maliput_drake

Description

A clone of drake's trajectory integration support for maliput backends.

Note: For full information about Maliput please visit Maliput Documentation.

Installation

Supported platforms

Ubuntu Focal Fossa 20.04 LTS.

Binary Installation on Ubuntu

See Installation Docs.

Source Installation on Ubuntu

Prerequisites

sudo apt install python3-rosdep python3-colcon-common-extensions

Build

1. Create colcon workspace if you don't have one yet.

   mkdir colcon_ws/src -p

2. Clone this repository in the src folder

   cd colcon_ws/src
   git clone https://github.com/maliput/maliput_drake.git

3. Install package dependencies via rosdep

   export ROS_DISTRO=foxy
   

   rosdep update
   rosdep install -i -y --rosdistro $ROS_DISTRO --from-paths src

4. Build the package

   colcon build --packages-up-to maliput_drake

For further info refer to Source Installation on Ubuntu

How to copy drake into maliput_drake?

Copying files

Follow this tentative guide (it may change release to release) to copy files from a drake release to this package:

1. Clone drake and point it to a specific release tag, e.g. v0.33.0:

git clone --depth 1 --branch v0.33.0 [email protected]:RobotLocomotion/drake.git $DRAKE_WS/drake

Please note the use of DRAKE_WS which is the path to drake's workspace. You might want to create a docker container to run and configure drake on it but not necessarily place it inside maliput workspace to avoid any dependency collision.

2. Follow the instructions for the release to prepare the environment and install drake dependencies.

3. Derive which dependencies are necessary up to antiderivative_function and scalar_initial_value_problem:

cd $DRAKE_WS/drake
bazel query 'deps(//systems/analysis:antiderivative_function)' | sed -e 's#:.*##g;' | sort | uniq
bazel query 'deps(//systems/analysis:scalar_initial_value_problem)' | sed -e 's#:.*##g;' | sort | uniq

4. Create a new branch in this repo (maliput_drake) to update the files.

cd src/maliput_drake
git checkout -b username/bump_to_drake_v0.33.0

5. Remove the previous contents of the folders in maliput_drake/src and maliput_drake/include:

find maliput_drake/src/ -name "*.cc" -type f -delete
find maliput_drake/include/ -name "*.h" -type f -delete

6. Copy the source files to the respective maliput_drake/src folder and the header files to the respective maliput_drake/include/maliput folder.

7. Make sure you remove unnecessary files:

maliput_drake/include/maliput/drake/common/drake_path.h
maliput_drake/include/maliput/drake/common/filesystem.h
maliput_drake/include/maliput/drake/common/find_loaded_library.h
maliput_drake/include/maliput/drake/common/find_resource.h
maliput_drake/include/maliput/drake/common/find_runfiles.h
maliput_drake/include/maliput/drake/common/temp_directory.h
maliput_drake/include/maliput/drake/systems/analysis/bogacki_shampine3_integrator.h
maliput_drake/include/maliput/drake/systems/analysis/implicit_euler_integrator.h
maliput_drake/include/maliput/drake/systems/analysis/implicit_integrator.h
maliput_drake/include/maliput/drake/systems/analysis/lyapunov.h
maliput_drake/include/maliput/drake/systems/analysis/monte_carlo.h
maliput_drake/include/maliput/drake/systems/analysis/radau_integrator.h
maliput_drake/include/maliput/drake/systems/analysis/region_of_attraction.h
maliput_drake/include/maliput/drake/systems/analysis/runge_kutta2_integrator.h
maliput_drake/include/maliput/drake/systems/analysis/runge_kutta5_integrator.h
maliput_drake/include/maliput/drake/systems/analysis/semi_explicit_euler_integrator.h
maliput_drake/include/maliput/drake/systems/analysis/simulator.h
maliput_drake/include/maliput/drake/systems/analysis/simulator_config.h
maliput_drake/include/maliput/drake/systems/analysis/simulator_config_functions.h
maliput_drake/include/maliput/drake/systems/analysis/simulator_gflags.h
maliput_drake/include/maliput/drake/systems/analysis/simulator_print_stats.h
maliput_drake/include/maliput/drake/systems/analysis/simulator_status.h
maliput_drake/include/maliput/drake/systems/analysis/velocity_implicit_euler_integrator.h
maliput_drake/src/common/add_text_logging_gflags.cc
maliput_drake/src/common/drake_path.cc
maliput_drake/src/common/filesystem.cc
maliput_drake/src/common/find_loaded_library.cc
maliput_drake/src/common/find_resource.cc
maliput_drake/src/common/find_runfiles.cc
maliput_drake/src/common/find_runfiles_stub.cc
maliput_drake/src/common/resource_tool.cc
maliput_drake/src/common/temp_directory.cc
maliput_drake/src/systems/analysis/bogacki_shampine3_integrator.cc
maliput_drake/src/systems/analysis/explicit_euler_integrator.cc
maliput_drake/src/systems/analysis/implicit_euler_integrator.cc
maliput_drake/src/systems/analysis/implicit_integrator.cc
maliput_drake/src/systems/analysis/lyapunov.cc
maliput_drake/src/systems/analysis/monte_carlo.cc
maliput_drake/src/systems/analysis/radau_integrator.cc
maliput_drake/src/systems/analysis/runge_kutta2_integrator.cc
maliput_drake/src/systems/analysis/runge_kutta5_integrator.cc
maliput_drake/src/systems/analysis/semi_explicit_euler_integrator.cc
maliput_drake/src/systems/analysis/simulator.cc
maliput_drake/src/systems/analysis/simulator_config.cc
maliput_drake/src/systems/analysis/simulator_config_functions.cc
maliput_drake/src/systems/analysis/simulator_gflags.cc
maliput_drake/src/systems/analysis/simulator_status.cc
maliput_drake/src/systems/analysis/velocity_implicit_euler_integrator.cc
maliput_drake/src/systems/analysis/region_of_attraction.cc
maliput_drake/src/systems/analysis/simulator_print_stats.cc

