Slide 1Photogrammetry Digital Elevation Models Orthophotographs Slide 2 Topographic Mapping – Old School Slide 3 Surveying Instruments Stadia Rod – Distance and elevation…
1.Chapter 2Geometric data acquisition techniques12. Geometric data acquisition techniques1. Traditional Surveying: A Brief SummaryPrior to the 1920s all surveying was done…
Slide 1 Rational grid interval Grid interval >= 0.25 x line spacing Over-gridding slows down the computer Over-gridding often yields misleading error estimates Slide 16…
Slide 1 Oceans and Continents Map Projections Oceans & Seas Map Projections Globe – no distortion, but bulky and difficult to transport Curved surface (3D) 2D Flat…