDrawing = aModel.Drawing()
    if aDrawing.IsNull():
        print("The model doesn't contain a drawing")
        return 1
 
    print(f"Drawing \"{aModel.Name()}\":")
    ExploreDrawing (aDrawing)
 
    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))