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G S c o m p o n e n t s -> clients
Web JAVA client
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During development of thin clients three main principles were observed – simple control, security of data and speed of access to data. Web JAVA client is created by standard Web browser in which user works on a common HTML page. User should be able to work with the client in an intuitive way without any training, client automatically navigates user. Client enables selection of objects from database, switching objects on the screen on and off, zooming in and out, shift, measurement of lines and areas, searching for texts, outlook prints (black and white and colored) in scale. Legend is creating automatically using right mouse button. With zooming zou can use so called „helicopter effect“ – automatic switch on and off of objects displaying depending on the scale.
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 basic functions:
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work in a browser with vector graphics presentation of vector, raster and descriptive data in mutual relationship selection of objects from database, switching on and off of the objects on the screen, zooming in and out, shift displaying of information about objects by reports or HTML forms automatic creation of key automatic switching on and off of the displayed objects based on the scale measurement of distance and area searching for texts printing of maps (black/white and colored) in user-defined scale displaying of overview map localization queries, possibility to localize any object with graphic representation
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advanced functions:
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insertion of own layer of objects directly from internet browser (redlining) possibility to update descriptive attributes including code-books with objects from Web browser displaying of information in user-defined HTML document, possibility to print user- defined forms displaying of user-defined styles of lines creation of buffer zones based on user criteria selections of objects based on fence, polygon, buffer zones
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analytic functions:
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dynamic change of symbology based on attributive information tracing of linear objects optimal journey between two points travelling salesman’s task
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product’s structure:
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Internet Explorer 5.01 and higher JAVA applet, to be used with MS JVM J# application, to be used with JBC v .NET
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architecture:
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Web HTML client
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Web HTML client comprises www browser, user works on a common HTML page. Client’s service is based on the same principle as most publicly accessed browsers of spatial data in internet environment. Web HTML client is very easy to control and user should be able to work with it without previous training. The client enables to switch on and off displayed layers, zoom in and out, selection of pre-defined scale, shift in map’s window and display of overview map.
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basic functions:
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presentation of vector, raster and descriptive data in mutual relationship presentation of data in pure HTML format or in raster formats JPG, PNG, GIF no installation on the web browser’s side localization of GIS objects according to user-defined criteria display of descriptive information from the whole contents of information system (defined by user) creation of selections according to user-defined criteria distance and area measurement
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product’s structure:
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architecture:
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PDA client
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functionality:
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presentation of vector, raster and descriptive data in mutual relationship on a mobile device localization of GIS objects according to user-defined criteria creation of selections according to user-defined criteria displaying of descriptive information from the whole contents of information system (defined by user) positioning using GPS cross-country navigation
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product’s structure:
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HW – PDA optionally with GPS receiver Windows CE 3.00 (Pocket PC 2003) or higher or Windows Mobile 2003 b. and higher GS HTML application server in MIIS 4.0 and higher GS GPS.cgi in MIIS 4.0 and higher application PocketGS.exe
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architecture:
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WMS client for MicroStation - data from Internet in MicroStation system
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WMS Client MicroStation is a software product enabling access to data provided by WMS servers on Internet according to the standard Open Geospatial Consortia - Web Map Service (ISO 19128).
The application implements WMS services into the environment of graphic editor MicroStation. The user defines WMS sources, data layers and their visual display. Data is transferred using standard http protocol and is attached as reference raster files.
WMS client enables effective work with large data sources located on Internet or private intranet. It effectively solves integration of data from various sources.
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basic characteristics:
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direct access to Internet from MicroStation environment uploading data layers from WMS sources and their automatic attachment by means of reference raster drawings Visual display of seamless map created from all source data Support of data upload upon a request Support of dynamic data upload with the change of scale of display Setting of the quality of resolution (dpi) of uploaded data Simple installation Easy intuitive control Integration with applications and information systems of third parties (GIS, geodetic super-structures e.t.c.)
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system requirements:
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architecture:
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WebServices Client for Microstation
editing GIS data on Internet/intranet
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WebServices Client for MicroStation enables access to geographic data located on remote Internet/intranet servers in order to edit it (to update or to maintain).
The client access data in data storage via application server. The communication between the client and the application server is based on standard HTML/HTTP. Data is transferred to the client in compressed and encrypted form. Software enables to the client to receive the data from data storage and to display it on the screen or to save it in standard DGN file. The client then can work with the data using standard functions and extensions of graphic editor MicroStation.
When data editing is finished, it can be sent back to GIS data storage on remote server and so to update its contents.
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basic characteristics:
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access to data using standard HTML/HTTP communication visual display of received data export of received data to DGN format operations with a seamless map not too demanding on communication speed between MicroStation and the application server data is compressed to 1/10 of its original volume during its transfer security of data – during transfer it is asymmetrically encrypted according to RSA Cryptography Specifications possibility to send edited data back to the data storage
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possible users:
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utility managers – creation and update of their own data storage by external GIS suppliers utility managers – direct usage of external data sources in their own GIS land Surveying companies - creation and update of their own data storage from remote branch offices cities and municipalities – creation and update of passports from remote workplaces
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system requirements:
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Basic principles
System architeture 
