{
"cells": [
{
"cell_type": "markdown",
"id": "2a51cb88-6706-4266-a2c0-794dad6ef810",
"metadata": {},
"source": [
"# Customizing `geom_pie()`\n",
"Two new parameters have been added to the `geom_pie()` function:\n",
"\n",
"- `direction`: Controls the sector layout, allowing it to be drawn either clockwise or counterclockwise.\n",
"- `start`: Specifies the starting angle of the pie chart in degrees."
]
},
{
"cell_type": "code",
"execution_count": 1,
"id": "83168fbc-3b0d-4899-998b-5339d4edc47f",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
"\n",
" \n",
" \n",
" "
]
},
"metadata": {},
"output_type": "display_data"
}
],
"source": [
"from lets_plot import *\n",
"LetsPlot.setup_html()\n",
"\n",
"data = {\n",
" 'name': ['a', 'b', 'c', 'd', 'b'], \n",
" 'value': [ 40, 90, 10 , 50, 20]}\n",
"p = ggplot(data, aes(fill='name', weight='value')) "
]
},
{
"cell_type": "markdown",
"id": "a7e003fa-b531-498a-abdc-f80aaf1d85ca",
"metadata": {},
"source": [
"By default, the first sector is positioned counterclockwise from the start point (12 o’clock), while the remaining sectors are arranged clockwise."
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "d97a17aa-aaa6-4c00-b52e-3d728f12d7b3",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
" \n",
" "
],
"text/plain": [
""
]
},
"execution_count": 2,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"p + geom_pie(size=.6, size_unit='x') + ggtitle('geom_pie()')"
]
},
{
"cell_type": "markdown",
"id": "4382ac18-b018-4ed5-97ea-32fa2c7c0a37",
"metadata": {},
"source": [
"### `direction`\n",
"Use `1` for clockwise (default) or `-1` for counterclockwise."
]
},
{
"cell_type": "code",
"execution_count": 3,
"id": "10042f4d-0ff8-44e6-a287-baa77c8c3088",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
" \n",
" "
],
"text/plain": [
""
]
},
"execution_count": 3,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"p + geom_pie(size=.6, size_unit='x', direction=-1) + ggtitle('geom_pie(direction=-1)')"
]
},
{
"cell_type": "markdown",
"id": "e59fde8d-9125-4026-aaca-cd883ece4f22",
"metadata": {},
"source": [
"### `start`\n",
"Defines the initial angle in degrees. Setting `start = 0` disables the default layout."
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "2070d067-21a6-4d22-87d4-26fff9c700ec",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
" \n",
" "
],
"text/plain": [
""
]
},
"execution_count": 4,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"dump_plot(gggrid([\n",
" p + geom_pie(size=.9, size_unit='x') + ggtitle('Default'),\n",
" p + geom_pie(size=.9, size_unit='x', start=0) + ggtitle('start=0'),\n",
" p + geom_pie(size=.9, size_unit='x', start=180) + ggtitle('start=180'),\n",
" p + geom_livemap() + geom_pie() + ggtitle('Default'),\n",
" p + geom_livemap() + geom_pie(start=0) + ggtitle('start=0'),\n",
" p + geom_livemap() + geom_pie(start=180) + ggtitle('start=180')\n",
"], ncol=3))"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "f63ae9fb-537b-4373-86e9-58c9d24a2716",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
" \n",
" "
],
"text/plain": [
""
]
},
"execution_count": 5,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"gggrid([\n",
" p + geom_livemap() + geom_pie() + ggtitle('Default'),\n",
" p + geom_livemap() + geom_pie(start=0) + ggtitle('start=0'),\n",
" p + geom_livemap() + geom_pie(start=180) + ggtitle('start=180')\n",
"])"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "82794766-a3b6-49af-9389-574495d3e470",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.12.8"
}
},
"nbformat": 4,
"nbformat_minor": 5
}