Dimension style is a set of properties that determine the appearance of dimensions. These properties are stored in files with the extension .dim and are loaded at QAD startup. Dimension files must be saved in the folders specified by SUPPORTPATH variable or in the QAD installation folder (i.e. in windows xp "C:\Documents and Settings\current user\.qgis2\python\plugins\qad ").
QAD stores the elements constituting a dimension in 3 different layers::
· Text layer for storing dimension text
· Symbol layers to store punctual dimension objects (dimension points, arrow symbols ...)
· Linear layers to store linear dimension objects (dimension line, extension lines ...)