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greg |
1.1 |
#ifndef lint |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* mgvars.c - routines dealing with graph variables. |
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* |
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* 6/23/86 |
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* |
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* Greg Ward Larson |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <math.h> |
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#include <ctype.h> |
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#include "mgvars.h" |
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#define MAXLINE 512 |
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#define isid(c) (isalnum(c) || (c) == '_' || (c) == '.') |
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#define isnum(c) (isdigit(c)||(c)=='-'||(c)=='+'||(c)=='.'||(c)=='e'||(c)=='E') |
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char *findfile(), *emalloc(), *ecalloc(), *erealloc(), *savestr(), *strcpy(); |
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FILE *fopen(), *popen(); |
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extern char *progname, *libpath[]; |
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#ifdef DCL_ATOF |
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double atof(); |
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#endif |
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IVAR *ivhead = NULL; /* intermediate variables */ |
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VARIABLE gparam[NVARS] = { /* standard variables */ |
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{ "fthick", REAL, "frame thickness" }, |
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{ "grid", REAL, "grid on?" }, |
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{ "legend", STRING, "legend title" }, |
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{ "othick", REAL, "origin thickness" }, |
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{ "period", REAL, "period of polar plot" }, |
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{ "subtitle", STRING }, |
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{ "symfile", STRING, "symbol file" }, |
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{ "tstyle", REAL, "tick mark style" }, |
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{ "title", STRING }, |
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{ "xlabel", STRING }, |
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{ "xmap", FUNCTION, "x axis mapping function" }, |
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{ "xmax", REAL }, |
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{ "xmin", REAL }, |
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{ "xstep", REAL }, |
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{ "ylabel", STRING }, |
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{ "ymap", FUNCTION, "y axis mapping function" }, |
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{ "ymax", REAL }, |
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{ "ymin", REAL }, |
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{ "ystep", REAL }, |
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}; |
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VARIABLE cparam[MAXCUR][NCVARS] = { /* curve variables */ |
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{ |
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{ "A", FUNCTION, "function for curve A" }, |
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{ "Acolor", REAL, "color for A" }, |
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{ "Adata", DATA, "point data for A" }, |
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{ "Alabel", STRING }, |
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{ "Alintype", REAL, "line type for A" }, |
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{ "Anpoints", REAL, "number of points for A" }, |
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{ "Asymsize", REAL, "symbol size for A" }, |
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{ "Asymtype", STRING, "symbol type for A" }, |
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{ "Athick", REAL, "line thickness for A" }, |
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}, { |
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{ "B", FUNCTION, "function for curve B" }, |
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{ "Bcolor", REAL, "color for B" }, |
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{ "Bdata", DATA, "point data for B" }, |
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{ "Blabel", STRING }, |
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{ "Blintype", REAL, "line type for B" }, |
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{ "Bnpoints", REAL, "number of points for B" }, |
