What is a Brush?

Brush objects are used to fill areas on screen. For eg Polygon and TopoPolygon items use a Brush to determine their fill colours and patterns.

Area items are outlined with a Pen and filled with a Brush.

A Brush:

  • has a colour
  • is opaque or transparent
  • can have user-defined hatch patterns
  • can contain symbols or bitmaps that draw repeatedly inside the filled area

Brush (and Pen) definitions are stored in Named Object Libraries. Apart from the pre-installed Pens and Brushes, SIS Desktop 9.1 allows you to create your own.

See Creating, Choosing and Editing Brushes.

A Brush may be specifically assigned to individual items or to an overlay; this means all items on that overlay use the same Brush by default.