1CONRAS(3NCARG) NCAR GRAPHICS CONRAS(3NCARG)
2
6 CONRAS - draws a two dimensional contour map from irregularly
7 distributed data. This is the super version of the Conran_family.
8
10 CONRAS is approaching obsolescence. If you have available an
11 interpolation package which can do a random to gridded interpolation
12 equal to that built into the Conran_family, then we recommend that you
13 grid your dataset and use the Conpack utility instead. Refer to the
14 conpack and conpack_params man pages as well as the NCAR Graphics
15 Contouring and Mapping Tutorial.
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18 CONRAS (XD,YD,ZD,NDP,WK,IWK,SCRARR)
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21 XD Input, real array -- of dimension NDP containing the X
22 coordinates of the data points.
23 YD Input, real array -- of dimension NDP containing the Y
25 coordinates of the data points.
26 ZD Input, real array -- of dimension NDP containing the data
28 values at the points.
29 NDP Input, integer -- is the number of data points to be
31 contoured. NDP must be 4 or larger.
32 WK Input, real array -- workspace of dimension 15*NDP.
34 IWK Input, integer array -- workspace which must be dimensioned
36 at least IWK((27+NCP)*NDP).
37 The parameter NCP controls the number of data points to be
39 used in the interpolation. Increasing NCP causes more of
40 the surrounding data to influence the point of
41 interpolation. In the case of linear interpolation NCP is
42 always 4. In the case of C1 interpolation, NCP can vary
43 from 2 to 25 with 4 as the default.
44 The interpolation option is selected using parameter ITP.
46 See the conran_family_params man page for a description of
47 all internal parameters.
48 SCRARR Real work array of dimension at least (RESOLUTION**2) where
50 RESOLUTION is 40 by default.
51 Alternate resolutions are set using parameter SSZ. See the
53 conran_family_params man page.
54
56 The contours will be drawn as smoothed dashed or solid lines using
57 splines under tension. There may be characters along the lines.
58 Crowded contour lines may be thinned. Many other options are available
59 through the use of internal parameters. See the conran_family_params
60 man page.
61 Quick and standard-and-smooth versions of the Conran_family are also
63 available through entries CONRAQ and CONRAN, respectively.
64
66 Use the ncargex command to see the relevant example tconas.
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69 To use CONRAS, load the NCAR Graphics libraries conras, dashsupr,
70 ncarg, ncarg_gks, and ncarg_c, preferably in that order.
71 The conras and dashsupr libraries are not loaded as part of the normal
73 NCAR Graphics installation. They can be loaded by the user directly,
74 or loaded implicitly through the use of the -super option of the
75 ncargf77 command.
76 SUPER Command: "ncargf77 -super mycode.f"
80
82 See the conran_family man page for a description of all Conran_family
83 error messages and/or informational messages.
84
86 Online: conraq, conran, conran_family_params, conran_family, conop1,
87 conop2, conop3, conop4, conpack, conpack_params, bivar,
88 dashline_family, ncargf77
89 Hardcopy: NCAR Graphics Contouring and Mapping Tutorial; NCAR Graphics
91 Fundamentals, UNIX Version; User's Guide for NCAR GKS-0A Graphics
92
94 Copyright (C) 1987-2007
95 University Corporation for Atmospheric Research
96 This documentation is free software; you can redistribute it and/or
98 modify it under the terms of the GNU General Public License as
99 published by the Free Software Foundation; either version 2 of the
100 License, or (at your option) any later version.
101 This software is distributed in the hope that it will be useful, but
103 WITHOUT ANY WARRANTY; without even the implied warranty of
104 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
105 General Public License for more details.
106 You should have received a copy of the GNU General Public License along
108 with this software; if not, write to the Free Software Foundation,
109 Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
110UNIX March 1993 CONRAS(3NCARG)