1LABMOD(3NCARG)                   NCAR GRAPHICS                  LABMOD(3NCARG)
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NAME

6       LABMOD - Presets parameters controlling the appearance of labels drawn
7       by GRIDAL, GRIDL,... et al. LABMOD itself does no plotting and, in
8       order to have any effect, must be called prior to the background-
9       drawing routines for which it is presetting parameters.
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SYNOPSIS

12        CALL LABMOD (FMTX, FMTY, NUMX, NUMY, ISZX, ISZY, IXDC,
13       + IYDC, IXOR)
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C-BINDING SYNOPSIS

16       #include <ncarg/ncargC.h>
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18       void c_labmod (char *fmtx, char *fmty, int numx, int numy,
19       int iszx, int iszy, int ixdc, int iydc, int ixor)
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DESCRIPTION

22       FMTX and FMTY
23                   (input expressions of type CHARACTER) contain format
24                   specifications for the X-axis and Y-axis numerical labels
25                   produced by GRIDAL, GRIDL, HALFAX, or PERIML. The
26                   specification must begin with a left parenthesis and end
27                   with a right parenthesis and must not be more than ten
28                   characters long. Conversions of types E, F, G, and I are
29                   allowed; for example, one might use FMTX=´(F8.2)´ and
30                   FMTY=´(E10.0)´. The default for both formats is ´(E10.3)´.
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32                   NOTE: I formats are allowed by this version of Gridall;
33                   they were not allowed by previous versions.
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35       NUMX        (an input expression of type INTEGER), if non-zero, is the
36                   number of characters in each X-axis numeric label; if LBLX
37                   is a string produced by the format FMTX, then the label
38                   will be the substring LBLX(1:NUMX). If NUMX is 0, then the
39                   label will be the substring LBLX(m:n), where LBLX(m:m) is
40                   the first non-blank character in LBLX, and LBLX(n:n) is the
41                   last non-blank character following LBLX(m:m). Using a non-
42                   zero NUMX causes the labels to be centered differently than
43                   if a zero value is used. The default value for NUMX is 0.
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45       NUMY        (an input expression of type INTEGER) is defined just like
46                   NUMX, but applies to Y-axis numeric labels.
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48       ISZX and ISZY
49                   (input expressions of type INTEGER) are character sizes for
50                   the labels, specified in plotter address units, just as for
51                   the SPPS routines PWRIT and WTSTR. The default value for
52                   both is 10.
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54       IXDC        (an input expression of type INTEGER) is the decrement, in
55                   plotter address units (PAUs - by default, the plotter frame
56                   is 1023 PAUs in width and height), from the left edge of
57                   the current viewport to the nearest X address of the label
58                   specified by FMTY, NUMY, and ISZY. For example, if the
59                   horizontal extent of the current viewport is defined by the
60                   normalized device coordinates .1 and .9, and if IXDC is 60,
61                   and if there has been no call to the SPPS routine SETI
62                   (which can change the size of a PAU), then labels on the Y
63                   axis will end at plotter coordinate 43 (.1*1023+1-60).
64                   Negative values may be used to put labels on the other side
65                   of the viewport; in the example given, changing IXDC to
66                   -878 (-.8*1023 -60) would put the labels on the right side
67                   of the viewport, with their left edges 60 plotter-
68                   coordinate units away from the edge of the viewport. There
69                   are two special values of IXDC:
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71                   ·      If IXDC=0, the Y-axis labels will end 20 plotter
72                          address units to the left of the viewport
73                          (equivalent to using IXDC=20).
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75                   ·      If IXDC=1, Y-axis labels will begin 20 plotter
76                          address units to the right of the viewport
77                          (equivalent to using IXDC=-20-w, where w is the
78                          width of the viewport, in plotter address units).
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80                   The default value of IXDC is 20.
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82                   When HALFAX is called or when GRIDAL is called with IGPH =
83                   2, 6, or 10, IXDC is the distance from the Y axis, rather
84                   than from the minimum viewport coordinate, and the special
85                   values 0 and 1 are equivalent to 20 and -20.
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87       IYDC        (an input expression of type INTEGER) is the decrement, in
88                   plotter address units (PAUs - by default, the plotter frame
89                   is 1023 PAUs in width and height), from the bottom edge of
90                   the current viewport to the nearest Y address of the label
91                   specified by FMTX, NUMX, and ISZX.  Note that negative
92                   values may be used to put labels above the viewport. There
93                   are two special values of IYDC:
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95                   ·      If IYDC=0, the top of the X-axis labels will be 20
96                          plotter address units below the bottom edge of the
97                          viewport (equivalent to using IYDC=20).
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99                   ·      If IYDC=1, the bottom of the X-axis labels will be
100                          20 plotter address units above the top edge of the
101                          viewport (equivalent to using IYDC=-20-h, where h is
102                          the height of the viewport, in plotter address
103                          units).
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105                   The default value of IYDC is 20.
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107                   When HALFAX is called or when GRIDAL is called with IGPH =
108                   8, 9, or 10, IYDC is the distance from the X axis, rather
109                   than from the minimum viewport coordinate, and the special
110                   values 0 and 1 are equivalent to 20 and -20.
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112       IXOR        (an input expression of type INTEGER) specifies the
113                   orientation of the X-axis labels:
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115                   ·      IXOR = 0 implies the use of horizontal labels.
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117                   ·      IXOR = 1 implies the use of vertical labels.
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119                   The default orientation is horizontal.
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C-BINDING DESCRIPTION

122       The C-binding argument descriptions are the same as the FORTRAN
123       argument descriptions.
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USAGE

126       This routine allows you to set the current value of Gridall parameters.
127       For a complete list of parameters available in this utility, see the
128       gridall_params man page.
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EXAMPLES

131       Use the ncargex command to see the following relevant examples: bnchmk,
132       tgrida, ccpga, ccpmpxy.
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ACCESS

135       To use LABMOD or c_labmod, load the NCAR Graphics libraries ncarg,
136       ncarg_gks, and ncarg_c, preferably in that order.
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SEE ALSO

139       Online: gridall, gridall_params, gacolr, gagetc, gageti, gagetr,
140       gasetc, gaseti, gasetr, grid, gridal, gridl, halfax, perim, periml,
141       tick4, ticks, ncarg_cbind.
142
143       Hardcopy: NCAR Graphics Contouring and Mapping Tutorial
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145       Hardcopy: NCAR Graphics Fundamentals, UNIX Version
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148       Copyright (C) 1987-2009
149       University Corporation for Atmospheric Research
150       The use of this Software is governed by a License Agreement.
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154UNIX                              March 1993                    LABMOD(3NCARG)
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