func (dec *dataDecoder) parseNodes(pb *OSMPBF.PrimitiveBlock, nodes []*OSMPBF.Node) {
st := pb.GetStringtable().GetS()
granularity := int64(pb.GetGranularity())
dateGranularity := int64(pb.GetDateGranularity())
latOffset := pb.GetLatOffset()
lonOffset := pb.GetLonOffset()
for _, node := range nodes {
id := node.GetId()
lat := node.GetLat()
lon := node.GetLon()
latitude := 1e-9 * float64((latOffset + (granularity * lat)))
longitude := 1e-9 * float64((lonOffset + (granularity * lon)))
tags := extractTags(st, node.GetKeys(), node.GetVals())
info := extractInfo(st, node.GetInfo(), dateGranularity)
dec.q = append(dec.q, &Node{id, latitude, longitude, tags, info})
panic("Please test this first")
}
}
func (dec *dataDecoder) parseDenseNodes(pb *OSMPBF.PrimitiveBlock, dn *OSMPBF.DenseNodes) {
st := pb.GetStringtable().GetS()
granularity := int64(pb.GetGranularity())
latOffset := pb.GetLatOffset()
lonOffset := pb.GetLonOffset()
dateGranularity := int64(pb.GetDateGranularity())
ids := dn.GetId()
lats := dn.GetLat()
lons := dn.GetLon()
di := dn.GetDenseinfo()
tu := tagUnpacker{st, dn.GetKeysVals(), 0}
var id, lat, lon int64
var state denseInfoState
for index := range ids {
id = ids[index] + id
lat = lats[index] + lat
lon = lons[index] + lon
latitude := 1e-9 * float64((latOffset + (granularity * lat)))
longitude := 1e-9 * float64((lonOffset + (granularity * lon)))
tags := tu.next()
info := extractDenseInfo(st, &state, di, index, dateGranularity)
dec.q = append(dec.q, &Node{id, latitude, longitude, tags, info})
}
}
func (dec *dataDecoder) parseRelations(pb *OSMPBF.PrimitiveBlock, relations []*OSMPBF.Relation) {
st := pb.GetStringtable().GetS()
dateGranularity := int64(pb.GetDateGranularity())
for _, rel := range relations {
id := rel.GetId()
tags := extractTags(st, rel.GetKeys(), rel.GetVals())
members := extractMembers(st, rel)
info := extractInfo(st, rel.GetInfo(), dateGranularity)
dec.q = append(dec.q, &Relation{id, tags, members, info})
}
}
func (dec *dataDecoder) parseWays(pb *OSMPBF.PrimitiveBlock, ways []*OSMPBF.Way) {
st := pb.GetStringtable().GetS()
dateGranularity := int64(pb.GetDateGranularity())
for _, way := range ways {
id := way.GetId()
tags := extractTags(st, way.GetKeys(), way.GetVals())
refs := way.GetRefs()
var nodeID int64
nodeIDs := make([]int64, len(refs))
for index := range refs {
nodeID = refs[index] + nodeID // delta encoding
nodeIDs[index] = nodeID
}
info := extractInfo(st, way.GetInfo(), dateGranularity)
dec.q = append(dec.q, &Way{id, tags, nodeIDs, info})
}
}