2011

Table Of Contents

System Variables

DIMCLRD

Assigns colors to dimension lines, arrowheads, and dimension leader lines.

DIMDLE

Sets the distance the dimension line extends beyond the extension line when

oblique strokes are drawn instead of arrowheads.

DIMSD1

Controls suppression of the first dimension line and arrowhead.

DIMSD2

Controls suppression of the second dimension line and arrowhead.

Customize Arrowheads

You can create your own custom arrowheads.

Arrowheads are stored as block definitions. To use your own arrowhead,

provide the name of an existing block definition. For information about

creating blocks, see Create Blocks Within a Drawing on page 413.

NOTE Annotative blocks cannot be used as custom arrowheads for dimensions

or leaders.

Arrowhead sizing relies on the overall dimension scale factor. When you create

a dimension, the block is inserted where the arrowheads would normally go.

The object's X and Y scale factors are set to arrowhead size overall scale. The

dimension line is trimmed by text gap x overall scale units at each end. To trim

the dimension line, the rightmost block is inserted with a zero rotation angle

for horizontal dimensioning. The leftmost block is rotated 180 degrees about

its insertion point.

NOTE The insertion point a block is defined with affects its placement as a custom

arrowhead on a dimension or leader. For information on changing the insertion

point of a block, see

Create Drawing Files for Use as Blocks on page 414.

If you use paper-space scaling, the scale factor is computed before applying it

to the arrowhead size value.