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retile.py
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retile.py
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# -*- coding: utf-8 -*-
"""
***************************************************************************
retile.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'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from qgis.core import (QgsProcessing,
QgsProcessingParameterDefinition,
QgsProcessingParameterMultipleLayers,
QgsProcessingParameterCrs,
QgsProcessingParameterEnum,
QgsProcessingParameterString,
QgsProcessingParameterNumber,
QgsProcessingParameterBoolean,
QgsProcessingOutputFolder,
QgsProcessingParameterFileDestination,
QgsProcessingParameterFolderDestination)
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
from processing.algs.gdal.GdalUtils import GdalUtils
from processing.tools.system import isWindows
class retile(GdalAlgorithm):
INPUT = 'INPUT'
TILE_SIZE_X = 'TILE_SIZE_X'
TILE_SIZE_Y = 'TILE_SIZE_Y'
OVERLAP = 'OVERLAP'
LEVELS = 'LEVELS'
SOURCE_CRS = 'SOURCE_CRS'
FORMAT = 'FORMAT'
RESAMPLING = 'RESAMPLING'
OPTIONS = 'OPTIONS'
DATA_TYPE = 'DATA_TYPE'
DELIMITER = 'DELIMITER'
ONLY_PYRAMIDS = 'ONLY_PYRAMIDS'
DIR_FOR_ROW = 'DIR_FOR_ROW'
OUTPUT = 'OUTPUT'
OUTPUT_CSV = 'OUTPUT_CSV'
TYPES = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64', 'CInt16', 'CInt32', 'CFloat32', 'CFloat64']
def __init__(self):
super().__init__()
def initAlgorithm(self, config=None):
self.methods = ((self.tr('Nearest neighbour'), 'near'),
(self.tr('Bilinear'), 'bilinear'),
(self.tr('Cubic'), 'cubic'),
(self.tr('Cubic spline'), 'cubicspline'),
(self.tr('Lanczos windowed sinc'), 'lanczos'),)
self.addParameter(QgsProcessingParameterMultipleLayers(self.INPUT,
self.tr('Input files'),
QgsProcessing.TypeRaster))
self.addParameter(QgsProcessingParameterNumber(self.TILE_SIZE_X,
self.tr('Tile width'),
type=QgsProcessingParameterNumber.Integer,
minValue=0,
defaultValue=256))
self.addParameter(QgsProcessingParameterNumber(self.TILE_SIZE_Y,
self.tr('Tile height'),
type=QgsProcessingParameterNumber.Integer,
minValue=0,
defaultValue=256))
self.addParameter(QgsProcessingParameterNumber(self.OVERLAP,
self.tr('Overlap in pixels between consecutive tiles'),
type=QgsProcessingParameterNumber.Integer,
minValue=0,
defaultValue=0))
self.addParameter(QgsProcessingParameterNumber(self.LEVELS,
self.tr('Number of pyramids levels to build'),
type=QgsProcessingParameterNumber.Integer,
minValue=0,
defaultValue=1))
params = []
params.append(QgsProcessingParameterCrs(self.SOURCE_CRS,
self.tr('Source coordinate reference system'),
optional=True))
params.append(QgsProcessingParameterEnum(self.RESAMPLING,
self.tr('Resampling method'),
options=[i[0] for i in self.methods],
allowMultiple=False,
defaultValue=0))
params.append(QgsProcessingParameterString(self.DELIMITER,
self.tr('Column delimiter used in the CSV file'),
defaultValue=';',
optional=True))
options_param = QgsProcessingParameterString(self.OPTIONS,
self.tr('Additional creation parameters'),
defaultValue='',
optional=True)
options_param.setMetadata({
'widget_wrapper': {
'class': 'processing.algs.gdal.ui.RasterOptionsWidget.RasterOptionsWidgetWrapper'}})
params.append(options_param)
params.append(QgsProcessingParameterEnum(self.DATA_TYPE,
self.tr('Output data type'),
self.TYPES,
allowMultiple=False,
defaultValue=5))
params.append(QgsProcessingParameterBoolean(self.ONLY_PYRAMIDS,
self.tr('Build only the pyramids'),
defaultValue=False))
params.append(QgsProcessingParameterBoolean(self.DIR_FOR_ROW,
self.tr('Use separate directory for each tiles row'),
defaultValue=False))
for param in params:
param.setFlags(param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(param)
self.addParameter(QgsProcessingParameterFolderDestination(self.OUTPUT,
self.tr('Output directory')))
output_csv_param = QgsProcessingParameterFileDestination(self.OUTPUT_CSV,
self.tr('CSV file containing the tile(s) georeferencing information'),
'CSV files (*.csv)',
optional=True)
output_csv_param.setCreateByDefault(False)
self.addParameter(output_csv_param)
def name(self):
return 'retile'
def displayName(self):
return self.tr('Retile')
def group(self):
return self.tr('Raster miscellaneous')
def groupId(self):
return 'rastermiscellaneous'
def commandName(self):
return "gdal_retile"
def getConsoleCommands(self, parameters, context, feedback, executing=True):
arguments = []
arguments.append('-ps')
arguments.append(str(self.parameterAsInt(parameters, self.TILE_SIZE_X, context)))
arguments.append(str(self.parameterAsInt(parameters, self.TILE_SIZE_Y, context)))
arguments.append('-overlap')
arguments.append(str(self.parameterAsInt(parameters, self.OVERLAP, context)))
arguments.append('-levels')
arguments.append(str(self.parameterAsInt(parameters, self.LEVELS, context)))
crs = self.parameterAsCrs(parameters, self.SOURCE_CRS, context)
if crs.isValid():
arguments.append('-s_srs')
arguments.append(crs.authid())
arguments.append('-r')
arguments.append(self.methods[self.parameterAsEnum(parameters, self.RESAMPLING, context)][1])
arguments.append('-ot')
arguments.append(self.TYPES[self.parameterAsEnum(parameters, self.DATA_TYPE, context)])
options = self.parameterAsString(parameters, self.OPTIONS, context)
if options:
arguments.extend(GdalUtils.parseCreationOptions(options))
if self.parameterAsBool(parameters, self.DIR_FOR_ROW, context):
arguments.append('-pyramidOnly')
if self.parameterAsBool(parameters, self.ONLY_PYRAMIDS, context):
arguments.append('-useDirForEachRow')
csvFile = self.parameterAsFileOutput(parameters, self.OUTPUT_CSV, context)
if csvFile:
arguments.append('-csv')
arguments.append(csvFile)
delimiter = self.parameterAsString(parameters, self.DELIMITER, context)
if delimiter:
arguments.append('-csvDelim')
arguments.append('"{}"'.format(delimiter))
arguments.append('-targetDir')
arguments.append(self.parameterAsString(parameters, self.OUTPUT, context))
layers = [l.source() for l in self.parameterAsLayerList(parameters, self.INPUT, context)]
arguments.extend(layers)
commands = []
if isWindows():
commands = ['cmd.exe', '/C ', 'gdal_retile.bat',
GdalUtils.escapeAndJoin(arguments)]
else:
commands = ['gdal_retile.py',
GdalUtils.escapeAndJoin(arguments)]
return commands