Section 3: library functions
NGDOTS – Draws filled circular dots at coordinate positions (X(I),Y(I),I=1,NUM) at size SIZE with color given by the color index ICOLOR. SynopsisCALL NGDOTS(X,Y,NUM,SIZE,ICOLOR) C-Binding Synopsis#include <ncarg/ncargC.h> void c_ngdots(float *x, float *y, int num, float size, int icolor) DescriptionX (an input array of type REAL) defining the X world coordinates where a sequence of circular filled…
NGCKOP – a function to check if a specified GKS workstation is open. SynopsisINTEGER FUNCTION NGCKOP(WKID) C-Binding Synopsis#include <ncarg/ncargC.h> int c_ngckop(int wkid) DescriptionWKID (an input variable of type INTEGER) specifying a GKS workstation identifier.C-Binding DescriptionThe C binding argument descriptions are the same as the FORTRAN argument descriptions. UsageThe function returns a "1" if the workstation…
NERRO – Referenced by a user to obtain the current value of the internal error flag of SETER. SynopsisNERR=NERRO(NERRF) C-Binding Synopsis#include <ncarg/ncargC.h> c_nerro(int *nerrf) DescriptionThe FORTRAN expression "NERRO(NERRF)" has the value of the internal error flag of SETER. If its value is non-zero, this indicates that a prior recoverable error occurred and has not yet…
NCAR Graphics GKS C-binding – Description of how to use the NCAR Graphics GKS C-binding. Synopsis This section only briefly describes how to use the NCAR Graphics GKS C-binding. If you intend to use the GKS C-bindings heavily, you may want to get a copy of the American National Standard’s "Computer Graphics – Graphical Kernel…
NCAR Graphics GKS – Environment variables SynopsisA collection of environment variables allows you to control certain aspects of NCAR Graphics’ GKS behaviour. NCARG_GKS_OUTPUT allows you to specify what file or process CGM output is directed to. NCARG_GKS_PSOUTPUT allows you to specify what file any PostScript output from NCAR GKS is directed to (stdout is allowed)….
NCAR Graphics C-binding – Description of how to use the NCAR Graphics C-binding. SynopsisThe NCAR Graphics C-binding consists of a collection of C routines that allow you to call NCAR Graphics Fortran routines from a C program without having to worry about the C to Fortran interface yourself. For detailed information about the C-binding for…
NATGRIDS – primary single precision Fortran entry for natural neighbor gridding SynopsisCALL NATGRIDS (NPNTS, X, Y, Z, NUMXOUT, NUMYOUT, XI, YI, ZI, IER) Description NPNTS (Integer, Input) – The number of input data points. (NPNTS > 3). X (Real, Input) – An array containing the X coordinates of the input data points. Y (Real, Input)…
NATGRIDD – primary double precision Fortran entry for natural neighbor gridding SynopsisCALL NATGRIDD (NPNTS, X, Y, Z, NUMXOUT, NUMYOUT, XI, YI, ZI, IER) Description NPNTS (Integer, Input) – The number of input data points. (NPNTS > 3). X (Double precision, Input) – An array containing the X coordinates of the input data points. Y (Double…
natgrid_params – This document briefly describes all the internal parameters of Natgrid. Description Each entry below includes the name of a parameter, its Fortran type (use the obvious equivalents for C), its default value, and a short description of the parameter. ‘ADF’ – Integer – 0 Flags if the data file of algorithmic information for…
natgrid_errors – This document briefly describes all the errors reported from Natgrid. Description Each entry below includes the error number and its meaning. 1 Insufficient data in gridded region to triangulate. 2 Duplicate input data coordinates are not allowed. 3 Unable to open file for writing algorithmic data. 4 WARNING: The ratio of vertical to…
Natgrid is a package for gridding 2D randomly-spaced data using a natural neighbor algorithm. Single precison and double precision interfaces exist in both Fortran and C. SynopsisFORTRAN single precision ———————— c_natgridd – primary function for gridding. c_nnseti – set int parameter values. c_nngeti – retrieve values for int parameters. c_nnsetrd – set double parameter values….
