mirror of
https://github.com/qgis/QGIS.git
synced 2025-11-04 00:04:25 -05:00
396 lines
14 KiB
Python
396 lines
14 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
InterpolationDataWidget.py
|
|
---------------------
|
|
Date : December 2016
|
|
Copyright : (C) 2016 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__ = 'December 2016'
|
|
__copyright__ = '(C) 2016, Alexander Bruy'
|
|
|
|
import os
|
|
|
|
from qgis.PyQt import uic
|
|
from qgis.PyQt.QtCore import pyqtSignal
|
|
from qgis.PyQt.QtWidgets import (QTreeWidgetItem,
|
|
QComboBox)
|
|
from qgis.core import (QgsApplication,
|
|
QgsMapLayerProxyModel,
|
|
QgsWkbTypes,
|
|
QgsRectangle,
|
|
QgsReferencedRectangle,
|
|
QgsCoordinateReferenceSystem,
|
|
QgsProcessingUtils,
|
|
QgsProcessingParameterNumber,
|
|
QgsProcessingParameterDefinition,
|
|
QgsFieldProxyModel)
|
|
from qgis.gui import QgsDoubleSpinBox
|
|
from qgis.analysis import QgsInterpolator
|
|
|
|
from processing.gui.wrappers import WidgetWrapper, DIALOG_STANDARD
|
|
from processing.tools import dataobjects
|
|
|
|
pluginPath = os.path.dirname(__file__)
|
|
|
|
|
|
class ParameterInterpolationData(QgsProcessingParameterDefinition):
|
|
|
|
def __init__(self, name='', description=''):
|
|
super().__init__(name, description)
|
|
self.setMetadata({
|
|
'widget_wrapper': 'processing.algs.qgis.ui.InterpolationWidgets.InterpolationDataWidgetWrapper'
|
|
})
|
|
|
|
def type(self):
|
|
return 'idw_interpolation_data'
|
|
|
|
def clone(self):
|
|
return ParameterInterpolationData(self.name(), self.description())
|
|
|
|
@staticmethod
|
|
def parseValue(value):
|
|
if value is None:
|
|
return None
|
|
|
|
if value == '':
|
|
return None
|
|
|
|
if isinstance(value, str):
|
|
return value if value != '' else None
|
|
else:
|
|
return ParameterInterpolationData.dataToString(value)
|
|
|
|
@staticmethod
|
|
def dataToString(data):
|
|
s = ''
|
|
for c in data:
|
|
s += '{}::~::{}::~::{:d}::~::{:d};'.format(c[0],
|
|
c[1],
|
|
c[2],
|
|
c[3])
|
|
return s[:-1]
|
|
|
|
|
|
WIDGET, BASE = uic.loadUiType(os.path.join(pluginPath, 'interpolationdatawidgetbase.ui'))
|
|
|
|
|
|
class InterpolationDataWidget(BASE, WIDGET):
|
|
hasChanged = pyqtSignal()
|
|
|
|
def __init__(self):
|
|
super(InterpolationDataWidget, self).__init__(None)
|
|
self.setupUi(self)
|
|
|
|
self.btnAdd.setIcon(QgsApplication.getThemeIcon('/symbologyAdd.svg'))
|
|
self.btnRemove.setIcon(QgsApplication.getThemeIcon('/symbologyRemove.svg'))
|
|
|
|
self.btnAdd.clicked.connect(self.addLayer)
|
|
self.btnRemove.clicked.connect(self.removeLayer)
|
|
|
|
self.cmbLayers.layerChanged.connect(self.layerChanged)
|
|
self.cmbLayers.setFilters(QgsMapLayerProxyModel.VectorLayer)
|
|
self.cmbFields.setFilters(QgsFieldProxyModel.Numeric)
|
|
self.cmbFields.setLayer(self.cmbLayers.currentLayer())
|
|
|
|
def addLayer(self):
|
|
layer = self.cmbLayers.currentLayer()
|
|
|
|
attribute = ''
|
|
if self.chkUseZCoordinate.isChecked():
|
|
attribute = 'Z_COORD'
|
|
