Network link for providing dynamic data layer in a geographic information system
First Claim
1. A geographic information system comprising:
- a server for providing content and hosting a description file that specifies one or more attributes of the content, including geospatial location data of the content; and
a client-based module for executing a network link, the network link including a reference to a network location of the description file having one or more refresh conditions, the network link for referencing the description file to poll content and its geospatial location data from the server according to the one or more refresh conditions, and providing the polled content as a dynamic data layer showing the geospatial location data of that content.
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Accused Products
Abstract
A markup language is provided that facilitates communication between servers and clients of an interactive geographic information system (GIS, which enables a number of GIS features, such as network links (time-based and/or view-dependent dynamic data layers), ground overlays, screen overlays, placemarks, 3D models, and stylized GIS elements, such as geometry, icons, description balloons, polygons, and labels in the viewer by which the user sees the target area. Also, “virtual tours” of user-defined paths in the context of distributed geospatial visualization is enabled. Streaming and interactive visualization of filled polygon data are also enabled thereby allowing buildings and other such features to be provided in 3D. Also, techniques for enabling ambiguous search requests in a GIS are provided.
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Citations
38 Claims
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1. A geographic information system comprising:
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a server for providing content and hosting a description file that specifies one or more attributes of the content, including geospatial location data of the content; and a client-based module for executing a network link, the network link including a reference to a network location of the description file having one or more refresh conditions, the network link for referencing the description file to poll content and its geospatial location data from the server according to the one or more refresh conditions, and providing the polled content as a dynamic data layer showing the geospatial location data of that content. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A machine-readable storage medium encoded with instructions, that when executed by a processor, cause the processor to carry out a process for providing a data layer in a geographic information system the process comprising.
receiving content from a server that hosts a description file specifying one or more attributes of the content, including geospatial location data of the content; -
executing a network link, the network link including a reference to a network location of the description file having one or more refresh conditions, the network link for referencing the description file to poll content and its geospatial location data from the server according to the one or more refresh conditions; and providing the polled content as a dynamic data layer showing the geospatial location data of that content. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A machine-readable storage medium encoded with instructions, that when executed by a processor, cause the processor to carry out a process for providing a data layer in a geographic information system, the process comprising.
hosting a description file that specifies one or more attributes of content, including geospatial location data of the content; -
receiving a request from a client executing a network link, the network link including a reference to a network location of the description file having one or more refresh conditions, the network link for referencing the description file to poll content and its geospatial location data according to the one or more refresh conditions; and sending polled content to the client, thereby enabling the client to provide the polled content as a dynamic data layer showing the geospatial location data of that content. - View Dependent Claims (34, 35, 36, 37, 38)
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Specification