Photogrammetry & Special Instrument
Photogrammetry, Advantage & Disadvantage of Photogrammetry, Types of Photogrammetry- Terrestrial Photogrammetry (Horizontal Photograph), Aerial Photogrammetry. Difference Between a Map and An Aerial Photograph, Types of Photographs- Vertical Photograph, Oblique Photograph. Terminologies in Aerial Surveying– Scale of Photograph, Datum Scale of Photograph, Average Scale of Photograph, Flying Height, Crab, Drift. Ground Co-Ordinates & Length of a Line From a vertical Photograph, Relief Displacement, Area Covered By One Photograph, Number of Photograph Required to Cover an Area – 1.When No overlap is Present, 2.When overlap is Present (Longitudinal & Side)- (I). When Total Ground Area (A) is given, (II). When Length & Width are given of total Ground, Exposure Interval, Air Base.
Topics
In compass surveying each control point is established with the help of linear and angular measurements and this process is termed as traversing. Traverse, Meridian, Bearing are discussed in detailed.
In curve we details discuss about curve, type of curve, basic definitions of curve, elements of circular curve, apex distance, chainage of tangent points, intermediate chord length.
