An overview of the Editing toolbox
(ArcGIS, ArcToolbox) Tools
· The Editing
tools allow you to apply bulk editing to all (or selected) features in a
feature class.
· Sometimes data
is captured or digitized with an inadequate precision or lack of a snapping
environment. This results in polygon boundaries that are not closed (have gaps)
or lines that undershoot or overshoot their intended intersection with other
lines. You can use some of these tools to address this sort of data quality
issue. Other editing tools help address vertex density, conflation, and other
data issues.
· Tools of the Editing toolbox:
1. Densify
Adds vertices along line or polygon features. Also replaces curve
segments (Bezier, circular arcs, and elliptical arcs) with line segments.
2. Erase
Point
Deletes points from the input that are either inside or outside the
Remove Features, depending on the Operation Type.
3. Extend
Line
This tool extends line segments to the first intersecting feature within
a specified distance. If no intersecting feature is within the specified
distance, the line segment will not be extended. Tool use is intended for quality control tasks such as cleaning up topology errors in features that were
digitized without having set proper snapping environments.
4. Flip
Line
Reverses the from-to direction of line features.
5. Generalize
Simplifies the input features using a specified maximum offset tolerance.
The output features will contain a subset of the original input vertices.
6. Snap
Moves points or vertices to coincide exactly with the vertices, edges, or
end points of other features. Snapping rules can be specified to control
whether the input vertices are snapped to the nearest vertex, edge, or endpoint
within a specified distance.
7. Trim Line
Removes portions of a line that extend a specified distance past a line intersection (dangles). Any line that does not touch another line at both
endpoints can be trimmed, but only the portion of the line that extends past
the intersection by the specified distance will be removed.
· Toolsets of the Editing toolbox
1. Conflation
GIS data often comes from many sources. Spatial and attribute differences among various data sources sometimes requires you to resolve the inconsistencies before you can make use of the data. Conflation tools help you reconcile data from multiple sources and obtain the best possible data quality for analysis and mapping.
Thank You
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