Section 3: library functions
CLSGKS – Deactivates workstation 1, closes workstation 1, and closes GKS. StatusCLSGKS is somewhat dated. It was primarily used with NCAR GKS-0A when this package only allowed for a single metacode workstation. Now that the NCAR GKS package provides for multiple workstations to be open, it is recommended that standard GKS calls to GDAWK, GCLWK,…
CGM_open, CGM_close, CGM_lseek, CGM_read, CGM_write, CGM_directory, CGM_freeDirectory, CGM_printDirectory, CGM_getInstr, CGM_flushGetInstr, CGM_putInstr, CGM_flushOutputInstr, CGM_initMetaEdit, CGM_termMetaEdit, CGM_copyFrames, CGM_deleteFrames, CGM_mergeFrames CGM_moveFrames, CGM_readFrames, CGM_valid, CGM_writeFile, CGM_writeFrames, CGM_appendFrames – Computer Graphics Metafile operations Syntax#include <cgm_tools.h> Cgm_fd CGM_open(metafile, size, flags, mode) char *metafile; unsigned size; int flags; int mode; int CGM_close(cgm_fd) Cgm_fd cgm_fd; int CGM_lseek(cgm_fd, offset) Cgm_fd cgm_fd; int offset; int…
CFUY – Converts from fractional coordinates to user 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,…
CFUX – Converts from fractional coordinates to user 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,…
c_shseti – set int valued parameters Function Prototypevoid c_shseti(char *, int); Synopsisvoid c_shseti (pnam, ival); Descriptionpnam A string that specifies the name of the parameter to be set. ival An int value to be assigned to the internal parameter specified by pnam.UsageThis routine allows you to set the current value of Shgrid parameters. For a…
c_shgrid – interpolate random data in 3-space using a modified Shepard’s algorithm Function Prototypefloat *c_shgrid(int, float [], float [], float [], float [], int, int, int, float [], float [], float [], int*);Synopsisfloat *c_shgrid (n, x[], y[], z[], f[], nxo, nyo, nzo, xo[], yo[], zo[], ier);Descriptionn (integer,input) The number of input data points (n >…
c_shgetnp – find the nearest points to a specified point in 3-space Function Prototypeint c_shgetnp(float, float, float, int, float *, float *, float *, int, int *);Synopsisint c_shgetnp (px, py, pz, n, x[], y[], z[], iflag, ier );Descriptionpx (float) The X coordinate value for a point P whose nearest neighbor is to be found. py…
c_shgeti – Retrieves the value of an internal parameter of type int. Function Prototypevoid c_shgeti(char *, int *); Synopsisc_shgeti (pnam,ival) Descriptionpnam A string that specifies the name of the parameter to get. The name must appear as the first three characters of the string. ival *ival will be the value currently assigned to the control…
c_nnsetrd – Set double valued parameters Function Prototypevoid c_nnsetrd(char *, double); Synopsisvoid c_nnsetrd(pnam, dval); Descriptionpnam A string that specifies the name of the parameter to be set. dval A double value to be assigned to the internal parameter specified by pnam.UsageThis routine allows you to set the current value of Natgrid parameters. For a complete…
c_nnsetr – Set float valued parameters Function Prototypevoid c_nnsetr(char *, float); Synopsisvoid c_nnsetr (pnam, fval); Descriptionpnam A string that specifies the name of the parameter to be set. fval A float value to be assigned to the internal parameter specified by pnam.UsageThis routine allows you to set the current value of Natgrid parameters. For a…
c_nnseti – set int valued parameters Function Prototypevoid c_nnseti(char *, int); Synopsisvoid c_nnseti (pnam, ival); Descriptionpnam A string that specifies the name of the parameter to be set. ival An int value to be assigned to the internal parameter specified by pnam.UsageThis routine allows you to set the current value of Natgrid parameters. For a…
c_nnsetc – Set char valued parameters Function Prototypevoid c_nnsetc(char *, char *); Synopsisvoid c_nnsetc (pnam, cval); Descriptionpnam A string that specifies the name of the parameter to be set. cval A string that specifies the value to be assigned to the internal parameter specified by pnam.UsageThis routine allows you to set the current value of…
c_nnpnts – interpolate at a single point Function Prototypevoid c_nnpnts(float, float, float *); Synopsisvoid c_nnpntinits (x, y, z); Descriptionx The X coordinate of the point where interpolation is desired. y The Y coordinate of the point where interpolation is desired. z *z is the interpolated functional value at the point (X,Y).UsageThis function is invoked when…
c_nnpntinits – Enter single point mode Function Prototypevoid c_nnpntinits(int, float [], float [], float []); Synopsisvoid c_nnpntinits (npnts, x, y, z); Descriptionnpnts The number of input data points. (npnts > 2) x An array of size npnts containing the X coordinates of the input data points. y An array of size npnts containing the Y…
c_nnpntinitd – Enter single point mode Function Prototypevoid c_nnpntinitd(int, double [], double [], double []); Synopsisvoid c_nnpntinitd (npnts, x, y, z); Descriptionnpnts The number of input data points. (npnts > 3) x An array of size npnts containing the X coordinates of the input data points. y An array of size npnts containing the Y…
c_nnpntendd – exit single point mode Function Prototypevoid c_nnpntendd(); Synopsisvoid c_nnpntendd(); UsageThis function terminates single point mode. It should be called after entering single point mode using c_nnpntinitd and interpolating at individual points with c_nnpntd. AccessTo use c_nnpntendd, load the NCAR Graphics library ngmath. See Alsonatgrid, natgrid_params, c_natgridd, c_nnpntinitd, c_nnpntd. Complete documentation for Natgrid is…
c_nnpntend – exit single point mode Function Prototypevoid c_nnpntend(); Synopsisvoid c_nnpntend (); UsageThis function terminates single point mode. AccessTo use c_nnpntend, load the NCAR Graphics library ngmath. It should be called after entering single point mode using c_nnpntinits and interpolating at individual points with c_nnpnts. See Alsonatgrid, natgrid_params, c_natgrids, c_nnpntinits, c_nnpnts. Complete documentation for Natgrid…
c_nnpntd – interpolate at a single point Function Prototypevoid c_nnpntd(double, double, double *); Synopsisvoid c_nnpntd (x, y, z); Descriptionx The X coordinate of the point where interpolation is desired. y The Y coordinate of the point where interpolation is desired. z *z is the interpolated functional value at the point (X,Y).UsageThis functino is called when…
c_nngetslopes – retrieve the slope at a specified coordinate. Function Prototypevoid c_nngetslopes(int, int, float *, int *); Synopsisc_nngetslopes (row, column, slope, ier); Descriptionrow A subscript indexing the first dimensioned variable in the 2D grid array returned from the most recent call to c_natgrids. column A subscript indexing the second dimensioned variable in the 2D grid…
c_nngetsloped – retrieve a double precision slope at a specified coordinate. Function Prototypevoid c_nngetsloped(int, int, double *, int *); Synopsisc_nngetsloped (row, column, slope, ier); Descriptionrow A subscript indexing the first dimensioned variable in the 2D grid array returned from the most recent call to c_natgridd. column A subscript indexing the second dimensioned variable in the…