/
GridDataMetrics.py
192 lines (156 loc) · 9.25 KB
/
GridDataMetrics.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
# -*- 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. *
* *
***************************************************************************
"""
__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 qgis.core import (QgsRasterFileWriter,
QgsProcessing,
QgsProcessingParameterDefinition,
QgsProcessingParameterFeatureSource,
QgsProcessingParameterEnum,
QgsProcessingParameterField,
QgsProcessingParameterNumber,
QgsProcessingParameterString,
QgsProcessingParameterRasterDestination)
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
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'
OPTIONS = 'OPTIONS'
DATA_TYPE = 'DATA_TYPE'
OUTPUT = 'OUTPUT'
TYPES = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64', 'CInt16', 'CInt32', 'CFloat32', 'CFloat64']
def __init__(self):
super().__init__()
def initAlgorithm(self, config=None):
self.metrics = ((self.tr('Minimum'), 'minimum'),
(self.tr('Maximum'), 'maximum'),
(self.tr('Range'), 'range'),
(self.tr('Count'), 'count'),
(self.tr('Average distance'), 'average_distance'),
(self.tr('Average distance between points'), 'average_distance_pts'))
self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT,
self.tr('Point layer'),
[QgsProcessing.TypeVectorPoint]))
z_field_param = QgsProcessingParameterField(self.Z_FIELD,
self.tr('Z value from field'),
None,
self.INPUT,
QgsProcessingParameterField.Numeric,
optional=True)
z_field_param.setFlags(z_field_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(z_field_param)
self.addParameter(QgsProcessingParameterEnum(self.METRIC,
self.tr('Data metric to use'),
options=[i[0] for i in self.metrics],
allowMultiple=False,
defaultValue=0))
self.addParameter(QgsProcessingParameterNumber(self.RADIUS_1,
self.tr('The first radius of search ellipse'),
type=QgsProcessingParameterNumber.Double,
minValue=0.0,
defaultValue=0.0))
self.addParameter(QgsProcessingParameterNumber(self.RADIUS_2,
self.tr('The second radius of search ellipse'),
type=QgsProcessingParameterNumber.Double,
minValue=0.0,
defaultValue=0.0))
self.addParameter(QgsProcessingParameterNumber(self.ANGLE,
self.tr('Angle of search ellipse rotation in degrees (counter clockwise)'),
type=QgsProcessingParameterNumber.Double,
minValue=0.0,
maxValue=360.0,
defaultValue=0.0))
self.addParameter(QgsProcessingParameterNumber(self.MIN_POINTS,
self.tr('Minimum number of data points to use'),
type=QgsProcessingParameterNumber.Integer,
minValue=0,
defaultValue=0))
self.addParameter(QgsProcessingParameterNumber(self.NODATA,
self.tr('NODATA marker to fill empty points'),
type=QgsProcessingParameterNumber.Double,
defaultValue=0.0))
options_param = QgsProcessingParameterString(self.OPTIONS,
self.tr('Additional creation parameters'),
defaultValue='',
optional=True)
options_param.setFlags(options_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
options_param.setMetadata({
'widget_wrapper': {
'class': 'processing.algs.gdal.ui.RasterOptionsWidget.RasterOptionsWidgetWrapper'}})
self.addParameter(options_param)
dataType_param = QgsProcessingParameterEnum(self.DATA_TYPE,
self.tr('Output data type'),
self.TYPES,
allowMultiple=False,
defaultValue=5)
dataType_param.setFlags(dataType_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
self.addParameter(dataType_param)
self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT,
self.tr('Interpolated (data metrics)')))
def name(self):
return 'griddatametrics'
def displayName(self):
return self.tr('Grid (Data metrics)')
def icon(self):
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'grid.png'))
def group(self):
return self.tr('Raster analysis')
def groupId(self):
return 'rasteranalysis'
def commandName(self):
return 'gdal_grid'
def getConsoleCommands(self, parameters, context, feedback, executing=True):
ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
arguments = ['-l']
arguments.append(layerName)
fieldName = self.parameterAsString(parameters, self.Z_FIELD, context)
if fieldName:
arguments.append('-zfield')
arguments.append(fieldName)
params = self.metrics[self.parameterAsEnum(parameters, self.METRIC, context)][1]
params += ':radius1={}'.format(self.parameterAsDouble(parameters, self.RADIUS_1, context))
params += ':radius2={}'.format(self.parameterAsDouble(parameters, self.RADIUS_2, context))
params += ':angle={}'.format(self.parameterAsDouble(parameters, self.ANGLE, context))
params += ':min_points={}'.format(self.parameterAsInt(parameters, self.MIN_POINTS, context))
params += ':nodata={}'.format(self.parameterAsDouble(parameters, self.NODATA, context))
arguments.append('-a')
arguments.append(params)
arguments.append('-ot')
arguments.append(self.TYPES[self.parameterAsEnum(parameters, self.DATA_TYPE, context)])
out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
arguments.append('-of')
arguments.append(QgsRasterFileWriter.driverForExtension(os.path.splitext(out)[1]))
options = self.parameterAsString(parameters, self.OPTIONS, context)
if options:
arguments.extend(GdalUtils.parseCreationOptions(options))
arguments.append(ogrLayer)
arguments.append(out)
return [self.commandName(), GdalUtils.escapeAndJoin(arguments)]