mongodb - Mongo geospatial index options -


in mongo geospatial index documentation there parameter called "distancemultiplier", there's no explanation.

anyone know does?

it scales distance returned "dis" in result:

> db.runcommand({geonear: 'places', near: [50, 50]}) {     "ns" : "geotest.places",     "near" : "1100110000001111110000001111110000001111110000001111",     "results" : [         {             "dis" : 7.853626559350774,             "obj" : {                 "_id" : objectid("4d4b20890da611546bcbdf96"),                 "loc" : {                     "lat" : 42.739037,                     "long" : 52.992964                 },                 "category" : [                     "1"                 ]             }         },  > db.runcommand({geonear: 'places', near: [50, 50], distancemultiplier: 4}) {     "ns" : "geotest.places",     "near" : "1100110000001111110000001111110000001111110000001111",     "results" : [         {             "dis" : 31.414506237403096,             "obj" : {                 "_id" : objectid("4d4b20890da611546bcbdf96"),                 "loc" : {                     "lat" : 42.739037,                     "long" : 52.992964                 },                 "category" : [                     "1"                 ]             }         },

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