1EZISOS(3NCARG)                   NCAR GRAPHICS                  EZISOS(3NCARG)
2
3
4

NAME

6       EZISOS - Draws an isosurface.
7

SYNOPSIS

9       CALL EZISOS (F,MU,MV,MW,EYE,SLAB,FISO)
10

C-BINDING SYNOPSIS

12       #include <ncarg/ncargC.h>
13
14       void c_ezisos (float *f, int mu, int mv, int mw,
15       float eye[3], float *slab, float fiso)
16

DESCRIPTION

18       F           (an input array of type REAL, dimensioned MU x MV x MW) is
19                   a three-dimensional array of data defining the function
20                   f(u,v,w). The entire array (elements F(IU,IV,IW), for IU =
21                   1 to MU, IV = 1 to MV, and IW = 1 to MW) is to be used. The
22                   data are considered to lie in a box in 3-space with
23                   opposite corners (in the UVW coordinate system) (1.,1.,1.)
24                   and (REAL(MU),REAL(MV),REAL(MW)). The element F(IU,IV,IW)
25                   is considered to be the value of the function f at the
26                   point (REAL(IU),REAL(IV),REAL(IW)).
27
28       MU          (an input expression of type INTEGER) is the first
29                   dimension of the array F.
30
31       MV          (an input expression of type INTEGER) is the second
32                   dimension of the array F.
33
34       MW          (an input expression of type INTEGER) is the third
35                   dimension of the array F.
36
37       EYE         (an input array of type REAL, dimensioned 3) is the
38                   position of the eye in the UVW coordinate system. The eye
39                   position, at (EYE(1),EYE(2),EYE(3)), must be outside the
40                   box containing the data. The point being looked at is at
41                   the center of the data box and the projection plane is
42                   perpendicular to the line of sight. While gaining
43                   experience with the routine, a good choice for EYE is
44                   (5.*REAL(MU),3.5*REAL(MV),2.*REAL(MW)).
45
46       SLAB        (a scratch array of type REAL, dimensioned at least n x n,
47                   where "n" is defined to be MAX[MU,MV,MW]+2) is a workspace
48                   for ISOSRF.
49
50       FISO        (an input expression of type REAL) is the value of fiso in
51                   the equation f(u,v,w)=fiso, which defines the isosurface to
52                   be drawn.
53

C-BINDING DESCRIPTION

55       The C-binding argument descriptions are the same as the Fortran
56       argument descriptions, with the following exceptions:
57
58       f           t is dimensioned mw by mv by mu
59
60       mu          The third dimension of the array f
61
62       mw          The first dimension of the array f
63

USAGE

65       EZISOS is called to draw an isosurface if all of the input array is to
66       be used (rather than a subset of it), if ISOSRF's argument IFLAG is to
67       be chosen internally, and if a frame advance is to be done after the
68       isosurface is drawn.  If any of these conditions is not met, use ISOSRF
69       instead.
70

EXAMPLES

72       Use the ncargex command to see the following relevant example: tisosr,
73       fisissrf.
74

ACCESS

76       To use EZISOS or c_ezisos, load the NCAR Graphics libraries ncarg,
77       ncarg_gks, and ncarg_c, preferably in that order.
78

SEE ALSO

80       Online: isosurface, isosurface_params, isgeti, isgetr, isosrf, isseti,
81       issetr, pwrzi, ncarg_cbind
82
83       Hardcopy: NCAR Graphics Fundamentals, UNIX Version
84

86       Copyright (C) 1987-2009
87       University Corporation for Atmospheric Research
88       The use of this Software is governed by a License Agreement.
89
90
91
92UNIX                              March 1993                    EZISOS(3NCARG)
Impressum