How to visually debug a curve

[pomerlef]

Soon, we will have to drop a file somewhere and asses the quality of the curve (at least for the Euclidean space). Here are possibilities that came up at the last meeting:

• VTK (Paraview, Meshlab)
• PLY (Meshlab)
• csv (Matlab, python)
• python + ros (rviz)

Some extra questions/thoughts:

• A generic way is to use the evaluate() method to densely represent the curve in space, which would be draw as points connected with lines.
• How to add extra information on a given state?

[furgalep]

My current system is https://github.com/ethz-asl/rviz_pyplot.

I find VTK complicated and unusable. Maybe Francois, you can help with that.

Matlab isn't great for 3d plotting.