コード例 #1
0
        /// <summary>
        /// Splits the given tags into a normalized version, profile tags, and the rest in metatags.
        /// </summary>
        public static bool Normalize(IAttributeCollection tags, IAttributeCollection profileTags, VehicleCache vehicleCache)
        {
            var normalizedTags = new HashSet <string>(new string[] { "highway", "maxspeed", "oneway", "oneway:bicycle",
                                                                     "cycleway", "junction", "access" });

            foreach (var vehicle in vehicleCache.Vehicles)
            {
                foreach (var vehicleType in vehicle.VehicleTypes)
                {
                    normalizedTags.Add(vehicleType);
                }
            }

            string highway;

            if (!tags.TryGetValue("highway", out highway))
            { // there is no highway tag, don't continue the search.
                return(false);
            }

            // add the highway tag.
            profileTags.AddOrReplace("highway", highway);

            // normalize maxspeed tags.
            tags.NormalizeMaxspeed(profileTags);

            // normalize oneway tags.
            tags.NormalizeOneway(profileTags);
            tags.NormalizeOnewayBicycle(profileTags);

            // normalize cyclceway.
            tags.NormalizeCycleway(profileTags);

            // normalize junction=roundabout tag.
            tags.NormalizeJunction(profileTags);

            // normalize access tags.
            foreach (var vehicle in vehicleCache.Vehicles)
            {
                tags.NormalizeAccess(vehicleCache, vehicle, highway, profileTags);
            }

            // add whitelisted tags but only when they haven't been considered for normalization.
            foreach (var vehicle in vehicleCache.Vehicles)
            {
                foreach (var key in vehicle.ProfileWhiteList)
                {
                    var value = string.Empty;
                    if (tags.TryGetValue(key, out value))
                    {
                        if (!normalizedTags.Contains(key))
                        {
                            profileTags.AddOrReplace(key, value);
                        }
                    }
                }
            }

            return(true);
        }