Text and annotations

ax.text and ax.annotate with an arrow.

Live figure — pick a tool, then zoom, pan, point-pick or annotate. Nothing is active until a tool is selected.

View this figure’s Vega export ↗ — the raw JSON spec, rendered live by a real Vega engine.

View this figure’s Vega-Lite export ↗ — the raw JSON spec(s), rendered live by a real Vega-Lite engine.

import numpy as np
import plotpress

x = np.linspace(0, 10, 200)
y = np.sin(x) * np.exp(-x / 8)
fig, ax = plotpress.subplots()
ax.plot(x, y)
i = int(np.argmax(y))
# Annotation text does not expand the axis limits, so placing it above the peak
# put it outside the axes box and on top of the title. Offset downward instead.
ax.annotate("peak", xy=(x[i], y[i]), xytext=(x[i] + 2, y[i] - 0.18),
            arrowprops={"color": "#d62728"})
ax.text(6, -0.3, "damped sine", color="#555")
ax.set_title("Annotations")
fig.tight_layout()