1WMDRFT(3NCARG) NCAR GRAPHICS WMDRFT(3NCARG)
2
6 WMDRFT - plots weather map front lines.
7
9 CALL WMDRFT (N, X, Y)
10
12 #include <ncarg/gks.h>
13 void c_wmdrft(int n, float *x, float *y)
15
17 N (Integer, Input) - The number of points supplied in the
18 second and third arguments.
19 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.
24 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.
29
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.
42
44 To use WMDRFT or c_wmdrft, load the NCAR Graphics libraries ncarg,
45 ncarg_gks, and ncarg_c, preferably in that order.
46
48 Online: wmap, wmdflt, wmgetc, wmgeti, wmgetr, wmsetc, wmseti, wmsetr,
49 wmap_params
50 Hardcopy: WMAP - A Package for Producing Daily Weather Maps and Plot‐
52 ting Station Model Data
53
55 Copyright (C) 1987-2007
56 University Corporation for Atmospheric Research
57 This documentation is free software; you can redistribute it and/or
59 modify it under the terms of the GNU General Public License as pub‐
60 lished by the Free Software Foundation; either version 2 of the
61 License, or (at your option) any later version.
62 This software is distributed in the hope that it will be useful, but
64 WITHOUT ANY WARRANTY; without even the implied warranty of MER‐
65 CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
66 Public License for more details.
67 You should have received a copy of the GNU General Public License along
69 with this software; if not, write to the Free Software Foundation,
70 Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
71UNIX January 1995 WMDRFT(3NCARG)