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325 lines
11 KiB
Python
325 lines
11 KiB
Python
"""
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***************************************************************************
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retile.py
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---------------------
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Date : January 2016
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Copyright : (C) 2016 by Médéric Ribreux
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Email : mederic dot ribreux at medspx dot fr
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = "Médéric Ribreux"
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__date__ = "January 2016"
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__copyright__ = "(C) 2016, Médéric Ribreux"
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from qgis.core import (
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QgsProcessing,
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QgsProcessingException,
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QgsProcessingParameterDefinition,
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QgsProcessingParameterMultipleLayers,
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QgsProcessingParameterCrs,
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QgsProcessingParameterEnum,
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QgsProcessingParameterString,
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QgsProcessingParameterNumber,
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QgsProcessingParameterBoolean,
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QgsProcessingParameterFileDestination,
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QgsProcessingParameterFolderDestination,
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)
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from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
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from processing.algs.gdal.GdalUtils import GdalUtils
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from processing.tools.system import isWindows
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class retile(GdalAlgorithm):
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INPUT = "INPUT"
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TILE_SIZE_X = "TILE_SIZE_X"
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TILE_SIZE_Y = "TILE_SIZE_Y"
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OVERLAP = "OVERLAP"
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LEVELS = "LEVELS"
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SOURCE_CRS = "SOURCE_CRS"
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FORMAT = "FORMAT"
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RESAMPLING = "RESAMPLING"
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OPTIONS = "OPTIONS"
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CREATION_OPTIONS = "CREATION_OPTIONS"
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EXTRA = "EXTRA"
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DATA_TYPE = "DATA_TYPE"
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DELIMITER = "DELIMITER"
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ONLY_PYRAMIDS = "ONLY_PYRAMIDS"
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DIR_FOR_ROW = "DIR_FOR_ROW"
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OUTPUT = "OUTPUT"
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OUTPUT_CSV = "OUTPUT_CSV"
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TYPES = [
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"Byte",
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"Int16",
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"UInt16",
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"UInt32",
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"Int32",
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"Float32",
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"Float64",
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"CInt16",
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"CInt32",
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"CFloat32",
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"CFloat64",
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"Int8",
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]
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def __init__(self):
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super().__init__()
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def initAlgorithm(self, config=None):
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self.methods = (
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(self.tr("Nearest Neighbour"), "near"),
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(self.tr("Bilinear (2x2 Kernel)"), "bilinear"),
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(self.tr("Cubic (4x4 Kernel)"), "cubic"),
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(self.tr("Cubic B-Spline (4x4 Kernel)"), "cubicspline"),
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(self.tr("Lanczos (6x6 Kernel)"), "lanczos"),
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)
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self.addParameter(
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QgsProcessingParameterMultipleLayers(
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self.INPUT, self.tr("Input files"), QgsProcessing.SourceType.TypeRaster
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)
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)
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self.addParameter(
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QgsProcessingParameterNumber(
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self.TILE_SIZE_X,
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self.tr("Tile width"),
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type=QgsProcessingParameterNumber.Type.Integer,
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minValue=0,
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defaultValue=256,
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)
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)
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self.addParameter(
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QgsProcessingParameterNumber(
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self.TILE_SIZE_Y,
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self.tr("Tile height"),
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type=QgsProcessingParameterNumber.Type.Integer,
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minValue=0,
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defaultValue=256,
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)
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)
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self.addParameter(
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QgsProcessingParameterNumber(
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self.OVERLAP,
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self.tr("Overlap in pixels between consecutive tiles"),
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type=QgsProcessingParameterNumber.Type.Integer,
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minValue=0,
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defaultValue=0,
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)
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)
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self.addParameter(
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QgsProcessingParameterNumber(
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self.LEVELS,
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self.tr("Number of pyramids levels to build"),
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type=QgsProcessingParameterNumber.Type.Integer,
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minValue=0,
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defaultValue=1,
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)
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)
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params = [
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QgsProcessingParameterCrs(
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self.SOURCE_CRS,
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self.tr("Source coordinate reference system"),
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optional=True,
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),
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QgsProcessingParameterEnum(
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self.RESAMPLING,
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self.tr("Resampling method"),
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options=[i[0] for i in self.methods],
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allowMultiple=False,
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defaultValue=0,
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),
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QgsProcessingParameterString(
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self.DELIMITER,
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self.tr("Column delimiter used in the CSV file"),
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defaultValue=";",
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optional=True,
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),
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]
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# backwards compatibility parameter
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# TODO QGIS 4: remove parameter and related logic
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options_param = QgsProcessingParameterString(
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self.OPTIONS,
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self.tr("Additional creation options"),
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defaultValue="",
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optional=True,
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)
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options_param.setFlags(
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options_param.flags() | QgsProcessingParameterDefinition.Flag.Hidden
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)
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options_param.setMetadata({"widget_wrapper": {"widget_type": "rasteroptions"}})
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self.addParameter(options_param)
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creation_options_param = QgsProcessingParameterString(
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self.CREATION_OPTIONS,
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self.tr("Additional creation options"),
