Section 3: library functions
LINE – draws a line from the point (X1,Y1) to the point (X2,Y2). The "pen" (for subsequent calls to FRSTPT, VECTOR, PLOTIF, and PLOTIT) is left at (X2,Y2). SynopsisCALL LINE (X1,Y1,X2,Y2) C-Binding Synopsis#include <ncarg/ncargC.h> void c_line (float x1, float y1, float x2, float y2) DescriptionX1 (an input expression of type REAL) defines the X user…
LBSETR – Gives a real value to an internal parameter of Labelbar. SynopsisCALL LBSETR (PNAM, RVAL) C-Binding Synopsis#include <ncarg/ncargC.h> void c_lbsetr (char *pnam, float rval) DescriptionPNAM (an input constant or variable of type CHARACTER) is a string three or more characters in length, beginning with one of the six character strings ‘CBL’, ‘CFL’, ‘CLB’, ‘WBL’,…
LBSETI – Gives an integer value to an internal parameter of Labelbar. SynopsisCALL LBSETI (PNAM, IVAL) C-Binding Synopsis#include <ncarg/ncargC.h> void c_lbseti (char *pnam, int ival) DescriptionPNAM (an input constant or variable of type CHARACTER) is a string three or more characters in length, beginning with one of the six character strings ‘CBL’, ‘CFL’, ‘CLB’, ‘WBL’,…
LBLBAR – Draws a complete label bar. Synopsis CALL LBLBAR (IHOV, XLEB, XREB, YBEB, YTEB, NBOX, WSFB, + HSFB, LFIN, IFTP, LLBS, NLBS, LBAB) C-Binding Synopsis#include <ncarg/ncargC.h> void c_lblbar (int ihov, float xleb, float xreb, float ybeb, float yteb, int nbox, float wsfb, float hsfb, int *lfin, int iftp, char *llbs[], int nlbs, int lbab) DescriptionIHOV (an…
LBGETR – Retrieves the real value of an internal parameter of Labelbar. SynopsisCALL LBGETR (PNAM, RVAL) C-Binding Synopsis#include <ncarg/ncargC.h> void c_lbgetr (char *pnam, float *rval) DescriptionPNAM (an input constant or variable of type CHARACTER) is a string three or more characters in length, beginning with one of the six character strings ‘CBL’, ‘CFL’, ‘CLB’, ‘WBL’,…
LBGETI – Retrieves the integer value of an internal parameter of Labelbar. SynopsisCALL LBGETI (PNAM, IVAL) C-Binding Synopsis#include <ncarg/ncargC.h> void c_lbgeti (char *pnam, int *ival) DescriptionPNAM (an input constant or variable of type CHARACTER) is a string three or more characters in length, beginning with one of the six character strings ‘CBL’, ‘CFL’, ‘CLB’, ‘WBL’,…
LBFILL – A routine that is called by LBLBAR (when the argument IFTP is non-zero) to fill portions of the bar. The default version of this routine does color fill by calling GSFACI and GFA. A user-written version may be supplied to do a different kind of fill. SynopsisCALL LBFILL (IFTP, XCRA, YCRA, NCRA, INDX)…
LASTD – Terminates a sequence of calls to draw a curve (a call to FRSTD followed by one or more calls to VECTD). SynopsisCALL LASTD C-Binding Synopsis#include <ncarg/ncargC.h> void c_lastd() UsageA sequence of calls to draw a curve (a call to FRSTD followed by one or more calls to VECTD) may be followed by a…
LABMOD – Presets parameters controlling the appearance of labels drawn by GRIDAL, GRIDL,… et al. LABMOD itself does no plotting and, in order to have any effect, must be called prior to the background-drawing routines for which it is presetting parameters. Synopsis CALL LABMOD (FMTX, FMTY, NUMX, NUMY, ISZX, ISZY, IXDC, + IYDC, IXOR) C-Binding Synopsis#include <ncarg/ncargC.h>…
Labelbar_params – This document briefly describes all Labelbar internal parameters. DescriptionLabelbar has six internal parameters, each of which affects the behavior of LBLBAR in a particular way. The current value of one of these parameters may be retrieved by calling either LBGETI or LBGETR and the value of one of them may be reset by…
