Controlling The Display Behavior Of Dimension Arrows - Autodesk 256B1-05A761-1301 - AutoCAD Revit Structure Suite 2010 User Manual

If you select an arrow tick mark, see
information on the behavior of arrow type tick marks.

Controlling the Display Behavior of Dimension Arrows

When you select an arrow tick mark for dimension lines, the arrows recognize when a dimension segment
is too small to accommodate the arrows on the interior of the dimension line. When this occurs, dimension
arrows automatically flip to the exterior of the dimension line. This occurs for linear, angular, and radial
dimensions. For radial dimensions, arrows flip when the dimension line (the radius) is shorter than the
length of the arrow.
The following image shows 2 dimensions with arrow tick marks. The larger dimension shows how arrows
display on the interior of the dimension line when the line is large enough to accommodate them. The
smaller dimension shows how dimension arrows flip to the exterior of the dimension line when the line is
too small to accommodate them.
In addition, multi-segment dimension lines recognize when adjacent segments are too small for arrows to
fit. When this occurs, the ends of the short-segment string flip, and the inner witness lines display the
interior tick mark type designated in the dimension properties. In the following image, the dimension arrows
flip to the exterior of the dimension line and the witness lines display the designated tick mark (diagonal).
For information on changing the tick mark for a dimension line, see
Mark on page 287.
To control the display behavior of dimension arrow tick marks:
1 In the drawing area, select a dimension and right-click Element Properties.
2 In the Instance Properties dialog, click Edit Type.
3 Edit the following parameters:
288 | Chapter 6 Using Dimensions and Constraints
Controlling the Display Behavior of Dimension Arrows
Flipped Dimension Line Extension: when dimension arrows flip, this controls the length of
the dimension line beyond the flipped arrows. Length is measured from the end of the arrow
head.
on page 288 for
Changing the Dimension Line Tick