else:
|
|
attribute = self.cmbFields.currentField()
|
|
|
|
self._addLayerData(layer.name(), attribute)
|
|
self.hasChanged.emit()
|
|
|
|
def removeLayer(self):
|
|
item = self.layersTree.currentItem()
|
|
if not item:
|
|
return
|
|
self.layersTree.invisibleRootItem().removeChild(item)
|
|
self.hasChanged.emit()
|
|
|
|
def layerChanged(self, layer):
|
|
self.chkUseZCoordinate.setEnabled(False)
|
|
self.chkUseZCoordinate.setChecked(False)
|
|
|
|
if layer is None or not layer.isValid():
|
|
return
|
|
|
|
provider = layer.dataProvider()
|
|
if not provider:
|
|
return
|
|
|
|
if QgsWkbTypes.hasZ(provider.wkbType()):
|
|
self.chkUseZCoordinate.setEnabled(True)
|
|
|
|
self.cmbFields.setLayer(layer)
|
|
|
|
def _addLayerData(self, layerName, attribute):
|
|
item = QTreeWidgetItem()
|
|
item.setText(0, layerName)
|
|
item.setText(1, attribute)
|
|
self.layersTree.addTopLevelItem(item)
|
|
|
|
comboBox = QComboBox()
|
|
comboBox.addItem(self.tr('Points'))
|
|
comboBox.addItem(self.tr('Structure lines'))
|
|
comboBox.addItem(self.tr('Break lines'))
|
|
comboBox.setCurrentIndex(0)
|
|
self.layersTree.setItemWidget(item, 2, comboBox)
|
|
|
|
def setValue(self, value):
|
|
self.layersTree.clear()
|
|
rows = value.split(';')
|
|
for i, r in enumerate(rows):
|
|
v = r.split('::~::')
|
|
self.addLayerData(v[0], v[1])
|
|
|
|
comboBox = self.layersTree.itemWidget(self.layersTree.topLevelItem(i), 2)
|
|
comboBox.setCurrentIndex(comboBox.findText(v[3]))
|
|
self.hasChanged.emit()
|
|
|
|
def value(self):
|
|
layers = ''
|
|
context = dataobjects.createContext()
|
|
for i in range(self.layersTree.topLevelItemCount()):
|
|
item = self.layersTree.topLevelItem(i)
|
|
if item:
|
|
layerName = item.text(0)
|
|
layer = QgsProcessingUtils.mapLayerFromString(layerName, context)
|
|
if not layer:
|
|
continue
|
|
|
|
provider = layer.dataProvider()
|
|
if not provider:
|
|
continue
|
|
|
|
interpolationAttribute = item.text(1)
|
|
interpolationSource = QgsInterpolator.ValueAttribute
|
|
if interpolationAttribute == 'Z_COORD':
|
|
interpolationSource = QgsInterpolator.ValueZ
|
|
fieldIndex = -1
|
|
else:
|
|
fieldIndex = layer.fields().indexFromName(interpolationAttribute)
|
|
|
|
comboBox = self.layersTree.itemWidget(self.layersTree.topLevelItem(i), 2)
|
|
inputTypeName = comboBox.currentText()
|
|
if inputTypeName == self.tr('Points'):
|
|
inputType = QgsInterpolator.SourcePoints
|
|
elif inputTypeName == self.tr('Structure lines'):
|
|
inputType = QgsInterpolator.SourceStructureLines
|
|
else:
|
|
inputType = QgsInterpolator.SourceBreakLines
|
|
|
|
layers += '{}::~::{:d}::~::{:d}::~::{:d}::|::'.format(layer.source(),
|
|
interpolationSource,
|
|
fieldIndex,
|
|
inputType)
|
|
return layers[:-len('::|::')]
|
|
|
|
|
|
class InterpolationDataWidgetWrapper(WidgetWrapper):
|
|
|
|
def createWidget(self):
|
|
widget = InterpolationDataWidget()
|
|
widget.hasChanged.connect(lambda: self.widgetValueHasChanged.emit(self))
|
|
return widget
|
|
|
|
