Essentials of Aerial Surveying and Photo Interpretation

Abrams adjusted aerial photographs airplane alidade altitude antilog axis azimuth base line base sheet camera cardboard central meridian charts compute construction contour finder contour line control points coordinates correct datum determine difference direction drawing elevation engineer's scale error fiducial marks film flight line focal length focal plane form lines geoid graph grid horizontal hypotenuse hypsography instrument intersections known latitude left print lens lens speed located longitude magnetic map plane measured meters method mosaic Move the hairline necessary negative orientation overlap parallax parallel perpendicular photogrammetric pin guide shafts placed plane table planimetric planimetry plotted polyconic projection position primary control principal point projection sheet projector radial line control ratio reading relief model represent restituted right print scale screws secondary control shutter side slide rule slot Step stereogram stereoscope surface tangent tape tilt topographic traverse triangulation true north