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{ "Bsymsize", REAL, "symbol size for B" }, |
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{ "Bsymtype", STRING, "symbol type for B" }, |
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{ "Bthick", REAL, "line thickness for B" }, |
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}, { |
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{ "C", FUNCTION, "function for curve C" }, |
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{ "Ccolor", REAL, "color for C" }, |
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{ "Cdata", DATA, "point data for C" }, |
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{ "Clabel", STRING }, |
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{ "Clintype", REAL, "line type for C" }, |
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{ "Cnpoints", REAL, "number of points for C" }, |
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{ "Csymsize", REAL, "symbol size for C" }, |
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{ "Csymtype", STRING, "symbol type for C" }, |
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{ "Cthick", REAL, "line thickness for C" }, |
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}, { |
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{ "D", FUNCTION, "function for curve D" }, |
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{ "Dcolor", REAL, "color for D" }, |
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{ "Ddata", DATA, "point data for D" }, |
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{ "Dlabel", STRING }, |
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{ "Dlintype", REAL, "line type for D" }, |
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{ "Dnpoints", REAL, "number of points for D" }, |
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{ "Dsymsize", REAL, "symbol size for D" }, |
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{ "Dsymtype", STRING, "symbol type for D" }, |
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{ "Dthick", REAL, "line thickness for D" }, |
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}, { |
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{ "E", FUNCTION, "function for curve E" }, |
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{ "Ecolor", REAL, "color for E" }, |
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{ "Edata", DATA, "point data for E" }, |
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{ "Elabel", STRING }, |
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{ "Elintype", REAL, "line type for E" }, |
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{ "Enpoints", REAL, "number of points for E" }, |
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{ "Esymsize", REAL, "symbol size for E" }, |
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{ "Esymtype", STRING, "symbol type for E" }, |
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{ "Ethick", REAL, "line thickness for E" }, |
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}, { |
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{ "F", FUNCTION, "function for curve F" }, |
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{ "Fcolor", REAL, "color for F" }, |
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{ "Fdata", DATA, "point data for F" }, |
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{ "Flabel", STRING }, |
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{ "Flintype", REAL, "line type for F" }, |
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{ "Fnpoints", REAL, "number of points for F" }, |
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{ "Fsymsize", REAL, "symbol size for F" }, |
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{ "Fsymtype", STRING, "symbol type for F" }, |
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{ "Fthick", REAL, "line thickness for F" }, |
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}, { |
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{ "G", FUNCTION, "function for curve G" }, |
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{ "Gcolor", REAL, "color for G" }, |
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{ "Gdata", DATA, "point data for G" }, |
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{ "Glabel", STRING }, |
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{ "Glintype", REAL, "line type for G" }, |
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{ "Gnpoints", REAL, "number of points for G" }, |
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{ "Gsymsize", REAL, "symbol size for G" }, |
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{ "Gsymtype", STRING, "symbol type for G" }, |
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{ "Gthick", REAL, "line thickness for G" }, |
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}, { |
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{ "H", FUNCTION, "function for curve H" }, |
