1Isosurface(3NCARG) NCAR GRAPHICS Isosurface(3NCARG)
2
6 Isosurface - Allows the user to draw a perspective view of the surface
7 defined by the equation f(u,v,w)=fiso, where the function f is
8 approximated by a 3-dimensional array of data and fiso is a user-
9 specified "isovalue". Contours created by taking slices in any of three
10 directions through the surface are drawn with hidden portions of the
11 contour lines removed.
12
14 EZISOS - May be called to draw an isosurface.
15 ISOSRF - May be called to draw an isosurface.
17 ISGETI - Retrieves the current values of various internal parameters
19 affecting the behavior of ISOSRF.
20 ISGETR - Retrieves the current values of various internal parameters
22 affecting the behavior of ISOSRF.
23 ISSETI - Gives new values to internal parameters.
25 ISSETR - Gives new values to internal parameters.
27 PWRZI - Plots characters in three-space when using ISOSRF.
29
31 c_ezisos,
32 c_isosrf,
33 c_isgeti,
34 c_isgetr,
35 c_isseti,
36 c_issetr,
37 c_pwrzi
38
40 None.
41
43 To use Isosurface, load the NCAR Graphics libraries ncarg, ncarg_gks,
44 and ncarg_c, preferably in that order.
45
47 The error messages described below can be written to the output unit by
48 routines in the package Isosurface. All of these errors are fatal and
49 cause the user's program to terminate execution (on the other hand, all
50 of the errors are easily avoided).
51 ISGETI OR ISGETR - PARAMETER NAME TOO SHORT - x
53 The argument "PNAM", in a call to ISGETI or ISGETR, is only
54 one character long.
55 ISGETI OR ISGETR - PARAMETER NAME NOT KNOWN - xx
57 The argument "PNAM", in a call to ISGETI or ISGETR, begins
58 with two characters that do not constitute one of the legal
59 internal parameter names described in the man page
60 isosurface_params.
61 ISSETI OR ISSETR - PARAMETER NAME TOO SHORT - x
63 The argument "PNAM", in a call to ISSETI or ISSETR, is only
64 one character long.
65 ISSETI OR ISSETR - PARAMETER NAME NOT KNOWN - xx
67 The argument "PNAM", in a call to ISSETI or ISSETR, begins
68 with two characters that do not constitute one of the legal
69 internal parameter names described in the man page
70 isosurface_params.
71 ISINIT - INSTALLATION OF ISOSRF IMPROPERLY DONE
73 This error message means that the screen models used to do
74 hidden-line removal have been found to be improperly
75 dimensioned for the system on which the code is being run.
76 About the only way this can happen is if the distributed
77 code is run on a a machine with sixteen-bit words or if the
78 distributed code has been modified incorrectly.
79
81 Online: isosurface_params, ezisos, isgeti, isgetr, isosrf, isseti,
82 issetr, pwrzi, ncarg_cbind
83 Hardcopy: NCAR Graphics Fundamentals, UNIX Version
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 Isosurface(3NCARG)