{
"cells": [
{
"cell_type": "markdown",
"id": "a438d36c-99d6-4273-bce7-52f9830cd4b5",
"metadata": {},
"source": [
"# Check alpha/opacity effects"
]
},
{
"cell_type": "code",
"execution_count": 7,
"id": "2f0fc161-5877-45e2-9832-272213c0cc77",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
"\n",
" \n",
" \n",
" "
]
},
"metadata": {},
"output_type": "display_data"
}
],
"source": [
"from lets_plot import *\n",
"import re\n",
"\n",
"LetsPlot.setup_html() "
]
},
{
"cell_type": "code",
"execution_count": 8,
"id": "5623144c-99c3-4bf3-8ef3-0ccb3f83a171",
"metadata": {},
"outputs": [],
"source": [
"def text_plot(color, alpha):\n",
" rgba_alpha = None\n",
" m = re.match(r'rgba\\(\\s*\\d+\\s*,\\s*\\d+\\s*,\\s*\\d+\\s*,\\s*([0-9.]+)\\s*\\)', color)\n",
" if m:\n",
" rgba_alpha = float(m.group(1))\n",
" \n",
" label = f\"{rgba_alpha}\\n{alpha}\"\n",
" \n",
" return (\n",
" ggplot() +\n",
" geom_text(\n",
" x=0, y=0,\n",
" label=label,\n",
" size=24,\n",
" color=color,\n",
" alpha=alpha\n",
" ) +\n",
" theme_void() +\n",
" theme(panel_grid_major=element_line(size=4)) +\n",
" ggsize(300, 200)\n",
" )"
]
},
{
"cell_type": "code",
"execution_count": 9,
"id": "f6e42fd5-f76e-4a7d-9aad-3332b0e91c3d",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
" \n",
" "
],
"text/plain": [
""
]
},
"execution_count": 9,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"gggrid([\n",
" text_plot(color='rgba(255,0,0,0)', alpha=None),\n",
" text_plot(color='rgba(255,0,0,0)', alpha=0),\n",
" text_plot(color='rgba(255,0,0,0)', alpha=0.3),\n",
" text_plot(color='rgba(255,0,0,0)', alpha=1),\n",
" #\n",
" text_plot(color='rgba(255,0,0,0.3)', alpha=None),\n",
" text_plot(color='rgba(255,0,0,0.3)', alpha=0),\n",
" text_plot(color='rgba(255,0,0,0.3)', alpha=0.3),\n",
" text_plot(color='rgba(255,0,0,0.3)', alpha=1),\n",
" #\n",
" text_plot(color='rgba(255,0,0,0.6)', alpha=None),\n",
" text_plot(color='rgba(255,0,0,0.6)', alpha=0),\n",
" text_plot(color='rgba(255,0,0,0.6)', alpha=0.3),\n",
" text_plot(color='rgba(255,0,0,0.6)', alpha=1),\n",
" #\n",
" text_plot(color='rgba(255,0,0,1)', alpha=None),\n",
" text_plot(color='rgba(255,0,0,1)', alpha=0),\n",
" text_plot(color='rgba(255,0,0,1)', alpha=0.3),\n",
" text_plot(color='rgba(255,0,0,1)', alpha=1)\n",
"], ncol=4) + ggsize(600, 800) + ggtitle('If set, the alpha aesthetic overrides the alpha from the color')"
]
},
{
"cell_type": "code",
"execution_count": 10,
"id": "4c3df636-913c-4316-a4a3-1ae8ca3fd333",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
" \n",
" "
],
"text/plain": [
""
]
},
"execution_count": 10,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"# element_text\n",
"(ggplot({'x': [1, 2, 3], 'y': [2, 4, 3]}, aes('x', 'y'))\n",
" + geom_point(size=5)\n",
" + geom_line()\n",
" + labs(\n",
" title='Plot Title',\n",
" subtitle='Plot Subtitle',\n",
" caption='Plot Caption',\n",
" tag='A'\n",
" )\n",
" + theme(\n",
" plot_title=element_text(color=\"rgba(255,0,0, 0.3)\", size=28),\n",
" plot_subtitle=element_text(color=\"rgba(0,255,0, 0.3)\", size=24),\n",
" plot_caption=element_text(color=\"rgba(0,255,255, 0.3)\", size=22),\n",
" plot_tag=element_text(color=\"rgba(255,0,255, 0.3)\", size=30, face='bold')\n",
" )\n",
")"
]
},
{
"cell_type": "code",
"execution_count": 11,
"id": "83b44f3e-eaef-4019-a09d-23669464066d",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
" \n",
" "
],
"text/plain": [
""
]
},
"execution_count": 11,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"# geom_tile\n",
"(\n",
" ggplot({'x': [1, 2], 'y': [1, 1]}) \n",
" + geom_tile(\n",
" aes(x='x', y='y'), \n",
" color='rgba(0,0,0,0.2)', \n",
" size=2, \n",
" alpha = 0.3, \n",
" linetype=4\n",
" )\n",
")"
]
},
{
"cell_type": "code",
"execution_count": 12,
"id": "2b0c0af4-e63f-4771-b7af-484cde0b514d",
"metadata": {},
"outputs": [
{
"data": {
"text/html": [
" \n",
" "
],
"text/plain": [
""
]
},
"execution_count": 12,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"df = {\n",
" 'x': [0, 1, 2, 3],\n",
" 'y': [0, 0, 0, 0],\n",
" 'label': ['0%', '25%', '50%', '100%'],\n",
" 'color': ['#ff000000', '#ff000040', '#ff000080', '#ff0000ff'],\n",
"}\n",
"\n",
"(\n",
" ggplot(df, aes('x', 'y'))\n",
" + geom_text(aes(label='label', color='color'), size=16)\n",
" + scale_color_identity()\n",
" + ggsize(500, 180)\n",
")\n"
]
}
],
"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": "3.13.5"
}
},
"nbformat": 4,
"nbformat_minor": 5
}