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GridDataMetrics.py
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/
GridDataMetrics.py
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# -*- coding: utf-8 -*-
"""
***************************************************************************
GridDataMetrics.py
---------------------
Date : October 2013
Copyright : (C) 2013 by Alexander Bruy
Email : alexander dot bruy 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. *
* *
***************************************************************************
"""
from builtins import str
__author__ = 'Alexander Bruy'
__date__ = 'October 2013'
__copyright__ = '(C) 2013, Alexander Bruy'
# 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 processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
from processing.core.parameters import ParameterVector
from processing.core.parameters import ParameterTableField
from processing.core.parameters import ParameterSelection
from processing.core.parameters import ParameterNumber
from processing.core.outputs import OutputRaster
from processing.tools import dataobjects
from processing.algs.gdal.GdalUtils import GdalUtils
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
class GridDataMetrics(GdalAlgorithm):
INPUT = 'INPUT'
Z_FIELD = 'Z_FIELD'
METRIC = 'METRIC'
RADIUS_1 = 'RADIUS_1'
RADIUS_2 = 'RADIUS_2'
MIN_POINTS = 'MIN_POINTS'
ANGLE = 'ANGLE'
NODATA = 'NODATA'
OUTPUT = 'OUTPUT'
RTYPE = 'RTYPE'
TYPE = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64']
DATA_METRICS = ['Minimum', 'Maximum', 'Range', 'Count', 'Average distance',
'Average distance between points']
def getIcon(self):
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'grid.png'))
def commandLineName(self):
return "gdal:griddatametrics"
def defineCharacteristics(self):
self.name, self.i18n_name = self.trAlgorithm('Grid (Data metrics)')
self.group, self.i18n_group = self.trAlgorithm('[GDAL] Analysis')
self.addParameter(ParameterVector(self.INPUT,
self.tr('Input layer'), [dataobjects.TYPE_VECTOR_POINT]))
self.addParameter(ParameterTableField(self.Z_FIELD,
self.tr('Z field'), self.INPUT,
ParameterTableField.DATA_TYPE_NUMBER, True))
self.addParameter(ParameterSelection(self.METRIC,
self.tr('Metrics'), self.DATA_METRICS, 0))
self.addParameter(ParameterNumber(self.RADIUS_1,
self.tr('Radius 1'), 0.0, 99999999.999999, 0.0))
self.addParameter(ParameterNumber(self.RADIUS_2,
self.tr('Radius 2'), 0.0, 99999999.999999, 0.0))
self.addParameter(ParameterNumber(self.MIN_POINTS,
self.tr('Min points'), 0.0, 99999999.999999, 0.0))
self.addParameter(ParameterNumber(self.ANGLE,
self.tr('Angle'), 0.0, 359.0, 0.0))
self.addParameter(ParameterNumber(self.NODATA,
self.tr('Nodata'), 0.0, 99999999.999999, 0.0))
self.addParameter(ParameterSelection(self.RTYPE,
self.tr('Output raster type'), self.TYPE, 5))
self.addOutput(OutputRaster(self.OUTPUT, self.tr('Interpolated metrics')))
def getConsoleCommands(self):
arguments = ['-l']
arguments.append(
os.path.basename(os.path.splitext(
str(self.getParameterValue(self.INPUT)))[0]))
fieldName = self.getParameterValue(self.Z_FIELD)
if fieldName is not None and fieldName != '':
arguments.append('-zfield')
arguments.append(fieldName)
metric = self.getParameterValue(self.METRIC)
if metric == 0:
params = 'minimum'
elif metric == 1:
params = 'maximum'
elif metric == 2:
params = 'range'
elif metric == 3:
params = 'count'
elif metric == 4:
params = 'average_distance'
elif metric == 5:
params = 'average_distance_pts'
params += ':radius1=%s' % self.getParameterValue(self.RADIUS_1)
params += ':radius2=%s' % self.getParameterValue(self.RADIUS_2)
params += ':angle=%s' % self.getParameterValue(self.ANGLE)
params += ':min_points=%s' % self.getParameterValue(self.MIN_POINTS)
params += ':nodata=%s' % self.getParameterValue(self.NODATA)
arguments.append('-a')
arguments.append(params)
arguments.append('-ot')
arguments.append(self.TYPE[self.getParameterValue(self.RTYPE)])
arguments.append(str(self.getParameterValue(self.INPUT)))
arguments.append(str(self.getOutputValue(self.OUTPUT)))
return ['gdal_grid', GdalUtils.escapeAndJoin(arguments)]