Web Coverage Service (WCS)

class wlts.datasources.wcs.WCSDataSource(id, ds_info)

This class implemente a WCSDataSource.

__init__(id, ds_info)

Create a WCSDataSource.

Parameters

  • id (str) – the datasource identifier.

  • ds_info (dict) – A datasource information as a dictionary.

check_image(workspace: str, ft_name: str) → None

Utility to check image existence in wcs.

Parameters

ft_name (str) – The image name.

property host_information

Returns the host.

get_type() → str

Return the datasource type.

organize_trajectory(result, time, classification_class, geom, geom_flag, temporal, language, workspace=None)

Organize trajectory.

get_trajectory(**kwargs)

Return a trajectory instance for wcs datasource.

Parameters

**kwargs – The keyword arguments.

class wlts.datasources.wcs.WCS(host, **kwargs)

This class implements the WCS client..

__init__(host, **kwargs)

Create a WCS client attached to the given host address (an URL).

Parameters

  • host (str) – the server URL.

  • **kwargs – The keyword arguments with credentials to access WFS.

property host_information

Returns the host.

open_image(url, long, lat)

Return the image value for a location.

Parameters

  • url (str) – URL for the WCS server.

  • long (int/float) – A longitude value according to EPSG:4326.

  • lat (int/float) – A latitude value according to EPSG:4326.

get_image(image, srid, min_x, max_x, min_y, max_y, column, row, time, x, y)

Mount the url for get a image(coverage) from server based on GetCoverage request.

Parameters

  • image (str) – The image(coverage) name to retrieve from service.

  • srid (int) – The CRS of the image(coverage).

  • min_x (int/float) – The min x the extent of the image(coverage)

  • max_x (int/float) – The max x the extent of the image(coverage)

  • min_y (int/float) – The min y the extent of the image(coverage)

  • max_y (int/float) – The max y the extent of the image(coverage)

  • column (int) – Grid resolution.

  • row (int) – Grid resolution.

  • time (str) – Time dimension.

  • x (int/float) – The location x to retrieve.

  • x – The location y to retrieve.

list_image() → List[str]

Returns the list of all available image in service.