A library of standard linetypes is provided in the acad.lin and acadiso.lin files. You can use the linetypes as they are, modify them, or create your own custom linetypes.
Topics in this section
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Overview of Linetype Definitions
Linetypes are defined in one or more linetype definition files that have a .lin file extension.
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Simple Custom Linetypes
Each linetype is defined on two lines in a linetype definition file. The first line contains the linetype name and an optional description. The second line is the code that defines the actual linetype pattern.
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Text in Custom Linetypes
Characters from text fonts can be included in linetypes.
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Shapes in Custom Linetypes
A complex linetype can contain embedded shapes that are saved in shape files. Complex linetypes can denote utilities, boundaries, contours, and so on.