crs

• Coordinates Reference System (CRS) class

Source code

General Attributes and Methods

class pyTMD.crs

Coordinate Reference System transformations for tide models

Attributes:

name: str

Projection name

transformer: obj

pyproj transformer for changing coordinate reference system

convert(i1: ndarray, i2: ndarray, PROJ: str | dict, BF: str, EPSG: int | str = 4326)

Converts points to and from Coordinates Reference Systems (CRS)

Parameters:

i1: np.ndarray

Input x-coordinates

i2: np.ndarray

Input y-coordinates

PROJ: str or dict

Spatial reference system for coordinate transformations

BF: str

Direction of transformation

• 'B': backwards

• 'F': forwards

EPSG: int or str, default 4326 (WGS84 Latitude/Longitude)

input ('F') or output ('B') coordinate system

Returns:

o1: np.ndarray

Output transformed x-coordinates

o2: np.ndarray

Output transformed y-coordinates

get(PROJ: str | dict)

Tries to get the coordinate reference system

Parameters:

PROJ: str or dict

Spatial reference system for coordinate transformations

transform(i1: ndarray, i2: ndarray, EPSG: int | str = 4326, **kwargs)

Performs Coordinates Reference System (CRS) transformations

Parameters:

i1: np.ndarray

Input x-coordinates

i2: np.ndarray

Input y-coordinates

EPSG: int or str, default 4326 (WGS84 Latitude/Longitude)

input ('F') or output ('B') coordinate system

**kwargs: dict

Keyword arguments for the transformation

Returns:

o1: np.ndarray

Output transformed x-coordinates

o2: np.ndarray

Output transformed y-coordinates

from_input(PROJECTION: int | str | dict)

Attempt to retrieve the Coordinate Reference System

Parameters:

PROJECTION: int, str or dict

Coordinate Reference System

property direction

pyproj direction of the coordinate transform

property is_geographic

Check if the coordinate reference system is geographic