Mobile Queries in GIS
نویسندگان
چکیده
In this paper we propose an algorithm for exhaustive search of GIS Mobile query (pointin-area function). This algorithm search the status of a given co-ordinate point with respect to an area (described as a set of co-ordinates without any geometric relationship). In the exhaustive search algorithm proposed previously, there were a number of undetermined points (which does not support the range of scale), which are close to boundary co-ordinates. In this paper a new approach is introduced by which much accurate result can be obtained.
منابع مشابه
Geo-Mobile Queries: Sketch-Based Queries in Mobile GIS-Environments
Traditional GIS tools are well suited for desktop workstations, but need to be adapted in order to satisfy the requirements of mobility. We propose a concept for sketch-based spatial querying in mobile GIS environments. This concept combines newest techniques for spatial querying and mobile technologies. Such a combination is beneficial because it allows formulating queries by drawing the desir...
متن کاملTowards a New Visual Query Language for GIS
In recent years, many non-expert user applications have been developed to query Geographic Information Systems (GIS) that are used to browse and view data about space and time thus naming them spatio-temporal databases. Our research aims at designing and developing an International Visual Query Language (IVQL) that allows users to query databases based on their location. The databases are insta...
متن کاملGoal Directed Relative Skyline Queries in Time Dependent Road Networks
The Wireless GIS technology is progressing rapidly in the area of mobile communications. Location-based spatial queries are becoming an integral part of many new mobile applications. The Skyline queries are latest apps under Location-based services. In this paper we introduce Goal Directed Relative Skyline queries on Time dependent (GD-RST) road networks. The algorithm uses travel time as a met...
متن کاملNAMGIS – A Context-Aware Mobile Web GIS
We present NAMGIS (Nomadic Adaptive Mobile GIS), an open-source locationand contextaware mobile Web GIS especially targeted at small screen and CPU limited handheld devices. NAMGIS is composed of NAMGIS Core and SAF. NAMGIS Core is the mobile GIS, which builds on top of MapServer and provides an internationalized, context-adaptable Web interface supporting principal GIS functionalities, such as...
متن کاملMobile Visibility Querying for LBS
This article describes research carried out in the area of mobile spatial interaction (MSI) and the development of a 3D mobile version of a 2D web-based directional query processor. The TellMe application integrates location (from GPS, GSM, WiFi) and orientation (from magnetometer/accelerometer) sensor technologies into an enhanced spatial query processing module capable of exploiting a mobile ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2009