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defaultValue="",
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optional=True,
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)
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creation_options_param.setFlags(
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creation_options_param.flags()
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| QgsProcessingParameterDefinition.Flag.FlagAdvanced
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)
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creation_options_param.setMetadata(
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{"widget_wrapper": {"widget_type": "rasteroptions"}}
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)
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self.addParameter(creation_options_param)
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params.append(
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QgsProcessingParameterString(
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self.EXTRA,
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self.tr("Additional command-line parameters"),
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defaultValue=None,
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optional=True,
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)
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)
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params.append(
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QgsProcessingParameterEnum(
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self.DATA_TYPE,
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self.tr("Output data type"),
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self.TYPES,
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allowMultiple=False,
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defaultValue=5,
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)
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)
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params.append(
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QgsProcessingParameterBoolean(
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self.ONLY_PYRAMIDS,
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self.tr("Build only the pyramids"),
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defaultValue=False,
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)
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)
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params.append(
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QgsProcessingParameterBoolean(
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self.DIR_FOR_ROW,
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self.tr("Use separate directory for each tiles row"),
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defaultValue=False,
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)
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)
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for param in params:
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param.setFlags(
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param.flags() | QgsProcessingParameterDefinition.Flag.FlagAdvanced
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)
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self.addParameter(param)
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self.addParameter(
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QgsProcessingParameterFolderDestination(
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self.OUTPUT, self.tr("Output directory")
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)
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)
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output_csv_param = QgsProcessingParameterFileDestination(
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self.OUTPUT_CSV,
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self.tr("CSV file containing the tile(s) georeferencing information"),
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"CSV files (*.csv)",
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optional=True,
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)
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output_csv_param.setCreateByDefault(False)
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self.addParameter(output_csv_param)
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def name(self):
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return "retile"
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def displayName(self):
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return self.tr("Retile")
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def group(self):
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return self.tr("Raster miscellaneous")
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def groupId(self):
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return "rastermiscellaneous"
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def commandName(self):
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return "gdal_retile"
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def getConsoleCommands(self, parameters, context, feedback, executing=True):
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arguments = [
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"-ps",
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str(self.parameterAsInt(parameters, self.TILE_SIZE_X, context)),
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str(self.parameterAsInt(parameters, self.TILE_SIZE_Y, context)),
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"-overlap",
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str(self.parameterAsInt(parameters, self.OVERLAP, context)),
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"-levels",
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str(self.parameterAsInt(parameters, self.LEVELS, context)),
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]
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crs = self.parameterAsCrs(parameters, self.SOURCE_CRS, context)
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if crs.isValid():
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arguments.append("-s_srs")
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arguments.append(GdalUtils.gdal_crs_string(crs))
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arguments.append("-r")
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arguments.append(
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self.methods[self.parameterAsEnum(parameters, self.RESAMPLING, context)][1]
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)
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data_type = self.parameterAsEnum(parameters, self.DATA_TYPE, context)
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if self.TYPES[data_type] == "Int8" and GdalUtils.version() < 3070000:
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raise QgsProcessingException(
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self.tr("Int8 data type requires GDAL version 3.7 or later")
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)
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arguments.append("-ot " + self.TYPES[data_type])
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options = self.parameterAsString(parameters, self.CREATION_OPTIONS, context)
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# handle backwards compatibility parameter OPTIONS
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if self.OPTIONS in parameters and parameters[self.OPTIONS] not in (None, ""):
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options = self.parameterAsString(parameters, self.OPTIONS, context)
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if options:
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arguments.extend(GdalUtils.parseCreationOptions(options))
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if self.EXTRA in parameters and parameters[self.EXTRA] not in (None, ""):
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extra = self.parameterAsString(parameters, self.EXTRA, context)
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arguments.append(extra)
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if self.parameterAsBoolean(parameters, self.DIR_FOR_ROW, context):
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arguments.append("-useDirForEachRow")
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if self.parameterAsBoolean(parameters, self.ONLY_PYRAMIDS, context):
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arguments.append("-pyramidOnly")
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csvFile = self.parameterAsFileOutput(parameters, self.OUTPUT_CSV, context)
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if csvFile:
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arguments.append("-csv")
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arguments.append(csvFile)
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delimiter = self.parameterAsString(parameters, self.DELIMITER, context)
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if delimiter:
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arguments.append("-csvDelim")
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arguments.append(delimiter)
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arguments.append("-targetDir")
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arguments.append(self.parameterAsString(parameters, self.OUTPUT, context))
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input_layers = self.parameterAsLayerList(parameters, self.INPUT, context)
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layers = []
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credential_options = []
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for layer in input_layers:
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layer_details = GdalUtils.gdal_connection_details_from_layer(layer)
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layers.append(layer_details.connection_string)
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if layer_details.credential_options:
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credential_options.extend(
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layer_details.credential_options_as_arguments()
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)
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arguments.extend(layers)
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arguments.extend(credential_options)
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return [
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self.commandName() + (".bat" if isWindows() else ".py"),
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GdalUtils.escapeAndJoin(arguments),
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]
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