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## 8.4.4 Indexing Query Modifiers 

<img src='content_image/761017.jpg'>

## 8.4.5 Other Index References 

GeoJSON Objects (page 553) Supported GeoJSON objects. 

Text Search Languages (page 556) Supported languages for text indexes (page 500) and $text query operations. 

## GeoJSON Objects 

## Overview 

MongoDB supports the GeoJSON object types listed on this page. 

To specify GeoJSON data, use a document with a type field specifying the GeoJSON object type and a coordinates field specifying the object’s coordinates: 

{ type: "<GeoJSON type>" , coordinates: <coordinates> } 

Important: Always list coordinates in longitude, latitude order. 

The default coordinate reference system for GeoJSON uses the WGS84 datum. 

## Point 

New in version 2.4. 

The following example specifies a GeoJSON Point$^{10}$: 

{ type: "Point", coordinates: [ 40, 5 ] } 

## LineString 

New in version 2.4. 

The following example specifies a GeoJSON LineString$^{11}$: 

{ type: "LineString", coordinates: [ [ 40, 5 ], [ 41, 6 ] ] } 

