"The explosive growth of the GeoWeb and geographic information has made GIS powerful media for the general public to communicate, but perhaps more importantly, GIS have also become media for constructive dialogs and interactions about social issues." - Sui & Goodchild
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Objectif : comprendre les paramètres d'un service cartographique et savoir l'utiliser
WMS sait s'auto-décrire : WMS:GetCapabilities | service=WMS&version=1.1.0&request=GetCapabilities |
WMS sait produire des visualisations : WMS:GetMap | service=WMS&version=1.1.0&request=GetMap&layers=ne_10m_admin_0_countries&styles=&bbox=-180,-90,180,90&width=800&height=400&srs=EPSG:4326&format=image/png |
WMS sait interroger une visualisation : WMS:GetFeatureInfo | service=WMS&version=1.1.0&request=GetFeatureInfo&bbox=-22.5,28.75,22.5,51.25&srs=EPSG:4326&height=400&width=800&layers=ne_10m_admin_0_countries&format=image/png&styles=&query_layers=ne_10m_admin_0_countries&x=517&y=80&feature_count=50&info_format=application/json |