{
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"cell_type": "markdown",
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"source": [
"# Color Scales Using Matplotlib's Colormap \n",
"\n",
"Use `scale_color_cmapmpl()`, `scale_fill_cmapmpl()`, or `scale_cmapmpl()` to extract colors from a colormap and apply them to your chart.\n",
"\n",
"If a colormap is registered with Matplotlib, you can access it by its name. Otherwise, you can pass a cmap object directly.\n",
"\n",
"**Note:** These functions require Matplotlib to be installed in your environment."
]
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"execution_count": 1,
"id": "f44cb9f5-5516-479d-affa-256e980ba092",
"metadata": {},
"outputs": [],
"source": [
"import numpy as np\n",
"from lets_plot import *"
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "8fdbc059-3ee7-4636-8687-499eacfff2d9",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
"\n",
" \n",
" \n",
" "
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"metadata": {},
"output_type": "display_data"
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],
"source": [
"LetsPlot.setup_html()"
]
},
{
"cell_type": "code",
"execution_count": 3,
"id": "6f7532e8-1d2f-4bbb-86c9-c951283f4d94",
"metadata": {},
"outputs": [],
"source": [
"np.random.seed(42)\n",
"n = 100\n",
"x = np.random.uniform(-1, 1, size=n)\n",
"y = 25 * x ** 2 + np.random.normal(size=n)\n",
"\n",
"p = ggplot({'x': x, 'y': y}) \\\n",
" + geom_point(aes(x='x', y='y', fill='y'), shape=21, size=7, color='white')\n"
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "42a30ed5-b719-4c1c-a64f-7caeb65c13be",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
" \n",
" "
],
"text/plain": [
""
]
},
"execution_count": 4,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"p + scale_fill_cmapmpl('magma')"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "095ea20f-98ae-4fe9-b2e9-ace9d5ae1027",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
" \n",
" "
],
"text/plain": [
""
]
},
"execution_count": 5,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"p + scale_fill_cmapmpl('Dark2')"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"language": "python",
"name": "python3"
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"name": "ipython",
"version": 3
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"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.8.19"
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