3. A Brief History of Cartography
• These maps were inaccurate mainly:
– Majority of cartographers were mapping from
second hand information from explorers notes
or descriptions
– Or from the rocking decks of ships
– Instrumentation was in its infancy
– Unable to access large areas of land due to
poor road infrastructure.
5. Data Capture - Flight Plan
• The Flight Plan instructs the pilot, where to fly
(flight lines over the project area)
• It details GPS co-ordinates for each camera
event (shutter opening)
• Before GPS flight lines would have been
marked on a paper map and the pilot would
have followed instructions from the navigator
• The camera operator used a ‘bomb sight’
attached to the camera to collect the
photography
8. Data Capture: Stereoscopic Data
Forward Overlap for stereo
viewing and connection of
photos along flight lines is
required
Lateral Overlap for complete
stereo area coverage and
connecting of flight lines is also
required
