Source code for eoreader.products.sar.iceye_product

# -*- coding: utf-8 -*-
# Copyright 2022, SERTIT-ICube - France, https://sertit.unistra.fr/
# This file is part of eoreader project
#     https://github.com/sertit/eoreader
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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#     http://www.apache.org/licenses/LICENSE-2.0
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"""
ICEYE products.
Take a look
`here <https://www.iceye.com/hubfs/Downloadables/ICEYE-Level-1-Product-Specs-2019.pdf>`_.
"""
import logging
from datetime import datetime
from enum import unique
from pathlib import Path
from typing import Union

import geopandas as gpd
from cloudpathlib import CloudPath
from lxml import etree
from sertit import files, vectors
from sertit.misc import ListEnum

from eoreader import cache
from eoreader.bands import SarBandNames as sab
from eoreader.exceptions import InvalidProductError, InvalidTypeError
from eoreader.keywords import ICEYE_USE_SLC
from eoreader.products import SarProduct, SarProductType
from eoreader.products.product import OrbitDirection
from eoreader.utils import DATETIME_FMT, EOREADER_NAME

LOGGER = logging.getLogger(EOREADER_NAME)


[docs]@unique class IceyeProductType(ListEnum): """ ICEYE products types. Take a look `here <https://www.iceye.com/hubfs/Downloadables/ICEYE-Level-1-Product-Specs-2019.pdf>`_. """ GRD = "GRD" """ Level-1 Ground Range Detected (GRD) """ SLC = "SLC" """ Level-1 Single Look Complex (SLC) """
# Not released yet # ORTHO = "ORTHO" # """ ORTHO """
[docs]@unique class IceyeSensorMode(ListEnum): """ ICEYE imaging mode. Take a look `here <https://www.iceye.com/hubfs/Downloadables/ICEYE-Level-1-Product-Specs-2019.pdf>`_. """ SM = "stripmap" """SM - Stripmap, StripmapWide, StripmapHI""" SL = "spotlight" """SL - Spotlight""" SC = "scan" """SC - ScanSAR"""
[docs]class IceyeProduct(SarProduct): """ Class for ICEYE Products Take a look `here <https://www.iceye.com/hubfs/Downloadables/ICEYE-Level-1-Product-Specs-2019.pdf>`_. """
[docs] def __init__( self, product_path: Union[str, CloudPath, Path], archive_path: Union[str, CloudPath, Path] = None, output_path: Union[str, CloudPath, Path] = None, remove_tmp: bool = False, **kwargs, ) -> None: self._use_slc = kwargs.pop(ICEYE_USE_SLC, None) # Initialization from the super class super().__init__(product_path, archive_path, output_path, remove_tmp, **kwargs)
def _get_resolution(self) -> float: """ Get product default resolution (in meters) See here <here](https://www.iceye.com/hubfs/Downloadables/ICEYE_SAR_Product_Guide_2021_V4.0.pdf>`_ for more information (table B.3). """ if self.sensor_mode == IceyeSensorMode.SM: def_res = 3.0 elif self.sensor_mode == IceyeSensorMode.SL: def_res = 1.0 elif self.sensor_mode == IceyeSensorMode.SC: def_res = 15.0 else: raise InvalidProductError(f"Unknown sensor mode: {self.sensor_mode}") return def_res def _set_instrument(self) -> None: """ Set instrument ICEYE: https://earth.esa.int/eogateway/missions/iceye """ self.instrument = "SAR X-band" def _pre_init(self, **kwargs) -> None: """ Function used to pre_init the products (setting needs_extraction and so on) """ self._band_folder = self.path # SNAP cannot process its archive self.needs_extraction = True # Its original filename is its name self._use_filename = True # Post init done by the super class super()._pre_init(**kwargs) def _post_init(self, **kwargs) -> None: """ Function used to post_init the products (setting product-type, band names and so on) """ # Private attributes if self._use_slc: self.snap_filename = str(next(self.path.glob("*ICEYE*SLC*.xml")).name) self._raw_band_regex = "*ICEYE*SLC*.h5" else: self.snap_filename = str(next(self.path.glob("*ICEYE*GRD*.xml")).name) self._raw_band_regex = "*ICEYE*GRD*.tif" # Post init done by the super class super()._post_init(**kwargs)
[docs] @cache def wgs84_extent(self) -> gpd.GeoDataFrame: """ Get the WGS84 extent of the file before any reprojection. This is useful when the SAR pre-process has not been done yet. .. code-block:: python >>> from eoreader.reader import Reader >>> path = r"1011117-766193" >>> prod = Reader().open(path) >>> prod.wgs84_extent() geometry 0 POLYGON ((108.09797 15.61011, 108.48224 15.678... Returns: gpd.GeoDataFrame: WGS84 extent as a gpd.GeoDataFrame """ # Open extent KML file try: extent_file = next(self.path.glob("*ICEYE*QUICKLOOK*.kml")) except IndexError as ex: raise InvalidProductError( f"Extent file (*.kml) not found in {self.path}" ) from ex extent_wgs84 = vectors.read(extent_file).envelope return gpd.GeoDataFrame(geometry=extent_wgs84.geometry, crs=extent_wgs84.crs)
