Ubuntu Manpage: Conrec_family - is a set of two dimensional contour mapping routines. There are options

NAME

       Conrec_family - is a set of two dimensional contour mapping routines.  There are options
       for generating standard contours, smoothing contour lines, labeling the contours, and
       removing crowded lines.

STATUS

       Conrec_family is obsolete.  It has been replaced by the contouring package, Conpack.  See
       the Conpack entry CPCNRC for a simple CONREC replacement.  For more complex examples refer
       to the conpack and conpack_params man pages as well as the NCAR Graphics Contouring and
       Mapping Tutorial.

       Conrec_family continues to be provided for compatibility of early NCAR Graphics codes.  If
       you are writing new code, we suggest that you use the more general and rigorous Conpack
       contouring package.  All Conrec_family options are available via Conpack parameters.

SYNOPSIS

       EZCNTR(Z,M,N) - draws a contour map based upon a set of default options.
       CONREC(Z,L,M,N,FLO,HI,FINC,NSET,NHI,NDOT) - draws a contour map using options specified as
       input arguments.

ACCESS

The Conrec family contains only two user callable entries, EZCNTR, and CONREC. However,
these two entries can be invoked in four different ways to create contour plots which vary
considerably in appearance. The four variations include quick, normal, smooth, and super
contour lines. This progression represents a tradeoff between speed of computation and
the appearance of the contour plots. These variations are specified through selected
command line options of the ncargf77 command.

To use EZCNTR or CONREC, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c,
preferably in that order. Other optional libraries to create the quick, smooth, and super
contours will automatically be linked by the ncargf77 command. To run a code called
mycode.f which has one or more calls to entry EZCNTR or CONREC, issue one of the commands:

NORMAL Command: "ncargf77 mycode.f"

The contours will be drawn as unsmoothed dashed or solid lines that can include
characters along the lines.

QUICK Command: "ncargf77 -quick mycode.f"

The contours will be drawn as unsmoothed dashed or solid lines without
characters along the lines. The QUICK drawing algorithm is faster and cruder
than that used for NORMAL contour lines. QUICK uses a cell-by-cell analysis
rather than following each contour line to completion in sequence as is done in
the NORMAL algorithm.

SMOOTH Command: "ncargf77 -smooth mycode.f"

The contours will be drawn as smoothed dashed or solid lines using splines under
tension. There may be characters along the lines.

SUPER Command: "ncargf77 -super mycode.f"

The contours will be drawn as smoothed dashed or solid lines using splines under
tension. There may be characters along the lines. Crowded lines can be
thinned.

MESSAGES

       When error conditions are detected, the support routine SETER is called in such a way that
       it writes a message to the standard error file (as defined by I1MACH(4)) and then
       terminates execution. The possible error messages are as follows:

       CONREC  - DIMENSION ERROR - M*N .GT. (2**IARTH)
       The array to be contoured is dimensioned M by N.  This is larger than the address space on
       this computer (2**IARTH) where IARTH is the size of an address integer.  Check your
       dimension sizes.

       STLINE  - WARNING FROM ROUTINE STLINE IN CONREC--WORK ARRAY OVERFLOW
       This warning message is printed to standard output if the number of contour lines for a
       contour level would exceed the dimension size of work array IR in routine STLINE.

       Should this happen the following messages are also sent to the output plot file:

       **WARNING--PICTURE INCOMPLETE**
       WORK ARRAY OVERFLOW IN STLINE

       Processing stops before the actual array overflow occurs and control is returned to the
       calling program.

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