Support hash table for fast operations.
Hash-based sparse matrix with an efficient O(1) indexing and update operations.
Hash-based sparse matrix with an efficient O(1) indexing and update operations.
Ideal for sparse or dense data, particularly with many clusters that are tightly
packed together. For spatial queries on sparse data, it is usually better to use
QuadMatrix
.
A collection that is a set and a sequence.
Quad-based matrix for spatial querying of sparse data.