mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-28 00:17:30 -05:00
0f226645fa
-consistent parameters naming -use additional creation options where possible -remove duplicated functionality
185 lines
8.2 KiB
Python
185 lines
8.2 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
proximity.py
|
|
---------------------
|
|
Date : August 2012
|
|
Copyright : (C) 2012 by Victor Olaya
|
|
Email : volayaf at gmail dot com
|
|
***************************************************************************
|
|
* *
|
|
* 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__ = 'Victor Olaya'
|
|
__date__ = 'August 2012'
|
|
__copyright__ = '(C) 2012, Victor Olaya'
|
|
|
|
# This will get replaced with a git SHA1 when you do a git archive
|
|
|
|
__revision__ = '$Format:%H$'
|
|
|
|
import os
|
|
|
|
from qgis.PyQt.QtGui import QIcon
|
|
|
|
from qgis.core import (QgsRasterFileWriter,
|
|
QgsProcessingParameterDefinition,
|
|
QgsProcessingParameterRasterLayer,
|
|
QgsProcessingParameterBand,
|
|
QgsProcessingParameterEnum,
|
|
QgsProcessingParameterString,
|
|
QgsProcessingParameterNumber,
|
|
QgsProcessingParameterRasterDestination)
|
|
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
|
|
from processing.algs.gdal.GdalUtils import GdalUtils
|
|
|
|
from processing.tools.system import isWindows
|
|
|
|
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
|
|
|
|
|
|
class proximity(GdalAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
BAND = 'BAND'
|
|
VALUES = 'VALUES'
|
|
MAX_DISTANCE = 'MAX_DISTANCE'
|
|
REPLACE = 'REPLACE'
|
|
UNITS = 'UNITS'
|
|
NODATA = 'NODATA'
|
|
OPTIONS = 'OPTIONS'
|
|
DATA_TYPE = 'DATA_TYPE'
|
|
OUTPUT = 'OUTPUT'
|
|
|
|
TYPES = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64', 'CInt16', 'CInt32', 'CFloat32', 'CFloat64']
|
|
|
|
def icon(self):
|
|
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'proximity.png'))
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
def initAlgorithm(self, config=None):
|
|
self.distanceUnits = ((self.tr('Georeferenced coordinates'), 'GEO'),
|
|
(self.tr('Pixel coordinates'), 'PIXEL'))
|
|
|
|
self.addParameter(QgsProcessingParameterRasterLayer(self.INPUT,
|
|
self.tr('Input layer')))
|
|
self.addParameter(QgsProcessingParameterBand(self.BAND,
|
|
self.tr('Band number'),
|
|
parentLayerParameterName=self.INPUT))
|
|
self.addParameter(QgsProcessingParameterString(self.VALUES,
|
|
self.tr('A list of pixel values in the source image to be considered target pixels'),
|
|
optional=True))
|
|
self.addParameter(QgsProcessingParameterEnum(self.UNITS,
|
|
self.tr('Distance units'),
|
|
options=[i[0] for i in self.distanceUnits],
|
|
allowMultiple=False,
|
|
defaultValue=1))
|
|
self.addParameter(QgsProcessingParameterNumber(self.MAX_DISTANCE,
|
|
self.tr('The maximum distance to be generated'),
|
|
type=QgsProcessingParameterNumber.Double,
|
|
minValue=0.0,
|
|
defaultValue=0.0,
|
|
optional=True))
|
|
self.addParameter(QgsProcessingParameterNumber(self.REPLACE,
|
|
self.tr('Value to be applied to all pixels that are within the -maxdist of target pixels'),
|
|
type=QgsProcessingParameterNumber.Double,
|
|
defaultValue=0.0,
|
|
optional=True))
|
|
self.addParameter(QgsProcessingParameterNumber(self.NODATA,
|
|
self.tr('Nodata value to use for the destination proximity raster'),
|
|
type=QgsProcessingParameterNumber.Double,
|
|
defaultValue=0.0,
|
|
optional=True))
|
|
|
|
options_param = QgsProcessingParameterString(self.OPTIONS,
|
|
self.tr('Additional creation parameters'),
|
|
defaultValue='',
|
|
optional=True)
|
|
options_param.setFlags(options_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
|
|
options_param.setMetadata({
|
|
'widget_wrapper': {
|
|
'class': 'processing.algs.gdal.ui.RasterOptionsWidget.RasterOptionsWidgetWrapper'}})
|
|
self.addParameter(options_param)
|
|
|
|
self.addParameter(QgsProcessingParameterEnum(self.DATA_TYPE,
|
|
self.tr('Output data type'),
|
|
self.TYPES,
|
|
allowMultiple=False,
|
|
defaultValue=5))
|
|
|
|
self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT,
|
|
self.tr('Proximity map')))
|
|
|
|
def name(self):
|
|
return 'proximity'
|
|
|
|
def displayName(self):
|
|
return self.tr('Proximity (raster distance)')
|
|
|
|
def group(self):
|
|
return self.tr('Raster analysis')
|
|
|
|
def getConsoleCommands(self, parameters, context, feedback):
|
|
inLayer = self.parameterAsRasterLayer(parameters, self.INPUT, context)
|
|
distance = self.parameterAsDouble(parameters, self.MAX_DISTANCE, context)
|
|
replaceValue = self.parameterAsDouble(parameters, self.REPLACE, context)
|
|
nodata = self.parameterAsDouble(parameters, self.NODATA, context)
|
|
options = self.parameterAsString(parameters, self.OPTIONS, context)
|
|
out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
|
|
|
|
arguments = []
|
|
arguments.append('-srcband')
|
|
arguments.append(str(self.parameterAsInt(parameters, self.BAND, context)))
|
|
|
|
arguments.append('-distunits')
|
|
arguments.append(self.distanceUnits[self.parameterAsEnum(parameters, self.UNITS, context)][1])
|
|
|
|
values = self.parameterAsString(parameters, self.VALUES, context)
|
|
if values:
|
|
arguments.append('-values')
|
|
arguments.append(values)
|
|
|
|
if distance:
|
|
arguments.append('-maxdist')
|
|
arguments.append(str(distance))
|
|
|
|
if nodata:
|
|
arguments.append('-nodata')
|
|
arguments.append(str(nodata))
|
|
|
|
if replaceValue:
|
|
arguments.append('-fixed-buf-val')
|
|
arguments.append(str(replaceValue))
|
|
|
|
arguments.append('-ot')
|
|
arguments.append(self.TYPES[self.parameterAsEnum(parameters, self.DATA_TYPE, context)])
|
|
|
|
arguments.append('-of')
|
|
arguments.append(QgsRasterFileWriter.driverForExtension(os.path.splitext(out)[1]))
|
|
|
|
if options:
|
|
arguments.append('-co')
|
|
arguments.append(options)
|
|
|
|
arguments.append(inLayer.source())
|
|
arguments.append(out)
|
|
|
|
commands = []
|
|
if isWindows():
|
|
commands = ['cmd.exe', '/C ', 'gdal_proximity.bat',
|
|
GdalUtils.escapeAndJoin(arguments)]
|
|
else:
|
|
commands = ['gdal_proximity.py',
|
|
GdalUtils.escapeAndJoin(arguments)]
|
|
|
|
return commands
|