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125 lines
4.8 KiB
Python
125 lines
4.8 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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GridDataMetrics.py
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---------------------
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Date : October 2013
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Copyright : (C) 2013 by Alexander Bruy
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Email : alexander dot bruy 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__ = 'Alexander Bruy'
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__date__ = 'October 2013'
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__copyright__ = '(C) 2013, Alexander Bruy'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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import os
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from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
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from processing.core.parameters import ParameterVector
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from processing.core.parameters import ParameterTableField
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from processing.core.parameters import ParameterSelection
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from processing.core.parameters import ParameterNumber
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from processing.core.outputs import OutputRaster
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from processing.algs.gdal.GdalUtils import GdalUtils
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class GridDataMetrics(GdalAlgorithm):
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INPUT = 'INPUT'
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Z_FIELD = 'Z_FIELD'
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METRIC = 'METRIC'
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RADIUS_1 = 'RADIUS_1'
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RADIUS_2 = 'RADIUS_2'
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MIN_POINTS = 'MIN_POINTS'
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ANGLE = 'ANGLE'
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NODATA = 'NODATA'
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OUTPUT = 'OUTPUT'
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RTYPE = 'RTYPE'
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TYPE = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64']
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DATA_METRICS = ['Minimum', 'Maximum', 'Range', 'Count', 'Average distance',
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'Average distance between points']
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def commandLineName(self):
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return "gdalogr:griddatametrics"
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def defineCharacteristics(self):
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self.name = 'Grid (Data metrics)'
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self.group = '[GDAL] Analysis'
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self.addParameter(ParameterVector(self.INPUT,
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self.tr('Input layer'), [ParameterVector.VECTOR_TYPE_POINT]))
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self.addParameter(ParameterTableField(self.Z_FIELD,
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self.tr('Z field'), self.INPUT,
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ParameterTableField.DATA_TYPE_NUMBER, True))
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self.addParameter(ParameterSelection(self.METRIC,
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self.tr('Metrics'), self.DATA_METRICS, 0))
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self.addParameter(ParameterNumber(self.RADIUS_1,
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self.tr('Radius 1'), 0.0, 99999999.999999, 0.0))
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self.addParameter(ParameterNumber(self.RADIUS_2,
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self.tr('Radius 2'), 0.0, 99999999.999999, 0.0))
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self.addParameter(ParameterNumber(self.MIN_POINTS,
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self.tr('Min points'), 0.0, 99999999.999999, 0.0))
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self.addParameter(ParameterNumber(self.ANGLE,
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self.tr('Angle'), 0.0, 359.0, 0.0))
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self.addParameter(ParameterNumber(self.NODATA,
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self.tr('Nodata'), 0.0, 99999999.999999, 0.0))
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self.addParameter(ParameterSelection(self.RTYPE,
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self.tr('Output raster type'), self.TYPE, 5))
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self.addOutput(OutputRaster(self.OUTPUT, self.tr('Output file')))
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def processAlgorithm(self, progress):
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arguments = ['-l']
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arguments.append(
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os.path.basename(os.path.splitext(
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unicode(self.getParameterValue(self.INPUT)))[0]))
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fieldName = self.getParameterValue(self.Z_FIELD)
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if fieldName is not None and fieldName != '':
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arguments.append('-zfield')
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arguments.append(fieldName)
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metric = self.getParameterValue(self.METRIC)
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if metric == 0:
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params = 'minimum'
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elif metric == 1:
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params = 'maximum'
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elif metric == 2:
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params = 'range'
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elif metric == 3:
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params = 'count'
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elif metric == 4:
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params = 'average_distance'
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elif metric == 5:
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params = 'average_distance_pts'
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params += ':radius1=%s' % self.getParameterValue(self.RADIUS_1)
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params += ':radius2=%s' % self.getParameterValue(self.RADIUS_2)
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params += ':angle=%s' % self.getParameterValue(self.ANGLE)
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params += ':min_points=%s' % self.getParameterValue(self.MIN_POINTS)
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params += ':nodata=%s' % self.getParameterValue(self.NODATA)
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arguments.append('-a')
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arguments.append(params)
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arguments.append('-ot')
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arguments.append(self.TYPE[self.getParameterValue(self.RTYPE)])
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arguments.append(unicode(self.getParameterValue(self.INPUT)))
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arguments.append(unicode(self.getOutputValue(self.OUTPUT)))
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GdalUtils.runGdal(['gdal_grid',
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GdalUtils.escapeAndJoin(arguments)], progress)
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