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- 5.11.6 DRAW ARROW
-
-
- The DRAW ARROW command is used to create arrowheads with or without
- extension lines suitable for labels or pointers. The arrowhead itself is
- made up of a combination of polygon, line or string entities.
-
-
- COMMAND FORMAT
-
- #DRAW ARROW [modifiers] :Loc x1 x2 [:Loc ... ]
-
- When used without the EXTENSION or ON modifiers, the two locations are used
- to define the position and direction of the arrowhead. Location 'x1' defines
- the position, while the angle between locations 'x1' and 'x2' define the
- direction or angle of the arrowhead.
-
-
- MODIFIERS
-
- ARROWHEAD The ARROWHEAD modifier is used to select the type of
- arrowhead to be used. The modifier is followed by one of 3
- keywords to select the arrowhead type:
-
- CLOSED Use a closed unfilled arrowhead.
- FILLED Use a closed filled arrowhead.
- OPEN Use an open arrowhead ( < shape ).
-
- .LENGTH Requires a real value to specify the length of the arrowhead.
-
- ..RATIO Specifies the ratio between the arrowhead length and width.
- If the arrowhead length was entered as 5mm, a ratio of 2.5
- will make the arrowhead width 2mm.
-
- The above three modifiers can all be preset by using the SELECT DIMENSION
- command.
-
- EXTENSION This modifier is used to specify that an extension line or
- string is required to join the locations entered for the
- command. Using this modifier, more then 2 locations can be
- entered. The first 2 locations define the position and
- direction of the arrowhead as before. Each successive
- location defines the endpoint for a string created as an
- extension line to the arrowhead.
-
- .UNLINK When the above modifier is used, the entities created are
- related as equal members. The UNLINK modifier can be used to
- suppress the relationship.
-
- ON The ON modifier specifies that arrowheads will be created at
- the vertex of an existing line or string entity. The syntax
- for the command differs if this modifier is used:
-
- #DRAW ARROW ON [modifiers] :Ent x1 x2 ... xn
-
- An arrowhead will be placed on each line or string entitiy
- selected. The position of the arrowhead will be the vertex
- of the selected entity nearest to the identifying location.
- The direction of the arrowhead will be aligned to the segment
- of the line or string nearest to the identifying location.
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-