cartographie_TP_5.ipynb

{
 "cells": [
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Cartographie TP 5"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<font color='red'> Écrire votre nom </font>"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "*ici*"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Cartographie et données structurées\n",
    "\n",
    "On trouve de nombreux sites qui proposent visualiser des données sur des cartes.\n",
    "\n",
    "Le programme ci-dessous affiche sur une carte les localisations des tremblements de terre de magnitudes supérieures à 2.5 (pour le mois dernier)\n",
    "\n",
    "Les bibliothèques utilisées :\n",
    "* csv pour le traitement des fichiers de données csv\n",
    "* requests pour le chargement de fichier à partir d'une url\n",
    "* folium pour la création de la carte\n",
    "\n",
    "**Testez ce code et le comparer avec une carte des dorsales océaniques**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
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   "outputs": [],
   "source": [
    "'''\n",
    "Programme qui affiche sur une carte les lieux des séismes de magnitudes supérieure à 2.5\n",
    "en rouge si la magnitude est supérieure à 5\n",
    "en bleu entre 4 et 5\n",
    "en vert les autres\n",
    "'''\n",
    "#import des bibliothèques\n",
    "import csv\n",
    "import requests\n",
    "import folium\n",
    "\n",
    "#création de la carte\n",
    "carte_tremblements = folium.Map(location=[0,0], zoom_start=3)\n",
    "\n",
    "# Importation des données au format CSV\n",
    "url=\"http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/2.5_month.csv\"\n",
    "csvfile = requests.get(url)\n",
    "csvfile = csvfile.content.decode('utf-8')\n",
    "tremblements_csv = csv.reader(csvfile.splitlines(), delimiter=',')\n",
    "\n",
    "# pour éviter la ligne d'en têtes.\n",
    "header = next(tremblements_csv)\n",
    "\n",
    "# On lit maintenant chaque ligne  du fichier csv téléchargé\n",
    "for ligne in tremblements_csv :\n",
    "  latitude = float(ligne[1])\n",
    "  longitude = float(ligne[2])\n",
    "  magnitude = \"Magnitude : \"+ str(ligne[4])\n",
    "  if float(ligne[4]) > 5 :\n",
    "    folium.Marker([latitude,longitude],popup = magnitude,icon = folium.Icon(color='red')).add_to(carte_tremblements)\n",
    "  elif float(ligne[4]) > 4 :\n",
    "    folium.Marker([latitude,longitude],popup = magnitude,icon = folium.Icon(color='blue')).add_to(carte_tremblements)\n",
    "  else :\n",
    "    folium.Marker([latitude,longitude],popup = magnitude,icon = folium.Icon(color='green')).add_to(carte_tremblements)\n",
    "\n",
    "\n",
    "\n",
    "carte_tremblements.save('macarte6.html')\n",
    "display(carte_tremblements)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<hr>\n",
    "\n",
    "## À faire :\n",
    "\n",
    "**Expliquez comment et pourquoi les marqueurs sont de couleurs différentes**"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "--------------------------------------\n",
    "Réponse :\n",
    "\n",
    "--------------------------------------"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "\n",
    "\n",
    "## À faire :\n",
    "\n",
    "**Voici une carte des dorsales océaniques**\n",
    "\n",
    "\n",
    "<img src=\"https://wwz.ifremer.fr/var/storage/images/_aliases/content_embed_page/medias-ifremer/medias-grands_fonds/enjeux/relief/carte-dorsales.gif/766221-1-fre-FR/carte-dorsales.gif.gif\" alt='itineraire' width='600px' height='500px'>\n",
    "\n",
    "\n",
    "**Expliquez brièvement les similitudes entre les deux cartes**\n",
    "\n",
    "Voir <a href=\"https://wwz.ifremer.fr/grands_fonds/Les-enjeux/Les-decouvertes/Structure-des-fonds/Les-dorsales\">ici</a> pour plus d'informations\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "--------------------------------------\n",
    "Réponse :\n",
    "\n",
    "--------------------------------------"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## La population des villes dans le var...\n",
    "\n",
    "Le programme suivant affiche sur une carte Les villes du var et leurs nombre d'habitants (données obtenues à partir d'un fichier qui contient ces informations pour toutes les villes de France  en 2012)\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "\"\"\"\n",
    "\n",
    "population varoise\n",
    "affichage du nombre d'habitants ( chiffres 2012 )\n",
    "villes géolocalisées\n",
    "\"\"\"\n",
    "# import des bibliothèques\n",
    "import folium\n",
    "import csv\n",
    "import requests\n",
    "import webbrowser\n",
    "# importation au format csv\n",
    "url=\"https://sql.sh/ressources/sql-villes-france/villes_france.csv\"\n",
    "csvfile = requests.get(url)\n",
    "csvfile = csvfile.content.decode('utf-8')\n",
    "\n",
    "population_csv = csv.reader(csvfile.splitlines(), delimiter=',')\n",
    "\n",
    "\n",
    "# Création de la carte centrée sur Draguignan\n",
    "carte_population = folium.Map(location=[43.5374662,6.4627333], zoom_start=9)\n",
    "\n",
    "# lecture des données\n",
    "\n",
    "for ligne in population_csv :\n",
    "    if ligne[1]=='83':\n",
    "        longitude=float(ligne[19])\n",
