ISO 10303-214:2010(E)
A Text_appearance is the definition of the visual presentation of text. Text_appearance may be predefined or user defined. The ISO 3098-0 family of standards shall be used for Predefined text fonts. User defined text fonts are defined by thickness, colour, text rotation angle, character aspect ratio, character rotation angle, character scale, and character slant angle as shown in figure 72.
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