Coastal & Marine Geology InfoBank

Home FACS Activities Atlas Geology School Related Sites More

USGS InfoBank program -- trackback

Skip navigational links
Loading
InfoBank Programs: by Name   by Topic  
Expanded Description
Topic Description
Name
trackback
Synopsis
/infobank/programs/plt/naved/trackback.for
Description
  Subroutine to plot background tracklines for NAVED.

       
AUTHOR
  Clint Steele         

    
USAGE
  "a" = argument, "r" = referenced, "s" = set

  
  call trackback               (with the following arguments)
         NumberBack            [variable i*4 r]
         TimeGapBack           [variable i*4 r]
         TekWest               [variable i*4 a]
         TekEast               [variable i*4 a]
         TekSouth              [variable i*4 a]
         TekNorth              [variable i*4 a]
         WindowNumber          [variable i*4 r]
         FileStatus
    
SUBROUTINES
  dwindo              (external Tektronix)          

  twindo              (external Tektronix)          
  pointa              (external Tektronix)          
  drawa               (external Tektronix)          
  dasha               (external Tektronix)          
    
FUNCTIONS
  index               (FORTRAN intrinsic function)  


    
Reads
Writes
Opens
Calls
      call dwindo (LongWestWindow (WindowNumber), 
     *             LongEastWindow (WindowNumber),
     *             LatSouthWindow (WindowNumber), 
     *             LatNorthWindow (WindowNumber) )
      call twindo (TekWest, TekEast, TekSouth, TekNorth) 
      call specialterm (TerminalType)
      call specialmode ('BACKGROUND')
      call pointa (LongBack (AdjustedStart) , 
     *             LatBack  (AdjustedStart) )
                          call drawa (-0.000001, (LatBack (LoopCount) +
     *                          LatBack (LoopCount - LastCount)) / 2.0) 
                          call pointa (-359.999999, 
     *                          (LatBack (LoopCount) +
     *                          LatBack (LoopCount - LastCount)) / 2.0) 
                          call drawa (LongBack (LoopCount),
     *                                LatBack  (LoopCount) ) 
                          call drawa (-359.999999, 
     *                         (LatBack (LoopCount) +
     *                          LatBack (LoopCount - LastCount)) / 2.0) 
                          call pointa (-0.000001, (LatBack (LoopCount) +
     *                          LatBack (LoopCount - LastCount)) / 2.0) 
                          call drawa (LongBack (LoopCount), 
     *                                LatBack  (LoopCount) ) 
                      call drawa (LongBack (LoopCount) , 
     *                            LatBack  (LoopCount) ) 
                      call pointa (LongBack (LoopCount) , 
     *                             LatBack  (LoopCount) ) 
                  call pointa (LongBack (LoopCount) , 
     *                         LatBack  (LoopCount) ) 

Skip footer navigational links

Coastal and Marine Science Centers:  Pacific   St. Petersburg   Woods Hole  
InfoBank   Coastal and Marine Geology Program   Geologic Information   Ask-A-Geologist   USGS Disclaimer  


Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://walrus.wr.usgs.gov/infobank/programs/plt/naved/trackback.doc.html
Page Contact Information: InfoBank staff
Page Last Modified: Mon Sep 16 03:39:15 PDT 2013  (chd)