Use PyQtGraph to plot data

[Giulero]

This PR introduces the use of PyQtGraph to plot the data. Ideally, this can be used in place of matplotlib for faster execution and might be used for real-time logging, see #80.

New functionality:

• robot_log_visualizer/plotter/pyqtgraph_viewer_canvas.py: Added a new class PyQtGraphViewerCanvas to visualize data with PyQtGraph. This class includes methods for initializing the canvas, updating plots, handling mouse clicks for annotations, and controlling animation.

Enhancements to existing functionality:

• robot_log_visualizer/plotter/color_palette.py: Added a __call__ method to the ColorPalette class, allowing it to be used as a callable for retrieving colors by index.

[Copilot]

Pull Request Overview

This PR introduces a new PyQtGraph canvas component to plot data in real-time, replacing matplotlib for improved performance in real-time logging. Key changes include:

• Adding the PyQtGraphViewerCanvas class with plotting, animation, and annotation functionality.
• Enhancing color_palette by enabling it to be used as a callable to retrieve colors.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
robot_log_visualizer/plotter/pyqtgraph_viewer_canvas.py	New canvas class using PyQtGraph with animation and annotation.
robot_log_visualizer/plotter/color_palette.py	Added a call method to retrieve colors via a callable interface.

Comments suppressed due to low confidence (1)

robot_log_visualizer/plotter/pyqtgraph_viewer_canvas.py:3

• Duplicate import of 'pyqtgraph' detected. Please remove the redundant import statement to keep the code clean and avoid potential confusion.

import pyqtgraph as pg

[Copilot]

The approach to determine inactive paths by splitting the stored key and comparing it to the paths input may lead to mismatches. Consider using a consistent representation such as comparing the joined strings (e.g., checking if p is not in ["/".join(path) for path in paths]) to reliably remove curves.

Suggested change

	paths_to_remove = [p for p in self.active_paths if p.split('/') not in paths]
	active_path_strings = {"/".join(path) for path in paths}
	paths_to_remove = [p for p in self.active_paths if p not in active_path_strings]

[traversaro]

I guess we need to add pyqtgraph to the dependencies in

robot-log-visualizer/setup.cfg

Line 42 in 1a61360

install_requires =

?

[GiulioRomualdi]

I guess we need to add pyqtgraph to the dependencies in

robot-log-visualizer/setup.cfg

Line 42 in 1a61360

install_requires =

?

Yes! In the future, we can also move to the toml configuration

[Giulero]

I guess we need to add pyqtgraph to the dependencies in

robot-log-visualizer/setup.cfg

Line 42 in 1a61360

install_requires =

?

Sure! Done with d3ef505

[Giulero]

For now in 1772740 i substituted the MaplotlibViewerCanvas with the PyQtGraphViewerCanvas, but with could think of a logic that allows the user to choose one or another.

[Copilot]

Copilot reviewed 4 out of 5 changed files in this pull request and generated 1 comment.

Files not reviewed (1)

• setup.cfg: Language not supported