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{ "Hcolor", REAL, "color for H" }, |
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{ "Hdata", DATA, "point data for H" }, |
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{ "Hlabel", STRING }, |
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{ "Hlintype", REAL, "line type for H" }, |
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{ "Hnpoints", REAL, "number of points for H" }, |
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{ "Hsymsize", REAL, "symbol size for H" }, |
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{ "Hsymtype", STRING, "symbol type for H" }, |
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{ "Hthick", REAL, "line thickness for H" }, |
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}, |
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}; |
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mgclearall() /* clear all variable settings */ |
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{ |
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int j; |
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register IVAR *iv; |
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register int i; |
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for (iv = ivhead; iv != NULL; iv = iv->next) { |
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dremove(iv->name); |
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freestr(iv->name); |
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freestr(iv->dfn); |
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efree((char *)iv); |
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} |
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ivhead = NULL; |
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for (i = 0; i < NVARS; i++) |
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if (gparam[i].flags & DEFINED) |
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undefine(&gparam[i]); |
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for (j = 0; j < MAXCUR; j++) |
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for (i = 0; i < NCVARS; i++) |
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if (cparam[j][i].flags & DEFINED) |
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undefine(&cparam[j][i]); |
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} |
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mgload(file) /* load a file */ |
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char *file; |
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{ |
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FILE *fp; |
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char sbuf[MAXLINE], *fgets(); |
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int inquote; |
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register char *cp, *cp2; |
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if (file == NULL) { |
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fp = stdin; |
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file = "<stdin>"; |
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} else if ((fp = fopen(file, "r")) == NULL) { |
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fprintf(stderr, "%s: Cannot open: %s\n", progname, file); |
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quit(1); |
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} |
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while (fgets(sbuf+1, sizeof(sbuf)-1, fp) != NULL) { |
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inquote = 0; |
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cp2 = sbuf; |
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for (cp = sbuf+1; *cp; cp++) /* condition the input line */ |
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switch (*cp) { |
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case '#': |
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if (!inquote) { |
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cp[0] = '\n'; |
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cp[1] = '\0'; |
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break; |
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} |
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*cp2++ = *cp; |
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break; |
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case '"': |
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inquote = !inquote; |
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break; |
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case '\\': |
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if (!cp[1]) |
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break; |
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if (cp[1] == '\n') { |
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cp[0] = '\0'; |
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fgets(cp, sizeof(sbuf)-(cp-sbuf), fp); |
