Overview of the Web Application - Click to enlarge
Draw and Measure Tool
1. Draw and Measure Tool
This tool enables the user to create lines, polygons and text on the map. The line features can also be used to measure distances in meters, kilometers, feet and miles. All features created using this tool can be saved as text files named “SavedGraphics” and reloaded at a later time or sent to a collaborator viewing the same web application.
Identify Tool
2. Identify Tool
This tool enables a user to identify point values of layers present in the “Layer List”. For grids, the tool displays values of the selected pixel (see figure on the right); however, for vector layers, the tool identifies the attributes of the selected record within a shapefile.
Layer List
3. Layer List
This displays the list of available layers in the web application. Usually there is one feature per layer, however, in some cases there are multiple features per layer, for example in the case of temporally differentiated flight lines or accretion picks (see figure on the right). These layers are identified with the suffix “(List)”.
Each layer can be manipulated further by clicking on the white arrow on the right, a dropdown menu provides options for:
- Zooming to the layer
- Adjusting the layer transparency
- Moving the layer up or down
- Viewing the map service details
Legend
4. Legend
Explains the values of active layers corresponding to the color range, and the symbology contained with them.
Bookmark Tool
5. Bookmark Tool
Enables users to create spatial bookmarks for areas of interest. By clicking on a saved bookmark, a user is transported to the location of interest at the extent at which was initially created.
Navigation Tool
6. Navigation Tool
Allows users to navigate the map by:
- Using the left, right, top and bottom arrows to pan the pan and use the central globe to zoom out to the maximum extent.
- Using the extent buttons to go backward or forwards in the zoom history.
- Zooming in or zoom out at a fixed point.
- Freely panning the map using the hand function.
- Zooming into or zooming out from a specific area in the map.
