Fill Styles

Fill Styles are used whenever it is required to hatch an area on a drawing. The hatched area can either be part of the annotation (a hatched OUTLine element for example) or can be produced by the auto-hatching capability of the Update Design process.

A pre-defined set of fill styles (including solid-fill) is provided; it is also possible for you to define your own. A fill style is defined by combining 1 or more hatch patterns. A hatch pattern is a sequence of parallel lines all drawn with a particular line style (for example, chained or solidthick) and at a specified angle and separation. By the careful design of hatch patterns and line styles complicated fill styles (for example, those typically used to denote brickwork, concrete or grassland) can be created.

Using hatching in an element that is drawn with a decorated line style (for example, contains embedded glyphs or text) or one with terminal glyph(s) (DecMode non-zero) is usually unsatisfactory and should be avoided.