Using ArcCatalog

ArcInfo and ArcEditor
Setting a
coverage’s
tolerances
Many coverage operations use
tolerances. For example, when
you digitize or edit with node
snapping turned on, two nodes
are automatically snapped
together if they fall within a
given distance of each other; that
distance is the Node Snap
tolerance. Tolerances are
distances in the coverage’s units.
If the feature coordinates are in
digitizer units, the tolerances are
likely in inches; if the features
are projected, the tolerances are
likely in feet or meters.
The Tolerances tab lists the
current values for all of a
coverage’s tolerances. You’ll
see Default next to values that
have been suggested by
ArcInfo. You may want to
change the default tolerances to
values that are more appropriate
for the type and scale of
features in the coverage; when
you do so in the Tolerances tab,
Default disappears. You can
also set tolerances when using
an ArcToolbox tool or an
ArcInfo Workstation command.
When you open the Coverage
Properties dialog box after
running the tool or command,
Verified appears next to the
tolerance that was used.
1. Click the coverage whose
tolerances you want to set.
2. Click the File menu and click
Properties.
3. Click the Tolerances tab.
4. Click in the text box of the
tolerance whose value you
want to modify and type the
new value.
5. Repeat step 4 until all the
tolerance values are correct.
6. Click OK.
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WORKING WITH COVERAGES 203