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  Great Lakes Hydrometeorological Station Directory
Mapping Tools Overview

 
Return to HydroMet Directory Main Page
Open Data Summary
Open Mapping Interface
Open Data Summary


 
Mapping Tools

Toolbar OverviewTwelve tools are built into the Toolbar in the upper right corner of the Mapping Interface. A brief description of each follows.


 
Zoom In
Click once anywhere on the map to cause the map to recenter and zoom in on the spot you selected, or click and drag the mouse to define a box and the map will zoom in the extent you described.
 
Zoom Out
Click once anywhere on the map to cause the map to recenter on the spot you selected and zoom out, showing a larger portion of the Great Lakes region.
 
Pan
Click and drag the mouse to move the map area visible in your browser window without changing the current map scale.
 
Identify
Click once on a data point to retrieve information about data stations located there, or click and drag to retrieve information about multiple stations in a larger area.
 
Select (by Rectangle)
Click once on a data point to select it for processing, or click and drag to select multiple station points over a larger area.
 
Overview Map
Click to turn the overview map on or off.
 
Zoom to Extent
Click to zoom to the full extent of the mapped area for this project.
 
Zoom to Active Layer Extent
Click to zoom to the extent of the theme highlighted as "active" in the legend.
 
Zoom to Previous Extent
Click to zoom to the previous extent shown in the main map window.
 
Query
Click to start the Query Tool. This tool will allow you to locate stations based on characteristics recorded in the station directory. The tool uses SQL ("Structured Query Language") database queries.
 
Clear Selected Points/Data
Click to clear the selected points from memory and start selecting new points or composing a new query.
 
Print
Click to print the map or data windows to a printer connected to your computer.

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Great Lakes Information Network
Updated: November 22, 2017
Maintained by: Stuart Eddy, seddy@glc.org
Selected Photos: Copyright ©John and Ann Mahan
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