New teleop plugin implementation.

[LolaSegura]

Signed-off-by: LolaSegura lsegura@ekumenlabs.com

🎉 New feature

Closes #186

Summary

The user can insert the GUI teleop plugin in a world that has a vehicle and setting a desire topic, can send commands by pressing buttons, using the keyboard or with sliders.

Test it

You can test it loading a world in ignition gazebo that has a vehicle like ign gazebo diff_drive_skid.sdf, selecting the Teleop plugin, configuring the desired topic to send the twist commands, /model/vehicle_blue/cmd_vel.

OpenPlugin.mp4

To try the buttons, you have to set the desired linear and angular velocity and then click on the direction buttons. More than one button can be selected in order to rotate while moving forward or backward.

To try the keyboard, first you have to enable it by clicking on the "keyboard" switch. The keys are W, A, D, X.

To use the sliders you have to enable them by clicking on the "Sliders" switch. The maximum and minimum velocity are configurable.

MovingCar.mp4

Checklist

• Signed all commits for DCO
• Added tests
• Added example and/or tutorial
• Updated documentation (as needed)
• Updated migration guide (as needed)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

[francocipollone]

I will review it, in the meantime @LolaSegura is working on the tests

[codecov]

Codecov Report

Merging #245 (7d73aee) into ign-gui3 (50c6253) will increase coverage by 0.74%.
The diff coverage is 85.08%.

@@             Coverage Diff              @@
##           ign-gui3     #245      +/-   ##
============================================
+ Coverage     65.71%   66.46%   +0.74%     
============================================
  Files            23       25       +2     
  Lines          2835     2949     +114     
============================================
+ Hits           1863     1960      +97     
- Misses          972      989      +17     

Impacted Files	Coverage Δ
src/plugins/teleop/Teleop.cc	84.95% <84.95%> (ø)
src/plugins/teleop/Teleop.hh	100.00% <100.00%> (ø)

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[francocipollone]

Nice job!

The first iteration is done. I haven't review the test file yet.

[chapulina]

Well done! That's a lot of features!

[francocipollone]

@LolaSegura Nice Job!: Some general comments.

• While testing the plugin I solved one bug that only happens when the first message was sent. The first message was missed. I also fix a minor reference in the qml code. I pushed the commit: 3543cde
• Please take a look at the unresolved conversations and if they are addressed add a comment
• Check that your last commit is unverified.

[francocipollone]

I left some more comments mainly related to the test file.

[francocipollone]

Good job!, I left some nits!

[chapulina]

Thanks, looking good! I pushed some changes in 8328a17 which I hope will fix the Windows build.