GeodesiX. GeodesiX is an addin for Microsoft Excel which allows you to display maps, perform forward and reverse geocoding, compute distances (Great Circle, driving, bicycling and walking) and verify your results in Google Maps, all within Excel. Features Multi-place display dynamically creates maps with any number of items, each with its own custom icon and popup menuShow on Map context menu displays the place or route with GoogleMaps in an Excel Task PaneOffice-finder shows the nearest items to a location on the map.
Relative distances are highlighted by line thicknessHeatmap uses KML files to colour areas according to cell values. KML for all the world’s countries are builtin.Travelling Salesman Solver computes the shortest route to visit a set of places. The Gaia-SINS federated project home-page. API Google Maps JavaScript V3 - Référence - Guide du développeur. Google Maps JavaScript API V3. Annuaire de la Géomatique et des SIG > Divers. Downloads. Our download server Our download server at has excerpts and derived data from the OpenStreetMap dataset available for free download. Most of these files are updated every day – any change you upload to OpenStreetMap should be on our download server the next day.
Geographic Regions Data on the download server is organised by region. The /openstreetmap directory contains files that have a whole continent's data in them, and for some continents there are subdirectories in which you find individual files for various countries. Some countries again have their own subdirectories with data for administrative subdivisions. Please let us know if you are interested in other regional excerpts that we do not offer right now – we might be able to add them with little effort. Raw data (OSM source data) Files ending in ".osm.bz2" are bzip2 comressed OpenStreetMap raw data files. Shape Files License. OS GIS. GeoNames. Free Spatial Data | DIVA-GIS. Country level Download country level data for any country in the world: administrative boundaries, roads, railroads, altitude, land cover, population density.
Global level A new file with the (2011) global country boundaries Global climate data See WorldClim or diva-gis specific data here Species occurrence data GBIF, HerpNET, MaNIS, OBIS, ORNIS, REMIB Crop (genebank) collection data Near global 90 meter resolution elevation data Download High resolution satellite images (LandSat) for nearly all of the world can be downloaded here. A very good list of data sources from the Eden project. Rechercher une adresse et ses coordonnées Gps par Google Maps. Calculer les coordonnées Gps et géographiques d'une ville, d'une adresse (géocoder) (Taper une adresse ou simplement une localité, et valider sur le bouton géocoder, ensuite déplacer le curseur) Retour page d'accueil site du Biclou.com Map data ©2014 Google Terms of Use Report a map error Map Satellite Retour page appelante.
Downloads. Objet le plus proche - SpatiaLite. Données de départ:- table1 (id,nom,geometry)- table2 (id,nom,geometry) + Index Spatial R*Tree Objectif: Pour chaque objet de la table1 , determiner la distance de l'objet le plus proche dans la table2 (dans la limite de 1Km, soit 1000m) Contrainte: De manière intuitive, la solution serait toute simple: SELECTtable1.nom as nom1,table2.nom as nom2,min(st_distance(table1.geometry,table2.geometry)) as distanceFROM table 1JOIN table2 ON ( ....dist...)GROUP BY 1 A priori, cette requete retourne effectivement pour chaque objet de la table1, la distance la plus courte le séparant des objets de la table2.
Mais en regardant de plus près, pour chaque ligne l'objet de la table2 retourné par la requète correspond non pas à l'objet le plus proche, mais au premier objet trouvé... ceci est dû au fonctionnement même de GROUP BY. Afin de determiner les couples d'objets les plus proches, il faut ruser en passant par plusieurs étapes. Solution: en plusieurs étapes.