OptionalcacheMemory budget, in bytes, for decoded chunks and name blocks; least recently used ones are dropped past it. Default 64 MiB. A worldwide file decodes to about 1 GB in all, its largest chunk to about 3 MB, so a budget much below that makes lookups scattered across the world re-decode often. 0 disables caching, except for the one most recently used chunk.
OptionalinflaterHow compressed blocks are inflated. Default streamInflater, which
works everywhere; on Node.js, nodeInflater from ./node is
several times faster.
OptionalsearchA search index (Appendix B) for search(); see useSearchIndex().
Not read until the first search that can use it.
OptionallocateA locate index (Appendix C) for locate(); see useLocateIndex().
Not read until the first locate().
Options for
CGeoDataReader.open().