Segment visual example

Show the segment visual.

Tags: segment, colormap, panzoom

Python code

import numpy as np

import datoviz as dvz


def generate_data():
    N = 16

    x = np.linspace(-1, 1, N).astype(np.float32) * 0.9
    y0 = -0.5
    y1 = 0.5
    z = 0.0

    initial = np.stack([x, np.full(N, y0), np.full(N, z)], axis=1).astype(np.float32)
    terminal = np.stack([x, np.full(N, y1), np.full(N, z)], axis=1).astype(np.float32)

    linewidths = np.linspace(2, 30, N).astype(np.float32)

    t = np.linspace(0, 1, N).astype(np.float32)
    colors = dvz.cmap('hsv', t, 0.0, 1.0)

    return N, initial, terminal, colors, linewidths


N, initial, terminal, color, linewidth = generate_data()

app = dvz.App()
figure = app.figure()
panel = figure.panel()
panzoom = panel.panzoom()

visual = app.segment(
    initial=initial,
    terminal=terminal,
    color=color,
    linewidth=linewidth,
    cap=('round', 'round'),
)
panel.add(visual)

app.run()
app.destroy()

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