2004

Table Of Contents
Overview of Hatch Patterns and Fills | 451
Choose a Hatch Pattern
AutoCAD supplies a solid fill and more than 50 industry-standard hatch
patterns that you can use to differentiate the components of objects or
represent object materials. AutoCAD supplies 14 hatch patterns that conform
to the ISO (International Standards Organization) standards. When you
select an ISO pattern, you can specify a pen width, which determines the
lineweight in the pattern.
The Pattern area of the Boundary Hatch and Fill dialog box, Hatch tab, dis-
plays the names of all the hatch patterns defined in the acad.pat text file.You
can add new hatch patterns to the dialog box by adding their definitions to
the acad.pat file.
Limit Hatch Pattern Density
If you create a very dense hatch, AutoCAD may reject the hatch and display
a message indicating that the hatch scale is too small or its dash length too
short. You can change the maximum number of hatch lines by setting the
MaxHatch system registry variable using (setenv MaxHatch n) where n is a
number between 100 and 10000000 (ten million).
Note When changing the value of MaxHatch, you must enter MaxHatch with
the capitalization as shown.
Edit Hatch Boundaries
Due to the many combinations of objects that can be hatched, editing
hatched geometry can produce unexpected results. If you create a hatch that
you don't want, you can undo it, or you can delete the hatch block and
rehatch the area.
hatched object result of editing
boundary with
associative hatch
result of editing
boundary with
nonassociative hatch