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cp--; |
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break; |
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} |
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*cp2++ = *++cp; |
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break; |
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case ' ': |
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case '\t': |
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case '\n': |
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if (!inquote) |
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break; |
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*cp2++ = *cp; |
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break; |
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default: |
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*cp2++ = *cp; |
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break; |
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} |
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*cp2 = '\0'; |
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if (inquote) { |
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fputs(sbuf, stderr); |
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fprintf(stderr, "%s: %s: Missing quote\n", |
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progname, file); |
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quit(1); |
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} |
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if (sbuf[0]) |
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setmgvar(file, fp, sbuf); |
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} |
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if (fp != stdin) |
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fclose(fp); |
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} |
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mgsave(file) /* save our variables */ |
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char *file; |
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{ |
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FILE *fp; |
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int j; |
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register IVAR *iv; |
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register int i; |
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if (file == NULL) |
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fp = stdout; |
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else if ((fp = fopen(file, "w")) == NULL) { |
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fprintf(stderr, "%s: Cannot write: %s\n", progname, file); |
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quit(1); |
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} |
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for (iv = ivhead; iv != NULL; iv = iv->next) |
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fprintf(fp, "%s\n", iv->dfn); |
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for (i = 0; i < NVARS; i++) |
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if (gparam[i].flags & DEFINED) |
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mgprint(&gparam[i], fp); |
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for (j = 0; j < MAXCUR; j++) |
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for (i = 0; i < NCVARS; i++) |
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if (cparam[j][i].flags & DEFINED) |
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mgprint(&cparam[j][i], fp); |
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if (fp != stdout) |
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fclose(fp); |
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} |
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setmgvar(fname, fp, string) /* set a variable */ |
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char *fname; |
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FILE *fp; |
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char *string; |
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{ |
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char name[128]; |
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FILE *fp2; |
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register int i; |
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register char *s; |
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register VARIABLE *vp; |
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if (!strncmp(string, "include=", 8)) { /* include file */ |
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if ((s = findfile(string+8, libpath)) == NULL) { |
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fprintf(stderr, "%s\n", string); |
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fprintf(stderr, "%s: %s: File not found: %s\n", |
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progname, fname, string+8); |