Labelbar – Creates a labeled, filled, rectangular bar to serve as a key for a filled plot. SynopsisLBLBAR – Produces a complete label bar. LBGETI – Retrieves current integer parameter values. LBGETR – Retrieves current real parameter values. LBSETI – Sets integer parameter values. LBSETR – Sets real parameter values. C-Binding Synopsisc_lblbar c_lbgeti c_lbgetr c_lbfill…
KURVPD – nterpolation and derivatives for closed parametric curves SynopsisCALL KURVPD (T, XS, YS, XST, YST, XSTT, YSTT, N, X, Y, XP, YP, S, SIGMA) This subroutine behaves like KURVP2 except that in addition it returns the first and second derivatives of the component functions in the parameterization. The interval [0.,1.] maps onto a closed…
KURVP2 – does interpolation for closed parametric curves SynopsisCALL KURVP2 (T, XS, YS, N, X, Y, XP, YP, S, SIGMA) The interpolated curve is parameterized by mapping points in the interval [0.,1.] onto an interpolated closed curve. The resulting curve has a parametric representation both of whose components are splines under tension and functions of…
KURVP1 – calculate values for KURVP2 usage SynopsisCALL KURVP1 (N, X, Y, XP, YP, TEMP, S, SIGMA, IER) This subroutine calculates certain values that are used by KURVP2 in order to compute an interpolatory spline under tension through a sequence of points in the plane that form a closed curve. The actual computation of the…
KURVD – interpolation and derivatives for parametric curves SynopsisCALL KURVD (T, XS, YS, XST, YST, XSTT, YSTT, N, X, Y, XP, YP, S, SIGMA) This subroutine behaves like KURV2 except that in addition it returns the first and second derivatives of the component functions in the parameterization. The interval [0.,1.] maps onto a curve in…
KURV2 – does interpolation for parametric curves SynopsisCALL KURV2 (T, XS, YS, N, X, Y, XP, YP, S, SIGMA) The interpolated curve is parameterized by mapping points in the interval [0.,1.] onto the interpolated curve. The resulting curve has a parametric representation both of whose components are splines under tension and functions of the polygonal…
KURV1 – calculate values for KURV2 usage SynopsisCALL KURV1 (N, X, Y, SLP1, SLPN, ISLPSW, XP, YP, TEMP, S, SIGMA, IER) This subroutine calculates certain values that are used by KURV2 in order to compute an interpolatory spline under tension through a sequence of points in the plane. The actual computation of the interpolated values…
KUPY – Converts from user coordinates to plotter address unit coordinates. Namespps_converters – A set of functions, each of which transforms a coordinate from one of the NCAR Graphics coordinate systems to another. The complete list of functions is as follows: CFUX, CFUY, CMFX, CMFY, CMUX, CMUY, CPFX, CPFY, CPUX, CPUY, CUFX, CUFY, KFMX, KFMY,…
KUPX – Converts from user coordinates to plotter address unit coordinates. Namespps_converters – A set of functions, each of which transforms a coordinate from one of the NCAR Graphics coordinate systems to another. The complete list of functions is as follows: CFUX, CFUY, CMFX, CMFY, CMUX, CMUY, CPFX, CPFY, CPUX, CPUY, CUFX, CUFY, KFMX, KFMY,…
KUMY – Converts from user coordinates to metacode coordinates. Namespps_converters – A set of functions, each of which transforms a coordinate from one of the NCAR Graphics coordinate systems to another. The complete list of functions is as follows: CFUX, CFUY, CMFX, CMFY, CMUX, CMUY, CPFX, CPFY, CPUX, CPUY, CUFX, CUFY, KFMX, KFMY, KFPX, KFPY,…