Section 3: library functions
Draws a map with a single call. An implementation of the routine from which EZMAP grew. Synopsis CALL SUPMAP (JPRJ, PLAT, PLON, ROTA, PLM1, PLM2, PLM3, + PLM4, JLTS, JGRD, IOUT, IDOT, IERR) C-Binding Synopsis #include <ncarg/ncargC.h> void c_supmap (int jprj, float plat, float plon, float rota, float *plm1, float *plm2, float *plm3, float *plm4, int…
MAPTRN – Projects points. SUPCON is an alternate name for the routine MAPTRN. Synopsis CALL MAPTRN (RLAT, RLON, UVAL, VVAL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_maptrn (float rlat, float rlon, float *uval, float *vval) Description RLAT and RLON (input expressions, of type REAL) are the latitude and longitude, respectively, of a point on the globe….
STUMXY – Maps a single point on the streamline from data to user coordinate space. Synopsis CALL STUMXY(XDA,YDA,XUS,YUS,IST) Description XDA (REAL, input): The X coordinate of a point on the streamline in data coordinate space. YDA (REAL, input): The Y coordinate of a point on the streamline in data coordinate space. XUS (REAL, output): The…
STUMTA – Given the coordinates of a point on the streamline in data, user, and NDC space, and the interpolated, normalized components of the vector at the point relative to data coordinate space, the user-modifiable routine STUMTA finds the directional angle of the streamline relative to NDC space at the point. Synopsis CALL STUMTA (XDA,YDA,XUS,YUS,XND,YND,DU,DV,TA,IST)…
STUMSL – This routine is the user-definable external subroutine used to draw masked streamlines. The default version of the routine draws any polyline all of whose area identifiers are greater than or equal to zero. Synopsis CALL STUMSL (XCS,YCS,NCS,IAI,IAG,NAI) Description XCS (REAL array, assumed size NCS, input): Array of X coordinates of the points defining…
STUIXY – Inversely maps a single point on the streamline from user to data coordinate space. Synopsis CALL STUIXY (XUS,YUS,XDA,YDA,IST) Description XUS (REAL, input): The X coordinate of a point in the user coordinate system. YUS (REAL, input): The Y coordinate of a point in the user coordinate system. XDA (REAL, output): The X coordinate…
STSETR – Sets the value of an internal parameter of type REAL. Synopsis CALL STSETR (CNM,RVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_stsetr(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…
STSETI – Sets the value of an internal parameter of type INTEGER. Synopsis CALL STSETI (CNM,IVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_stseti(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 must either…
STSETC – Sets the value of a Streamlines parameter of type CHARACTER. Synopsis CALL STSETC (CNM,CVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_stsetc (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…
STRSET – Resets all parameters to their initial default values. Synopsis CALL STRSET C-Binding Synopsis #include <ncarg/ncargC.h> void c_strset(void) Description None. C-Binding Description None. Usage This routine resets all Streamlines 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…
STRMLN – Plots a streamline representation of field flow data, 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. In addition, depending on the value given to the compatibility parameter, CPM, you may set other options by calling…
Streamlines_params – This document briefly describes all Streamlines 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, and the intrinsic type of the parameter. AGD – Arrow Placement Grid Increment – Integer This parameter…
Streamlines – Utility for plotting a streamline representation of field flow data given two arrays containing the vector field components on a uniform grid. Synopsis The following two calls are the minimum required to create a streamline field flow plot using the current interface: • STINIT – Performs initialization tasks required before STREAM may be…
STREAM – Plots a streamline representation of field flow data, based on conditions established by STINIT and the current values of a set of user-modifiable internal parameters associated with the Streamlines utility. Synopsis CALL STREAM (U,V,P,IAM,STUMSL,WRK) C-Binding Synopsis #include <ncarg/ncargC.h> void c_stream(float *u, float *v, float *p, int *iam, int (*stumsl_)( float *xcs, float *ycs, int *ncs, int *iai, int *iag, int *nai), …
STITLE – Creates scrolled movie or video titles. It receives all input through the argument list. Utility This routine is part of the Scrolled_title utility in NCAR Graphics. To see the overview man page for this utility, type "man scrolled_title". Synopsis CALL STITLE (CRDS,NCDS,IYST,IYND,TMST,TMMV,TMND,MTST) C-Binding Synopsis #include <ncarg/ncargC.h> void c_stitle (char *crds[], int ncds, int iyst,…
STINIT – Performs initialization tasks required before STREAM may be called to create a streamline field flow plot. Information about the input data arrays is copied into internal common block variables and the coordinate system mappings and boundaries are established. Synopsis CALL STINIT (U,LU,V,LV,P,LP,M,N,WRK,LW) C-Binding Synopsis #include <ncarg/ncargC.h> void c_stinit(float *u, int lu, float *v,…
STGETR – Gets the current value of an internal parameter of type REAL. Synopsis CALL STGETR (CNM,RVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_stgetr(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…
STGETI – Gets the current value of an internal parameter of type INTEGER. Synopsis CALL STGETI (CNM,IVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_stgeti(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…
STGETC – Gets the current value of a Streamlines parameter of type CHARACTER. Synopsis CALL STGETC (CNM,CVL) C-Binding Synopsis #include <ncarg/ncargC.h> void c_stgetc(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…
SRFACE – Draws a perspective picture of a function of two variables with hidden lines removed. The function is approximated by a two-dimensional array of heights. Synopsis CALL SRFACE (X,Y,Z,M,MX,NX,NY,S,STEREO) C-Binding Synopsis #include <ncarg/ncargC.h> void c_srface (float *x, float *y, float *z, int *m, int mx, int nx, int ny, float s[6], float stereo) Description…