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quit(1); |
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} |
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strcpy(name, s); |
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mgload(name); |
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return; |
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} |
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s = string; |
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i = 0; |
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while (i < sizeof(name)-1 && isid(*s)) |
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name[i++] = *s++; |
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name[i] = '\0'; |
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vp = vlookup(name); |
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if (vp != NULL) { |
| 298 |
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undefine(vp); |
| 299 |
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switch (vp->type) { |
| 300 |
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case REAL: |
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case FUNCTION: |
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if ((*s == '(') != (vp->type == FUNCTION)) { |
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fprintf(stderr, "%s\n", string); |
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fprintf(stderr, |
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"%s: %s: Bad %s declaration: %s\n", |
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progname, fname, |
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vp->type == FUNCTION ? |
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"function" : "variable", |
| 309 |
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name); |
| 310 |
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quit(1); |
| 311 |
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} |
| 312 |
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scompile(string, fname, 0); |
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vp->v.dfn = savestr(string); |
| 314 |
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break; |
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case STRING: |
| 316 |
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if (*s++ != '=') { |
| 317 |
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fprintf(stderr, "%s\n", string); |
| 318 |
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fprintf(stderr, "%s: %s: Missing '='\n", |
| 319 |
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progname, fname); |
| 320 |
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quit(1); |
| 321 |
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} |
| 322 |
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vp->v.s = savestr(s); |
| 323 |
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break; |
| 324 |
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case DATA: |
| 325 |
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if (*s++ != '=') { |
| 326 |
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fprintf(stderr, "%s\n", string); |
| 327 |
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fprintf(stderr, "%s: %s: Missing '='\n", |
| 328 |
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progname, fname); |
| 329 |
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quit(1); |
| 330 |
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} |
| 331 |
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if (!*s) { |
| 332 |
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loaddata(fname, fp, &vp->v.d); |
| 333 |
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#ifdef UNIX |
| 334 |
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} else if (*s == '!') { |
| 335 |
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if ((fp2 = popen(s+1, "r")) == NULL) { |
| 336 |
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fprintf(stderr, "%s\n", string); |
| 337 |
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fprintf(stderr, |
| 338 |
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"%s: %s: Cannot execute: %s\n", |
| 339 |
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progname, fname, s+1); |
| 340 |
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quit(1); |
| 341 |
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} |
| 342 |
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loaddata(s, fp2, &vp->v.d); |
| 343 |
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pclose(fp2); |
| 344 |
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#endif |
| 345 |
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} else { |
| 346 |
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if ((fp2 = fopen(s, "r")) == NULL) { |
| 347 |
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fprintf(stderr, "%s\n", string); |
| 348 |
