Chart Widget Example
Demonstrates Cartesian plotting with interactive styling and configuration.
Trends and patterns are invisible in raw logs. Charts visualize X/Y datasets to reveal the story behind the data.
Features Demonstrated
-
Dataset Types: Line charts and Scatter plots.
-
Markers: Braille patterns, dots, blocks, and bars.
-
Axis Configuration: Controlling labels, bounds, and alignment (Left/Center/Right).
-
Legend: Positioning the legend in any of the four corners or hiding it based on constraints.
Hotkeys
-
m: Cycle Marker Type (
marker) -
s: Cycle Dataset Style (
style) -
x: Cycle X-Axis Alignment (
labels_alignment) -
y: Cycle Y-Axis Alignment (
labels_alignment) -
l: Cycle Legend Position (
legend_position) -
q: Quit
Usage
ruby examples/widget_chart_demo/app.rb
Learning Outcomes
Use this example if you need to… - Plot real-time data monitoring (CPU history, request latency). - Visualize mathematical functions. - Compare multiple datasets on the same axis.
