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

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

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

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

git submodule init

git submodule update --recursive --remote

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

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 ..

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.

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?

apt-get install qttools5-dev qttools5-dev-tools libqt5opengl5-dev liblua5.2-dev git g++ gcc-4.8 libcairo2-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/

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

Install Visual Studio with:

• C++
• CMake for Windows
• Windows SDK

Download prebuilt Windows binaries for Boost from: https://sourceforge.net/projects/boost/files/boost-binaries/

Download Eigen 3 zip archive from https://gitlab.com/libeigen/eigen Unzip it on your disk (C:\local\eigen-3.3.7)

Download and install Qt (open source version) from https://www.qt.io/download You must select at least one version of Qt for the MSVC compiler

Download Windows binaries (dll15) here: https://sourceforge.net/projects/luabinaries/files/5.3.5/Windows%20Libraries/Dynamic/ Unzip it on your disk (C:\local\lua-5.3.5)

Download Windows binaries from glew.sourceforge.net Unzip this archive on your disk (C:\local\glew-2.1.0)

The GLEW_ROOT environment variable (in Windows) should be set to where the archive was extracted, in this case C:\local\glew-2.1.0

Clone libdxfrw repository Open it as a folder in Visual Studio:

• Build all
• Install DXFRW

Open project as folder in Visual Studio

In Project > CMake Settings, set the following CMake options, after adapting the paths to your environment:

-DBoost_ADDITIONAL_VERSIONS=1.71.0 
-DBoost_COMPILER=-vc142 
-DBOOST_LIBRARYDIR=C:\local\boost_1_71_0\lib64-msvc-14.2 
-DEIGEN3_ROOT=C:\local\eigen-3.3.7 
-DLIBDXFRW_PATH=C:\Users\ferag\Workspace\libdxfrw\out\install\x64-Debug 
-DWITH_LIBOPENCAD=OFF
-DGLEW_INCLUDE_DIR=C:\local\glew-2.1.0\include 
-DFREETYPE_LIBRARY=C:\local\freetype-2.10.1\win64\freetype.lib 
-DCMAKE_PREFIX_PATH=C:\Qt\5.13.1\msvc2017_64\lib\cmake 
-DCMAKE_LIBRARY_PATH=C:\Qt\5.13.1\msvc2017_64\lib 
-DWITH_LUACMDINTERFACE=FALSE 
-DWITH_RENDERING_UNITTESTS=OFF 
-DWITH_CAIRO=OFF 
-DOPENGL_INCLUDE_DIR=C:\local\glm-0.9.9.6 
-DWITH_UNITTESTS=OFF

-DBoost options were added because the latest version of Boost wasn't supported by CMake. They may not be necessary anymore.

Add the folders containing the .dll files in your PATH environment variable

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/

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

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

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