Contents

• 1. Introduction
• 2. Detailed explanation of frame 1 to 6.
• 3. Conclusion

Introduction

• The Manual mode is used to do perform individual simulations. The data is not saved on disc.
• The Automatic Mode is used to perform long range

1. The program uses a data base which is stored in the directory C:\Now-new. The name of this directory can be changed changed. See Parameter Menu. In this directory there are two files (progname$) : PLANET3X and PLANET3Y.

   PLANET3X is the standard file name.
   PLANET3Y is non standard, but you can also use your own.

   Files

   In the directory C://Now-New there are also the files Meeus1.DB etc.
2. The files PLANET3X come with 4 extensions: .DB .OU and .TX and .CM They are stored in namecm$, nameou$, namepr$, and namedb$ in subroutine INIT0 and DISPLAY1 filenm1$ stores the extension .TX (Created in GETFLNM)
   • namecm$ and filenmcm$ are used in the subroutines READCOM and WRITECOM
   • namedb$ and filenmdb$ are used in the subroutines READDB and WRITEDB
     This is a Binary File
   • nameou$ and filenmou$ are used in the subroutines READDATA and WRITEDATA. This Random file has a variable length. These files are also used in the subroutine PRINTDATA (To print and to display)
   • namepr$ and filenmpr$ are used in the subroutine PRINTFILE
   READCOM and WRITECOM are used in the subroutines: DISPLAY1, FIGURES1
   READDB is used in sub: MAIN and WRITEDB is used in the sub: WRITEDATA
   READDATA is used in sub: DISPLAY1 and WRITEDATA is used in the subroutine: Main
   PRINTFILE is used in sub: Main
   

   Two important parameters used in file IO are savedb and restoredb
   Both parameters are used to control the subroutines

   • savedb is used to make a distintion between AUTOMATIC and MANUAL mode.
     In AUTOMATIC mode savedb is set to one. In that case the program uses predefined comands
     and MANUAL mode savedb is set to one. In that case the program uses the user selected simulation examples
     
   • restoredb is used after the first WRITEDB command.

   General use of variables

3. Two important parameters used are test and subtest
   The parameter test is used to indicate the tests of the control form
   The parameter subtest is used to indicate the tests of the Figure Form
   
4. To perform subtest 4 proceed as follow:
   1. From the Menu Display Select parameter 12 Sub Test and enter parameter 4.
   2. From the Control Form Select View Commands
   3. From the Control Form Select Command excution

   Subroutine usesage of Forms.

   • The "Control Form" is primarily used by the subroutines DISPLAY, DISPLAY1 andInit0
     The subroutine DISPLAY is called by the Subroutine Main CommandTest uses DISPLAY and DISPLAY1
   • The "Display Form" is primarily used by the subroutines DISPLAY1 and Main
     The subroutine DISPLAY is called by the Subroutine Main
   • The "Figure Form is primarily used by the subroutines Figures and Figures1
     The subroutine FIGURES is called by the Subroutine DISPLAY1
   • The Menu Form is primarily used by the subroutines Menu and Menu1
     The subroutine Menu is called by the Subroutine DISPLAY.

  Select Case subtest%            ' sub test
  Case 1                          ' Test 2      influence of S, M and Venus
    testdb(i) = 2: phidb(i) = 0: rrdb(i) = 0: enddb(i) = 1000: TDB(i) = 50
    cdb(i) = 0: disdb(i) = -1: savdb(i) = 1: ecdb(i) = ec0: specdb(i) = 0
    star2 = 2

Reflection 1

Reflection 2

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