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117 lines
3.6 KiB
117 lines
3.6 KiB
2 years ago
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\chapter{The SEACO Database Format} \label{appx:seaco}
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The following code segment reads a SEACO database.
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\begin{verbatim}
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C --Open the database file
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NDB = 11
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OPEN (UNIT=NDB, ..., STATUS='OLD', FORM='UNFORMATTED')
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C --Read the header information
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READ (NDB) TITLE, CNAME, CDATE, CTIME, MNAME, MDATE, MTIME
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C --TITLE - the title of the database (CHARACTER*80)
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C --CNAME - the program which created the database (CHARACTER*8)
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C --CDATE, CTIME - the date (DD-MM-YY) and time (HH:MM:SS)
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C -- the database was created (both CHARACTER*8)
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C --MNAME - the program which last modified the database
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C -- (CHARACTER*8)
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C --MDATE, MTIME - the date (DD-MM-YY) and time (HH:MM:SS)
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C -- the database was last modified (both CHARACTER*8)
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READ (NDB) NDIM, NUMNP, NUMEL, NLINK, NUMMAT,
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& NVARNP, NVAREL, NVARGL, IBLKNV, IBLKEV, IPACK
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C --NDIM - the number of coordinates per node
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C --NUMNP - the number of nodes
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C --NUMEL - the number of elements
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C --NLINK - the number of nodes per element
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C --NUMMAT - the number of materials
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C --NVARNP - the number of nodal variables
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C --NVAREL - the number of element variables
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C --NVARGL - the number of global variables
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C --IBLKNV - the nodal variable blocking flag, must be 0
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C --IBLKEV - the element variable blocking flag, must be 0
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C --IPACK - the packed data flag, must be 1
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\end{verbatim}
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\newpage
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\begin{verbatim}
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C --Read the coordinate and variable names
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IF (NDIM .GT. 0) THEN
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READ (NDB) (NAMECO(I), I=1,NDIM)
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C --NAMECO - the names of the coordinates (CHARACTER*8)
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END IF
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IF (NVARNP .GT. 0) THEN
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READ (NDB) (NAMENV(I), I=1,NVARNP)
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C --NAMENV - the names of the nodal variables (CHARACTER*8)
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END IF
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IF (NVAREL .GT. 0) THEN
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READ (NDB) (NAMEEV(I), I=1,NVAREL)
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C --NAMEEV - the names of the element variables (CHARACTER*8)
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END IF
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IF (NVARGL .GT. 0) THEN
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READ (NDB) (NAMEGV(I), I=1,NVARGL)
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C --NAMEGV - the names of the global variables (CHARACTER*8)
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END IF
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C --Read the coordinate, connectivity, and material arrays
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IF (NDIM .GT. 0) THEN
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READ (NDB) ((CORD(I,INP), INP=1,NUMNP), I=1,NDIM)
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C --CORD - the coordinates for each node
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END IF
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IF (NUMEL .GT. 0) THEN
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DO 100 IEL = 1, NUMEL
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READ (NDB) (LINK(I,IEL), I=1,NLINK)
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C --LINK - the connectivity array (nodes of each element)
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100 CONTINUE
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END IF
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IF (NUMMAT .GT. 1) THEN
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READ (NDB) (MAT(IEL), IEL=1,NUMEL)
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C --MAT - the material for each element
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END IF
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\end{verbatim}
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\newpage
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\begin{verbatim}
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C --Read the time steps
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110 CONTINUE
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READ (NDB, END=900) TIME
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C --TIME - the current time step time
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IF (NVARNP .GT. 0) THEN
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DO 120 NV = 1, NVARNP
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READ (NDB) (VARNP(NV,INP), INP=1,NUMNP)
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C --VARNP - the nodal variables at each node
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C -- for the current time step
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120 CONTINUE
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END IF
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IF (NVAREL .GT. 0) THEN
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DO 130 NV = 1, NVAREL
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READ (NDB) (VAREL(NV,IEL), IEL=1,NUMEL)
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C --VAREL - the element variables at each element
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C -- for the current time step
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130 CONTINUE
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END IF
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IF (NVARGL .GT. 0) THEN
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READ (NDB) (GLOBL(NV), NV=1,NVARGL)
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C --GLOBL - the global variables for the current time step
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END IF
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C --Handle time step data
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...
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GOTO 110
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900 CONTINUE
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C --Handle end of file on database
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...
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\end{verbatim}
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