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fprintf(stderr, |
| 349 |
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"%s: %s: Data file not found: %s\n", |
| 350 |
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progname, fname, s); |
| 351 |
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quit(1); |
| 352 |
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} |
| 353 |
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loaddata(s, fp2, &vp->v.d); |
| 354 |
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fclose(fp2); |
| 355 |
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} |
| 356 |
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break; |
| 357 |
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} |
| 358 |
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vp->flags |= DEFINED; |
| 359 |
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} else |
| 360 |
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setivar(name, fname, string); /* intermediate */ |
| 361 |
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} |
| 362 |
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| 363 |
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| 364 |
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setivar(vname, fname, definition) /* set an intermediate variable */ |
| 365 |
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char *vname; |
| 366 |
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char *fname; |
| 367 |
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char *definition; |
| 368 |
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{ |
| 369 |
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IVAR ivbeg; |
| 370 |
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|
register IVAR *iv; |
| 371 |
|
|
|
| 372 |
|
|
scompile(definition, fname, 0); /* compile the string */ |
| 373 |
|
|
|
| 374 |
|
|
ivbeg.next = ivhead; |
| 375 |
|
|
for (iv = &ivbeg; iv->next != NULL; iv = iv->next) |
| 376 |
|
|
if (!strcmp(vname, iv->next->name)) { |
| 377 |
|
|
iv = iv->next; |
| 378 |
|
|
freestr(iv->dfn); |
| 379 |
|
|
iv->dfn = savestr(definition); |
| 380 |
|
|
return; |
| 381 |
|
|
} |
| 382 |
|
|
|
| 383 |
|
|
iv->next = (IVAR *)emalloc(sizeof(IVAR)); |
| 384 |
|
|
iv = iv->next; |
| 385 |
|
|
iv->name = savestr(vname); |
| 386 |
|
|
iv->dfn = savestr(definition); |
| 387 |
|
|
iv->next = NULL; |
| 388 |
|
|
ivhead = ivbeg.next; |
| 389 |
|
|
} |
| 390 |
|
|
|
| 391 |
|
|
|
| 392 |
|
|
mgtoa(s, vp) /* get a variable's value in ascii form */ |
| 393 |
|
|
register char *s; |
| 394 |
|
|
VARIABLE *vp; |
| 395 |
|
|
{ |
| 396 |
|
|
register char *sv; |
| 397 |
|
|
|
| 398 |
|
|
if (!(vp->flags & DEFINED)) { |
| 399 |
|
|
strcpy(s, "UNDEFINED"); |
| 400 |
|
|
return; |
| 401 |
|
|
} |
| 402 |
|
|
switch (vp->type) { |
| 403 |
|
|
case REAL: |
| 404 |
|
|
case FUNCTION: |
| 405 |
|
|
sv = vp->v.dfn; |
| 406 |
|
|
while (*sv != '=' && *sv != ':') |
| 407 |
|
|
sv++; |
| 408 |
|
|
while (*++sv && *sv != ';') |
| 409 |
|
|
*s++ = *sv; |
| 410 |
|
|
*s = '\0'; |
| 411 |
|
|
break; |
| 412 |
|
|
case STRING: |
| 413 |
|
|
strcpy(s, vp->v.s); |
| 414 |
|
|
break; |
| 415 |
|
|
case DATA: |
| 416 |
|
|
strcpy(s, "DATA"); |
| 417 |
|
|
break; |
| 418 |
|
|
} |
| 419 |
|
|
} |
| 420 |
|
|
|
| 421 |
|
|
|
| 422 |
|
|
mgprint(vp, fp) /* print a variable definition */ |
| 423 |
|
|
register VARIABLE *vp; |
| 424 |
|
|
FILE *fp; |
| 425 |
|
|
{ |
| 426 |
|
|
register int i; |
| 427 |
|
|
|
| 428 |
|
|
switch (vp->type) { |
| 429 |
|
|
case REAL: |
| 430 |
|
|
case FUNCTION: |
| 431 |
|
|
fprintf(fp, "%s\n", vp->v.dfn); |
| 432 |
|
|
break; |
| 433 |
|
|
case STRING: |
| 434 |
|
|
fprintf(fp, "%s=\"", vp->name); |
| 435 |
|
|
for (i = 0; vp->v.s[i]; i++) |
| 436 |
|
|
switch (vp->v.s[i]) { |
| 437 |
|
|
case '"': |
| 438 |
|
|
case '\\': |
| 439 |
|
|
putc('\\', fp); |
| 440 |
|
|
/* fall through */ |
| 441 |
|
|
default: |
| 442 |
|
|
putc(vp->v.s[i], fp); |
| 443 |
|
|
break; |
| 444 |
|
|
} |
| 445 |
|
|
fprintf(fp, "\"\n"); |
| 446 |
|
|
break; |
| 447 |
|
|
case DATA: |
| 448 |
|
|
fprintf(fp, "%s=", vp->name); |
| 449 |
|
|
for (i = 0; i < vp->v.d.size; i++) { |
| 450 |
|
|
if (i % 4 == 0) |
| 451 |
|
|
fprintf(fp, "\n"); |
| 452 |
|
|
fprintf(fp, "\t%10e", vp->v.d.data[i]); |
| 453 |
|
|
} |
| 454 |
|
|
fprintf(fp, "\n;\n"); |
| 455 |
|
|
break; |
| 456 |
|
|
} |
| 457 |
|
|
} |
| 458 |
|
|
|
| 459 |
|
|
|
| 460 |
|
|
undefine(vp) /* undefine a variable */ |
| 461 |
|
|
register VARIABLE *vp; |
| 462 |
|
|
{ |
| 463 |
|
|
if (vp == NULL || !(vp->flags & DEFINED)) |
| 464 |
|
|
return; |
| 465 |
|
|
|
| 466 |
|
|
switch (vp->type) { |
| 467 |
|
|
case REAL: |
| 468 |
|
|
case FUNCTION: |
| 469 |
|
|
dremove(vp->name); |
| 470 |
|
|
freestr(vp->v.dfn); |
| 471 |
|
|
break; |
| 472 |
|
|
case STRING: |
| 473 |
|
|
freestr(vp->v.s); |
| 474 |
|
|
break; |
| 475 |
|
|
case DATA: |
| 476 |
|
|
efree((char *)vp->v.d.data); |
| 477 |
|
|
break; |
| 478 |
|
|
} |
| 479 |
|
|
vp->flags &= ~DEFINED; |
| 480 |
|
|
} |
