Range Ring

Click the Home | Insert | Range Ring or Features | Insert | Range Ring command to draw a range ring or set of rings around a point. By default a symbol is displayed at the center of the range rings. A range ring with multiple rings is drawn as concentric circles with the largest ring on the bottom and the smallest ring on the top. Therefore range ring fill opacities are additive. Multiple rings can be used with a semi-transparent fill to create a bulls-eye effect.

 

To draw a range ring:

  1. Click the Home | Insert | Range Ring or Features | Insert | Range Ring command.

  2. The cursor changes to a cross hair cursor to indicate drawing mode.

  3. Click on a location in the plot window to create a point and range ring. The center of the range ring is drawn at the clicked location.

  4. Press the ESC key or click another tool button to end drawing mode.

 

Drawing Tips

 

Range Ring Properties

Range ring properties are edited in the Properties window. Click on the range ring in the Contents window or plot window to select it. The properties automatically appear in the Properties window.

 

General Page

The General page contains general options for the range ring display, such as number, size, and shape.

 

Fill Page

The Fill page contains options for the range ring fill properties. All rings use the same fill properties when Number of rings on the General page is greater than 1. If you wish to use different fill properties for the rings, consider creating a buffer around a point.

 

Range ring fill opacities are additive. Multiple rings can be used with a semi-transparent fill to create a bulls-eye effect. For example, consider a range ring with three rings and a fill opacity of 20%. The largest ring will have an effective opacity of 20%. The middle ring is stacked on the large ring, and therefore has an effective opacity of 36%, i.e. 1 - 0.802. The smallest ring is stacked on both larger rings and has an effective opacity of 48.8%, i.e. 1 - 0.803.

 

Line Page

The Line page contains options for the range ring line properties. All rings use the same line properties when Number of rings on the General page is greater than 1. If you wish to use different line properties for the rings, consider creating a buffer around a point.

 

Symbol Page

The Symbol page contains options for the range ring center symbol properties. The Show center property on the General page must be checked to display a symbol in the center of the range ring.

 

Info Page

The Info page displays general information about the range ring and its attributes.

 

 

See Also

Text

Polyline

Polygon

Point

Spline Polyline

Rectangle

Rounded Rectangle

Ellipse