GENERAL MAP PROJECTION LANGUAGE - MAD 



COMPUTER - IBM 7090 W/ 

 CAlCOMP 763 

 (COPY ON FILE AT NODC) 



CONVERSION (OR GENERATION) OF LATITUDE AND LONGITUDE VALUES TU MAP 

 PROJECTION COORDINATES. INCLUDES ALL COMMONLY EMPLOYED PROJECTIONS 

 OF SPHERE. OBLIQUE CASES MAY BE AUTOMATICALLY OBTAINED. AUTHOR — W. 

 R. TOBLER. 



THE UNIVERSITY OF MICHIGAN 

 DEPARTMENT OF GEOGRAPHY 

 ATTN. DR. W. R. TOBlER 

 ANN ARB0R» MICHIGAN 4810^ 



FINITE MAP PROJECTION DISTORTIONS LANGUAGE - MAD 



COMPUTER - IBM 7090 

 (COPY ON FILE AT NODC) 



PROGRAMS AND SUBROUTINES TO ESTIMATE THE ERRORS INTRODUCED BY THE SUB- 

 STITUTION OF MAP PROJECTION COORDINATES FOR SPHERICAL COORDINATES. 

 STATISTICAL COMPUTATIONS OF FINITE DISTORTION ARE RELATED TO TISSOT'S 

 INDICATRIX AS A GENERAL CONTRIBUTION TO THE ANALYSIS OF MAP PROJEC- 

 TIONS. REF. TECHNICAL REPORT NO. 3 'GEOGRAPHICAL COORDINATE COMPUTA- 

 TIONS PART III, BY W. R. TOBLER, DEPT. OF GEOGRAPHY. 



THE UNIVERSITY OF MICHIGAN 

 ANN ARBOR, MICHIGAN 



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