1CONRAQ(3NCARG) NCAR GRAPHICS CONRAQ(3NCARG)
2
6 CONRAQ - draws a two dimensional contour map from irregularly
7 distributed data. This is the small quick version of the
8 Conran_family. It also has the fewest available number of options.
9
11 CONRAQ is approaching obsolescence. If you have available an
12 interpolation package which can do a random to gridded interpolation
13 equal to that built into the Conran_family, then we recommend that you
14 grid your dataset and use the Conpack utility instead. Refer to the
15 conpack and conpack_family_params man pages as well as the NCAR
16 Graphics Contouring and Mapping Tutorial.
17
19 CONRAQ (XD,YD,ZD,NDP,WK,IWK)
20
22 XD Input, real array -- of dimension NDP containing the X
23 coordinates of the data points.
24 YD Input, real array -- of dimension NDP containing the Y
26 coordinates of the data points.
27 ZD Input, real array -- of dimension NDP containing the data
29 values at the points.
30 NDP Input, integer -- is the number of data points to be
32 contoured. NDP must be 4 or larger.
33 WK Input, real array -- workspace of dimension 15*NDP.
35 IWK Input, integer array -- workspace which must be dimensioned
37 at least IWK((27+NCP)*NDP).
38 The parameter NCP controls the number of data points to be
40 used in the interpolation. Increasing NCP causes more of
41 the surrounding data to influence the point of
42 interpolation. In the case of linear interpolation NCP is
43 always 4. In the case of C1 interpolation, NCP can vary
44 from 2 to 25 with 4 as the default.
45 The interpolation option is selected using parameter ITP.
47 See the conran_family_params man page for a description of
48 all internal parameters.
49
51 Contour lines are not smoothed or thinned, but a number of options are
52 available through the use of internal parameters. See the
53 conran_family_params man page.
54 Super and standard-and-smooth versions of the Conran_family are also
56 available through entries CONRAS and CONRAN, respectively.
57
59 Use the ncargex command to see the relevant example tconaq.
60
62 To use CONRAQ, load the NCAR Graphics libraries conraq, ncarg,
63 ncarg_gks, and ncarg_c, preferably in that order.
64 The special conraq library is not loaded as part of the normal NCAR
66 Graphics installation. It can be loaded by the user directly, along
67 with the above three standard libraries, or loaded implicitly through
68 the use of the -quick option of the ncargf77 command.
69 QUICK Command: "ncargf77 -quick mycode.f"
73
75 See the conran_family man page for a description of all Conran_family
76 error messages and/or informational messages.
77
79 Online: conran, conras, conran_family_params, conran_family, conop1,
80 conop2, conop3, conop4, conpack, conpack_params, bivar,
81 dashline_family, ncargf77
82 Hardcopy: NCAR Graphics Contouring and Mapping Tutorial; NCAR Graphics
84 Fundamentals, UNIX Version; User's Guide for NCAR GKS-0A Graphics
85
87 Copyright (C) 1987-2007
88 University Corporation for Atmospheric Research
89 This documentation is free software; you can redistribute it and/or
91 modify it under the terms of the GNU General Public License as
92 published by the Free Software Foundation; either version 2 of the
93 License, or (at your option) any later version.
94 This software is distributed in the hope that it will be useful, but
96 WITHOUT ANY WARRANTY; without even the implied warranty of
97 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
98 General Public License for more details.
99 You should have received a copy of the GNU General Public License along
101 with this software; if not, write to the Free Software Foundation,
102 Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
103UNIX March 1993 CONRAQ(3NCARG)