1
0
Fork 0
flightgear/utils/xmlgrep/recenter.c

157 lines
3.4 KiB
C

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <xml.h>
char *
getCommandLineOption(int argc, char **argv, char const *option)
{
int slen = strlen(option);
char *rv = 0;
int i;
for (i=0; i<argc; i++)
{
if (strncmp(argv[i], option, slen) == 0)
{
rv = "";
i++;
if (i<argc) rv = argv[i];
}
}
return rv;
}
void
show_help()
{
printf("Usage: recenter <file>\n");
printf("Calculates the center location of all models in a file,\n");
printf("recenters all models around (0, 0, 0) and reports the\n");
printf("center location.\n");
exit(-1);
}
const char *delimiter = " ";
void print_xml(void *id, double x, double y, double z, char offsets, char* name)
{
static int level = 1;
void *xid = xmlMarkId(id);
unsigned int num;
num = xmlNodeGetNum(xid, "*");
if (num == 0)
{
if (offsets && strcasecmp(name, "offsets"))
{
double val = xmlGetDouble(id);
if (!strcasecmp(name, "x-m")) {
printf("%.3f", val-x);
} else if (!strcasecmp(name, "y-m")) {
printf("%.3f", val-y);
} else if (!strcasecmp(name, "z-m")) {
printf("%.3f", val-z);
} else {
printf("%.3f", val);
}
}
else
{
char *s;
s = xmlGetString(xid);
if (s)
{
printf("%s", s);
free(s);
}
}
}
else
{
unsigned int i, q;
for (i=0; i<num; i++)
{
if (xmlNodeGetPos(id, xid, "*", i) != 0)
{
char name[256];
xmlNodeCopyName(xid, (char *)&name, 256);
printf("\n");
for(q=0; q<level; q++) printf("%s", delimiter);
printf("<%s>", name);
level++;
if (!offsets) offsets = !strcasecmp(name, "offsets");
print_xml(xid, x, y, z, offsets, name);
level--;
printf("</%s>", name);
}
else printf("error\n");
}
printf("\n");
for(q=1; q<level; q++) printf("%s", delimiter);
}
}
int
main(int argc, char **argv)
{
const char *fname;
void *rid;
if (argc != 2) {
show_help();
}
fname = argv[1];
rid = xmlOpen(fname);
if (rid)
{
void *pid = xmlNodeGet(rid, "PropertyList");
if (pid)
{
double x, y, z;
int i, num;
void *mid;
x = y = z = 0.0;
mid = xmlMarkId(pid);
num = xmlNodeGetNum(pid, "model");
for (i=0; i<num; i++)
{
if (xmlNodeGetPos(pid, mid, "model", i) != 0)
{
void *oid = xmlNodeGet(mid, "offsets");
if (oid)
{
x += xmlNodeGetDouble(oid, "x-m");
y += xmlNodeGetDouble(oid, "y-m");
z += xmlNodeGetDouble(oid, "z-m");
xmlFree(oid);
}
}
}
xmlFree(mid);
x /= (double)num;
y /= (double)num;
z /= (double)num;
printf("<!--\n");
printf(" center: x-m: %5.3f\n", x);
printf(" center: y-m: %5.3f\n", y);
printf(" center: z-m: %5.3f\n", z);
printf("-->\n");
print_xml(rid, x, y, z, 0, "");
xmlFree(pid);
}
xmlClose(rid);
}
return 0;
}