Importing data from CSV files

[dmiklic]

First of all, thanks a lot for a great tool!

So far, I have been using PlotJuggler with rosbags and it has worked flawlessly. Now I'm trying to use it with .csv files and I can't quite figure out how the importing works. I'm using version 1.0.4 installed from the ROS Kinetic apt package ros-kinetic-plotjuggler.

For example, I create a .csv file in Pandas using the following commands:

import pandas as pd
import matplotlib as plt
df = pd.DataFrame(np.random.randn(6,4), index=[1,2,3,4,5,6], columns=list('ABCD'))
df.to_csv('test.csv')

the output is this file (the extension has been changed to .txt because GitHub does not support attaching .csv files to issues). When loading the data into PlotJuggler, I get the following warning:

Selected time in not strictly  monotonic. Do you want to abort?
(Clicking "NO" you continue loading)

When clicking No I can see the data in the left pane, however, when trying to plot the data against the index vector, i.e., right-dragging the index vector to the plot pane and then left-dragging the data columns, this is the result I get:

Btw. I did maximize both the vertical and the horizontal zoom. When maximizing the vertical zoom, the following gets printed to the console from which I started PlotJuggler:

invalid X0/X1 range in PlotWidget::maximumRangeY
invalid X0/X1 range in PlotWidget::maximumRangeY
invalid X0/X1 range in PlotWidget::maximumRangeY
invalid X0/X1 range in PlotWidget::maximumRangeY

I expect to see this plot:

which is what I get by:

df.plot()
plt.show()

Am I missing something obvious?

[facontidavide]

I will take a look at it.

Cheers

[facontidavide]

Fixed. There was a bug and also a small issue related to the fact that your first column doesn't have a name.
I modified the code to insert a name like Column# when needed

[dmiklic]

Wow, that was quick! Thanks a lot, problem solved :)