CoordRefSys class
Metadata about a coordinate reference system (CRS) identified and specified by id.
NOTE: The current version of this class does not yet provide very much CRS metadata, but in future this might also provide more information.
- Annotations
-
- @immutable
Constructors
- CoordRefSys.from({CoordRefSys? coordRefSys, String? crs})
-
The coordinate reference system resolved in this order:
factory
- CoordRefSys.id(String id)
-
Metadata about a coordinate reference system (CRS) identified and
specified by id.
const
- CoordRefSys.normalized(String id)
-
Metadata about a coordinate reference system (CRS) identified and
specified by the normalized identifier of
id.
Properties
- axisOrder → AxisOrder?
-
Try to resolve the axis order (as a CRS authority has specified it) of
coordinate values in position and point representations for this
coordinate reference system identified by id.
no setter
- epsg → String?
-
Returns an EPSG identifier according to the common
EPSG:{code}template for id if the coordinate reference system is recognized by the EPSG register.no setter - epsgCode → int?
-
Returns an EPSG code according to the common
EPSG:{code}template for id if the coordinate reference system is recognized by the EPSG register.no setter - hashCode → int
-
The hash code for this object.
no setteroverride
- id → String
-
The coordinate reference system (CRS) identifier.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
isGeographic(
{bool? wgs84, AxisOrder? order}) → bool - Returns true if coordinate reference system identified by id represents geographic coordinates.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
swapXY(
{GeoRepresentation? logic}) → bool - Whether x and y coordinates read from (or written to) external data representation should be swapped for the coordinate reference system identified by id before using in internal data structures of this package.
-
toString(
) → String -
A string representation of this object.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
override
Constants
- CRS84 → const CoordRefSys
- The coordinate reference system identified by 'http://www.opengis.net/def/crs/OGC/1.3/CRS84'.
- CRS84h → const CoordRefSys
- The coordinate reference system identified by 'http://www.opengis.net/def/crs/OGC/1.3/CRS84h'.
- EPSG_3395 → const CoordRefSys
- The coordinate reference system identified by 'http://www.opengis.net/def/crs/EPSG/0/3395'.
- EPSG_3857 → const CoordRefSys
- The coordinate reference system identified by 'http://www.opengis.net/def/crs/EPSG/0/3857'.
- EPSG_4258 → const CoordRefSys
- The coordinate reference system identified by 'http://www.opengis.net/def/crs/EPSG/0/4258'.
- EPSG_4326 → const CoordRefSys
- The coordinate reference system identified by 'http://www.opengis.net/def/crs/EPSG/0/4326'.