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TRANSCRIPT
Best Editing Practices to Reduce Topological Errors
• Snap • Autocomplete • Clip/Split/Merge
On course webpages Video Resources
In the Edit tab,
Set snapping on
Set features to participate in snap
Set snapping tolerance, either interactively, or through settings
Don’t Digitize the Same Edge Twice!
Use Auto Complete Polygon in the Create Features Panel
Use, merge, clip, split in the modify features panel while digitizing
With the Edit tab active,
Modify features panel selected,
Use Transparency While Digitizing!
- Right click on layer in TOC, - Then on Properties - In Color Editor, find
transparency slider - Set transparent level
You can see edges better with transparent layers
Don’t Digitize the Same Edge Twice!
Or digitize a “containing” polygon and use select/clip/discard in the Editor toolbar (see videos for details)
Then Use Topological Tools to Clean Up
• Validate topology (extent, or specified area) • View error table, select error to identify, then fix with
edit tools