{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "from lets_plot import *\n",
    "\n",
    "LetsPlot.setup_html()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "data = {'x':[1,3,5], 'y':[0,0,0], 'z': [1,2,3]}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# size_unit forces visible size of point with Aes.size == 1 to be equal to the unit of given scale.\n",
    "ggplot(data) + geom_point(aes(x='x', y='y'), size = 1, size_unit='x')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# as previous, but with size = 2\n",
    "ggplot(data) + geom_point(aes(x='x', y='y'), size = 2, size_unit='x')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# size = 0.4 , size_unit = 'y'\n",
    "ggplot(data) + geom_point(aes(x='x', y='y'), size = 0.4, size_unit='y')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "#with size and color mapped to z and scale_size_identity\n",
    "ggplot(data) + geom_point(aes(x='x', y='y', size='z', color = 'z'), size_unit='x') + scale_size_identity()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "#as previous example, but without scale_size_identity\n",
    "ggplot(data) + geom_point(aes(x='x', y='y', size='z', color='z'), size_unit='x')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# size_unit for text fits 5 symbol string to given axis unit \n",
    "ggplot(data) + geom_text(aes(x='x', y='y', label='x'), size = 1, size_unit='x', label_format='.2f')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# as previous, but size_unit = 'y' + angle = 90\n",
    "ggplot(data) + geom_text(aes(x='x', y='y', label='x'), size = 1, size_unit='y', label_format='.2f', angle=90)"
   ]
  }
 ],
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