86 lines
1.7 KiB
Go
86 lines
1.7 KiB
Go
package writer
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import (
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"imposm3/cache"
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"imposm3/database"
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"imposm3/element"
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"imposm3/geom"
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"imposm3/geom/geos"
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"imposm3/mapping"
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"imposm3/proj"
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"imposm3/stats"
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"log"
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"sync"
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)
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type NodeWriter struct {
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OsmElemWriter
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nodes chan *element.Node
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tagMatcher *mapping.TagMatcher
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}
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func NewNodeWriter(osmCache *cache.OSMCache, nodes chan *element.Node,
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insertBuffer database.RowInserter, tagMatcher *mapping.TagMatcher, progress *stats.Statistics,
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srid int) *OsmElemWriter {
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nw := NodeWriter{
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OsmElemWriter: OsmElemWriter{
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osmCache: osmCache,
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progress: progress,
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wg: &sync.WaitGroup{},
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insertBuffer: insertBuffer,
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srid: srid,
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},
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nodes: nodes,
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tagMatcher: tagMatcher,
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}
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nw.OsmElemWriter.writer = &nw
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return &nw.OsmElemWriter
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}
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func (nw *NodeWriter) loop() {
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geos := geos.NewGeos()
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geos.SetHandleSrid(nw.srid)
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defer geos.Finish()
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for n := range nw.nodes {
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nw.progress.AddNodes(1)
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if matches := nw.tagMatcher.Match(&n.Tags); len(matches) > 0 {
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proj.NodeToMerc(n)
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if nw.expireTiles != nil {
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nw.expireTiles.ExpireFromNodes([]element.Node{*n})
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}
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point, err := geom.Point(geos, *n)
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if err != nil {
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if err, ok := err.(ErrorLevel); ok {
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if err.Level() <= 0 {
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continue
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}
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}
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log.Println(err)
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continue
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}
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n.Geom, err = geom.AsGeomElement(geos, point)
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if err != nil {
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log.Println(err)
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continue
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}
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if nw.limiter != nil {
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parts, err := nw.limiter.Clip(n.Geom.Geom)
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if err != nil {
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log.Println(err)
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continue
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}
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if len(parts) >= 1 {
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nw.insertMatches(&n.OSMElem, matches)
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}
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} else {
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nw.insertMatches(&n.OSMElem, matches)
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}
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}
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}
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nw.wg.Done()
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}
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