Territories

The central class of object for manipulating graphics is the Territory. A territory has the ability to display data, be moved and raised or lowered relative to other territories. The concept is very similar to that of windows in the X11 world, except that the programmer has more control over their movement. They provide the means by which functions reference the display, and allow input from the user. The coordinate frame used by territories is that of X-windows: X ordinates increasing left to right and Y ordinates increasing from top to bottom, both relative to the top left corner of the territory. There is no facility to rescale these at the server layer.