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refs #159: fix bug with filtering on numeric layer values

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This commit is contained in:
Justin R. Miller
2014-04-30 16:24:54 -07:00
committed by Konstantin Käfer
parent ab22f68970
commit 7010954229
1 changed files with 7 additions and 3 deletions
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10
src/map/vector_tile.cpp
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@@ -232,14 +232,18 @@ FilteredVectorTileLayer::FilteredVectorTileLayer(const VectorTileLayer& layer, c
// If we filter further by field/value, parse the key/value indices first
// because protobuf doesn't mandate a particular key order.
if (bucket_desc.source_field.size()) {
// Find out what key/value IDs we need.
// Get the ID of the desired layer key.
auto key_it = std::find(layer.keys.begin(), layer.keys.end(), bucket_desc.source_field);
if (key_it != layer.keys.end()) {
key = (int32_t)(key_it - layer.keys.begin());
}
// Get the ID of the desired layer value(s), comparing as strings in
// order to avoid numeric type mismatches between the layer and the
// style definition.
for (const Value& source_value : bucket_desc.source_value) {
auto value_it = std::find(layer.values.begin(), layer.values.end(), source_value);
auto value_it = std::find_if(layer.values.begin(), layer.values.end(), [&source_value](const Value& layer_value) {
return (toString(layer_value) == toString(source_value));
});
if (value_it != layer.values.end()) {
values.insert((uint32_t)(value_it - layer.values.begin()));
}