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FlatGeobuf multipoints [#2]

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This commit is contained in:
Brandon Liu 2022-03-27 01:05:50 +08:00
parent 33a9aef758
commit 245570feff
1 changed files with 18 additions and 4 deletions
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22
flatgeobuf.cpp
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@ -36,6 +36,18 @@ uint64_t PackedRTreeSize(const uint64_t numItems, const uint16_t nodeSize)
return numNodes * sizeof(NodeItem);
}
drawvec readPoints(const FlatGeobuf::Geometry *geometry) {
auto xy = geometry->xy();
drawvec dv;
for (unsigned int i = 0; i < xy->size(); i+=2) {
long long x, y;
projection->project(xy->Get(i), xy->Get(i+1), 32, &x, &y);
dv.push_back(draw(VT_MOVETO, x, y));
}
return dv;
}
drawvec readLinePart(const FlatGeobuf::Geometry *geometry) {
auto xy = geometry->xy();
auto ends = geometry->ends();
@ -56,10 +68,12 @@ drawvec readLinePart(const FlatGeobuf::Geometry *geometry) {
}
drawvec readGeometry(const FlatGeobuf::Geometry *geometry, FlatGeobuf::GeometryType h_geometry_type) {
if (h_geometry_type == FlatGeobuf::GeometryType::LineString) {
if (h_geometry_type == FlatGeobuf::GeometryType::MultiPoint) {
return readPoints(geometry);
} if (h_geometry_type == FlatGeobuf::GeometryType::LineString) {
return readLinePart(geometry);
} else if (h_geometry_type == FlatGeobuf::GeometryType::MultiLineString) {
return readLinePart(geometry); // TODO fixme
return readLinePart(geometry);
} if (h_geometry_type == FlatGeobuf::GeometryType::Polygon) {
return readLinePart(geometry);
} else if (h_geometry_type == FlatGeobuf::GeometryType::MultiPolygon) {
@ -123,7 +137,7 @@ void parse_flatgeobuf(std::vector<struct serialization_state> *sst, const char *
index_size = PackedRTreeSize(features_count,node_size);
}
const char* start = src + 8 + 4 + header_size + index_size;
while (start < src + len) {
serial_feature sf;