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GIS Feature Editing: Mastering Essential Techniques for Spatial Data Management

Learn how to edit, maintain topology, and manage spatial relationships efficiently in GIS. Explore digitizing, attribute editing, and querying methods.

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GIS Feature Editing: Mastering Essential Techniques for Spatial Data Management

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Presentation Transcript

  1. Basic Spatial Queries

  2. From Digitizing to Editing • Editing feature shapes • The editing process • Maintaining spatial relationships • Editing feature attributes • Creating events from tabular data

  3. Editing Feature Shapes • It all starts with a sketch

  4. The Editing Process • Add your reference data • Start EDIT session • Set editing environment • Target layer • Snapping distance • Identify the feature’s sketch • Edit your vertices • Be sure to save your edits

  5. Maintaining Topology • Maintaining spatial relationships

  6. Editing With Topology

  7. Editing Feature Attributes • Attributes FeatureDialog • Attribute Table

  8. Calculating Attributes • Field Calculator

  9. Digitizing Features

  10. Points From Tables

  11. Basic Spatial Queries

  12. Query By Location

  13. Query By Attribute

  14. TIMBER STANDS TIMBER STANDS Not So Basic Spatial Query

  15. HLHI HLLI LLHI LLLI HLHI HLLI LLHI LLLI HIHI Bool HL: HIGH LITERACY LL: LOW LITERACY HI: HIGH INCOME LI: LOW INCOME

  16. Point-in-Polygon

  17. Surface class Frequency (ha) Commercial, non-flood 77 Commercial, flood 25 Residential, non-flood 27 A B C Residential, flood 120 Commercial Residential Commercial - non-flood Commercial - flood Residential - flood Residential - non-flood Flood zone

  18. Recode / Reclassify

  19. Recode / Reclassify

  20. Overlay

  21. Overlay

  22. Overlay

  23. Point/Line-Polygon

  24. Buffer

  25. Buffering Lines

  26. Buffering Areas

  27. The Simple Secret of GIS

  28. Buffer Application

  29. Buffer Application

  30. Select-By-Location

  31. Select-By-Location

  32. Voronoi / Thiessen

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