Download presentation
Presentation is loading. Please wait.
Published byJocelyn Holland Modified over 9 years ago
1
Enterra Web GIS Embedded Flash System
2
Application Features 1. Dynamic data loading and caching Minimum data transfer on startup Additional data transfer on user request Data caching
3
Application Features 2. Versatility Any data in fixed format can be used. Program logic is independent from data set Java GIS Server has flexible configurations for data representation
4
Main System Parts Client side (Flash, Action Script 2.0 ) Server side (Java servlet) Web-site (PHP) Data files (shp format) or a database
5
System Flow Web-site Server side (Java) Client side (Flash) Data (shp-files or database) result processing script (PHP) http-request data loading List of objects selected ( http-запрос ) XML document
6
Data Structure Information Objects –define a region (state, county, town); –hierarchical structure –number of different layers
7
Data Structure Layers –Layers contain partial information about specific objects; – Each layer may have a legend.
8
Data Structure Layer Elements –contain spatial data (border coordinates, town locations etc.)
9
Features Data loading from the server; Data visualization; Navigation through system objects;
10
Features Statistics Representation: -Demography -Density of Population -Custom Information Layered Legend Representation ; Layer Visibility Control: User can set each layer visible or invisible
11
Features Single object selection; Multiple object selection; Transfer information about selected objects to the web-site
12
Features Scale and Scroll: The user can scale an area and scroll it by the mouse dragging with “Shift” key;
13
Features Data sorting: - by town names - by zip codes
14
Features Synchronization with the web site page through JavaScript Synchronization with the web site page through JavaScript
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.