public double this[IGeoItem node1, IGeoItem node2]
 {
     get
     {
         return(node1.Position.GetDistance(node2.Position));
     }
 }
Esempio n. 2
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 public void Merge(IGeoItem item, double distance)
 {
     Items.Add(item, distance);
     Position = Items.Count == 1 ? item.Position : calculateCenter(item);
     Radius   = Items.Count == 1 ? 0 : calculateRadius();
     Count    = item is Cluster ? Count + (item as Cluster).Count : Count + 1;
 }
 public IEnumerable <IGeoItem> GetNeiboursInRadius(IGeoItem node, double radius)
 {
     return(from n in nodes
            let t = new Tuple <IGeoItem, double>(n, node.Position.GetDistance(n.Position))
                    where (t.Item1 != node) && t.Item2 < radius
                    orderby t.Item2
                    select t.Item1);
 }
 public IEnumerable <Tuple <IGeoItem, double> > GetEdgesFor(IGeoItem node)
 {
     return(from n in nodes
            where (n != node)
            let t = new Tuple <IGeoItem, double>(n, n.Position.GetDistance(node.Position))
                    orderby t.Item2
                    select t);
 }
Esempio n. 5
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        private Windows.Devices.Geolocation.Geopoint calculateCenter(IGeoItem newItem)
        {
            var countB = newItem is Cluster ? (newItem as Cluster).count : 1;
            var total  = this.Count + countB;

            return(new Geopoint(new BasicGeoposition()
            {
                Longitude = (this.Position.Position.Longitude * this.Count + newItem.Position.Position.Longitude * countB) / total,
                Latitude = (this.Position.Position.Latitude * this.Count + newItem.Position.Position.Latitude * countB) / total,
            }));
        }
Esempio n. 6
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        private void regrateCenter(IGeoItem item)
        {
            var removedCount = item is Cluster ? (item as Cluster).count : 1;

            if (removedCount != count)
            {
                this.Position = new Geopoint(new BasicGeoposition()
                {
                    Longitude = (this.Position.Position.Longitude * this.Count - item.Position.Position.Longitude * removedCount) / (this.Count - removedCount),
                    Latitude  = (this.Position.Position.Latitude * this.Count - item.Position.Position.Latitude * removedCount) / (this.Count - removedCount),
                });
            }
        }
Esempio n. 7
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        public bool Contains(IGeoItem itemToFind)
        {
            bool result = false;

            foreach (var item in Items.Keys)
            {
                if (item is Cluster)
                {
                    result = (item as Cluster).Contains(itemToFind);
                }
                else
                {
                    result = item == itemToFind;
                }
                if (result)
                {
                    break;
                }
            }
            return(result);
        }
Esempio n. 8
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 public IEnumerable <IGeoItem> GetNeiboursInRadius(IGeoItem node, double radius)
 {
     return(viewArea.GetNeiboursInRadius(node, radius));
 }