Microsoft Virtual Earth
Microsoft Virtual Earth is a programming service; it is used as aerial photography as well as geographic mapping site which have been launched by Microsoft. Unlike the program Google Earth that needs a locally installed component; the program Virtual Earth can run completely off the web browser without any software installation required. The API is the most important part of this program that provide developers mapping features for creating a custom mapping application utilizing a combination of map features as well as internal and public data.
Midpoint’s features and Virtual Earth’s features are comparable. Unlike MapPoint, the program Virtual Earth is free. It is free to utilize and not an important drain on enterprise servers. Virtual Earth includes highly functional API that is very easy to use by writer’s map-based applications. Now you are able to start learning about Virtual Earth map control that is available in Virtual Earth version 6.0. It unites traditional online maps with satellite as well as serial photos to give you an experience, which takes you flawlessly from maps to photos when you zoom in on a particular location. If we make a comparison between Virtual Earth and Google Earth, Virtual earth provides more high-resolution photos than Google Earth.
Virtual Earth API provides you a variety of methods to manipulate the map, integrate size, location and some other characteristics. Now you can use this program with OpenLayers. OpenLayers is an open source that always receives the layer map data from many different sources such as Yahoo, World Wind, Tile Cache, GML, WFS and TMS. Virtual Earth program has the capability of displaying several formats on a base map. OpenLayer adds many options for instance; overlay is a shapefile, which is supplied as a series of WMS files by Map Server. Virtual Earth supplies aerial based map.
OpenLayers also lets any user to use various base maps. By making use of OpenLayers, we are able to re-arrange different layers easily to meet specific needs. OpenLayers can handle the map-keeping operations like enable/display layers, zoom pan and pop-up windows. Before we get started to utilize various data sources, we found that OpenLayers AJAX abilities completely enhanced a Map Servers, map application’s user experience. Map Server is a great open source environment to build Internet application that is spatially enabled. It was developed by the Minnesota University. But presently it is managed by the Open Source Geospatial Foundation.
OpenLayers displays tiles as well as markers. It is supported by several organizations across the world. It is pure JavaScript library to display map data in most of the modern web browsers. It implements industry-standard methods to access geographic data like Web Feature Service Protocols and Web Mapping Service. OpenLayers is written in JavaScript using elements from Rico library and Prototype.js. It is especially intended to break up map tools from map data to operate on all data sources. You can use Map Server as a WMS server. By using tutorial that is available on Map Server site you can get installation instructions.
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