Pentax R326 User Manual

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PSF Software Ver.365
 
31
 
 7  OFFSET SHOTS 
 
General pictures of measurement 
 
OFFSET SHOTS can be used when the Prism cannot be positioned because of an   
obstacle in the way. With this type of measurement, the Target coordinates are measured and 
stored indirectly. Coordinates values input can be omitted by designating the Station point number 
whenever the Station coordinates are stored in the internal memory.
 
 
General pictures 
 
 
            D, C and H are offset value. 
                                                                   
Top view 
                                                                                                                                 
Target Point 
                                                                                                                                                    ( 
-
 ) 
 
                                                                                                                                                      C 
                         
Backsight Point
                                          Obstacle 
                         
Reflector 
                                                                                                                                            D 
                                                                                                                     
Reflector
              ( + ) 
                                                                                                                                Offset Point 
 
 
 
 
                                               
Station Point 
 
 
 
 
 
 
                                                                                                                                     
Target Point 
                                                                                                                                                  ( + ) 
                 
Backsight Point
                                                                                                  H 
                     
  Reflector   
                                                                                  Obstacle 
 
 
                                                                                                                                         
    Reflector   
 
                                                                                                                                Offset Point 
 
 
 
 
                                           
Station Point