Example #1
0
func handleRelationMembers(rw *RelationWriter, r *element.Relation, geos *geosp.Geos) bool {
	relMemberMatches := rw.relationMemberMatcher.MatchRelation(r)
	if relMemberMatches == nil {
		return false
	}
	for i, m := range r.Members {
		if m.Type == element.RELATION {
			mrel, err := rw.osmCache.Relations.GetRelation(m.Id)
			if err != nil {
				if err != cache.NotFound {
					log.Warn(err)
				}
				return false
			}
			r.Members[i].Elem = &mrel.OSMElem
		} else if m.Type == element.NODE {
			nd, err := rw.osmCache.Nodes.GetNode(m.Id)
			if err != nil {
				if err == cache.NotFound {
					nd, err = rw.osmCache.Coords.GetCoord(m.Id)
					if err != nil {
						if err != cache.NotFound {
							log.Warn(err)
						}
						return false
					}
				} else {
					log.Warn(err)
					return false
				}
			}
			rw.NodeToSrid(nd)
			r.Members[i].Node = nd
			r.Members[i].Elem = &nd.OSMElem
		}
	}

	for _, m := range r.Members {
		var g *geosp.Geom
		var err error
		if m.Node != nil {
			g, err = geomp.Point(geos, *m.Node)
		} else if m.Way != nil {
			g, err = geomp.LineString(geos, m.Way.Nodes)
		}

		if err != nil {
			log.Warn(err)
			return false
		}

		var gelem geomp.Geometry
		if g == nil {
			g = geos.FromWkt("POLYGON EMPTY")
			gelem = geomp.Geometry{Geom: g, Wkb: geos.AsEwkbHex(g)}
		} else {
			gelem, err = geomp.AsGeomElement(geos, g)
			if err != nil {
				log.Warn(err)
				return false
			}
		}
		rel := element.Relation(*r)
		rel.Id = rw.relId(r.Id)
		rw.inserter.InsertRelationMember(rel, m, gelem, relMemberMatches)
	}
	return true
}