Chrono now uses Eigen3 for all of its internal dense linear algebra needs. Chrono requires Eigen version 3. The free CMake utility is used to manage the building process.
For Visual Studio users: make sure to put the CMake executable in your Path environmental variable the installer can do this for you. For Xcode users: the CMake. After installing the home brew package manager type: brew install cmake in the terminal. Assuming you are using SourceTree :.
While Chrono::Irrlicht is an optional module and not required to begin modeling with Chrono, it is suggested you enable this module to get access to many Chrono demos which rely on Irrlicht for their run-time visualization. The libIrrlicht. It can be used from here, but it is better to copy it to irrlicht After copying type:. We assume that you are using the graphical interface. At this point you just created a project that will be later used to build Chrono.
You can close CMake. Contact us. ProjectChrono is open-source, hosted at Github.
Building from the IDE
A summary of the process required to build Chrono is provided in the picture below. The initial release of Visual Studio gives an error compiling Chrono. Upgrade to update 2 to fix this problem. After CMake has finished running, proceed to use IDE project files or start the build from the build directory:.
The --build option tells cmake to invoke the underlying build tool make, ninja, xcodebuild, msbuild, etc. The underlying build tool can also be invoked directly of course, but the cmake --build command is more portable. On unix systems with make or ninja you can speedup the build with cmake --build.
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There are two main methods of installing ROOT from source: location independent and fix location. The former is advised for a personal installation of ROOT, while the later for a system wide installation. The later requires in addition to set the gnuinstall option at configuration. The full list is described in the variables section. While to use the fix location installation you do not need to set any environment to run root.
The --target option with install parameter in addition to the --build option tells cmake to build the 'install' target.
This is equivalent to make install for Unix systems. Please note that some of the options might be turned OFF automatically for some platforms or if the required external library or component can not be satisfied. The user can view and edit the full list of options using the ccmake utility or cmake-gui for Windows.
Note that some of the options are not yet implemented. The user can set any CMake variable or option that controls the build process from the cmake command line.
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CMake can generate, in addition to standard makefiles, specific proejcts for various integrated development environments IDEs such as Xcode, Eclipse, Visual Studio, etc.. The available generators depend on the platform for which cmake have been build. To see the list of available generators do cmake --help.
Open the generated file with the Xcode application.
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The list of externals depends on the build options that have been enabled. CMake will look for these third party products at a number of standard places in your system but the user can influence the search by setting some environment variables before invoking the CMake command or by setting package specific CMake variables to their exact location. The actual cached values used by CMake for the exact location of libraries and include files of the used external libraries can be inspected and modified using the ccmake utility. CMake comes with extensive documentation, in the form of html files, and as online help accessible via the cmake executable itself.
Execute cmake --help for further help options. CMake allows you to specify a build tool e. If not specified on the command line, CMake tries to guess which build tool to use, based on your environment. Once it has identified your build tool, CMake uses the corresponding Generator to create files for your build tool e. You can explicitly specify the generator with the command line option -G "Name of the generator". To see a list of the available generators on your system, execute. For this reason, you should enter them exactly as they are listed in the cmake --help output, in quotes.
For example, to generate project files specifically for Visual Studio 12, you can execute:. For a given development platform there can be more than one adequate generator. By default, CMake chooses the most specific generator supported by your development environment. If you want an alternative generator, you must tell this to CMake with the -G option. Variables customize how the build will be generated.