pktools 2.6.7
Processing Kernel for geospatial data
pkreclass.py
1# -*- coding: utf-8 -*-
2
3"""
4***************************************************************************
5 pkreclass.py
6 ---------------------
7 Date : April 2015
8 Copyright : (C) 2015 by Pieter Kempeneers
9 Email : kempenep at gmail dot com
10***************************************************************************
11* *
12* This program is free software; you can redistribute it and/or modify *
13* it under the terms of the GNU General Public License as published by *
14* the Free Software Foundation; either version 2 of the License, or *
15* (at your option) any later version. *
16* *
17***************************************************************************
18"""
19
20__author__ = 'Pieter Kempeneers'
21__date__ = 'April 2015'
22__copyright__ = '(C) 2015, Pieter Kempeneers'
23# This will get replaced with a git SHA1 when you do a git archive
24__revision__ = '$Format:%H$'
25
26import os
27from pktoolsUtils import pktoolsUtils
28from pktoolsAlgorithm import pktoolsAlgorithm
29from processing.core.parameters import ParameterMultipleInput
30from processing.core.parameters import ParameterRaster
31from processing.core.outputs import OutputRaster
32from processing.core.parameters import ParameterSelection
33from processing.core.parameters import ParameterNumber
34from processing.core.parameters import ParameterString
35from processing.core.parameters import ParameterBoolean
36from processing.core.parameters import ParameterExtent
37
38class pkreclass(pktoolsAlgorithm):
39
40 INPUT = "INPUT"
41 OUTPUT = "OUTPUT"
42 CLASS = "CLASS"
43 BAND = "BAND"
44 RECLASS = "RECLASS"
45 MASK = "MASK"
46 MSKNODATA = "MSKNODATA"
47 NODATA = "NODATA"
48 RTYPE = 'RTYPE'
49 TYPE = ['none', 'Byte','Int16','UInt16','UInt32','Int32','Float32','Float64','CInt16','CInt32','CFloat32','CFloat64']
50 EXTRA = 'EXTRA'
51
52 def cliName(self):
53 return "pkreclass"
54
55 def defineCharacteristics(self):
56 self.name = "reclass raster datasets"
57 self.group = "[pktools] raster"
58 self.addParameter(ParameterMultipleInput(self.INPUT, 'Input layer raster data set',ParameterMultipleInput.TYPE_RASTER))
59 self.addOutput(OutputRaster(self.OUTPUT, "Output raster data set"))
60 self.addParameter(ParameterString(self.BAND, "Band index(es) to replace, e.g., 0;1;2 (other bands are copied to output)", '0'))
61 self.addParameter(ParameterRaster(self.MASK, "Mask raster dataset",optional=True))
62 self.addParameter(ParameterString(self.MSKNODATA, "Mask value(s) not to consider for classification (e.g., 0;255)","0"))
63 self.addParameter(ParameterString(self.CLASS, "list of classes to reclass, in combination with reclass option, e.g., 0;1;2;3",""))
64 self.addParameter(ParameterString(self.RECLASS, "list of recoded classes, in combination with class option e.g., 10;11;12;13",""))
65 self.addParameter(ParameterNumber(self.NODATA, "nodata value to put in image if not valid",0,None,0))
66
67 self.addParameter(ParameterSelection(self.RTYPE, 'Output raster type (leave as none to keep original type)', self.TYPE, 0))
68 self.addParameter(ParameterString(self.EXTRA,
69 'Additional parameters', '-of GTiff', optional=True))
70
71 def processAlgorithm(self, progress):
72 cliPath = '"' + os.path.join(pktoolsUtils.pktoolsPath(), self.cliName()) + '"'
73 commands = [cliPath]
74
75 input=self.getParameterValue(self.INPUT)
76 commands.append('-i')
77 commands.append('"' + input + '"')
78
79 if self.TYPE[self.getParameterValue(self.RTYPE)] != "none":
80 commands.append('-ot')
81 commands.append(self.TYPE[self.getParameterValue(self.RTYPE)])
82
83 output=self.getOutputValue(self.OUTPUT)
84 commands.append("-o")
85 commands.append('"' + output + '"')
86
87 commands.append('-nodata')
88 commands.append(str(self.getParameterValue(self.NODATA)))
89
90 band=str(self.getParameterValue(self.BAND))
91 if band != '':
92 bandValues = band.split(';')
93 for bandValue in bandValues:
94 commands.append('-b')
95 commands.append(bandValue)
96
97 theclass=str(self.getParameterValue(self.CLASS))
98 if theclass != '':
99 classValues = theclass.split(';')
100 for classValue in classValues:
101 commands.append('-c')
102 commands.append(classValue)
103 reclass=str(self.getParameterValue(self.RECLASS))
104 if reclass != '':
105 reclassValues = reclass.split(';')
106 for reclassValue in reclassValues:
107 commands.append('-r')
108 commands.append(reclassValue)
109
110 mask = str(self.getParameterValue(self.MASK))
111 if mask != "None":
112 commands.append('-m')
113 commands.append(mask)
114 msknodata=str(self.getParameterValue(self.MSKNODATA))
115 msknodataValues = msknodata.split(';')
116 for msknodataValue in msknodataValues:
117 commands.append('-msknodata')
118 commands.append(msknodataValue)
119
120 extra = str(self.getParameterValue(self.EXTRA))
121 if len(extra) > 0:
122 commands.append(extra)
123
124 pktoolsUtils.runpktools(commands, progress)