259 lines
8.1 KiB
Python
259 lines
8.1 KiB
Python
# -*- coding: utf8 -*-
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## @package importDWG
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# \ingroup DRAFT
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# \brief DWG file importer & exporter
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'''
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@package importDWG
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ingroup DRAFT
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\brief DWG file importer & exporter
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This module provides support for importing and exporting Autodesk DWG files.
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This module is only a thin layer that uses the ODA (formerly Teigha) File
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Converter application to convert to/from DXF. Then the real work is done by
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importDXF
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The converter may be called
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/usr/bin/TeighaFileConverter
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/usr/bin/ODAFileConverter
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Test files
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https://knowledge.autodesk.com/support/autocad/downloads/
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caas/downloads/content/autocad-sample-files.html
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'''
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# Check code quality with
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# flake8 --ignore=E226,E266,E401,W503
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# ***************************************************************************
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# * *
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# * Copyright (c) 2009 Yorik van Havre <yorik@uncreated.net> *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * This program is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Library General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with this program; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ***************************************************************************
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import six
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import FreeCAD
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from FreeCAD import Console as FCC
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if FreeCAD.GuiUp:
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from DraftTools import translate
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else:
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def translate(context, txt):
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return txt
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# Save the native open function to avoid collisions
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if open.__module__ == '__builtin__':
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pythonopen = open
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def open(filename):
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"""Open filename and parse using importDXF.open().
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Parameters
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----------
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filename : str
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The path to the filename to be opened.
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Returns
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-------
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App::Document
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The new FreeCAD document object created, with the parsed information.
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"""
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dxf = convertToDxf(filename)
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if dxf:
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import importDXF
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doc = importDXF.open(dxf)
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return doc
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return
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def insert(filename, docname):
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"""Imports a file using importDXF.insert().
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If no document exist, it is created.
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Parameters
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----------
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filename : str
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The path to the filename to be opened.
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docname : str
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The name of the active App::Document if one exists, or
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of the new one created.
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Returns
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-------
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App::Document
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The active FreeCAD document, or the document created if none exists,
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with the parsed information.
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"""
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dxf = convertToDxf(filename)
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if dxf:
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import importDXF
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# Warning: function doesn't return?
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doc = importDXF.insert(dxf, docname)
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return doc
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return
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def export(objectslist, filename):
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"""Export the DWG file with a given list of objects.
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The objects are exported with importDXF.export().
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Then the result is converted to DWG.
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Parameters
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----------
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exportList : list
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List of document objects to export.
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filename : str
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Path to the new file.
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Returns
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-------
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str
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The same `filename` input.
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"""
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import importDXF, os, tempfile
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outdir = tempfile.mkdtemp()
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_basename = os.path.splitext(os.path.basename(filename))[0]
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dxf = outdir + os.sep + _basename + ".dxf"
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importDXF.export(objectslist, dxf)
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convertToDwg(dxf, filename)
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return filename
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def getTeighaConverter():
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"""Find the ODA (formerly Teigha) executable.
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It searches the FreeCAD parameters database, then searches for common
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paths in Linux and Windows systems.
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Parameters
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----------
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None
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Returns
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-------
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str
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The full path of the converter executable
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'/usr/bin/TeighaFileConverter'
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"""
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import FreeCAD, os, platform
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p = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Draft")
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p = p.GetString("TeighaFileConverter")
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if p:
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# path set manually
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teigha = p
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else:
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# try to find teigha
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teigha = None
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if platform.system() == "Linux":
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teigha = "/usr/bin/TeighaFileConverter"
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if not os.path.exists(teigha):
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teigha = "/usr/bin/ODAFileConverter"
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elif platform.system() == "Windows":
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odadir = os.path.expandvars("%ProgramFiles%\ODA")
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if os.path.exists(odadir):
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subdirs = os.walk(odadir).next()[1]
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for sub in subdirs:
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t = (odadir + os.sep + sub + os.sep
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+ "TeighaFileConverter.exe")
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t = os.path.join(odadir, sub, "TeighaFileConverter.exe")
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if os.path.exists(t):
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teigha = t
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if teigha:
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if os.path.exists(teigha):
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return teigha
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from DraftTools import translate
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_msg = ("ODA (formerly Teigha) File Converter not found, "
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"DWG support is disabled")
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FCC.PrintMessage(translate("draft", _msg) + "\n")
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return None
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def convertToDxf(dwgfilename):
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"""Convert a DWG file to a DXF file.
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If the converter is found it is used, otherwise the convesion fails.
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Parameters
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----------
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dwgfilename : str
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The input filename.
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Returns
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-------
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str
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The new file produced.
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"""
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import os, tempfile, subprocess, sys
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teigha = getTeighaConverter()
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if teigha:
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indir = os.path.dirname(dwgfilename)
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outdir = tempfile.mkdtemp()
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basename = os.path.basename(dwgfilename)
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cmdline = ('"%s" "%s" "%s" "ACAD2000" "DXF" "0" "1" "%s"'
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% (teigha, indir, outdir, basename))
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print("Converting: " + cmdline)
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if six.PY2:
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if isinstance(cmdline, six.text_type):
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encoding = sys.getfilesystemencoding()
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cmdline = cmdline.encode(encoding)
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subprocess.call(cmdline, shell=True) # os.system(cmdline)
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result = outdir + os.sep + os.path.splitext(basename)[0] + ".dxf"
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if os.path.exists(result):
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print("Conversion successful")
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return result
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else:
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_msg = ("Error during DWG to DXF conversion. "
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"Try moving the DWG file to a directory path\n"
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"without spaces and non-english characters, "
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"or try saving to a lower DWG version.")
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FCC.PrintMessage(translate("ImportDWG", _msg) + "\n")
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return None
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def convertToDwg(dxffilename, dwgfilename):
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"""Convert a DXF file to a DWG file.
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If the converter is found it is used, otherwise the convesion fails.
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Parameters
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----------
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dxffilename : str
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The input DXF file
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dwgfilename : str
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The output DWG file
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Returns
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-------
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str
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The same `dwgfilename` file path.
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"""
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import os, subprocess
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teigha = getTeighaConverter()
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if teigha:
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indir = os.path.dirname(dxffilename)
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outdir = os.path.dirname(dwgfilename)
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basename = os.path.basename(dxffilename)
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cmdline = ('"%s" "%s" "%s" "ACAD2000" "DWG" "0" "1" "%s"'
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% (teigha, indir, outdir, basename))
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print("converting " + cmdline)
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subprocess.call(cmdline, shell=True) # os.system(cmdline)
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return dwgfilename
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return None
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