Intervisibility Applet

The applet below displays the monuments in the vicinity of Stonehenge. When you point at a monument its details are displayed in the browser status line and all other monuments visible from it are highlighted.

Clicking anywhere on the map brings up a control panel. There is a problem with the display of some of the controls on Linux platforms. Some of the option menu buttons do not appear, but clicking where they should be will bring up the menu.

It may take a while for all of the data and images to be downloaded. Features of the applet are enabled when the necessary data arrives, so everything may not work to begin with.

The following controls are available:

Background

Select the background for the display. The available options are:

• None: a plain white background.
• Contours: contours representing height above sea level.
• Visibility: colour-coding to represent how visible a point is. Yellow is the least visible, violet the most visible. This display also shows the contours and the extended monuments.

Update

Whether to highlight monuments as the mouse pointer moves across the display.

• Dynamic: highlight monuments visible from the monument nearest the mouse pointer.
• Static: do not highlight visible monuments.

Shading

Use colours to indicate properties of monuments. To examine this in detail it is best to set update mode to static and to turn off all monuments except the round barrows. A legend to the right of the map explains what the colours mean.

• None: no shading.
• Barrow type: type of barrow.
• Richness: a measure of the quantity of artefacts associated with the barrow.

Check boxes

There is a set of four check boxes which allow you to turn on or off the display of different types of monument.

Cancel

The cancel button dismisses the control panel.