Glyph visual example¶
Show the glyph visual.
Tags: glyph, colormap, panzoom
import numpy as np
import datoviz as dvz
app = dvz.App()
figure = app.figure()
panel = figure.panel()
panzoom = panel.panzoom()
# Define the strings and string parameters.
strings = ['Hello world'] * 8
string_count = len(strings)
glyph_count = sum(map(len, strings))
string_pos = np.zeros((string_count, 3), dtype=np.float32)
string_pos[:, 0] = -0.8
string_pos[:, 1] = 1 - 1.8 * np.linspace(0.3, 1, string_count) ** 2
scales = np.linspace(1, 4, string_count).astype(np.float32)
# Per-glyph parameters.
colors = dvz.cmap('hsv', np.mod(np.linspace(0, 2, glyph_count), 1))
visual = app.glyph(font_size=30)
visual.set_strings(strings, string_pos=string_pos, scales=scales)
visual.set_color(colors)
panel.add(visual)
app.run()
app.destroy()