ESM 263 Geographic Information Systems

Week 3 - Vector data

• Lecture
  • slides: Vector Data
  • sample data: vector formats
  • US counties
  • WKT
• Reading
  • Bolstad: ch 2: Data Models (through page 50)
  • A Gentle Introduction to GIS: ch 3: Vector Data
  • Why you need to use Geopackage files instead of shapefile or GeoJSON
• Reference
  • QGIS User Guide: 11.5 Interacting with features
  • Spatial Relations
  • Simple Features:
    • Wikipedia
    • R-Spatial
    • OGC ISO Standard
  • File types:
    • Shapefiles
    • Coverages
    • geodatabase
    • geopackage
    • SQLiteBrowser
    • Gaia-Sins
    • SpatialLite
    • SpatiaLite SQL functions reference list
  • Operations
    • Buffering
    • Intersection
    • Union
    • Symmetrical difference
    • Difference
    • Dissolve
    • Clip
    • Merge
    • Select
    • Eliminate
• Lab
  • QGIS Tutorials and Tips:
    • Performing Spatial Joins
      • NYC Subway Lines 2018
      • NYC Subway Lines 2020
    • Handling Invalid Geometries
      • Invalid Geometry Examples - OGC
      • Invalid Geometry Examples - QGIS
  • Bolstad: Lab 9: Buffering & Overlay
    • handout
      • cheat sheet
    • data
• Recordings
  • Lecture
  • Lab1
  • Lab2