GLG Map Display Demo

This demo demonstrates some of the GLG Toolkit's features often used in the monitoring applications:
 
  • Vector or image map display (see the GIS Demo for more map-related features)
  • Dynamic node and link creation and positioning based on lat/lon information
  • Layering and selective display of layering information
  • Dynamic shape of node icon based on the node state
  • Dynamic data display associated with nodes and edges
  • Tooltips and hot spots, showing node or link name on moving the mouse over them
  • Zooming and panning to selected region
  • Displaying maps for different regions
  • Node and link selection feeeback and drill down - pops up a dialog with more information for the selected node, link or state

    • This demo reads node information (node name and position) from a file or URL and creates nodes on the map dynamically, based on the information received. It also reads connectivity information and connects nodes with dynamic links. All objects in the drawing (nodes, links, display labels, map polygons, etc.) may be dynamically updated by changing any of the objects' attributes. They can also be selected with the mouse. The demo uses similated data. However, provided with a data source, it can also display live data.

    Refer to the User Interface instructions below to turn on data display and other demo options.

    Source Code

    User Interface

    The demo toolbar contains the following buttons (move the mouse over a button to show its tooltip):
     
  • Toggle Color Scheme

    •          Changes the color scheme used to display the drawing
  • Toggle Links Layer

    •          Toggles link layer visibility
  • Toggle Value Display Layer

    •          Toggles visibility of the data display layer
  • Toggle Map Layer

    •         Toggles map visibility
  • Toggle Update

    •         Starts or stops updating data
  • ZoomIn, ZoomOut, ZoomReset, Zoom and Pan sliders and scrollbars

    •         Zoom controls
  • ZoomTo

    •         Zooming to a rectangular area selected with the mouse (click on ZoomTo, then select a rectangular area on the map by clicking and dragging)

    Mouse selection

  • Select node to display node information
  • Select link to display link information
  • Select US state to display state name
  • Select anywhere to display lat./lon. position of the mouse click

    • Running the Demo as a stand-alone Java application

    To run the demo in stand-alone mode, use the supplied run_s (Unix) and run_s.bat (Windows) scripts that invoke the demo with the required parameters.