bionic (3) conraq.3NCARG.gz

Provided by: libncarg-dev_6.4.0-9_amd64 bug

NAME
       CONRAQ - draws a two dimensional contour map from irregularly distributed data.  This is the small quick
       version of the Conran_family.  It also has the fewest available number of options.


STATUS
       CONRAQ is approaching obsolescence.  If you have available an interpolation package which can do a random
       to gridded interpolation equal to that built into the Conran_family, then we recommend that you grid your
       dataset and use the Conpack utility instead.  Refer to the conpack and conpack_family_params man pages as
       well as the NCAR Graphics Contouring and Mapping Tutorial.


SYNOPSIS
       CONRAQ (XD,YD,ZD,NDP,WK,IWK)


DESCRIPTION
       XD          Input, real array -- of dimension NDP containing the X coordinates of the data points.

       YD          Input, real array -- of dimension NDP containing the Y coordinates of the data points.

       ZD          Input, real array -- of dimension NDP containing the data values at the points.

       NDP         Input, integer -- is the number of data points to be contoured.  NDP must be 4 or larger.

       WK          Input, real array -- workspace of dimension 15*NDP.

       IWK         Input, integer array -- workspace which must be dimensioned at least IWK((27+NCP)*NDP).

                   The parameter NCP controls the number of data points to be used in the interpolation.
                   Increasing NCP causes more of the surrounding data to influence the point of interpolation.
                   In the case of linear interpolation NCP is always 4.  In the case of C1 interpolation, NCP
                   can vary from 2 to 25 with 4 as the default.

                   The interpolation option is selected using parameter ITP.  See the conran_family_params man
                   page for a description of all internal parameters.


USAGE
       Contour lines are not smoothed or thinned, but a number of options are available through the use of
       internal parameters.  See the conran_family_params man page.

       Super and standard-and-smooth versions of the Conran_family are also available through entries CONRAS and
       CONRAN, respectively.


EXAMPLES
       Use the ncargex command to see the relevant example tconaq.


ACCESS
       To use CONRAQ, load the NCAR Graphics libraries conraq, ncarg, ncarg_gks, and ncarg_c, preferably in that
       order.

       The special conraq library is not loaded as part of the normal NCAR Graphics installation.  It can be
       loaded by the user directly, along with the above three standard libraries, or loaded implicitly through
       the use of the -quick option of the ncargf77 command.

       QUICK     Command: "ncargf77 -quick mycode.f"


MESSAGES
       See the conran_family man page for a description of all Conran_family error messages and/or informational
       messages.


SEE ALSO
       Online: conran, conras, conran_family_params, conran_family, conop1, conop2, conop3, conop4, conpack,
       conpack_params, bivar, dashline_family, ncargf77

       Hardcopy: NCAR Graphics Contouring and Mapping Tutorial; NCAR Graphics Fundamentals, UNIX Version; User's
       Guide for NCAR GKS-0A Graphics


       Copyright (C) 1987-2009
       University Corporation for Atmospheric Research
       The use of this Software is governed by a License Agreement.