pktools 2.6.7
Processing Kernel for geospatial data
pkfilter_spatial.py
1# -*- coding: utf-8 -*-
2
3"""
4***************************************************************************
5 pkfilter_spatial.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 pkfilter_spatial(pktoolsAlgorithm):
39
40 INPUT = "INPUT"
41 OUTPUT = "OUTPUT"
42 METHOD_OPTIONS = ["none", "median", "var", "min", "max", "sum", "mean", "dilate", "erode", "close", "open", "homog ", "heterog ", "sobelx ", "sobely ", "sobelxy ", "sobelyx" , "smooth", "countid", "smoothnodata values", "threshold local filtering", "ismin", "ismax", "order", "mode", "stdev", "mrf", "dwt", "dwti", "dwt_cut", "scramble", "shift", "savgolay", "percentile"]
43 METHOD = "METHOD"
44# RESAMPLE_OPTIONS = ['near', 'bilinear']
45# RESAMPLE = "RESAMPLE"
46 DIM = "DIM"
47 NODATA = "NODATA"
48 PADDING_OPTIONS = ["symmetric", "replicate", "circular", "zero"]
49 PADDING = "PADDING"
50 RTYPE = 'RTYPE'
51 TYPE = ['none', 'Byte','Int16','UInt16','UInt32','Int32','Float32','Float64','CInt16','CInt32','CFloat32','CFloat64']
52 EXTRA = 'EXTRA'
53
54 def cliName(self):
55 return "pkfilter"
56
57 def defineCharacteristics(self):
58 self.name = "spatial filter"
59 self.group = "[pktools] filter"
60
61 self.addParameter(ParameterRaster(self.INPUT, 'Input layer raster data set',ParameterRaster))
62 self.addParameter(ParameterSelection(self.METHOD,"filter rule",self.METHOD_OPTIONS, 0))
63 self.addOutput(OutputRaster(self.OUTPUT, "Output raster data set"))
64 self.addParameter(ParameterSelection(self.RTYPE, 'Output raster type (leave as none to keep original type)', self.TYPE, 0))
65 self.addParameter(ParameterNumber(self.DIM, "Filter kernel size (odd value)",0.0,None,3.0))
66 #for smooth nodata:
67 self.addParameter(ParameterString(self.NODATA, "invalid value(s) for input raster dataset (e.g., 0;255)","none"))
68 self.addParameter(ParameterSelection(self.PADDING,"Padding (edge effects)",self.PADDING_OPTIONS, 0))
69# self.addParameter(ParameterSelection(self.RESAMPLE,"resampling method",self.RESAMPLE_OPTIONS, 0))
70 self.addParameter(ParameterString(self.EXTRA,
71 'Additional parameters', '-of GTiff', optional=True))
72
73 def processAlgorithm(self, progress):
74 cliPath = '"' + os.path.join(pktoolsUtils.pktoolsPath(), self.cliName()) + '"'
75 commands = [cliPath]
76
77 input=self.getParameterValue(self.INPUT)
78 if input != "":
79 commands.append('-i')
80 commands.append('"' + input + '"')
81
82 method=self.METHOD_OPTIONS[self.getParameterValue(self.METHOD)]
83 if method != "none":
84 commands.append("-f")
85 commands.append(method)
86 commands.append("-pad")
87 commands.append(self.PADDING_OPTIONS[self.getParameterValue(self.PADDING)])
88
89 if self.TYPE[self.getParameterValue(self.RTYPE)] != "none":
90 commands.append('-ot')
91 commands.append(self.TYPE[self.getParameterValue(self.RTYPE)])
92 output=self.getOutputValue(self.OUTPUT)
93 if output != "":
94 commands.append("-o")
95 commands.append('"' + output + '"')
96
97 if self.getParameterValue(self.DIM) != 0:
98 commands.append("-dx")
99 commands.append(str(self.getParameterValue(self.DIM)))
100 commands.append("-dy")
101 commands.append(str(self.getParameterValue(self.DIM)))
102 nodata=self.getParameterValue(self.NODATA)
103 if nodata != "none":
104 nodataValues = nodata.split(';')
105 for nodataValue in nodataValues:
106 commands.append('-nodata')
107 commands.append(nodataValue)
108 extra = str(self.getParameterValue(self.EXTRA))
109 if len(extra) > 0:
110 commands.append(extra)
111
112 pktoolsUtils.runpktools(commands, progress)