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Automatically Draw Arrowheads on Circles and Arcs
Tip# 3397 By William Townsend On 15-Apr-2010
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 Rated By 1 users Downloaded : 965
Categories : Curved Objects, Leaders
Software type : AutoCAD 2011
Rename File To : auto_rotation.lsp
Draw directional indicators based on the radius of an existing arc or circle.

Frequent tip contributor William Townsend presents an update to tip #2123, originally published by Cadalyst in June 2006. This routine draws single- or dual-headed directional indicators based on the radius of an existing arc or circle. Arrowheads are automatically sized based on the radius of the selected entity. Load the LISP file, then start the command by entering RT1 at the Command line. Select any circle or arc and answer the self-explanatory prompts. William's code includes thorough comments and illustrates the use of subroutines. Thanks, William.
 

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