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Fix multipolygon and feature ID parsing

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This commit is contained in:
Eric Fischer 2017-08-25 17:40:08 -07:00
parent ad89fb88fb
commit 8d09f0769e
1 changed files with 44 additions and 24 deletions
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68
geobuf.cpp
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@ -94,7 +94,7 @@ drawvec readLinePart(std::vector<long long> &coords, std::vector<int> &lengths,
long long x, y;
projection->project(p[0], p[1], 32, &x, &y);
if (i == 0) {
if (i == start) {
dv.push_back(draw(VT_MOVETO, x, y));
} else {
dv.push_back(draw(VT_LINETO, x, y));
@ -123,7 +123,7 @@ drawvec readMultiLine(std::vector<long long> &coords, std::vector<int> &lengths,
drawvec dv2 = readLinePart(coords, lengths, dim, e, here, here + lengths[i] * dim, closed);
here += lengths[i] * dim;
for (size_t j = 0; i < dv2.size(); i++) {
for (size_t j = 0; j < dv2.size(); j++) {
dv.push_back(dv2[j]);
}
}
@ -132,7 +132,32 @@ drawvec readMultiLine(std::vector<long long> &coords, std::vector<int> &lengths,
}
drawvec readMultiPolygon(std::vector<long long> &coords, std::vector<int> &lengths, size_t dim, double e) {
return drawvec();
if (lengths.size() == 0) {
return readLinePart(coords, lengths, dim, e, 0, coords.size(), true);
}
size_t polys = lengths[0];
size_t n = 1;
size_t here = 0;
drawvec dv;
for (size_t i = 0; i < polys; i++) {
size_t rings = lengths[n++];
for (size_t j = 0; j < rings; j++) {
drawvec dv2 = readLinePart(coords, lengths, dim, e, here, here + lengths[n] * dim, true);
here += lengths[n] * dim;
n++;
for (size_t k = 0; k < dv2.size(); k++) {
dv.push_back(dv2[k]);
}
}
dv.push_back(draw(VT_CLOSEPATH, 0, 0)); // mark that the next ring is outer
}
return dv;
}
drawvec readGeometry(protozero::pbf_reader &pbf, size_t dim, double e, std::vector<std::string> &keys, int &type) {
@ -146,7 +171,7 @@ drawvec readGeometry(protozero::pbf_reader &pbf, size_t dim, double e, std::vect
break;
case 2: {
auto pi = pbf.get_packed_sint32();
auto pi = pbf.get_packed_uint32();
for (auto it = pi.first; it != pi.second; ++it) {
lengths.push_back(*it);
}
@ -186,14 +211,7 @@ drawvec readGeometry(protozero::pbf_reader &pbf, size_t dim, double e, std::vect
dv = readMultiPolygon(coords, lengths, dim, e);
}
#if 0
for (size_t i = 0; i < dv.size(); i++) {
printf("%d %lld %lld\n", dv[i].op, dv[i].x, dv[i].y);
}
printf("\n");
#endif
type /= 2;
type = type / 2 + 1;
return dv;
}
@ -203,30 +221,31 @@ void readFeature(protozero::pbf_reader &pbf, size_t dim, double e, std::vector<s
bool has_id = false;
std::vector<serial_val> values;
std::vector<size_t> properties;
int type = 0;
while (pbf.next()) {
switch (pbf.tag()) {
case 1: {
int type;
protozero::pbf_reader geometry_reader(pbf.get_message());
dv = readGeometry(geometry_reader, dim, e, keys, type);
break;
}
case 11:
case 11: {
static bool warned = false;
if (!warned) {
fprintf(stderr, "Non-numeric feature IDs not supported\n");
warned = true;
}
pbf.skip();
break;
}
case 12:
id = pbf.get_int64();
has_id = true;
break;
case 12: {
static bool warned = false;
if (!warned) {
fprintf(stderr, "Non-numeric feature IDs not supported");
warned = true;
}
break;
}
case 13: {
protozero::pbf_reader value_reader(pbf.get_message());
values.push_back(readValue(value_reader, keys));
@ -249,7 +268,7 @@ void readFeature(protozero::pbf_reader &pbf, size_t dim, double e, std::vector<s
serial_feature sf;
sf.layer = layer;
sf.layername = layername;
sf.segment = 0; // single thread
sf.segment = 0; // single thread
sf.has_id = has_id;
sf.id = id;
sf.has_tippecanoe_minzoom = false;
@ -257,6 +276,7 @@ void readFeature(protozero::pbf_reader &pbf, size_t dim, double e, std::vector<s
sf.feature_minzoom = false;
sf.seq = (*sst->layer_seq);
sf.geometry = dv;
sf.t = type;
for (size_t i = 0; i + 1 < properties.size(); i += 2) {
if (properties[i] >= keys.size()) {