RAI online plotting

[MaximilienNaveau]

Problem

The rqt_plot is not very reliable (rostopics are not properly real_time creating huge computation time peak). In order to change tools I would love to have the RAI (Robot Analysis Infrastructure) being on online tool. For this we need to tackle a couple of problems:

• The traces(data buffer for logging) are stored in a simple memory that is accessible only after the data has been dumped.
• The RAI system only loads files currently

Potential Solution

• We need to create a tracer that stores data in a shared memory
• We need a shared memory python client that will load the data from the shared memory
• We need a ROS node that publish the shared memory data into ROS using low bandwidth but still 1Khz data.
• We need a RAI client that will load the data from ROS or the shared memory directly

[jviereck]

Should this issue move to the RAI issue tracker?