Esempio n. 1
0
func (rw *RelationWriter) loop() {
	geos := geos.NewGeos()
	geos.SetHandleSrid(rw.srid)
	defer geos.Finish()

NextRel:
	for r := range rw.rel {
		rw.progress.AddRelations(1)
		err := rw.osmCache.Ways.FillMembers(r.Members)
		if err != nil {
			if err != cache.NotFound {
				log.Warn(err)
			}
			continue NextRel
		}
		for _, m := range r.Members {
			if m.Way == nil {
				continue
			}
			err := rw.osmCache.Coords.FillWay(m.Way)
			if err != nil {
				if err != cache.NotFound {
					log.Warn(err)
				}
				continue NextRel
			}
			rw.NodesToSrid(m.Way.Nodes)
		}

		// BuildRelation updates r.Members but we need all of them
		// for the diffCache
		allMembers := r.Members

		//if relation type is route then proccess relation ways
		if r.Tags["type"] == "route" {
			if matches := rw.lineMatcher.MatchRelation(r); len(matches) > 0 {
				for _, member := range allMembers {
					if member.Way == nil {
						continue
					}
					//switch way tags to relation tags and insert way
					originalTags := member.Way.Tags
					member.Way.Tags = r.Tags
					err := rw.buildAndInsertWay(geos, member.Way, matches, false)
					if err != nil {
						if errl, ok := err.(ErrorLevel); !ok || errl.Level() > 0 {
							log.Warn(err)
						}
						continue NextRel
					}
					//return back original way Tags
					member.Way.Tags = originalTags
				}
			}
		}

		// prepare relation first (build rings and compute actual
		// relation tags)
		prepedRel, err := geomp.PrepareRelation(r, rw.srid, rw.maxGap)
		if err != nil {
			if errl, ok := err.(ErrorLevel); !ok || errl.Level() > 0 {
				log.Warn(err)
			}
			continue NextRel
		}

		// check for matches before building the geometry
		matches := rw.polygonMatcher.MatchRelation(r)
		if len(matches) == 0 {
			continue NextRel
		}

		// build the multipolygon
		geom, err := prepedRel.Build()
		if err != nil {
			if geom.Geom != nil {
				geos.Destroy(geom.Geom)
			}
			if errl, ok := err.(ErrorLevel); !ok || errl.Level() > 0 {
				log.Warn(err)
			}
			continue NextRel
		}

		if rw.limiter != nil {
			start := time.Now()
			parts, err := rw.limiter.Clip(geom.Geom)
			if err != nil {
				log.Warn(err)
				continue NextRel
			}
			if duration := time.Now().Sub(start); duration > time.Minute {
				log.Warnf("clipping relation %d to -limitto took %s", r.Id, duration)
			}
			for _, g := range parts {
				rel := element.Relation(*r)
				rel.Id = rw.relId(r.Id)
				geom = geomp.Geometry{Geom: g, Wkb: geos.AsEwkbHex(g)}
				err := rw.inserter.InsertPolygon(rel.OSMElem, geom, matches)
				if err != nil {
					if errl, ok := err.(ErrorLevel); !ok || errl.Level() > 0 {
						log.Warn(err)
					}
					continue
				}
			}
		} else {
			rel := element.Relation(*r)
			rel.Id = rw.relId(r.Id)
			err := rw.inserter.InsertPolygon(rel.OSMElem, geom, matches)
			if err != nil {
				if errl, ok := err.(ErrorLevel); !ok || errl.Level() > 0 {
					log.Warn(err)
				}
				continue
			}
		}

		for _, m := range mapping.SelectRelationPolygons(rw.polygonMatcher, r) {
			err = rw.osmCache.InsertedWays.PutWay(m.Way)
			if err != nil {
				log.Warn(err)
			}
		}
		if rw.diffCache != nil {
			rw.diffCache.Ways.AddFromMembers(r.Id, allMembers)
			for _, member := range allMembers {
				if member.Way != nil {
					rw.diffCache.Coords.AddFromWay(member.Way)
				}
			}
		}
		if rw.expireor != nil {
			for _, m := range allMembers {
				if m.Way != nil {
					expire.ExpireNodes(rw.expireor, m.Way.Nodes)
				}
			}
		}
		geos.Destroy(geom.Geom)
	}
	rw.wg.Done()
}
Esempio n. 2
0
func handleMultiPolygon(rw *RelationWriter, r *element.Relation, geos *geosp.Geos) bool {
	// prepare relation first (build rings and compute actual
	// relation tags)
	prepedRel, err := geomp.PrepareRelation(r, rw.srid, rw.maxGap)
	if err != nil {
		if errl, ok := err.(ErrorLevel); !ok || errl.Level() > 0 {
			log.Warn(err)
		}
		return false
	}

	// check for matches befor building the geometry
	matches := rw.polygonMatcher.MatchRelation(r)
	if matches == nil {
		return false
	}

	// build the multipolygon
	geom, err := prepedRel.Build()
	if geom.Geom != nil {
		defer geos.Destroy(geom.Geom)
	}
	if err != nil {
		if errl, ok := err.(ErrorLevel); !ok || errl.Level() > 0 {
			log.Warn(err)
		}
		return false
	}

	if rw.limiter != nil {
		start := time.Now()
		parts, err := rw.limiter.Clip(geom.Geom)
		if err != nil {
			log.Warn(err)
			return false
		}
		if duration := time.Now().Sub(start); duration > time.Minute {
			log.Warnf("clipping relation %d to -limitto took %s", r.Id, duration)
		}
		for _, g := range parts {
			rel := element.Relation(*r)
			rel.Id = rw.relId(r.Id)
			geom = geomp.Geometry{Geom: g, Wkb: geos.AsEwkbHex(g)}
			err := rw.inserter.InsertPolygon(rel.OSMElem, geom, matches)
			if err != nil {
				if errl, ok := err.(ErrorLevel); !ok || errl.Level() > 0 {
					log.Warn(err)
				}
				continue
			}
		}
	} else {
		rel := element.Relation(*r)
		rel.Id = rw.relId(r.Id)
		err := rw.inserter.InsertPolygon(rel.OSMElem, geom, matches)
		if err != nil {
			if errl, ok := err.(ErrorLevel); !ok || errl.Level() > 0 {
				log.Warn(err)
			}
			return false
		}
	}

	for _, m := range mapping.SelectRelationPolygons(rw.polygonMatcher, r) {
		err = rw.osmCache.InsertedWays.PutWay(m.Way)
		if err != nil {
			log.Warn(err)
		}
	}
	return true
}