Handbook of Aerial Mapping and Photogrammetry

Originally published in 1952, this book is intended as an introductory guide to aerial mapping and photogrammetry. The main emphasis is on making maps during wartime, when accuracy is paramount and information may be minimal; Trorey had experience of this while serving with the Canadian Military Survey in WWII. This book will be of value to anyone with an interest in mapmaking.List of tables; Bibliography; Notation; 1. Perspective principles; 2. Measurement of angles from obliques; 3. Perspective grid and four-point methods; 4. Measurement of height from a single oblique; 5. Verticals: fundamental considerations of cover, parallax and stereoscopy; 6. Parallax and elevation calculations; 7. Radial-line triangulations, graphical and mechanical; 8. Rectification means; 9. Subdivisions of an air survey mapping operation; 10. Principles of stereoscopic plotting instruments; 11. The multiplex projector; Appendix 1. Standard mapping procedure Royal Canadian Engineers; Appendix 2. Multiplex and stereoplainigraph: considerations governing minimum contour interval; Appendix 3. The Kelsh plotter; Index.