HilbertIndex Class |  |
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HilbertIndex provides a location, in the form of an integer value,
when given a LatLon or BoundingBox.
Inheritance HierarchyNamespace: Telogis.GeoBase.Indexes
Assembly: geobase.net (in geobase.net.dll) Version: 4.99.0.0
SyntaxThe HilbertIndex type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | HilbertIndex | Initializes a new instance of the HilbertIndex class |
Methods| Name | Description | |
|---|---|---|
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetKey(BoundingBox) |
Retrieves the index key value for a BoundingBox.
|
| GetKey(LatLon) |
Retrieves the index key value for a LatLon.
|
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| Query(BoundingBox, Int32) |
Retrieves ranges of index key values for a BoundingBox up to the maximum number of ranges specified.
|
| Query(LatLon, Int32) |
Retrieves ranges of index key values for a LatLon up to the maximum number of ranges specified.
|
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
RemarksRelated articles: Indexing External Spatial Data.
Examples
Generating a numeric value for a LatLon point:
or a BoundingBox area:
C#
// Create a HilbertIndex object HilbertIndex hilb_index = new HilbertIndex(); // Create a LatLon LatLon lat_lon = new LatLon(33, -118); // Generate a numeric value for the LatLon ulong ll_key = hilb_index.GetKey(lat_lon);
C#
// Create a HilbertIndex object HilbertIndex hilb_index = new HilbertIndex(); // Create a BoundingBox BoundingBox b_box = new BoundingBox(); b_box.Add(new LatLon(33.976473, -118.348352)); b_box.Add(new LatLon(33.943459, -118.325526)); // Generate a numeric value for the BoundingBox ulong box_key = hilb_index.GetKey(b_box);
See Also