def setValue(self, value):
|
|
self.widget.setValue(value)
|
|
|
|
def value(self):
|
|
return self.widget.value()
|
|
|
|
|
|
class ParameterPixelSize(QgsProcessingParameterNumber):
|
|
|
|
def __init__(self, name='', description='', layersData=None, extent=None, minValue=None, default=None, optional=False):
|
|
QgsProcessingParameterNumber.__init__(self, name, description, QgsProcessingParameterNumber.Double, default, optional, minValue)
|
|
self.setMetadata({
|
|
'widget_wrapper': 'processing.algs.qgis.ui.InterpolationWidgets.PixelSizeWidgetWrapper'
|
|
})
|
|
|
|
self.layersData = layersData
|
|
self.extent = extent
|
|
self.layers = []
|
|
|
|
def clone(self):
|
|
copy = ParameterPixelSize(self.name(), self.description(), self.layersData, self.extent, self.minimum(), self.defaultValue(), self.flags() & QgsProcessingParameterDefinition.FlagOptional)
|
|
return copy
|
|
|
|
|
|
WIDGET, BASE = uic.loadUiType(os.path.join(pluginPath, 'RasterResolutionWidget.ui'))
|
|
|
|
|
|
class PixelSizeWidget(BASE, WIDGET):
|
|
|
|
def __init__(self):
|
|
super(PixelSizeWidget, self).__init__(None)
|
|
self.setupUi(self)
|
|
self.context = dataobjects.createContext()
|
|
|
|
self.extent = QgsRectangle()
|
|
self.layers = []
|
|
|
|
self.mCellXSpinBox.setShowClearButton(False)
|
|
self.mCellYSpinBox.setShowClearButton(False)
|
|
self.mRowsSpinBox.setShowClearButton(False)
|
|
self.mColumnsSpinBox.setShowClearButton(False)
|
|
|
|
self.mCellYSpinBox.valueChanged.connect(self.mCellXSpinBox.setValue)
|
|
self.mCellXSpinBox.valueChanged.connect(self.pixelSizeChanged)
|
|
self.mRowsSpinBox.valueChanged.connect(self.rowsChanged)
|
|
self.mColumnsSpinBox.valueChanged.connect(self.columnsChanged)
|
|
|
|
def setLayers(self, layersData):
|
|
self.extent = QgsRectangle()
|
|
self.layers = []
|
|
for row in layersData.split(';'):
|
|
v = row.split('::~::')
|
|
# need to keep a reference until interpolation is complete
|
|
layer = QgsProcessingUtils.variantToSource(v[0], self.context)
|
|
if layer:
|
|
self.layers.append(layer)
|
|
bbox = layer.sourceExtent()
|
|
if self.extent.isEmpty():
|
|
self.extent = bbox
|
|
else:
|
|
self.extent.combineExtentWith(bbox)
|
|
|
|
self.pixelSizeChanged()
|
|
|
|
def setExtent(self, extent):
|
|
if extent is not None:
|
|
tokens = extent.split(' ')[0].split(',')
|
|
ext = QgsRectangle(float(tokens[0]), float(tokens[2]), float(tokens[1]), float(tokens[3]))
|
|
if len(tokens) > 1:
|
|
self.extent = QgsReferencedRectangle(ext, QgsCoordinateReferenceSystem(tokens[1][1:-1]))
|
|
else:
|
|
self.extent = ext
|
|
self.pixelSizeChanged()
|
|
|
|
def pixelSizeChanged(self):
|
|
cell_size = self.mCellXSpinBox.value()
|
|
if cell_size <= 0:
|
|
return
|
|
|
|
self.mCellYSpinBox.blockSignals(True)
|
|
self.mCellYSpinBox.setValue(cell_size)
|
|
self.mCellYSpinBox.blockSignals(False)
|
|
rows = max(round(self.extent.height() / cell_size) + 1, 1)
|
|
cols = max(round(self.extent.width() / cell_size) + 1, 1)
|
|
self.mRowsSpinBox.blockSignals(True)