    "        latitude=float(ligne[20])\n",
    "        population=int(ligne[15])\n",
    "        nom=str(ligne[3])\n",
    "        nom=nom+\" : \" +str(population) + \"hab\"\n",
    "        if population >=20000 :\n",
    "            folium.Marker([latitude,longitude], popup = nom, icon = folium.Icon(color='red')).add_to(carte_population)\n",
    "        elif population > 15000 :\n",
    "               folium.Marker([latitude,longitude], popup = nom, icon = folium.Icon(color='blue')).add_to(carte_population)\n",
    "        elif population > 5000 :\n",
    "            folium.Marker([latitude,longitude], popup = nom, icon = folium.Icon(color='green')).add_to(carte_population)\n",
    "        elif population > 1000 :\n",
    "            folium.Marker([latitude,longitude], popup = nom, icon = folium.Icon(color='orange')).add_to(carte_population)\n",
    "        elif population > 10:\n",
    "            folium.Marker([latitude,longitude], popup = nom, icon = folium.Icon(color='pink')).add_to(carte_population)\n",
    "\n",
    "\n",
    "#affichage\n",
    "carte_population.save(\"pop_var.html\")\n",
    "display(carte_population)\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<hr>\n",
    "\n",
    "## À faire :\n",
    "\n",
    "**Expliquez comment et pourquoi les marqueurs sont de couleurs différentes**"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "--------------------------------------\n",
    "Réponse :\n",
    "\n",
    "--------------------------------------"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<hr>\n",
    "\n",
    "## À faire :\n",
    "\n",
    "**Reprendre ce dernier programme pour un autre département**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "#Écrire le code ici"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<hr>\n",
    "\n",
    "## Pour les plus rapides...\n",
    "\n",
    "**Voici une autre visualisation possible :**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "\"\"\"\n",
    "\n",
    "population varoise\n",
    "\n",
    "\n",
    "\"\"\"\n",
    "import folium\n",
    "import csv\n",
    "import requests\n",
    "\n",
    "# importation au format csv\n",
    "url=\"https://sql.sh/ressources/sql-villes-france/villes_france.csv\"\n",
    "csvfile = requests.get(url)\n",
    "csvfile = csvfile.content.decode('utf-8')\n",
    "\n",
    "population_csv = csv.reader(csvfile.splitlines(), delimiter=',')\n",
    "\n",
    "\n",
    "# Création de la carte centrée sur Draguignan\n",
    "carte_population = folium.Map(location=[43.5374662,6.4627333], zoom_start=10)\n",
    "\n",
    "# lecture des données\n",
    "\n",
    "for ligne in population_csv :\n",
    "    if ligne[1]=='83':\n",
    "\n",
    "        longitude=float(ligne[19])\n",
    "        latitude=float(ligne[20])\n",
    "        population=int(ligne[15])\n",
    "        nom=str(ligne[3])\n",
    "        nom=nom+\" : \" +str(population) + \" hab\"\n",
    "        rayon=population/1000\n",
    "\n",
    "        if population >=20000 :\n",
    "            folium.CircleMarker([latitude,longitude], tooltip = nom, radius = rayon,  color='red', fill_color = 'red' , fill_opacity = 0.2 ).add_to(carte_population)\n",
    "        elif population > 10000 :\n",
    "            rayon=rayon*3\n",
    "            folium.CircleMarker([latitude,longitude], tooltip = nom, radius = rayon,  color='blue', fill_color = 'blue' , fill_opacity = 0.2 ).add_to(carte_population)\n",
    "        elif population > 5000 :\n",
    "            rayon=rayon*4\n",
    "            folium.CircleMarker([latitude,longitude], tooltip = nom, radius = rayon,  color='green', fill_color = 'green' , fill_opacity = 0.2 ).add_to(carte_population)\n",
    "        elif population > 1000 :\n",
    "            rayon=rayon*4\n",
    "            folium.CircleMarker([latitude,longitude], tooltip = nom, radius = rayon,  color='orange', fill_color = 'orange' , fill_opacity = 0.2 ).add_to(carte_population)\n",
    "        elif population > 100:\n",
    "            rayon=rayon*10\n",
    "            folium.CircleMarker([latitude,longitude], tooltip = nom, radius = rayon,  color='pink', fill_color = 'pink' , fill_opacity = 0.2 ).add_to(carte_population)\n",
    "\n",
    "\n",
    "#affichage\n",
    "carte_population.save(\"pop_var2.html\")\n",
    "display(carte_population)\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<hr>\n",
    "\n",
    "## À faire :\n",
    "\n",
    "**Reprendre ce dernier programme, le comprendre et l'adapter pour un autre département**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Écrire le code ici"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "\n",
    "<hr>\n",
    "<font color='red'> Enregistrez ce travail sous le nom : cartographie_tp_1_votre_nom.ipynb et déposez le là où on vous le dira </font>\n",
    "\n",
    "### Pour enregistrer:\n",
    "\n",
    "1. File\n",
    "2. Save notebook as\n",
    "3. Pour le récupérer cliquez sur le dossier à gauche en haut...\n",
    "4. cliquez droit sur le fichier et download\n",
    "\n",
    "### Autre méthode \n",
    "\n",
    "Dans **home**\n",
    "sélectionnez le fichier et download \n",
    "\n"
   ]
  }
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