void path_recalculate(unsigned pathid)
{
path* const pth = pathstructarray[pathid];
if (!pth) return;
pth->total_length = 0;
pth->pointoffset.clear();
if (!pth->pointarray.size()) return;
const size_t pc = pth->pointarray.size();
const path_point& start = pth->closed ? pth->pointarray[pc-1] : pth->pointarray[0];
const path_point& end = pth->closed ? pth->pointarray[0] : pth->pointarray[pc-1];
//const path_point& beforestart = pth->closed ? pth->pointarray[pc-2] : pth->pointarray[0];
//const path_point& afterend = pth->closed ? pth->pointarray[1] : pth->pointarray[pc-1];
double minx=DBL_MAX,miny=DBL_MAX,maxx=-DBL_MAX,maxy=-DBL_MAX;
for (size_t i = 0; i < pc; i++)
{
const double len =
(pth->smooth) ?
//blen(i==0 ? &beforestart : (i==1 ? &start : &pth->pointarray[i-2]), i==0 ? &start : &pth->pointarray[i-1], &pth->pointarray[i])
//blen(&pth->pointarray[i], i==pc-1 ? &end : &pth->pointarray[i+1], i==pc-2 ? &afterend : (i==pc-1 ? &end : &pth->pointarray[i+2]))
blen(i==0 ? &start : &pth->pointarray[i-1], &pth->pointarray[i], i+1==pc ? &end : &pth->pointarray[i+1])
//blen((i==0 || i==1) ? &start : &pth->pointarray[i-2], (i==0) ? &start : &pth->pointarray[i-1], i+1==pc ? &end : &pth->pointarray[i])
:
llen(i==0 ? &start : &pth->pointarray[i-1], &pth->pointarray[i]);
pth->pointarray[i].length = len;
pth->total_length += len;
minx = pth->pointarray[i].x<minx ? pth->pointarray[i].x : minx;
miny = pth->pointarray[i].y<miny ? pth->pointarray[i].y : miny;
maxx = pth->pointarray[i].x>maxx ? pth->pointarray[i].x : maxx;
maxy = pth->pointarray[i].y>maxy ? pth->pointarray[i].y : maxy;
}
pth->centerx = minx + (maxx-minx)/2;
pth->centery = miny + (maxy-miny)/2;
double position = 0;
for (size_t i = 0; i < pc; i++)
{
//if (pth->pointarray[i].length) {
pth->pointoffset[position/pth->total_length] = i;
position += pth->pointarray[i].length;
//std::cout << "Position: " << position << " i: " << i << " length: " << pth->pointarray[i].length << std::endl;
//}
}
//std::cout << "size of pointoffset: " << pth->pointoffset.size() << std::endl;
//for (ppi_t i = pth->pointoffset.begin(); i != pth->pointoffset.end(); i++) std::cout << i->first << "=>" << i->second << std::endl;
}
void
debug(const char *fmt, ...)
{
va_list args;
char *fmt2;
va_start(args, fmt);
fmt2 = malloc(strlen(PACKAGE) + 4 + llen(getpid()) + strlen(fmt) + 1);
if (fmt2 != NULL) {
sprintf(fmt2, "%s[%lu]: %s", PACKAGE,
(unsigned long) getpid(), fmt);
vsyslog(PACKAGE_FACILITY | LOG_DEBUG, fmt2, args);
free(fmt2);
} else {
vsyslog(PACKAGE_FACILITY | LOG_DEBUG, fmt, args);
}
va_end(args);
}