Suppose you are given an image of the earth\'s surface and that it is stored in the database as a polygon defined by the latitude/longitude pairs of its corners.
On large graphs like 2M node road network, dijkstra can not solve shortest path problem in suitable time. We need to shortest path query execution time under 1 second and I am implementing arc flag wa
I have the following: An image - a hand drawn map - of an area of roughly 600x400 meters. The image is drawn on top of Google Maps tiles.
I\'m developing an application where entities are located at positions on Earth.I want to have a set of data from which I can determine what region(s) a point is contained within.
I want to edit the corresponding text/numeric data type columns of a vector through openlayres, when a user click/mouse over a vector. l开发者_JS百科ike,
I have records in a table representing bus routes, with SQL Server spatial columns for the actual route geometry. (They\'re stored in a Geography column type.)
I wonder how the mapping thing works in the OpenStreetMap. I\'m building an app that uses my own database(which I will build using OS开发者_C百科M dumps using Osmosis; same as in the OpenStreetMap web
i am trying to use tinyows for wfs-t in my app along with openlayers and postgis. i am using osm tables and myown tables for storing geom.
As the title says... I trying to access that data associated with a vector layer but not having any success.
I\'m looking for good GIS solutions that work on a relatively smaller, detailed scale. Specifically, I was wondering what APIs or toolkits are available for mapping out spaces in a building (like room
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