svn-gvsig-desktop / tags / v1_9_Build_1246 / libraries / libjni-proj4 / src / nad2nad.c @ 33782
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/* <<<< North American Datum Transfer Program >>>> */
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#ifndef lint
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static const char SCCSID[]="@(#)nad2nad.c 4.5 94/02/15 GIE REL"; |
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#endif
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <ctype.h> |
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#include <string.h> |
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#define PJ_LIST_H <nad_list.h>
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#include <projects.h> |
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#include <emess.h> |
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|
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#define MAX_LINE 200 |
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#define MAX_PARGS 100 |
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#define PJ_INVERS(P) (P->inv ? 1 : 0) |
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static int |
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echoin = 0, /* echo input data to output line */ |
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tag = '#'; /* beginning of line tag character */ |
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static char |
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*oform = (char *)0, /* output format for x-y or decimal degrees */ |
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*oterr = "*\t*", /* output line for unprojectable input */ |
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*inargs = 0,
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*outargs = 0,
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*czone = 0,
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*usage = |
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"%s\nusage: %s [ -eEfihortwW [args] ] [ files ]\n";
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struct CTABLE
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*ctab = 0,
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*htab = 0;
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static struct TAG_LIST { |
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char *tag;
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short sw;
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} ops_list[] = {
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"utm=", 0, |
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"spcs=", 1, |
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"feet", 2, |
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"27", 3, |
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"83", 4, |
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"hp", 5, |
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"bin", 6, |
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"rev", 7, |
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0, 0, |
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}; |
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static struct IO_CON { |
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short rev; /* reverse lon/lat or x/y */ |
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short bin; /* io binary */ |
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short ll; /* io lat-lon */ |
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short t83; /* data in 83 datum */ |
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short zone; /* <100 utm zone, ==0 geog, else state plane zone */ |
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short nprojc; /* number of entries in projc */ |
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char *hp; /* high precision name */ |
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char *projc[10]; /* params for pj_init */ |
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PJ *cnv; |
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} input = {
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0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0,
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}, output = {
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0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0,
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}; |
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static void |
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set_zone(int in, struct IO_CON *io) { |
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char tmp[20]; |
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if (io->hp) {
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io->t83 = 1;
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if (!(htab = nad_init(io->hp)))
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emess(1,"hp datum file: %s, failed: %s", io->hp, |
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pj_strerrno(pj_errno)); |
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} |
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if (io->zone > 0) { |
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if (io->zone <= 60) { /* UTM zone */ |
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io->nprojc = 2; /* no other options allowed */ |
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io->projc[0] = "proj=utm"; |
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sprintf(tmp, "zone=%d", io->zone);
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io->projc[1] = io->t83 ? "ellps=GRS80" : "ellps=clrk66"; |
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} else /* SPCS zone */ |
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sprintf(tmp, "init=nad%s:%d", io->t83 ? "83" : "27", io->zone); |
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io->projc[io->nprojc++] = tmp; |
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io->projc[io->nprojc++] = "no_defs";
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if (!(io->cnv = pj_init(io->nprojc, io->projc)))
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emess(1,pj_strerrno(pj_errno));
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io->ll = 0;
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} |
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} |
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static void |
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setup() {
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/* check and set zone operations */
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if (input.hp && output.hp)
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emess(1,"both input and output cannot be high precision"); |
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set_zone(1, &input);
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set_zone(0, &output);
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if (input.cnv && !output.cnv)
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output.ll = 1;
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if (output.cnv && !input.cnv)
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input.ll = 1;
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if (!input.cnv && !output.cnv)
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output.ll = input.ll = 1;
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if (czone) {
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if (!input.hp && !output.hp && input.t83 == output.t83)
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emess(1,"identical datums"); |
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if (!(ctab = nad_init(czone)))
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emess(1,"datum file: %s, failed: %s", czone, pj_strerrno(pj_errno)); |
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} else if (input.t83 != output.t83) |
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emess(1,"conversion region (-r) not specified"); |
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} |
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static void |
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set_ops(char *s, struct IO_CON *io) { |
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char *intag;
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struct TAG_LIST *p;
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for ( ; intag = strtok(s, " ,\t"); s = 0) { |
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for (p = ops_list; p->tag; ++p) {
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if (!strncmp(intag, p->tag, strlen(p->tag)))
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break;
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} |
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if (!p->tag)
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emess(1,"invalid selection"); |
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switch (p->sw) {
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case 0: |
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case 1: |
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s = strchr(intag, '=') + 1; |
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io->zone = atoi(s); |
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break;
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case 2: |
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if (io->zone <= 60) |
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emess(1,"spcs zone must be selected"); |
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io->projc[io->nprojc++] = "units=us-ft";
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break;
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case 3: io->t83 = 0; break; |
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case 4: io->t83 = 1; break; |
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case 5: |
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if (!(intag = strchr(intag, '=')) || *++intag == '\0') |
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emess(1,"hp missing name"); |
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strcpy(io->hp = (char*)malloc(strlen(intag)+1), intag); |
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break;
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case 6: io->bin = 1; break; |
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case 7: io->rev = 1; break; |
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} |
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} |
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} |
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static void |
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process(FILE *fid) {
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char line[MAX_LINE], *s, t, pline[100]; |
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projUV val; |
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double tmp;
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for (;;) {
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if (input.bin)
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fread(&val, sizeof(projUV), 1, fid); |
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else if (s = fgets(line, MAX_LINE, fid)) { |
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if (*s == tag) {
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fputs(line, stdout); |
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continue;
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} else if (input.ll) { |
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val.u = dmstor(s, &s); |
