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

6       WMDRFT - plots weather map front lines.
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SYNOPSIS

9       CALL WMDRFT (N, X, Y)
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C-BINDING SYNOPSIS

12       #include <ncarg/gks.h>
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14       void c_wmdrft(int n, float *x, float *y)
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DESCRIPTION

17       N           (Integer,  Input)  -  The  number of points supplied in the
18                   second and third arguments.
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20       X           (Real, Input) - The  X  coordinates   (specified  in  world
21                   coordinates) of N points that specify the control points of
22                   a spline  curve  that  will  be  fitted  to  represent  the
23                   requested weather front.
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25       Y           (Real,  Input)  -  The  Y  coordinates  (specified in world
26                   coordinates) of N points that specify the control points of
27                   a  spline  curve  that  will  be  fitted  to  represent the
28                   requested weather front.
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USAGE

31       Set the values for the appropriate internal parameters  before  calling
32       WMDRFT  to  produce the desired weather front.  The internal parameters
33       that control the appearance of weather fronts are: ALO, ARC, BEG,  BET,
34       CFC,  CS1,  CS2, COL, DWD, END, FRO, LIN, NBZ, NMS, PAI, REV, SL1, SL2,
35       SLF, STY, SWI, T1C, T2C, WFC, and WTY.  The possible fronts are:  warm,
36       warm  aloft,  cold, cold aloft, stationary, stationary aloft, occluded,
37       convergence line, instability line, intertropical.  As mentioned above,
38       the  points specified in the X and Y arrays serve as control points for
39       a spline curve that is fitted between the first and  last  point.   The
40       spline  passes  through the given points.  If the desired front line is
41       reasonably smooth, then only a few input points need be specified.
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ACCESS

44       To use WMDRFT or c_wmdrft, load  the  NCAR  Graphics  libraries  ncarg,
45       ncarg_gks, and ncarg_c, preferably in that order.
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SEE ALSO

48       Online:  wmap,  wmdflt, wmgetc, wmgeti, wmgetr, wmsetc, wmseti, wmsetr,
49       wmap_params
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51       Hardcopy: WMAP - A Package for Producing Daily Weather Maps  and  Plot‐
52       ting Station Model Data
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55       Copyright (C) 1987-2009
56       University Corporation for Atmospheric Research
57       The use of this Software is governed by a License Agreement.
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61UNIX                             January 1995                   WMDRFT(3NCARG)
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