Heat Map

Chart type for visualizing matrix data in a two-dimensional grid.

import lightningchart as lc
import random

lc.set_license('my-license-key')

data = []
for i in range(1000):
    row = []
    value = 0
    adjacent_value = 0
    for j in range(1000):
        if i > 0:
            adjacent_value = data[i - 1][j]
        value = (value + adjacent_value) / 2 + (random.random() * 2) - 1
        row.append(value)
    data.append(row)

chart = lc.Heatmap(
    data=data,
    min_value=None,
    max_value=None,
    min_color=lc.Color(255, 255, 0),
    max_color=lc.Color(255, 0, 0),
    theme=lc.Themes.White,
    title='Heat Map',
    xlabel='x',
    ylabel='y'
)
chart.series.hide_wireframe()
chart.open()