FreeCAD and DWG Import/ko

왜 DWG 파일을 FreeCAD 안으로 import 할 수 없나요?
DWG 형식은 닫힌 소스 이진 파일 형식이며 FreeCAD에서 직접 지원하지 않습니다. It requires an external 3rd party file converter to first convert then import the conversion into FreeCAD for use.

Note that at this time, it is not possible to import 3D DWG in FreeCAD. 3D data is embedded as binary .SAT (ACIS) data, a proprietary and undocumented format.

ODA Converter (formerly Teigha Converter)

 * 홈페이지: https://www.opendesign.com/guestfiles/oda_file_converter
 * 라이선스: freeware
 * optional, used to enable import and export of DWG files

The ODA Converter is a small freely available utility that allows to convert between several versions of DWG and DXF files. FreeCAD can use it to offer DWG import and export, by converting DWG files to the DXF format under the hood,then using its standard DXF importer to import the file contents. The restrictions of the DXF importer apply.

설치
On all platforms, only by installing the appropriate package from https://www.opendesign.com/guestfiles/oda_file_converter. After installation, if the utility is not found automatically by FreeCAD, you might need to set the path to the converter executable manually. open Edit → Preferences → Import-Export → DWG and fill "Path to Teigha File Converter" appropriately.

더 자세한 설명을 보려면 this tutorial.

사용법
The program may be used with the command line interface or the graphical interface. Be sure to convert the DWG files to an ASCII-Format.

명령 라인 형식:
 * 1) Quoted Input Folder
 * 2) Quoted Output Folder
 * 3) Output_version {"ACAD9","ACAD10","ACAD12", "ACAD13","ACAD14", "ACAD2000","ACAD2004", "ACAD2007","ACAD2010"}
 * 4) Output File type {"DWG","DXF","DXB"}
 * 5) Recurse Input Folder {"0","1"}
 * 6) Audit each file {"0","1"}
 * 7) [optional] Input file filter (default:"*.DWG;*.DXF")

리눅스용 예

ODAFileConverter "/home/dwg-data" "/home/dxf-data" "ACAD2010" "DXF" "0" "1" "test.dwg" The second number (audit) needs to be 1 otherwise it fails

Example for Windows

"C:\Program Files\ODA\Teigha File Converter 3.08.2\TeighaFileConverter.exe" "Path-To-Input-Directory" "Path-To-Output-Directory" "ACAD2010" "DXF" "0" "1" "Name-Of-A-Test-File.dwg"

DraftSight
There is a free commercial program called DraftSight (http://www.3ds.com/products-services/draftsight/overview/) that can import most DWG files and can save and export in formats that are friendly to FreeCAD. Draftsight runs on A free registration is required for activation of the program.
 * 윈도 32 비트
 * 윈도 64 비트
 * 맥 OS X
 * 리눅스 Fedora
 * 리눅스 우분투

DoubleCAD XT
There is also DoubleCAD XT (https://www.turbocad.com/content/doublecad-xt-v5). The program is free for personal and commercial use. It requires a free sign-up to receive an activation code via E-Mail. This Program is windows-only. Note: it does not seem to have been updated for years.

AutoCAD 파일을 친근한 형식으로 내보내기
Exporting your AutoCAD files in a more FreeCAD friendly format, like DXF R12 or R14, SVG, and if version supports it, IGES. All are better alternatives to the DWG format when using FreeCAD.

It is important to know that, contrarily to popular belief, there is no difference between the contents of a file saved in DWG or DXF formats, provided it is the same version (ex. DWG 2014 vs. DXF 2014). Both formats are maintained by Autodesk, and they both support exactly the same features. The difference is that DWG is closed (machine-encoded) while DXF is open.

Promote the use of alternative formats
간단히 말해, DWG 형식의 작업을 수락하는 것을 중지합니다. 실제로, 이것은 종종 말하기보다 쉽습니다. 그러나 가능하면 언제든지 FreeCAD 사용자와 지지자들이 DWG 형식을 피하고 거부하는 것은 나쁜 관행은 아닙니다.

New Perspectives
Following newest annoucements LibreDWG, the free/libre library for opening proprietary CAD files in the DWG file format, is revived.


 * http://libregraphicsworld.org/blog/entry/libredwg-revived-starts-getting-regular-releases
 * https://www.gnu.org/software/libredwg/
 * https://forum.freecadweb.org/viewtopic.php?f=8&t=39827&start=10

It remains to be seen what way hopefully the development with the necessary support will show.