1. DIGITAL CARTOGRAPHY

2. Data Acquision Primary Secondary
Field Surveys (Total Station and GPS Survey)
Raw data collection
Secondary
Digitizing
Scanning
Importing from other GIS Sources
Purchasing from CAD vendors
Exchange with other agencies

3. Total Station Survey
Coordinate data that is used to plot features on the earths surface are obtained
Some total stations are also able to capture photo images

4. GPS Survey This can be RTK GPS or handheld GPS
GPS techniques provide a low cost but fast and reliable data acquisition method

5. Digitizing Digitizing tablets
Comprise of capturing device to capture points on map into work station
AO tablets cost an average of USD 2000

6. Scanning
Scanners employ sensors to read the data on paper maps, film or other analogue material into digital format.
It is most useful for images and maps with dense line work

7. Satellite Imagery

8. …

9. Aerial Photography

10. Data Storage
There is a variety of storage media for Digital cartography
DVD Rom
CD Rom
PC (Hard Disk)
External hard disk
Memory Stick etc

11. Data Output

12. …

13. Data Output
Plotters
Printers
VDUs

14. Plotters

15. …

16. …

17. Visual Display Units

18. Tablet PC

19. Printers

20. Discussion Questions Group 1 Group 2 Group 3
Discuss rasterisation and vectorisation of digital data with respect to processing data acquired from digital sources. State where each method is most applicable including the advantages and disadvantages.
Group 2
Discuss the processes employed in integrating data from different sources. Your discussion should include formats, scale, projections and resampling rasters.
Group 3
Discuss the applications of digital cartography as well as the career prospects of a modern cartographer.
State some proprietary digital mapping packages and discuss their capabilities and relevance to digital mapping.