Section 3: library functions
WMDFLT – returns all values of internal parameters in the Wmap package to their default values. Synopsis CALL WMDFLT () C-Binding Synopsis #include <ncarg/gks.h> void c_wmdflt() Usage All values of all internal parameters are returned to their default values. See the man page for wmap_params for default values. Access To use WMDFLT or c_wmdflt, load…
WMBARB – plots wind barbs. Synopsis CALL WMBARB (X,Y,U,V) C-Binding Synopsis #include <ncarg/gks.h> void c_wmbarb(float x, float y, float u, float v) Description X (Real, Input) – An X coordinate (specified in world coordinates) of a point that specifies the position of the base of a wind barb. Y (Real, Input) – A Y coordinate…
Wmap_params – This document briefly describes all the internal parameters of Wmap. Description The following shows all of the internal parameters that affect the behavior of Wmap. Each entry includes the name of a parameter, its Fortran type, its default value, and a short description of the parameter. ‘ALO’ – Integer – 0 A Flag…
Wmap – A Package for Producing Daily Weather Maps and Plotting Station Model Data Synopsis WMBARB – Plots wind barbs. WMDFLT – Returns all values of all internal parameters to their defaults. WMDRFT – Draws weather fronts. WMDRRG – Draws weather regions (indicating "snow", "rain", etc.) or regions of solid color indicating temperature regions. WMGETC…
VVUMXY – The user may modify this routine to define a custom mapping of vectors from a data coordinate system aligned with the natural boundaries of the vector field to the uniform normalized device coordinate (NDC) system suitable for generating a plot on an output device. It has same parameters as the internal Vectors routine,…
VVUDMV – This routine is the user-definable external subroutine used to draw masked vectors. The default version of the routine draws any polyline all of whose area identifiers are greater than or equal to zero. Synopsis CALL VVUDMV (XCS,YCS,NCS,IAI,IAG,NAI) Description XCS (REAL array, assumed size NCS, input): Array of X coordinates of the points defining…
VVSETR – Sets the value of a Vectors parameter of type REAL. Synopsis CALL VVSETR (CNM,RVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_vvsetr(char *cnm, float rvl) Description CNM (CHARACTER, input) is the name of a parameter to be given a real value. Only the first three characters of CNM are examined. The three characters may either…
VVSETI – Sets the value of a Vectors parameter of type INTEGER. Synopsis CALL VVSETI (CNM,IVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_vvseti(char *cnm, int ivl) Description CNM (CHARACTER, input) is the name of a parameter to be given an integer value. Only the first three characters of CNM are examined. The three characters may either…
VVSETC – Sets the value of a Vectors parameter of type CHARACTER. Synopsis CALL VVSETC (CNM,CVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_vvsetc (char *cnm, char *cvl) Description CNM (CHARACTER, input) is the name of a parameter to be given a character value. Only the first three characters of CNM are examined. The three characters may…
VVRSET – Resets all parameters to their initial default values. Synopsis CALL VVRSET C-Binding Synopsis #include <ncarg/ncargC.h> void c_vvrset( void ) Description None. Usage This routine resets all Vectors parameters to their default values. For a complete list of the parameters affected and their default values, see the vectors_params man page. Access To use VVRSET…
VVINIT – Performs initialization tasks required before VVECTR may be called to plot a vector field, including copying array size information into internal common block variables, establishing coordinate system mappings and boundaries, determining the maximum and minimum vector magnitudes and scalar array values, and, if required, setting up the color threshold value array. Synopsis CALL…
VVGETR – Gets the current value of a Vectors parameter of type REAL. Synopsis CALL VVGETR (CNM,RVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_vvgetr(char *cnm, float *rvl) Description CNM (CHARACTER, input) is the name of a parameter whose real value is to be retrieved. Only the first three characters of CNM are examined. The three characters…
VVGETI – Gets the current value of a Vectors parameter of type INTEGER. Synopsis CALL VVGETI (CNM,IVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_vvgeti(char *cnm, int *ivl) Description CNM (CHARACTER, input) is the name of a parameter whose integer value is to be retrieved. Only the first three characters of CNM are examined. The three characters…
VVGETC – Gets the current value of a Vectors parameter of type CHARACTER. Synopsis CALL VVGETC (CNM,CVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_vvgetc(char *cnm, char *cvl, int len) Description CNM (CHARACTER, input) is the name of a parameter whose character value is to be retrieved. Only the first three characters of CNM are examined. The…
VVECTR – Manages the coordinate system mapping, color setting, auxiliary text output, and drawing of the vector field plot, according to the specifications established by the parameter setting routines and the initialization routine, VVINIT. Synopsis CALL VVECTR (U,V,P,IAM,VVUDMV,WRK) C-Binding Synopsis #include <ncarg/ncargC.h> void c_vvectr(float *u, float *v, float *p, int *iam, int (*vvudmv_)(float *xcs, float *ycs, int *ncs, int *iai,…
VELVEC – A older version of the Vectors utility, now a front-end to VELVCT. It is identical to the VELVCT call except that there is no LENGTH parameter to allow adjustment of the realized length of the maximum vector magnitude. Synopsis VELVEC (U,LU,V,LV,M,N,FLO,HI,NSET,ISPV,SPV) Status VELVEC is obsolete, and is supported only to provide compatibility with…
VELVCT – Plots a vector field, given two 2-dimensional vector component arrays, U and V. You may control certain characteristics of the plot by adjusting the values given to the input arguments. Other less frequently changed characteristics may be affected by modifying VELDAT, the BLOCK DATA routine that initializes members of the common blocks VEC1…
Vectors_params – This document briefly describes all Vectors internal parameters. Description Parameter descriptions follow, in alphabetical order. Each description begins with a line giving the three-character mnemonic name of the parameter, the phrase for which the mnemonic stands, the intrinsic type of the parameter, and an indication of whether or not it is an array….
Vectors – Utility for creating a vector field plot given two arrays containing the vector components on a uniform grid. In addition, the user may pass in another array of scalar data defined over the same grid space independent of but presumably related in some fashion to the vector data. The utility will then color…
VECTOR – generates a "pen-down" move to a specified point in the user coordinate system. VECTOR is used in conjunction with the routine FRSTPT to draw lines. Synopsis CALL VECTOR (PX,PY) C-Binding Synopsis #include <ncarg/ncargC.h> void c_vector (float px, float py) Description PX (an input expression of type REAL) defines the X user coordinate. PY…