2024-11-29 15:38:02 +01:00

289 lines
9.6 KiB
Python

"""
***************************************************************************
gdal2tiles.py
---------------------
Date : January 2016
Copyright : (C) 2016 by Médéric Ribreux
Email : mederic dot ribreux at medspx dot fr
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = "Médéric Ribreux"
__date__ = "January 2016"
__copyright__ = "(C) 2016, Médéric Ribreux"
from qgis.core import (
QgsProcessingAlgorithm,
QgsProcessingException,
QgsProcessingParameterDefinition,
QgsProcessingParameterRasterLayer,
QgsProcessingParameterCrs,
QgsProcessingParameterEnum,
QgsProcessingParameterString,
QgsProcessingParameterNumber,
QgsProcessingParameterBoolean,
QgsProcessingParameterFolderDestination,
)
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
from processing.algs.gdal.GdalUtils import GdalUtils
from processing.tools.system import isWindows
class gdal2tiles(GdalAlgorithm):
INPUT = "INPUT"
PROFILE = "PROFILE"
RESAMPLING = "RESAMPLING"
ZOOM = "ZOOM"
SOURCE_CRS = "SOURCE_CRS"
NODATA = "NODATA"
KML = "KML"
NO_KML = "NO_KML"
URL = "URL"
VIEWER = "VIEWER"
TITLE = "TITLE"
COPYRIGHT = "COPYRIGHT"
GOOGLE_KEY = "GOOGLE_KEY"
BING_KEY = "BING_KEY"
RESUME = "RESUME"
OUTPUT = "OUTPUT"
def __init__(self):
super().__init__()
def initAlgorithm(self, config=None):
self.profiles = (
(self.tr("Mercator"), "mercator"),
(self.tr("Geodetic"), "geodetic"),
(self.tr("Raster"), "raster"),
)
self.methods = (
(self.tr("Average"), "average"),
(self.tr("Nearest Neighbour"), "near"),
(self.tr("Bilinear (2x2 Kernel)"), "bilinear"),
(self.tr("Cubic (4x4 Kernel)"), "cubic"),
(self.tr("Cubic B-Spline (4x4 Kernel)"), "cubicspline"),
(self.tr("Lanczos (6x6 Kernel)"), "lanczos"),
(self.tr("Antialias"), "antialias"),
)
self.viewers = (
(self.tr("All"), "all"),
(self.tr("GoogleMaps"), "google"),
(self.tr("OpenLayers"), "openlayers"),
(self.tr("Leaflet"), "leaflet"),
(self.tr("None"), "none"),
)
self.addParameter(
QgsProcessingParameterRasterLayer(self.INPUT, self.tr("Input layer"))
)
self.addParameter(
QgsProcessingParameterEnum(
self.PROFILE,
self.tr("Tile cutting profile"),
options=[i[0] for i in self.profiles],
allowMultiple=False,
defaultValue=0,
)
)
self.addParameter(
QgsProcessingParameterString(
self.ZOOM,
self.tr("Zoom levels to render"),
defaultValue="",
optional=True,
)
)
self.addParameter(
QgsProcessingParameterEnum(
self.VIEWER,
self.tr("Web viewer to generate"),
options=[i[0] for i in self.viewers],
allowMultiple=False,
defaultValue=0,
)
)
self.addParameter(
QgsProcessingParameterString(
self.TITLE, self.tr("Title of the map"), optional=True
)
)
self.addParameter(
QgsProcessingParameterString(
self.COPYRIGHT, self.tr("Copyright of the map"), optional=True
)
)
params = [
QgsProcessingParameterEnum(
self.RESAMPLING,
self.tr("Resampling method"),
options=[i[0] for i in self.methods],
allowMultiple=False,
defaultValue=0,
),
QgsProcessingParameterCrs(
self.SOURCE_CRS,
self.tr("The spatial reference system used for the source input data"),
optional=True,
),
QgsProcessingParameterNumber(
self.NODATA,
self.tr("Transparency value to assign to the input data"),
type=QgsProcessingParameterNumber.Type.Double,
defaultValue=0,
optional=True,
),
QgsProcessingParameterString(
self.URL,
self.tr(
"URL address where the generated tiles are going to be published"
),
optional=True,
),
QgsProcessingParameterString(
self.GOOGLE_KEY,
self.tr(