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val.v = dmstor(s, &s); |
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} else {
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val.u = strtod(s, &s); |
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val.v = strtod(s, &s); |
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} |
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} |
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if (feof(fid))
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break;
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if (input.rev) {
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tmp = val.u; |
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val.u = val.v; |
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val.v = tmp; |
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} |
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/* data in, manupulate */
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if (input.cnv)
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val = pj_inv(val, input.cnv); |
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if (input.hp)
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val = nad_cvt(val, 1, htab);
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/* nad conversion */
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if (ctab)
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val = nad_cvt(val, input.t83 ? 1 : 0, ctab); |
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if (output.hp)
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val = nad_cvt(val, 0, htab);
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if (output.cnv)
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val = pj_fwd(val, output.cnv); |
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/* output data */
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if (output.rev) {
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tmp = val.u; |
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val.u = val.v; |
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val.v = tmp; |
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} |
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if (output.bin)
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(void)fwrite(&val, sizeof(projUV), 1, stdout); |
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else {
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if (echoin) {
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t = *s; |
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*s = '\0';
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(void)fputs(line, stdout);
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(void)putchar('\t'); |
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*s = t; |
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} |
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if (val.u == HUGE_VAL)
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(void)fputs(oterr, stdout);
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else if (output.ll) |
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if (oform) {
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(void)printf(oform, val.u * RAD_TO_DEG);
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(void)putchar('\t'); |
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(void)printf(oform, val.v * RAD_TO_DEG);
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} else if (output.rev) { |
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(void)fputs(rtodms(pline, val.u, 'N', 'S'), stdout); |
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(void)putchar('\t'); |
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(void)fputs(rtodms(pline, val.v, 'E', 'W'), stdout); |
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} else {
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(void)fputs(rtodms(pline, val.u, 'E', 'W'), stdout); |
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(void)putchar('\t'); |
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(void)fputs(rtodms(pline, val.v, 'N', 'S'), stdout); |
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} |
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else {
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(void)printf(oform ? oform : "%.2f", val.u); |
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(void)putchar('\t'); |
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(void)printf(oform ? oform : "%.2f", val.v); |
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} |
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if (input.bin)
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putchar('\n');
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else
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(void)fputs(s, stdout);
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} |
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} |
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} |
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int
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main(int argc, char **argv) { |
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char *arg, **eargv = argv, work[MAX_PARGS];
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FILE *fid; |
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int eargc = 0, c; |
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if (emess_dat.Prog_name = strrchr(*argv,DIR_CHAR))
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++emess_dat.Prog_name; |
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else emess_dat.Prog_name = *argv;
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if (argc <= 1 ) { |
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(void)fprintf(stderr, usage, pj_release, emess_dat.Prog_name);
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exit (0);
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} |
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/* process run line arguments */
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while (--argc > 0) { /* collect run line arguments */ |
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if(**++argv == '-') for(arg = *argv;;) { |
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switch(*++arg) {
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case '\0': /* position of "stdin" */ |
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if (arg[-1] == '-') eargv[eargc++] = "-"; |
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break;
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case 'i': /* input control */ |
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case 'o': /* output control */ |
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if (--argc <= 0) goto noargument; |
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strncpy(work, *++argv, MAX_PARGS); |
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set_ops(work, *arg == 'i' ? &input : &output);
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continue;
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case 'r': /* nad27/83 conversion zone */ |
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if (--argc <= 0) goto noargument; |
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czone = *++argv; |
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continue;
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case 'E': /* echo ascii input to ascii output */ |
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echoin = 1;
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continue;
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case 't': /* set col. one char */ |
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if (arg[1]) tag = *++arg; |
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else emess(1,"missing -t col. 1 tag"); |
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continue;
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case 'W': /* specify seconds precision */ |
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case 'w': /* -W for constant field width */ |
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if ((c = arg[1]) != 0 && isdigit(c)) { |
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set_rtodms(c - '0', *arg == 'W'); |
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++arg; |
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} else
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emess(1,"-W argument missing or non-digit"); |
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continue;
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case 'f': /* alternate output format degrees or xy */ |
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if (--argc <= 0) goto noargument; |
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oform = *++argv; |
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continue;
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case 'e': /* error line alternative */ |
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if (--argc <= 0) |
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noargument: emess(1,"missing argument for -%c",*arg); |
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oterr = *++argv; |
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continue;
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default:
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emess(1, "invalid option: -%c",*arg); |
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break;
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} |
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break;
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} else /* assumed to be input file name(s) */ |
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eargv[eargc++] = *argv; |
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} |
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if (eargc == 0) /* if no specific files force sysin */ |
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eargv[eargc++] = "-";
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/* done with parameter and control input */
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setup(); |
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/* process input file list */
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for ( ; eargc-- ; ++eargv) {
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if (**eargv == '-') { |
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fid = stdin; |
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emess_dat.File_name = "<stdin>";
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} else {
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if ((fid = fopen(*eargv, "r")) == NULL) { |
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emess(-2, *eargv, "input file"); |
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continue;
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} |
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emess_dat.File_name = *eargv; |
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} |
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emess_dat.File_line = 0;
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/* process file */
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process(fid); |
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(void)fclose(fid);
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emess_dat.File_name = 0;
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} |
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exit(0); /* normal completion */ |
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} |