NAME¶
WMDRFT - plots weather map front lines.
SYNOPSIS¶
CALL WMDRFT (N, X, Y)
C-BINDING SYNOPSIS¶
#include <ncarg/gks.h>
void c_wmdrft(int n, float *x, float *y)
DESCRIPTION¶
- N
- (Integer, Input) - The number of points supplied in the second and third
arguments.
- X
- (Real, Input) - The X coordinates (specified in world coordinates) of N
points that specify the control points of a spline curve that will be
fitted to represent the requested weather front.
- Y
- (Real, Input) - The Y coordinates (specified in world coordinates) of N
points that specify the control points of a spline curve that will be
fitted to represent the requested weather front.
USAGE¶
Set the values for the appropriate internal parameters before calling WMDRFT to
produce the desired weather front. The internal parameters that control the
appearance of weather fronts are: ALO, ARC, BEG, BET, CFC, CS1, CS2, COL, DWD,
END, FRO, LIN, NBZ, NMS, PAI, REV, SL1, SL2, SLF, STY, SWI, T1C, T2C, WFC, and
WTY. The possible fronts are: warm, warm aloft, cold, cold aloft, stationary,
stationary aloft, occluded, convergence line, instability line, intertropical.
As mentioned above, the points specified in the X and Y arrays serve as
control points for a spline curve that is fitted between the first and last
point. The spline passes through the given points. If the desired front line
is reasonably smooth, then only a few input points need be specified.
ACCESS¶
To use WMDRFT or c_wmdrft, load the NCAR Graphics libraries ncarg, ncarg_gks,
and ncarg_c, preferably in that order.
SEE ALSO¶
Online: wmap, wmdflt, wmgetc, wmgeti, wmgetr, wmsetc, wmseti, wmsetr,
wmap_params
Hardcopy: WMAP - A Package for Producing Daily Weather Maps and Plotting Station
Model Data
COPYRIGHT¶
Copyright (C) 1987-2009
University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.