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162 lines
7.4 KiB
Python
162 lines
7.4 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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gdaltindex.py
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---------------------
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Date : February 2015
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Copyright : (C) 2015 by Pedro Venancio
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Email : pedrongvenancio at gmail dot com
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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__ = 'Pedro Venancio'
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__date__ = 'February 2015'
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__copyright__ = '(C) 2015, Pedro Venancio'
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import os
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from qgis.PyQt.QtGui import QIcon
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from qgis.core import (QgsMapLayer,
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QgsProcessing,
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QgsProcessingAlgorithm,
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QgsProcessingException,
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QgsProcessingParameterCrs,
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QgsProcessingParameterEnum,
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QgsProcessingParameterString,
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QgsProcessingParameterBoolean,
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QgsProcessingParameterDefinition,
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QgsProcessingParameterMultipleLayers,
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QgsProcessingParameterVectorDestination)
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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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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class gdaltindex(GdalAlgorithm):
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LAYERS = 'LAYERS'
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PATH_FIELD_NAME = 'PATH_FIELD_NAME'
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ABSOLUTE_PATH = 'ABSOLUTE_PATH'
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PROJ_DIFFERENCE = 'PROJ_DIFFERENCE'
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TARGET_CRS = 'TARGET_CRS'
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CRS_FIELD_NAME = 'CRS_FIELD_NAME'
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CRS_FORMAT = 'CRS_FORMAT'
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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.formats = ((self.tr('Auto'), 'AUTO'),
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(self.tr('Well-known text (WKT)'), 'WKT'),
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(self.tr('EPSG'), 'EPSG'),
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(self.tr('Proj.4'), 'PROJ'))
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self.addParameter(QgsProcessingParameterMultipleLayers(self.LAYERS,
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self.tr('Input files'),
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QgsProcessing.TypeRaster))
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self.addParameter(QgsProcessingParameterString(self.PATH_FIELD_NAME,
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self.tr('Field name to hold the file path to the indexed rasters'),
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defaultValue='location'))
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self.addParameter(QgsProcessingParameterBoolean(self.ABSOLUTE_PATH,
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self.tr('Store absolute path to the indexed rasters'),
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defaultValue=False))
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self.addParameter(QgsProcessingParameterBoolean(self.PROJ_DIFFERENCE,
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self.tr('Skip files with different projection reference'),
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defaultValue=False))
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target_crs_param = QgsProcessingParameterCrs(self.TARGET_CRS,
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self.tr('Transform geometries to the given CRS'),
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optional=True)
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target_crs_param.setFlags(target_crs_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
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self.addParameter(target_crs_param)
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crs_field_param = QgsProcessingParameterString(self.CRS_FIELD_NAME,
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self.tr('The name of the field to store the SRS of each tile'),
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optional=True)
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crs_field_param.setFlags(crs_field_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
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self.addParameter(crs_field_param)
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crs_format_param = QgsProcessingParameterEnum(self.CRS_FORMAT,
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self.tr('The format in which the CRS of each tile must be written'),
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options=[i[0] for i in self.formats],
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allowMultiple=False,
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defaultValue=0)
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crs_format_param.setFlags(crs_format_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
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self.addParameter(crs_format_param)
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self.addParameter(QgsProcessingParameterVectorDestination(self.OUTPUT,
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self.tr('Tile index'),
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QgsProcessing.TypeVectorPolygon))
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def name(self):
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return 'tileindex'
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def displayName(self):
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return self.tr('Tile index')
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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 icon(self):
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return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'tiles.png'))
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def commandName(self):
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return 'gdaltindex'
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def getConsoleCommands(self, parameters, context, feedback, executing=True):
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input_layers = self.parameterAsLayerList(parameters, self.LAYERS, context)
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crs_field = self.parameterAsString(parameters, self.CRS_FIELD_NAME, context)
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crs_format = self.parameterAsEnum(parameters, self.CRS_FORMAT, context)
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target_crs = self.parameterAsCrs(parameters, self.TARGET_CRS, context)
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outFile = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
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self.setOutputValue(self.OUTPUT, outFile)
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output, outFormat = GdalUtils.ogrConnectionStringAndFormat(outFile, context)
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arguments = [
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'-tileindex',
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self.parameterAsString(parameters, self.PATH_FIELD_NAME, context),
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]
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if self.parameterAsBoolean(parameters, self.ABSOLUTE_PATH, context):
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arguments.append('-write_absolute_path')
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if self.parameterAsBoolean(parameters, self.PROJ_DIFFERENCE, context):
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arguments.append('-skip_different_projection')
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if crs_field:
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arguments.append('-src_srs_name {}'.format(crs_field))
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if crs_format:
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arguments.append('-src_srs_format {}'.format(self.formats[crs_format][1]))
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if target_crs.isValid():
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arguments.append('-t_srs')
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arguments.append(GdalUtils.gdal_crs_string(target_crs))
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if outFormat:
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arguments.append('-f {}'.format(outFormat))
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arguments.append(output)
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# Always write input files to a text file in case there are many of them and the
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# length of the command will be longer then allowed in command prompt
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list_file = GdalUtils.writeLayerParameterToTextFile(filename='tile_index_files.txt', alg=self, parameters=parameters, parameter_name=self.LAYERS, context=context, quote=True, executing=executing)
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arguments.append('--optfile')
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arguments.append(list_file)
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return [self.commandName(), GdalUtils.escapeAndJoin(arguments)]
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