[jsk_rviz_plugins] Add "Align Bottom" option to OverlayText

[YutoUchimi]

This PR mainly focuses on improving visualization of ROS console output on Rviz.

1. Align Bottom option

Before this PR, OverlayText plugin showed text only at the top of the window.

With this PR, users can select the place of drawn text by toggling AlignBottom checkbox.

2. ~reverse_lines parameter

This PR also supports a new parameter in rosconsole_overlay_text.py.
In default, the order of output messages shown in rviz is reversed. For example,

2018/12/14 17:57:42 baz
2018/12/14 17:57:41 bar
2018/12/14 17:57:40 foo

However, if set this paramter to false, you will see

2018/12/14 17:57:40 foo
2018/12/14 17:57:41 bar
2018/12/14 17:57:42 baz

---

Progress

• Add align bottom option
• Support reversing lines
• Add documentation

[k-okada]

I can not see 'Align Bottom" option' on doc/jsk_rviz_plugins/nodes/images/rosconsole_overlay_text.png

[YutoUchimi]

@k-okada Thank you for your comment.
I updated the image just now.

[k-okada]

seems much better for me, what the reason not to use this image ?

[YutoUchimi]

That image is not the result of roslaunch jsk_rviz_plugins overlay_sample.launch.
This is why I don't use it, but I won't stick to my rule. So I will update to use the image you suggested.

[k-okada]

ok, if so, please increase the number of vertical line of overlay_sample.launch, so that uses can easy understand the effect of 'Align bottom'

…

-- ◉ Kei Okada

-- ◉ Kei Okada 2018年12月17日(月) 17:59 Yuto Uchimi <notifications@github.com>:

That image is not the result of roslaunch jsk_rviz_plugins overlay_sample.launch. This is why I don't use it, but I won't stick to my rule. So I will update to use the image you suggested. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.