Slice: several meshes scrubbed together

Meshes that share a grid can be sliced in lockstep. With Link all matching axes on, one slider at the bottom of the figure drives every compatible axes at once, so the same row is compared across all of them – the natural way to ask “how does this cut change from one condition to the next?”.

Four snapshots of a diffusing hot spot at increasing times sit on one grid. Drag the shared slider: the four strips show the same row, and the peak visibly flattens and widens from the first panel to the last. Every strip uses the colour scale’s range ("range": "colorbar"), so heights are comparable between panels and do not rescale as the slider moves – without it each strip would zoom to its own row and the flattening would be hidden.

Axes with different grids are not linked together; each keeps its own slider.

options={"slice": {"enabled": True, "link_all": True, "range": "colorbar"}}

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import numpy as np
import plotpress

x = np.linspace(-5, 5, 81)
y = np.linspace(-5, 5, 81)
X, Y = np.meshgrid((x[:-1] + x[1:]) / 2, (y[:-1] + y[1:]) / 2)
times = [0.2, 0.6, 1.5, 3.0]

fig, axs = plotpress.subplots(2, 2, figsize=(8, 7))
for ax, t in zip(axs.ravel(), times):
    heat = np.exp(-(X ** 2 + Y ** 2) / (4 * t)) / t
    mesh = ax.pcolormesh(x, y, heat, cmap="inferno", vmin=0, vmax=5)
    ax.set_title(f"t = {t:g}")
fig.colorbar(mesh, ax=list(axs.ravel()), label="temperature")

_gallery_interactive_options = {"slice": {
    "enabled": True, "link_all": True, "range": "colorbar", "index": 40}}