LibreCAD 3 is a next generation 2D CAD application written to be modular, with a core independent from GUI toolkits. Scripting is possible with Lua.
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README.md

LibreCAD_3 Build status

LibreCAD 3 development (GSoC 2014) This is the new LibreCAD Kernel. With keeping in mind the extensibilty, modularity and the design, the LibreCAD is divided into 3 parts.

  1. The UI
  2. The kernel
  3. The CADViewer

Compilation Instructions

Required libraries

  1. cairo
  2. Pango
  3. Qt 5
  4. git
  5. liblog4cxx
  6. Google test
  7. Eigen 3
  8. Lua >= 5.2
  9. Curl
  10. Boost
  11. LibDxfRW (see compilation instruction after)

LibDxfRW compilation

git clone https://github.com/rvt/libdxfrw
cd libdxfrw
mkdir release
cd release
cmake -DCMAKE_BUILD_TYPE=Release ..
make
sudo make install

LibreCAD compilation

git clone --recursive https://github.com/LibreCAD/LibreCAD_3.git

mkdir build
cd build
cmake .. (for a release you would use cmake -DCMAKE_BUILD_TYPE=Release ..)
make -j 4
./lcUI/librecad

OSX MacPorts

If you want to fool around with macports use these build instructions

mkdir build
cd build
/opt/local/bin/cmake -DCMAKE_CXX_COMPILER=/opt/local/bin/g++ -DCMAKE_C_COMPILER=/opt/local/bin/gcc ..
make -j 4
./lcUI/librecad

For a release build you would do:

/opt/local/bin/cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_COMPILER=/opt/local/bin/g++ -DCMAKE_C_COMPILER=/opt/local/bin/gcc ..

OSX X-Code

If you like X-Code as your editor you can ask cmake to generate the build file for you. mkdir xcode cd build cmake -G Xcode ..

Then open the project in x-code and build. Under some conditions you might want to set a additional search path if libraries are not found, for example if you compile libdxfrw yourself.

X-Code add headers

When using ports I had to use:

cd /opt/local/include
sudo ln -sf eigen3/Eigen Eigen
sudo ln -sf eigen3/unsupported unsupported

any cmake guru care to comment on this oddity? Is there a way to prevent making that symlink?

Ubuntu/Mint

apt-get install qttools5-dev qttools5-dev-tools libqt5opengl5-dev liblua5.2-dev git g++ gcc-4.8 libcairo2-dev liblog4cxx10-dev libpango-1.0-0 libpango1.0-dev libboost-all-dev libqt5svg5 libgtest-dev libeigen3-dev libcurl4-gnutls-dev libgtk-3-dev

You need to compile Google Test in /usr/src/gtest/ and move the libraries in /usr/lib/

Ubuntu 14.xx

GCC version from Ubuntu 14 doesn't support C++14. You need to install GCC 4.9. http://askubuntu.com/a/456849

Windows

Bash for Windows 10

This is the only way to get LibreCAD running on Windows at the moment.

  1. Follow the instructions for Ubuntu 14.04.

  2. Install Xming or any other X server for Windows

  3. Enter export DISPLAY=:0 before running LibreCAD

MSYS2

pacman -S mingw-w64-x86_64-cairo mingw-w64-x86_64-pango mingw-w64-x86_64-lua mingw-w64-x86_64-eigen3 mingw-w64-x86_64-apr mingw-w64-x86_64-apr-util mingw-w64-x86_64-qt5 mingw-w64-x86_64-gtest

Log4CXX:

Use lastest code from repo : git://git.apache.org/log4cxx.git https://issues.apache.org/jira/browse/LOGCXX-463

Put the source in /third_party/apache-log4cxx

./autogen.sh
./configure
make
make install

LibreCAD:

mkdir build
cd build
cmake -DWINDOWS_MSYS2=ON ..

Create symlinks for .so files with ln -s ../lc*/lib*.so

Replace paths in build/lcUI/path.lua with Windows-style paths C:\msys64\…

Reading materials for feature usage

If we want to support associative drawings, this is a good introduction to get started http://www.ellenfinkelstein.com/acadblog/understanding-how-dimensions-are-associated-with-objects/

Some comment's created with

http://patorjk.com/software/taag/#p=display&c=c&f=Three%20Point&t=DimAligned

List of apparently awesome frameworks

https://github.com/fffaraz/awesome-cpp https://github.com/retuxx/tinyspline https://github.com/ebassi/graphene http://discourse.mcneel.com/c/opennurbs

If we are short of sample DXF files to test

http://cadkit.blogspot.nl/p/sample-dxf-files.html