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[tf2_tools] Add graphviz as a runtime dependency #483

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Dec 8, 2021
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@aprotyas aprotyas commented Dec 7, 2021

This PR is an alternative to backporting #351 since that requires
tf2_ros_py, among other difficulties.

Without this runtime dependency, the subprocess used to invoke the dot
utility that ships with graphviz silently dies, and a frames.pdf
file is not generated.

Closes #482.

Signed-off-by: Abrar Rahman Protyasha aprotyas@u.rochester.edu

Without this runtime dependency, the subprocess used to invoke the `dot`
utility that ships with `graphviz` silently dies, and a `frames.pdf`
file is not generated.

Signed-off-by: Abrar Rahman Protyasha <aprotyas@u.rochester.edu>
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aprotyas commented Dec 8, 2021

CI:
Repos file: https://gist.githubusercontent.com/aprotyas/7c810fb40faec169647f6135da7e47a0/raw/2eff62c135065116c1af5304280f23fa10141c7a/ros2.repos
Build args: --packages-up-to tf2_tools
Test args: --packages-select tf2_tools
Job: https://ci.ros2.org/job/ci_launcher/9465/

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aprotyas commented Dec 8, 2021

Green CI + approval, so I'll merge this PR.

@aprotyas aprotyas merged commit 2fe7d2a into foxy Dec 8, 2021
@delete-merged-branch delete-merged-branch bot deleted the aprotyas/fix/482 branch December 8, 2021 20:02
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tf2_tools view_frames.py produces no pdf and prints result to command line instead
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