Digitization in ArcGIS
- 2. Outline Digitizing overview GIS features Digitizing features Advanced digitizing tools 2GIS TUTORIAL 1 - Basic Workbook
- 3. DIGITIZING OVERVIEW 3GIS TUTORIAL 1 - Basic Workbook
- 4. Why digitize? New maps Map features are wrong Missing features Other? 4GIS TUTORIAL 1 - Basic Workbook
- 5. Digitizing tablets Used to digitize hard copy maps into GIS Transform wire intersections into coordinates of the tablet’s coordinate system Heads down digitizing 5GIS TUTORIAL 1 - Basic Workbook
- 6. Steps for heads down digitizing Tape map to the digitizer Register control points on the map Estimate two conversion equations (one for vertical and one for horizontal coordinates) Digitize vectors (points, lines, or polygons) 6GIS TUTORIAL 1 - Basic Workbook 6 Control points Map Puck Tape
- 7. Heads up digitizing Mouse on a screen Digitizes paper maps, aerial photos, or other images GIS TUTORIAL 1 - Basic Workbook 77
- 8. GIS FEATURES 8GIS TUTORIAL 1 - Basic Workbook
- 9. Points Single features Nodes Line endpoints Vertex points Controls shapes of lines and polygons 9GIS TUTORIAL 1 - Basic Workbook
- 10. Creating points Heads up digitizing Single point features Sketch tool and snapping features Points added as XY event files Points geocoded using addresses 10GIS TUTORIAL 1 - Basic Workbook
- 11. Lines Starting and ending points with shape vertices as needed Vertex points 11 GIS TUTORIAL 1 - Basic Workbook
- 12. Lines Physical attributes of TIGER streets Shape From and To attributes Node Address Lat/long Length GIS TUTORIAL 1 - Basic Workbook 12
- 13. Polygons Three or more lines joined to form a closed area Single polygons or multipart features (Hawaiian islands can be multiple polygons as one feature) 13GIS TUTORIAL 1 - Basic Workbook 0 0 1 2 4 3
- 14. Polygons Physical attributes Shape Area Perimeter Length 14GIS TUTORIAL 1 - Basic Workbook
- 15. 15GIS TUTORIAL 1 - Basic Workbook