MXMY – Retrieves the current pen position in the Plotter Address Unit (PAU) coordinate system. StatusPlotter Address Units (PAUs) are not being used in new NCAR Graphics routines; thus, MXMY is considered an obsolete routine. The current recognized coordinate systems are GKS world coordinates, GKS normalized device coordinates, NCAR Graphics fractional coordinates, and NCAR Graphics…
MAPSTR – Sets the values of certain EZMAP parameters of type REAL. MPSETR is an alternate name for the routine MAPSTR. SynopsisCALL MAPSTR (PNAM,RVAL) C-Binding Synopsis#include <ncarg/ncargC.h> void c_mapstr (char *pnam, float rval) DescriptionPNAM (an input expression, of type CHARACTER*2) specifies the name of an internal parameter whose value is to be set. Only the…
MAPSTL – Sets the values of certain EZMAP parameters of type LOGICAL. MPSETL is an alternate name for the routine MAPSTL. SynopsisCALL MAPSTL (PNAM,LVAL) C-Binding Synopsis#include <ncarg/ncargC.h> void c_mapstl (char *pnam, int lval) DescriptionPNAM (an input expression, of type CHARACTER*2) specifies the name of an internal parameter whose value is to be set. Only the…
MAPSTI – Sets the values of certain EZMAP parameters of type INTEGER. MPSETI is an alternate name for the routine MAPSTI. SynopsisCALL MAPSTI (PNAM,IVAL) C-Binding Synopsis#include <ncarg/ncargC.h> void c_mapsti (char *pnam, int ival) DescriptionPNAM (an input expression, of type CHARACTER*2) specifies the name of an internal parameter whose value is to be set. Only the…
MAPSTC – Sets the values of certain EZMAP parameters of type CHARACTER. MPSETC is an alternate name for the routine MAPSTC. SynopsisCALL MAPSTC (PNAM,CVAL) C-Binding Synopsis#include <ncarg/ncargC.h> void c_mapstc(char *pnam, char *cval) DescriptionPNAM (an input expression, of type CHARACTER*2) specifies the name of an internal parameter whose value is to be set. Only the first…
MPRSET – Reset the internal state of EZMAP/EZMAPA to the default. SynopsisCALL MPRSET C-Binding Synopsis#include <ncarg/ncargC.h> void c_mprset() DescriptionMPRSET has no arguments. UsageMPRSET – Calling this routine resets the internal parameters of EZMAP/EZMAPA to the default state and recalls the routine MAPINT to initialize the package. Examples No example is available for MPRSET. AccessTo use…
MPNAME – Given the area identifier of one of the areas defined by whatever database was last read by one of the EZMAPB routines MPLNAM, MPLNDM, MPLNDR, and MPLNRI, this function returns the name of the area. SynopsisCHARACTER*64 MPNAME,NAME NAME=MPNAME(IAIN) C-Binding Synopsis#include <ncarg/ncargC.h> char *c_mpname (int iain) DescriptionIAIN is an input expression of type INTEGER,…
MPLNRI – Reads information from a specified EZMAP database. SynopsisCALL MPLNRI (FLNM) C-Binding Synopsis#include <ncarg/ncargC.h> void c_mplnri (char *flnm) Description FLNM (an input expression of type CHARACTER) specifies the name of the database to be used. MPLNRI will first look for the files of the specified database in the current working directory; if the files…
MPLNDR – Reads a specified EZMAP database and draws boundary lines from it. SynopsisCALL MPLNDR (FLNM,ILVL) C-Binding Synopsis#include <ncarg/ncargC.h> void c_mplndr (char *flnm, int ilvl) Description FLNM (an input expression of type CHARACTER) specifies the name of the database to be used. MPLNDR will first look for the files of the specified database in the…