| 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
26 import os
27 from pktoolsUtils import pktoolsUtils
28 from pktoolsAlgorithm import pktoolsAlgorithm
29 from processing.core.parameters import ParameterMultipleInput
30 from processing.core.parameters import ParameterRaster
31 from processing.core.outputs import OutputRaster
32 from processing.core.parameters import ParameterSelection
33 from processing.core.parameters import ParameterNumber
34 from processing.core.parameters import ParameterString
35 from processing.core.parameters import ParameterBoolean
36 from processing.core.parameters import ParameterExtent
37
38 class 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)
qgis.pkreclass.pkreclass.EXTRA
string EXTRA
Definition: pkreclass.py:50
qgis.pkreclass.pkreclass.name
name
Definition: pkreclass.py:56
qgis.pkreclass.pkreclass.NODATA
string NODATA
Definition: pkreclass.py:47
qgis.pkreclass.pkreclass.group
group
Definition: pkreclass.py:57
qgis.pkreclass.pkreclass.BAND
string BAND
Definition: pkreclass.py:43
qgis.pkreclass.pkreclass.cliName
def cliName(self)
Definition: pkreclass.py:52
qgis.pkreclass.pkreclass.CLASS
string CLASS
Definition: pkreclass.py:42
qgis.pkreclass.pkreclass.RTYPE
string RTYPE
Definition: pkreclass.py:48
qgis.pkreclass.pkreclass.MASK
string MASK
Definition: pkreclass.py:45
qgis.pkreclass.pkreclass.INPUT
string INPUT
Definition: pkreclass.py:40
qgis.pkreclass.pkreclass.RECLASS
string RECLASS
Definition: pkreclass.py:44
qgis.pkreclass.pkreclass.OUTPUT
string OUTPUT
Definition: pkreclass.py:41
qgis.pkreclass.pkreclass.MSKNODATA
string MSKNODATA
Definition: pkreclass.py:46
qgis.pkreclass.pkreclass.TYPE
list TYPE
Definition: pkreclass.py:49