"Google Maps API key (http://code.google.com/apis/maps/signup.html)"
),
optional=True,
),
QgsProcessingParameterString(
self.BING_KEY,
self.tr("Bing Maps API key (https://www.bingmapsportal.com/)"),
optional=True,
),
QgsProcessingParameterBoolean(
self.RESUME, self.tr("Generate only missing files"), defaultValue=False
),
QgsProcessingParameterBoolean(
self.KML, self.tr("Generate KML for Google Earth"), defaultValue=False
),
QgsProcessingParameterBoolean(
self.NO_KML,
self.tr("Avoid automatic generation of KML files for EPSG:4326"),
defaultValue=False,
),
]
for param in params:
param.setFlags(
param.flags() | QgsProcessingParameterDefinition.Flag.FlagAdvanced
)
self.addParameter(param)
self.addParameter(
QgsProcessingParameterFolderDestination(
self.OUTPUT, self.tr("Output directory")
)
)
def name(self):
return "gdal2tiles"
def displayName(self):
return self.tr("gdal2tiles")
def group(self):
return self.tr("Raster miscellaneous")
def groupId(self):
return "rastermiscellaneous"
def commandName(self):
return "gdal2tiles"
def flags(self):
return super().flags() | QgsProcessingAlgorithm.Flag.FlagDisplayNameIsLiteral
def getConsoleCommands(self, parameters, context, feedback, executing=True):
arguments = [
"-p",
self.profiles[self.parameterAsEnum(parameters, self.PROFILE, context)][1],
]
zoom = self.parameterAsString(parameters, self.ZOOM, context)
if zoom:
arguments.append("-z")
arguments.append(str(zoom))
arguments.append("-w")
arguments.append(
self.viewers[self.parameterAsEnum(parameters, self.VIEWER, context)][1]
)
title = self.parameterAsString(parameters, self.TITLE, context)
if title:
arguments.append("-t")
arguments.append(title)
copying = self.parameterAsString(parameters, self.COPYRIGHT, context)
if copying:
arguments.append("-c")
arguments.append(copying)
arguments.append("-r")
arguments.append(
self.methods[self.parameterAsEnum(parameters, self.RESAMPLING, context)][1]
)
crs = self.parameterAsCrs(parameters, self.SOURCE_CRS, context)
if crs.isValid():
arguments.append("-s")
arguments.append(GdalUtils.gdal_crs_string(crs))
if self.NODATA in parameters and parameters[self.NODATA] is not None:
nodata = self.parameterAsDouble(parameters, self.NODATA, context)
arguments.append("-a")
arguments.append(str(nodata))
url = self.parameterAsString(parameters, self.URL, context)
if url:
arguments.append("-u")
arguments.append(url)
key = self.parameterAsString(parameters, self.GOOGLE_KEY, context)
if key:
arguments.append("-g")
arguments.append(key)
key = self.parameterAsString(parameters, self.BING_KEY, context)
if key:
arguments.append("-b")
arguments.append(key)
if self.parameterAsBoolean(parameters, self.RESUME, context):
arguments.append("-e")
if self.parameterAsBoolean(parameters, self.KML, context):
arguments.append("-k")
if self.parameterAsBoolean(parameters, self.NO_KML, context):
arguments.append("-n")
inLayer = self.parameterAsRasterLayer(parameters, self.INPUT, context)
if inLayer is None:
raise QgsProcessingException(
self.invalidRasterError(parameters, self.INPUT)
)
input_details = GdalUtils.gdal_connection_details_from_layer(inLayer)
arguments.append(input_details.connection_string)
arguments.append(self.parameterAsString(parameters, self.OUTPUT, context))
if input_details.credential_options:
arguments.extend(input_details.credential_options_as_arguments())
return [
self.commandName() + (".bat" if isWindows() else ".py"),
GdalUtils.escapeAndJoin(arguments),
]