| 481 |
|
|
|
| 482 |
|
|
|
| 483 |
|
|
VARIABLE * |
| 484 |
|
|
vlookup(vname) /* look up a variable by its name */ |
| 485 |
|
|
char *vname; |
| 486 |
|
|
{ |
| 487 |
|
|
register int i; |
| 488 |
|
|
register VARIABLE *vp; |
| 489 |
|
|
|
| 490 |
|
|
i = vname[0] - 'A'; |
| 491 |
|
|
if (i >= 0 && i < MAXCUR) /* curve variables */ |
| 492 |
|
|
for (vp = cparam[i], i = 0; i < NCVARS; vp++, i++) |
| 493 |
|
|
if (!strcmp(vp->name, vname)) |
| 494 |
|
|
return(vp); |
| 495 |
|
|
/* standard variables */ |
| 496 |
|
|
for (vp = gparam; vp < &gparam[NVARS]; vp++) |
| 497 |
|
|
if (!strcmp(vp->name, vname)) |
| 498 |
|
|
return(vp); |
| 499 |
|
|
return(NULL); /* not found */ |
| 500 |
|
|
} |
| 501 |
|
|
|
| 502 |
|
|
|
| 503 |
|
|
loaddata(fname, fp, dp) /* load data from a stream */ |
| 504 |
|
|
char *fname; |
| 505 |
|
|
FILE *fp; |
| 506 |
|
|
register DARRAY *dp; |
| 507 |
|
|
{ |
| 508 |
|
|
char sbuf[MAXLINE], *fgets(); |
| 509 |
|
|
register char *cp; |
| 510 |
|
|
|
| 511 |
|
|
dp->size = 0; |
| 512 |
|
|
dp->data = NULL; |
| 513 |
|
|
while (fgets(sbuf, sizeof(sbuf), fp) != NULL) { |
| 514 |
|
|
cp = sbuf; |
| 515 |
|
|
while (*cp) { |
| 516 |
|
|
while (isspace(*cp) || *cp == ',') |
| 517 |
|
|
cp++; |
| 518 |
|
|
if (isnum(*cp)) { |
| 519 |
|
|
dp->data = (float *)erealloc((char *)dp->data, |
| 520 |
|
|
(dp->size+1)*sizeof(float)); |
| 521 |
|
|
dp->data[dp->size++] = atof(cp); |
| 522 |
|
|
do |
| 523 |
|
|
cp++; |
| 524 |
|
|
while (isnum(*cp)); |
| 525 |
|
|
} else if (*cp == ';') { |
| 526 |
|
|
return; |
| 527 |
|
|
} else if (*cp) { |
| 528 |
|
|
fputs(sbuf, stderr); |
| 529 |
|
|
fprintf(stderr, "%s: %s: Bad data\n", |
| 530 |
|
|
progname, fname); |
| 531 |
|
|
quit(1); |
| 532 |
|
|
} |
| 533 |
|
|
} |
| 534 |
|
|
} |
| 535 |
|
|
} |
| 536 |
|
|
|
| 537 |
|
|
|
| 538 |
|
|
char * |
| 539 |
|
|
findfile(fname, pathlist) /* find the file fname, return full path */ |
| 540 |
|
|
char *fname; |
| 541 |
|
|
register char **pathlist; |
| 542 |
|
|
{ |
| 543 |
|
|
static char ffname[128]; |
| 544 |
|
|
char *strcpy(), *strcat(); |
| 545 |
|
|
register int fd; |
| 546 |
|
|
|
| 547 |
|
|
if (fname[0] == '/') |
| 548 |
|
|
return(fname); |
| 549 |
|
|
|
| 550 |
|
|
while (*pathlist != NULL) { |
| 551 |
|
|
strcpy(ffname, *pathlist); |
| 552 |
|
|
strcat(ffname, fname); |
| 553 |
|
|
if ((fd = open(ffname, 0)) != -1) { |
| 554 |
|
|
close(fd); |
| 555 |
|
|
return(ffname); |
| 556 |
|
|
} |
| 557 |
|
|
pathlist++; |
| 558 |
|
|
} |
| 559 |
|
|
return(NULL); |
| 560 |
|
|
} |
| 561 |
|
|
|
| 562 |
|
|
|
| 563 |
|
|
int |
| 564 |
|
|
mgcurve(c, f) /* get a curve's (unmapped) values */ |
| 565 |
|
|
int c; |
| 566 |
|
|
int (*f)(); |
| 567 |
|
|
{ |
| 568 |
|
|
int nargs; |
| 569 |
|
|
double x[2], step; |
| 570 |
|
|
register VARIABLE *cv; |
| 571 |
|
|
register float *p; |
| 572 |
|
|
register int npts; |
| 573 |
|
|
|
| 574 |
|
|
if (c < 0 || c >= MAXCUR) |
| 575 |
|
|
return(-1); |
| 576 |
|
|
cv = cparam[c]; |
| 577 |
|
|
|
| 578 |
|
|
if (cv[C].flags & DEFINED) { /* function or map */ |
| 579 |
|
|
|
| 580 |
|
|
nargs = fundefined(cv[C].name); |
| 581 |
|
|
if (nargs < 1 || nargs > 2) { |
| 582 |
|
|
fprintf(stderr, "%s: bad # of arguments for '%c'\n", |
| 583 |
|
|
progname, c+'A'); |
| 584 |
|
|
quit(1); |
| 585 |
|
|
} |
| 586 |
|
|
|
| 587 |
|
|
if (cv[CDATA].flags & DEFINED) { /* map */ |
| 588 |
|
|
npts = cv[CDATA].v.d.size / nargs; |
| 589 |
|
|
p = cv[CDATA].v.d.data; |
| 590 |
|
|
while (npts--) { |
| 591 |
|
|
x[0] = *p++; |
| 592 |
|
|
if (nargs == 2) |
| 593 |
|
|
x[1] = *p++; |
| 594 |
|
|
(*f)(c, x[0], |
| 595 |
|
|
funvalue(cv[C].name, nargs, x)); |
| 596 |
|
|
} |
| 597 |
|
|
npts = cv[CDATA].v.d.size / nargs; |
| 598 |
|
|
} else if ( nargs == 1 && /* function */ |
| 599 |
|
|
gparam[XMIN].flags & DEFINED && |
| 600 |
|
|
gparam[XMAX].flags & DEFINED && |
| 601 |
|
|
cv[CNPOINTS].flags & DEFINED ) { |
| 602 |
|
|
npts = varvalue(cv[CNPOINTS].name); |
| 603 |
|
|
if (npts > 1) |
| 604 |
|
|
step = (varvalue(gparam[XMAX].name) - |
| 605 |
|
|
varvalue(gparam[XMIN].name)) / |
| 606 |
|
|
(npts - 1); |
| 607 |
|
|
else |
| 608 |
|
|
step = 0.0; |
| 609 |
|
|
for (x[0] = varvalue(gparam[XMIN].name); |
| 610 |
|
|
npts--; x[0] += step) |
| 611 |
|
|
(*f)(c, x[0], |
| 612 |
|
|
funvalue(cv[C].name, 1, x)); |
| 613 |
|
|
npts = varvalue(cv[CNPOINTS].name); |
| 614 |
|
|
} else { |
| 615 |
|
|
fprintf(stderr, |
| 616 |
|
|
"%s: function '%c' needs %cdata or xmin, xmax, %cnpoints\n", |
| 617 |
|
|
progname, c+'A', c+'A', c+'A'); |
| 618 |
|
|
quit(1); |
| 619 |
|
|
} |
| 620 |
|
|
|
| 621 |
|
|
} else if (cv[CDATA].flags & DEFINED) { /* data */ |
| 622 |
|
|
|
| 623 |
|
|
npts = cv[CDATA].v.d.size / 2; |
| 624 |
|
|
p = cv[CDATA].v.d.data; |
| 625 |
|
|
while (npts--) { |
| 626 |
|
|
(*f)(c, p[0], p[1]); |
| 627 |
|
|
p += 2; |
| 628 |
|
|
} |
| 629 |
|
|
npts = cv[CDATA].v.d.size / 2; |
| 630 |
|
|
|
| 631 |
|
|
} else |
| 632 |
|
|
|
| 633 |
|
|
npts = 0; |
| 634 |
|
|
|
| 635 |
|
|
return(npts); |
| 636 |
|
|
} |
