Measurements

The Measurements toolbar provides a set of tools for measuring lines, polygons, and circles on the map. When using these tools, users can control the units of measurement.

	Line	Draws a line with multiple segments. Provides a measurement for each segment as well as a total for the entire line.
	Polygon	Draws a closed polygon defined by arrays of coordinates. Provides measurements for each line that makes up the polygon as well as the area of the whole polygon.
	Circle	Draws a circle and provides a measurement for the radius of the circle.
	Unit of measurement for lines	Controls the unit of measurement used when drawing lines, including those thatt mak up a polygon and the radius of the circle.
	Unit of measurement for areas	Controls the unit of measurement used to determine the area of a polygon.
	Close	Closes the toolbar.

How To Use the Measurement Tool

Click the on the toolbar. The Measurement toolbar appears:
Set the desired Unit of Measurement for the line or area features using the drop-down menus.
Select a Measurement tool:
Line
1. Click . The cursor changes to the Line tool.
2. Click on the map to start the measurement.
3. Click on another location in the map to end the line segment and begin a new one. Continue until all segments are marked.
  
  The system will display the length of each section of the line. The total length of the line is displayed at the end of the line, near the cursor.
4. Double-click to end the line. (The measurement line disappears.)
Polygon
1. Click . The cursor changes to the Polygon tool.
2. Click on the map to start drawing the polygon.
3. Click on another location in the map to finish a side of the polygon and begin a new side.
4. Close the polygon by clicking on the starting point.
  
  The system displays the length of each side of the polygon. The area of the polygon (shaded part) is displayed near the cursor.
5. Double-click to end the polygon. (The measurement polygon disappears.)
Circle
1. Click . The cursor changes to the circle tool.
2. Click on the map to start creating the circle.
3. Move the cursor away from the original point. The tool will display a red line and an expanding circle. The red line is the radius of the circle.
  
  The length of the radius is displayed at the end of the line, near the cursor.
4. Click to end the circle. (The measurement circle disappears.)