Understanding GeoJSON objects

GeoJSON objects are needed in order to conduct geospatial queries involving a spherical model. These object types are modeled after RFC 7946, The GeoJSON Format, published in August 2016. Here is the generic syntax for creating a MongoDB GeoJSON object:

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

Please note that, depending on the GeoJSON object type, there may be more than one pair of coordinates. MongoDB supports a number of these objects, summarized here:

• Point:
• Definition: A distinct location represented by two coordinates on an imaginary X-Y grid.
• Syntax:

 <field>: { type: "Point", coordinates: [ x, y ] }

• LineString:
• Definition: A set of points in a straight line starting at x1,y1 and ending at x2,y2.
• Syntax:

 <field>: { type: "LineString", coordinates: [[x1,y1], [x2,y2]] }

• Polygon:
• Definition: An array of GeoJSON LinearRing coordinate arrays. LinearRing arrays are LineString...