|
|
Draw Overlaps Tool
|
Open
Table of Contents
Target layer: Polygon
Description: Drag a selection box. All polygons intersected by
the box will be analyzed for overlaps and if present the overlaps will be drawn
with the user set symbol. The symbol can be set in the ET GeoTools control panel
- Draw Tab.
Advantages:
- Analyzes the topological relations between polygons - no matter what the
data source is (shapefile or Geodatabase)
- The license of ArcGIS does not matter (ArcView is good enough)
- Allows finding topological problems which can be fixed with one of the other
tools of ET GeoTools
Notes:
- ArcGIS 8.3 users can use the ET GeoTools
Control Panel - Polygon Edit Settings tab to specify whether Map
Topology to be used with the tool. Using Map Topology improves the
performance of the function.
- Since ArcGIS (all current versions) has problems with overlay operations
performed on polygons defined with true arcs, internal ArcGIS errors might
occur if there are true arcs polygons in the dataset.
- To improve the performance of the tool, apply it on small portions of your
data (about 500 polygons) at a time.
Example:
| Before |
After
|
 |
 |
Copyright © Ianko Tchoukanski