data_sources.topographic

Topographic data sources and functions

data_sources.topographic.topographic_model

Model for Topogrpahic features

Topographic Objects

class Topographic(DataSourceOutput)

Class to store topographic data as a xr.Dataset with some validation

TopographicML Objects

class TopographicML(DataSourceOutputML)

Topographic/elevation map features.

height

@property
def height()

The height of the topographic image

width

@property
def width()

The width of the topographic image

x_coordinates_shape

@validator("topo_x_coords")
def x_coordinates_shape(cls, v, values)

Validate 'topo_x_coords'

y_coordinates_shape

@validator("topo_y_coords")
def y_coordinates_shape(cls, v, values)

Validate 'topo_y_coords'

fake

@staticmethod
def fake(batch_size, image_size_pixels)

Create fake data

from_xr_dataset

@staticmethod
def from_xr_dataset(xr_dataset)

Change xr dataset to model. If data does not exist, then return None

data_sources.topographic.topographic_data_source

Topological DataSource

TopographicDataSource Objects

@dataclass
class TopographicDataSource(ImageDataSource)

Add topographic/elevation map features.

__post_init__

def __post_init__(image_size_pixels: int, meters_per_pixel: int)

Post init

get_example

def get_example(t0_dt: pd.Timestamp, x_meters_center: Number, y_meters_center: Number) -> Topographic

Get a single example

Arguments:

• t0_dt - Current datetime for the example, unused
• x_meters_center - Center of the example in meters in the x direction in OSGB coordinates
• y_meters_center - Center of the example in meters in the y direction in OSGB coordinates

Returns:

Example containing topographic data for the selected area