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289 lines
9.6 KiB
Python
289 lines
9.6 KiB
Python
"""
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***************************************************************************
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gdal2tiles.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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QgsProcessingAlgorithm,
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QgsProcessingException,
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QgsProcessingParameterDefinition,
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QgsProcessingParameterRasterLayer,
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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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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 gdal2tiles(GdalAlgorithm):
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INPUT = "INPUT"
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PROFILE = "PROFILE"
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RESAMPLING = "RESAMPLING"
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ZOOM = "ZOOM"
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SOURCE_CRS = "SOURCE_CRS"
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NODATA = "NODATA"
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KML = "KML"
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NO_KML = "NO_KML"
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URL = "URL"
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VIEWER = "VIEWER"
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TITLE = "TITLE"
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COPYRIGHT = "COPYRIGHT"
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GOOGLE_KEY = "GOOGLE_KEY"
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BING_KEY = "BING_KEY"
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RESUME = "RESUME"
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OUTPUT = "OUTPUT"
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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.profiles = (
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(self.tr("Mercator"), "mercator"),
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(self.tr("Geodetic"), "geodetic"),
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(self.tr("Raster"), "raster"),
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)
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self.methods = (
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(self.tr("Average"), "average"),
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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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(self.tr("Antialias"), "antialias"),
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)
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self.viewers = (
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(self.tr("All"), "all"),
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(self.tr("GoogleMaps"), "google"),
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(self.tr("OpenLayers"), "openlayers"),
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(self.tr("Leaflet"), "leaflet"),
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(self.tr("None"), "none"),
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)
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self.addParameter(
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QgsProcessingParameterRasterLayer(self.INPUT, self.tr("Input layer"))
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)
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self.addParameter(
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QgsProcessingParameterEnum(
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self.PROFILE,
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self.tr("Tile cutting profile"),
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options=[i[0] for i in self.profiles],
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allowMultiple=False,
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defaultValue=0,
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)
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)
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self.addParameter(
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QgsProcessingParameterString(
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self.ZOOM,
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self.tr("Zoom levels to render"),
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defaultValue="",
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optional=True,
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)
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)
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self.addParameter(
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QgsProcessingParameterEnum(
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self.VIEWER,
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self.tr("Web viewer to generate"),
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options=[i[0] for i in self.viewers],
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allowMultiple=False,
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defaultValue=0,
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)
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)
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self.addParameter(
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QgsProcessingParameterString(
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self.TITLE, self.tr("Title of the map"), optional=True
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)
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)
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self.addParameter(
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QgsProcessingParameterString(
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self.COPYRIGHT, self.tr("Copyright of the map"), optional=True
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)
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)
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params = [
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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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QgsProcessingParameterCrs(
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self.SOURCE_CRS,
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self.tr("The spatial reference system used for the source input data"),
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optional=True,
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),
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QgsProcessingParameterNumber(
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self.NODATA,
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self.tr("Transparency value to assign to the input data"),
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type=QgsProcessingParameterNumber.Type.Double,
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defaultValue=0,
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optional=True,
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),
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QgsProcessingParameterString(
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self.URL,
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self.tr(
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"URL address where the generated tiles are going to be published"
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),
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optional=True,
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),
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QgsProcessingParameterString(
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self.GOOGLE_KEY,
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self.tr(
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"Google Maps API key (http://code.google.com/apis/maps/signup.html)"
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),
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optional=True,
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),
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QgsProcessingParameterString(
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self.BING_KEY,
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self.tr("Bing Maps API key (https://www.bingmapsportal.com/)"),
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optional=True,
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),
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QgsProcessingParameterBoolean(
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self.RESUME, self.tr("Generate only missing files"), defaultValue=False
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),
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QgsProcessingParameterBoolean(
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self.KML, self.tr("Generate KML for Google Earth"), defaultValue=False
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),
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QgsProcessingParameterBoolean(
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self.NO_KML,
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self.tr("Avoid automatic generation of KML files for EPSG:4326"),
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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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def name(self):
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return "gdal2tiles"
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def displayName(self):
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return self.tr("gdal2tiles")
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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 "gdal2tiles"
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def flags(self):
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return super().flags() | QgsProcessingAlgorithm.Flag.FlagDisplayNameIsLiteral
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def getConsoleCommands(self, parameters, context, feedback, executing=True):
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arguments = [
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"-p",
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self.profiles[self.parameterAsEnum(parameters, self.PROFILE, context)][1],
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]
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zoom = self.parameterAsString(parameters, self.ZOOM, context)
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if zoom:
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arguments.append("-z")
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arguments.append(str(zoom))
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arguments.append("-w")
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arguments.append(
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self.viewers[self.parameterAsEnum(parameters, self.VIEWER, context)][1]
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)
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title = self.parameterAsString(parameters, self.TITLE, context)
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if title:
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arguments.append("-t")
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arguments.append(title)
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copying = self.parameterAsString(parameters, self.COPYRIGHT, context)
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if copying:
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arguments.append("-c")
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arguments.append(copying)
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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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crs = self.parameterAsCrs(parameters, self.SOURCE_CRS, context)
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if crs.isValid():
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arguments.append("-s")
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arguments.append(GdalUtils.gdal_crs_string(crs))
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if self.NODATA in parameters and parameters[self.NODATA] is not None:
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nodata = self.parameterAsDouble(parameters, self.NODATA, context)
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arguments.append("-a")
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arguments.append(str(nodata))
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url = self.parameterAsString(parameters, self.URL, context)
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if url:
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arguments.append("-u")
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arguments.append(url)
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key = self.parameterAsString(parameters, self.GOOGLE_KEY, context)
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if key:
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arguments.append("-g")
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arguments.append(key)
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key = self.parameterAsString(parameters, self.BING_KEY, context)
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if key:
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arguments.append("-b")
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arguments.append(key)
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if self.parameterAsBoolean(parameters, self.RESUME, context):
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arguments.append("-e")
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if self.parameterAsBoolean(parameters, self.KML, context):
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arguments.append("-k")
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if self.parameterAsBoolean(parameters, self.NO_KML, context):
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arguments.append("-n")
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inLayer = self.parameterAsRasterLayer(parameters, self.INPUT, context)
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if inLayer is None:
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raise QgsProcessingException(
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self.invalidRasterError(parameters, self.INPUT)
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)
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input_details = GdalUtils.gdal_connection_details_from_layer(inLayer)
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arguments.append(input_details.connection_string)
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arguments.append(self.parameterAsString(parameters, self.OUTPUT, context))
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if input_details.credential_options:
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arguments.extend(input_details.credential_options_as_arguments())
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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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