The theory of operation for each 0.01 x 0.02 inch area 
is, therefore, the basis for the entire UNAMACE operation. The 
computer directs the output printing table to the specific 0.01 
x 0.02 inch picture area to be printed. It computes the coordinates 
of the conjugate image points for this area on the two input 
diapositives on the basis of an assumed approximate elevation and 
the input mathematical orientation and distortion data and then 
directs the input scanners to scan and correlate that area. The 
first assumption is obtained from a manual determination but 
thereafter this value is obtained from the true elevation deter- 
mined for the previous 0.01 x 0.02 inch incremental area. The 
analog correlators match the areas and provide to the computer 
the exact amount and direction of mis-registration. This value 
is used by the computer to compute the elevation difference and 
then adds this value to the assumed elevation, thereby obtaining 
the true elevation. The picture image being scanned on the input 
diapositive is printed by the orthophoto output scanner. Con- 
currently, the true elevation is stored in the computers' magnetic 
core memory and the drop line output scanner prints the appropriate 
elevation line. The computer then selects the next 0.01 x 0,02 
inch incremental area and repeats the process over and over until 
the model is finished. If the system fails to correlate or to 
determine a true elevation for a 0.01 x 0.02 inch incremental 
area, a special program is injected specifying exactly how to 
proceed. These operations for each 0.01 x 0.02 inch increment 
requires 10 milliseconds. 
Further details concerning the theory of operation is 
contained in a paper entitled "The Universal Automatic Map 
Compilation Equipment," by Dr. Sidney Bertram, presented 
at the Tenth Congress of the International Society of Photo- 
grammetry, Lisbon, Portugal, September 1964, and published in 
the Archives for that meeting and in Photogrammetric Engineering 
for March 1965, 
63. Equipment Components: As partially shown in Figure 11, 
the UNAMACE consists of five basic components: (1) A Bunker- 
Ramo BR 133/141 Computer System, (2) Four dual function input/ 
output photographic image scanning and printing tables, (3) A 
control console for stereoviewing and controlling all operations, 
(4) Electronic components and power supply cabinets, and (5) A 
Bunker-Ramo BR 170/192 magnetic tape I/O system. 
  
Table of dimensions of components and weight are as follows: 
  
  
Item Height Width Depth Weight Quantity 
Table 50" 76.25" 48.75" 6500 1bs. 4 
Table Electronics Cabinet 48 23 24 360 4 
Control Console 58 67 31 550 1 
Two Bay Electronics 69 46 30 1100 1 
Cabinet 
Computer 64 21.5 17.5 600 1 
Controller 59 20 16.5 350 1 
Magnetic Tape Unit 59 20 16.5 400 1 
Magnetic Tape Controller 59 20.5 18 510 1 
A brief functional description of these components is as 
follows: 
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