Measurements from Maps: Principles and Methods of Cartometry describes the accuracy of a variety of measurement techniques that may be used in many fields of science, administration and travel. This book is composed of 23 chapters, and begins with a description of the nature and applications of cartometry. The succeeding chapters deal with methods of measuring distance and area, sources of measurement errors and their analysis, cartometric sampling, the concept of accurate map, and the magnitude of cartometric deformations. These topics are followed by discussions of aerial photograph measurements and the precision of different methods, as well as their suitability for different kind of work. This book also looks into the probabilistic methods of distance measurement, and the geometrical, planimetric, and point-counting methods of area measurement. The last chapters consider the application of digital computer in cartometry and the measurement on Mercator's projection.

Index to Symbols and Characters Used in the Text1 The Nature of Cartometry2 The Nature of the Medium3 The Methods of Measuring Distance4 Measurement of Area5 The Variability of Cartometric Measurements6 Errors of Measurement and Their Analysis7 Statistical Sampling and Cartometry8 Spatial Sampling and Cartometry9 The Concept of the Accurate Map10 Deformations of the Medium11 Correction of Deformation by Measurement Control12 Definition of the Feature to be Measured13 Measurements on Aerial Photographs14 Conventional Linear Measurements and Their Reduction15 Probabilistic Methods of Distance Measurement16 Geometrical Methods of Area Measurement17 Area Measurement by Planimeter18 Direct Measurement of Area by Point-Counting Methods19 Indirect Measurement of Area by Point-Counting Methods20 Area Determined by Linear Measurements21 Cartometry and the Digital Computer22 Measurement on Mercatofs Projection23 The Cartometric Definition, Demarcation and Recovery of Maritime BoundariesReferencesIndex