//TODO in descritor use array for count that increment in that the last is the total
// Open returns a new Db that reads from file.
func OpenDB(file string) (*Db, error) {
f, err := os.Open(file)
if err != nil {
return nil, err
}
return &Db{
Decoder: osmpbf.NewDecoder(f),
File: f,
Cache: CreateNodeCache(CacheSize),
}, nil
}
// Open returns a new Db that reads from file.
func OpenDB(file string, maxBucketSize int) (*Db, error) {
f, err := os.Open(file)
if err != nil {
return nil, err
}
//maxBucketSize = 5 * 1024 * 1024
return &Db{
Bucket: make(map[int64][2]float64),
Decoder: osmpbf.NewDecoder(f),
File: f,
maxBucketSize: maxBucketSize,
}, nil
}
func main2() {
fmt.Println("Hello World!")
fmt.Println(time.Now())
fmt.Println(len(os.Args), os.Args)
min := [2]float64{48.964338, 2.037728} //Top left
max := [2]float64{48.994092, 2.073938} //Bottom Right
//max = [2]float64{v.Lat, v.Lon}
f, err := os.Open("Téléchargements/ile-de-france-latest.osm.pbf")
if err != nil {
log.Fatal(err)
}
defer f.Close()
d := osmpbf.NewDecoder(f)
err = d.Start(runtime.GOMAXPROCS(-1)) // use several goroutines for faster decoding
if err != nil {
log.Fatal(err)
}
fmt.Printf("Start %v\n", time.Now())
//var nodes map[int64][2]float64
//*
var nodes = make(map[int64][2]float64)
var nc, wc, rc uint64
var cnc, cwc, crc uint64
for {
if v, _, err := d.Decode(); err == io.EOF {
break
} else if err != nil {
log.Fatal(err)
} else {
switch v := v.(type) {
case *osmpbf.Node:
// Process Node v.
if v.Lat > min[0] && v.Lat < max[0] && v.Lon > min[1] && v.Lon < max[1] {
nodes[v.ID] = [2]float64{v.Lat, v.Lon}
cnc++
}
nc++
case *osmpbf.Way:
// Process Way v.
//if v.Tags["highway"] == "residential" {
// fmt.Printf("%v", v.Tags)
//}
//fmt.Printf("\n%v\n", v)
//fmt.Println(v.Tags)
//if val, ok := nodes["foo"]; ok { }
for _, node := range v.NodeIDs {
if _, ok := nodes[node]; ok {
cwc++
}
}
wc++
break
case *osmpbf.Relation:
// Process Relation v.
rc++
default:
log.Fatalf("unknown type %T\n", v)
}
if (nc+wc+rc)%1000000 == 0 {
fmt.Printf("Nodes: %dk, Ways: %dk, Relations: %dk @", nc/1000, wc/1000, rc/1000)
fmt.Println(time.Now())
}
}
}
fmt.Printf("Nodes: %d, Ways: %d, Relations: %d\n", nc, wc, rc)
fmt.Printf("Nodes: %d, Ways: %d, Relations: %d\n", cnc, cwc, crc)
//*/
fmt.Println(time.Now())
//MakeSVG()
}