## A geometry is a GeoJSON object where the type member's value is one of: "Point", "MultiPoint", "LineString", "MultiLineString", "Polygon", "MultiPolygon", or "GeometryCollection". The case of the type member values must be as shown here.

## A geometry is a GeoJSON object where the type member's value is one of: "Point", "MultiPoint", "LineString", "MultiLineString", "Polygon", "MultiPolygon", or "GeometryCollection". The case of the type member values must be as shown here.

### A GeoJSON geometry object of any type other than "GeometryCollection" must have a member with the name "coordinates". The value of the coordinates member is always an array (referred to as the coordinates array below). The structure for the elements in this array are determined by the type of geometry.

### A GeoJSON geometry object of any type other than "GeometryCollection" must have a member with the name "coordinates". The value of the coordinates member is always an array (referred to as the coordinates array below). The structure for the elements in this array are determined by the type of geometry.

#### For type "Point", each element in the coordinates array is a number representing the point coordinate in one dimension. There must be at least two elements, and may be more. The order of elements MUST follow x, y, z order (or longitude, latitude, altitude for coordinates in decimal degrees). Any number of additional dimensions are allowed, and interpretation and meaning of these coordinates is beyond the scope of this specification.

#### For type "Point", each element in the coordinates array is a number representing the point coordinate in one dimension. There must be at least two elements, and may be more. The order of elements must follow x, y, z order (or longitude, latitude, altitude for coordinates in a geographic coordinate reference system). Any number of additional dimensions are allowed, and interpretation and meaning of these coordinates is beyond the scope of this specification.

#### For type "MultiPoint", each element in the coordinates array is a coordinates array as described for type "Point".

#### For type "MultiPoint", each element in the coordinates array is a coordinates array as described for type "Point".

#### For type "LineString", each element in the coordinates array is a coordinates array as described for type "Point".  The coordinates array for a LineString must have two or more elements.  A LinearRing is a special case of type LineString where the first and last elements in the coordinates array are equivalent (they represent equivalent points).  Though a LinearRing is not explicitly represented as a GeoJSON geometry type, it is referred to in the Polygon geometry type definition.

#### For type "LineString", each element in the coordinates array is a coordinates array as described for type "Point".  The coordinates array for a LineString must have two or more elements.  A LinearRing is a special case of type LineString where the first and last elements in the coordinates array are equivalent (they represent equivalent points).  Though a LinearRing is not explicitly represented as a GeoJSON geometry type, it is referred to in the Polygon geometry type definition.

##### The properties object should contain one member: "url", that specifies a URL for the spatial reference that can be dereferenced by the client.  

##### The properties object should contain one member: "url", that specifies a URL for the spatial reference that can be dereferenced by the client.  

##### An optional member, "type", is recommended, specifying the type of information available at the URL. This may be any string: suggestions are "proj4", "ogcwkt", "esriwkt", though others can be used.  Applications may use this "type" member to determine the type of information that is available at the URL.

##### An optional member, "type", is recommended, specifying the type of information available at the URL. This may be any string: suggestions are "proj4", "ogcwkt", "esriwkt", though others can be used.  Applications may use this "type" member to determine the type of information that is available at the URL.