8. Removes the following method from maliput_drake/src/common/drake_assert_and_throw.cc.

   extern "C" void drake_set_assertion_failure_to_throw_excepts()

   To avoid having duplicated references in systems where both maliput_drake and drake are installed.

9. Update the CMakeLists.txt under maliput_drake/src/ for the library targets. Make sure all source files are properly listed.

10. To avoid having duplicated definitions in systems where both maliput_drake and drake are installed, rename the following definitions from maliput_drake/src/common/drake_throw.h and maliput_drake/src/common/drake_assert.h.

    DRAKE_THROW_UNLESS to MALIPUT_DRAKE_THROW_UNLESS
    DRAKE_DEMAND to MALIPUT_DRAKE_DEMAND
    DRAKE_ASSERT_VOID to MALIPUT_DRAKE_ASSERT_VOID
    DRAKE_ASSERT to MALIPUT_DRAKE_ASSERT
    DRAKE_UNREACHABLE to MALIPUT_DRAKE_UNREACHABLE
    DRAKE_DISABLE_ASSERTS to MALIPUT_DRAKE_DISABLE_ASSERTS
    DRAKE_ENABLE_ASSERTS to MALIPUT_DRAKE_ENABLE_ASSERTS
    DRAKE_ASSERT_IS_DISARMED to MALIPUT_DRAKE_ASSERT_IS_DISARMED
    DRAKE_ASSERT_IS_ARMED to MALIPUT_DRAKE_ASSERT_IS_ARMED
    

    And replace all the occurrences.

11. Commit all the changes.

12. Run the steps listed in the Namespacing section. Make a new commit per change.

13. Test the workspace before making a PR.

Namespacing

The following transformations are necessary to successfully namespace copied files:

1. Replace occurrences of namespace drake by namespace maliput::drake.
2. Replace occurrences of ::drake by ::maliput::drake.
3. Replace occurrences of #include "drake/ by #include "maliput/drake.
4. Replace occurrences of <drake:: by <maliput::drake.
5. Replace occurrences of (drake:: by (maliput::drake::.
6. Replace occurrences of drake:: by maliput::drake.
7. Replace occurrences of <::drake by <::maliput::drake.

Build

1. Setup a maliput_drake (or a wider maliput) development workspace as described here.

2. Bring up your development workspace:

cd path/to/my/workspace
source /opt/ros/$ROS_DISTRO/setup.sh

where $ROS_DISTRO could be either foxy or dashing.

3. Build maliput_drake packages and their dependencies:

   colcon build --packages-up-to maliput_drake

Use maliput_drake as a dependency

Installed targets

The following targets are installed and can be used when adding maliput_drake as an ament dependency.

• maliput_drake::common
• maliput_drake::trajectories
• maliput_drake::math
• maliput_drake::analysis
• maliput_drake::framework

All of them are shared libraries.

Adding maliput_drake to you package.xml

When creating the ament package, make sure to add maliput_drake to your package.xml:

<depend>maliput_drake</depend>

Finding the package

In your project, add the following to your CMakeLists.txt file to import the package:

find_package(maliput_drake REQUIRED)

Export the ament dependency

Make sure to export the dependency as follows:

ament_export_dependencies(maliput_drake)

Linking against the libraries

To link against one or man of the aforementioned targets, simply do the following:

target_link_libraries(
  my_fancy_target
    PUBLIC # PRIVATE
    maliput_drake::analysis
    maliput_drake::common
    maliput_drake::framework
    maliput_drake::math
    maliput_drake::trajectories
)

Prefer PRIVATE linkage when possible to avoid any unneeded exposure of drake-specific types.

For development

It is recommended to follow the guidelines for setting up a development workspace as described here.

Contributing

Please see CONTRIBUTING page.

License