def _set_product_type(self) -> None: """Set products type""" # Get MTD XML file root, nsmap = self.read_mtd() # Some ICEYE product metadata has a namespace some don't namespace = nsmap.get(None, "") # Open identifier prod_type = root.findtext(f".//{namespace}product_level") if not prod_type: raise InvalidProductError("mode not found in metadata!") self.product_type = IceyeProductType.from_value(prod_type) if self.product_type == IceyeProductType.GRD: self.sar_prod_type = SarProductType.GDRG elif self.product_type == IceyeProductType.SLC: self.sar_prod_type = SarProductType.CPLX else: raise NotImplementedError( f"{self.product_type.value} product type is not available for {self.name}" ) def _set_sensor_mode(self) -> None: """ Get products type from S2 products name (could check the metadata too) """ # Get MTD XML file root, nsmap = self.read_mtd() # Some ICEYE product metadata has a namespace some don't namespace = nsmap.get(None, "") # Open identifier imaging_mode = root.findtext(f".//{namespace}acquisition_mode") if not imaging_mode: raise InvalidProductError("imagingMode not found in metadata!") # Get sensor mode try: self.sensor_mode = IceyeSensorMode.from_value(imaging_mode) except ValueError as ex: raise InvalidTypeError(f"Invalid sensor mode for {self.name}") from ex
[docs] def get_datetime(self, as_datetime: bool = False) -> Union[str, datetime]: """ Get the product's acquisition datetime, with format :code:`YYYYMMDDTHHMMSS` <-> :code:`%Y%m%dT%H%M%S` .. code-block:: python >>> from eoreader.reader import Reader >>> path = r"1011117-766193" >>> prod = Reader().open(path) >>> prod.get_datetime(as_datetime=True) datetime.datetime(2020, 10, 28, 22, 46, 25) >>> prod.get_datetime(as_datetime=False) '20201028T224625' Args: as_datetime (bool): Return the date as a datetime.datetime. If false, returns a string. Returns: Union[str, datetime.datetime]: Its acquisition datetime """ if self.datetime is None: # Get MTD XML file root, nsmap = self.read_mtd() # Some ICEYE product metadata has a namespace some don't namespace = nsmap.get(None, "") # Open identifier acq_date = root.findtext(f".//{namespace}acquisition_start_utc") if not acq_date: raise InvalidProductError( "acquisition_start_utc not found in metadata!" ) # Convert to datetime date = datetime.strptime(acq_date, "%Y-%m-%dT%H:%M:%S.%f") else: date = self.datetime if not as_datetime: date = date.strftime(DATETIME_FMT) return date
def _get_name_constellation_specific(self) -> str: """ Set product real name from metadata Returns: str: True name of the product (from metadata) """ # Get MTD XML file root, nsmap = self.read_mtd() # Some ICEYE product metadata has a namespace some don't namespace = nsmap.get(None, "") # Open identifier name = root.findtext(f".//{namespace}product_name") if not name: raise InvalidProductError("product_name not found in metadata!") # Check if use_slc is compatible if self._use_slc and IceyeProductType.SLC.value not in name: raise InvalidProductError(f"This product {self.name} has no SLC image!") elif not self._use_slc and IceyeProductType.GRD.value not in name: raise InvalidProductError(f"This product {self.name} has no GRD image!") return name @cache def _read_mtd(self) -> (etree._Element, dict): """ Read metadata and outputs the metadata XML root and its namespaces as a dict .. code-block:: python >>> from eoreader.reader import Reader >>> path = r"1001513-735093" >>> prod = Reader().open(path) >>> prod.read_mtd() (<Element DeliveryNote at 0x2454ad4ee88>, {}) Returns: (etree._Element, dict): Metadata XML root and its namespaces """ def __read_mtd(prod_type: IceyeProductType): return self._read_mtd_xml(f"ICEYE*{prod_type.value}*.xml") if self._use_slc is None: try: root, nsmap = __read_mtd(IceyeProductType.GRD) self._use_slc = False except InvalidProductError: root, nsmap = __read_mtd(IceyeProductType.SLC) self._use_slc = True else: if self._use_slc: try: root, nsmap = __read_mtd(IceyeProductType.SLC) except InvalidProductError: LOGGER.warning("SLC image is not available for this product.") self._use_slc = False root, nsmap = __read_mtd(IceyeProductType.GRD) else: try: root, nsmap = __read_mtd(IceyeProductType.GRD) except InvalidProductError: LOGGER.warning("GRD image is not available for this product.") self._use_slc = True root, nsmap = __read_mtd(IceyeProductType.SLC) return root, nsmap
[docs] def get_raw_band_paths(self, **kwargs) -> dict: """ Return the existing path of the VV band (as they come with the archived products). ICEYE product only contains a VV band ! Args: **kwargs: Additional arguments Returns: dict: Dictionary containing the path of every band existing in the raw products """ band_paths = {} try: band_paths[sab.VV] = files.get_file_in_dir( self._band_folder, self._raw_band_regex, exact_name=True, get_list=False ) except FileNotFoundError: raise InvalidProductError( "An ICEYE product should at least contain a VV band !" ) return band_paths
[docs] def get_quicklook_path(self) -> str: """ Get quicklook path if existing. Returns: str: Quicklook path """ quicklook_path = None try: quicklook_path = str(next(self.path.glob("*.png"))) except StopIteration: LOGGER.warning(f"No quicklook found in {self.condensed_name}") return quicklook_path
[docs] @cache def get_orbit_direction(self) -> OrbitDirection: """ Get cloud cover as given in the metadata .. code-block:: python >>> from eoreader.reader import Reader >>> path = r"S2A_MSIL1C_20200824T110631_N0209_R137_T30TTK_20200824T150432.SAFE.zip" >>> prod = Reader().open(path) >>> prod.get_orbit_direction().value "DESCENDING" Returns: OrbitDirection: Orbit direction (ASCENDING/DESCENDING) """ # Get MTD XML file root, _ = self.read_mtd() # Get the orbit direction try: od = OrbitDirection.from_value(root.findtext(".//orbit_direction")) except TypeError: raise InvalidProductError("orbit_direction not found in metadata!") return od