cartographie_TP_5.ipynb

{"nbformat":4,"nbformat_minor":0,"metadata":{"colab":{"name":"cartographie_TP_5.ipynb","version":"0.3.2","provenance":[],"collapsed_sections":[]},"language_info":{"codemirror_mode":{"name":"ipython","version":3},"file_extension":".py","mimetype":"text/x-python","name":"python","nbconvert_exporter":"python","pygments_lexer":"ipython3","version":"3.7.2"},"kernelspec":{"display_name":"Python 3","language":"python","name":"python3"}},"cells":[{"cell_type":"markdown","metadata":{"id":"ZnCjuvd6Glwg","colab_type":"text"},"source":["# Cartographie TP 5"]},{"cell_type":"markdown","metadata":{"id":"rpfPEfeSGlwn","colab_type":"text"},"source":["<font color='red'> Écrire votre nom </font>"]},{"cell_type":"markdown","metadata":{"id":"uSHtTbTvGlwp","colab_type":"text"},"source":["*ici*"]},{"cell_type":"markdown","metadata":{"id":"I9GjnBXKGlws","colab_type":"text"},"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","metadata":{"id":"ebkVR0jgHcjK","colab_type":"code","colab":{}},"source":["#pip install folium"],"execution_count":0,"outputs":[]},{"cell_type":"code","metadata":{"id":"-QI3-MfmGlwy","colab_type":"code","colab":{}},"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)"],"execution_count":0,"outputs":[]},{"cell_type":"markdown","metadata":{"id":"J_lwCdiEGlw6","colab_type":"text"},"source":["<hr>\n","\n","## À faire :\n","\n","**Expliquez comment et pourquoi les marqueurs sont de couleurs différentes**"]},{"cell_type":"markdown","metadata":{"id":"tXQkRiizGlw8","colab_type":"text"},"source":["--------------------------------------\n","Réponse :\n","\n","--------------------------------------"]},{"cell_type":"markdown","metadata":{"id":"JrBCGWbEGlw_","colab_type":"text"},"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":{"id":"waZ24al2GlxD","colab_type":"text"},"source":["--------------------------------------\n","Réponse :\n","\n","--------------------------------------"]},{"cell_type":"markdown","metadata":{"id":"lYERniBpGlxF","colab_type":"text"},"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","metadata":{"id":"NOO-x_XHGlxL","colab_type":"code","colab":{}},"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"],"execution_count":0,"outputs":[]},{"cell_type":"markdown","metadata":{"id":"KcEY0zuZGlxS","colab_type":"text"},"source":["<hr>\n","\n","## À faire :\n","\n","**Expliquez comment et pourquoi les marqueurs sont de couleurs différentes**"]},{"cell_type":"markdown","metadata":{"id":"VLQf47O-GlxT","colab_type":"text"},"source":["--------------------------------------\n","Réponse :\n","\n","--------------------------------------"]},{"cell_type":"markdown","metadata":{"id":"GiuiVaI0GlxV","colab_type":"text"},"source":["<hr>\n","\n","## À faire :\n","\n","**Reprendre ce dernier programme pour un autre département**"]},{"cell_type":"code","metadata":{"id":"zWmeDWJSGlxW","colab_type":"code","colab":{}},"source":["#Écrire le code ici"],"execution_count":0,"outputs":[]},{"cell_type":"markdown","metadata":{"id":"tzOc5t4vGlxc","colab_type":"text"},"source":["<hr>\n","\n","## Pour les plus rapides...\n","\n","**Voici une autre visualisation possible :**"]},{"cell_type":"code","metadata":{"id":"A9sYH2k9Glxi","colab_type":"code","colab":{}},"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"],"execution_count":0,"outputs":[]},{"cell_type":"markdown","metadata":{"id":"ermL__IsGlxr","colab_type":"text"},"source":["<hr>\n","\n","## À faire :\n","\n","**Reprendre ce dernier programme, le comprendre et l'adapter pour un autre département**"]},{"cell_type":"code","metadata":{"id":"i7BNufwLGlxt","colab_type":"code","colab":{}},"source":["# Écrire le code ici"],"execution_count":0,"outputs":[]},{"cell_type":"markdown","metadata":{"id":"Bu37uQwoGlx1","colab_type":"text"},"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"]}]}