|
|
self.mRowsSpinBox.setValue(rows)
|
|
self.mRowsSpinBox.blockSignals(False)
|
|
self.mColumnsSpinBox.blockSignals(True)
|
|
self.mColumnsSpinBox.setValue(cols)
|
|
self.mColumnsSpinBox.blockSignals(False)
|
|
|
|
def rowsChanged(self):
|
|
rows = self.mRowsSpinBox.value()
|
|
if rows <= 0:
|
|
return
|
|
cell_size = self.extent.height() / rows
|
|
cols = max(round(self.extent.width() / cell_size) + 1, 1)
|
|
self.mColumnsSpinBox.blockSignals(True)
|
|
self.mColumnsSpinBox.setValue(cols)
|
|
self.mColumnsSpinBox.blockSignals(False)
|
|
for w in [self.mCellXSpinBox, self.mCellYSpinBox]:
|
|
w.blockSignals(True)
|
|
w.setValue(cell_size)
|
|
w.blockSignals(False)
|
|
|
|
def columnsChanged(self):
|
|
cols = self.mColumnsSpinBox.value()
|
|
if cols < 2:
|
|
return
|
|
cell_size = self.extent.width() / (cols - 1)
|
|
rows = max(round(self.extent.height() / cell_size), 1)
|
|
self.mRowsSpinBox.blockSignals(True)
|
|
self.mRowsSpinBox.setValue(rows)
|
|
self.mRowsSpinBox.blockSignals(False)
|
|
for w in [self.mCellXSpinBox, self.mCellYSpinBox]:
|
|
w.blockSignals(True)
|
|
w.setValue(cell_size)
|
|
w.blockSignals(False)
|
|
|
|
def setValue(self, value):
|
|
try:
|
|
numeric_value = float(value)
|
|
except:
|
|
return False
|
|
|
|
self.mCellXSpinBox.setValue(numeric_value)
|
|
self.mCellYSpinBox.setValue(numeric_value)
|
|
return True
|
|
|
|
def value(self):
|
|
return self.mCellXSpinBox.value()
|
|
|
|
|
|
class PixelSizeWidgetWrapper(WidgetWrapper):
|
|
|
|
def __init__(self, param, dialog, row=0, col=0, **kwargs):
|
|
super().__init__(param, dialog, row, col, **kwargs)
|
|
self.context = dataobjects.createContext()
|
|
|
|
def _panel(self):
|
|
return PixelSizeWidget()
|
|
|
|
def createWidget(self):
|
|
if self.dialogType == DIALOG_STANDARD:
|
|
return self._panel()
|
|
else:
|
|
w = QgsDoubleSpinBox()
|
|
w.setShowClearButton(False)
|
|
w.setMinimum(0)
|
|
w.setMaximum(99999999999)
|
|
w.setDecimals(6)
|
|
w.setToolTip(self.tr('Resolution of each pixel in output raster, in layer units'))
|
|
return w
|
|
|
|
def postInitialize(self, wrappers):
|
|
if self.dialogType != DIALOG_STANDARD:
|
|
return
|
|
|
|
for wrapper in wrappers:
|
|
if wrapper.parameterDefinition().name() == self.param.layersData:
|
|
self.setLayers(wrapper.parameterValue())
|
|
wrapper.widgetValueHasChanged.connect(self.layersChanged)
|
|
elif wrapper.parameterDefinition().name() == self.param.extent:
|
|
self.setExtent(wrapper.parameterValue())
|
|
wrapper.widgetValueHasChanged.connect(self.extentChanged)
|
|
|
|
def layersChanged(self, wrapper):
|
|
self.setLayers(wrapper.parameterValue())
|
|
|
|
def setLayers(self, layersData):
|
|
self.widget.setLayers(layersData)
|
|
|
|
def extentChanged(self, wrapper):
|
|
self.setExtent(wrapper.parameterValue())
|
|
|
|
def setExtent(self, extent):
|
|
self.widget.setExtent(extent)
|
|
|
|
def setValue(self, value):
|
|
return self.widget.setValue(value)
|
|
|
|
def value(self):
|
|
return self.widget.value()
|