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Fix large features getting included multiple times at low zooms

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This commit is contained in:
Eric Fischer
2014-09-23 17:18:36 -07:00
parent 8f77376b58
commit 95c2fb67b2
3 changed files with 38 additions and 2 deletions
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tile.cc
+14
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@@ -145,6 +145,12 @@ void write_tile(struct index *start, struct index *end, char *metabase, unsigned
values.head = NULL;
values.tail = NULL;
struct pool dup;
dup.n = 1;
dup.vals = NULL;
dup.head = NULL;
dup.tail = NULL;
double interval = 1;
double seq = 0;
@@ -170,6 +176,12 @@ void write_tile(struct index *start, struct index *end, char *metabase, unsigned
}
if (t == VT_POINT || draw(&meta, NULL, z, tx, ty, detail)) {
struct pool_val *pv = pool_long_long(&dup, &i->fpos, 0);
if (pv->n == 0) {
continue;
}
pv->n = 0;
meta = metabase + i->fpos;
deserialize_int(&meta, &t);
@@ -220,6 +232,8 @@ void write_tile(struct index *start, struct index *end, char *metabase, unsigned
}
}
pool_free(&keys);
pool_free(&values);
pool_free(&dup);
std::string s;
std::string compressed;