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StattoRedistrict.py
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StattoRedistrict.py
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# -*- coding: utf-8 -*-
"""
/***************************************************************************
StattoRedistrict
A QGIS plugin
Easily create political districts of equal population
-------------------
begin : 2018-05-21
git sha : $Format:%H$
copyright : (C) 2018-19 by John Holden, Statto Software LLC
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
"""
from __future__ import print_function
from __future__ import absolute_import
from builtins import str
from builtins import range
from builtins import object
from qgis.PyQt.QtCore import QSettings, QTranslator, qVersion, QCoreApplication, Qt, QFileInfo, QVariant
from qgis.PyQt.QtWidgets import QAction, QDialogButtonBox, QTableWidget, QTableWidgetItem, QFileDialog, QMessageBox, QShortcut
from qgis.PyQt.QtGui import QIcon, QColor, QPalette
from PyQt5.QtGui import QKeySequence
from qgis.core import QgsProject, QgsMessageLog, QgsSymbol, QgsVectorLayer, QgsCategorizedSymbolRenderer, QgsSimpleFillSymbolLayer, QgsRendererCategory, QgsSpatialIndex, QgsField, QgsExpression, QgsFeature, QgsFeatureRequest, QgsGeometry, QgsPointXY, QgsPalLayerSettings, QgsVectorLayerSimpleLabeling, QgsTextFormat, QgsTextBufferSettings
from qgis.gui import QgsMapCanvas, QgsMapToolEmitPoint, QgsMapTool, QgsMapToolIdentifyFeature
from random import randrange
from . import resources
import csv
import locale
import os
import glob
# Import the code for the DockWidget
from .StattoRedistrict_dockwidget import StattoRedistrictDockWidget
from .StattoRedistrict_attrdockwidget import StattoRedistrictAttrDockWidget
from .StattoRedistrict_dlgparameter import StattoRedistrictDlgParameter
from .StattoRedistrict_dlgtoolbox import StattoRedistrictDlgToolbox
from .StattoRedistrict_dlgelectorates import StattoRedistrictDlgElectorates
from .StattoRedistrict_dlgplanmanager import StattoRedistrictDlgPlanManager
from .StattoRedistrict_dlgpreview import StattoRedistrictDlgPreview
import os.path
import gc
#for thousands separators
locale.setlocale(locale.LC_ALL, '')
#define our list containers
dataFieldList = [] #the list of fields used by the currently active project
#dataFieldMasterList = [] #the list of fields from all projects on the layer, for proper save/load mechanism. now deprecated
dataPlanList = [] #the list of plans on all projects on the layer, for proper save/load mechanism
locked = {} #whether a plan is locked
districtId = {} #a lookup table of district ID to name
# IDs are used as much as possible, but name is stored on the table
districtName = {} #lookup table of district name to ID
distPop = {} #the population of the district ID
distPop2 = {} #the population of the district ID, field number two
planManagerList = [] #list of plans for the plan manager
activePlanName = '' #the name of the currently active loaded plan
plansInDirectory = {} #a dictionary of saved redistricting plans in the current directory (filename-plan name)
#define our DataField class
#this is used to hold the user defined columns in the plan
class DataField(object):
name = None
plan = None
type = 0
total_sum = 0
field_sum = []
preview_dict = {} #container for the previewer
def __init__(self, values):
self.name = values[0]
self.plan = values[2]
if values[1] == 'Sum' or values[1] == 1:
self.type = 1
elif values[1] == '% of Dist. Pop' or values[1] == 2:
self.type = 2
elif values[1] == '% of Total Pop' or values[1] == 3:
self.type = 3
elif values[1] == '% of Dist. Pop 2' or values[1] == 5:
self.type = 5
elif values[1] == 'Population' or values[1] == 99:
self.type = 99
else:
self.type = 4
self.field_sum = []
print('appending ' + self.name)
dataFieldList.append(self)
#the redistrictingPlan object is used to load and save different plans
class redistrictingPlan(object):
name = None
layerName = None
districts = 0
totalpop = 0
targetpop = 0
targetpoppct = 0
targetpophigher = 0
targetpoplower = 0
totalpop2 = 0
targetpop2 = 0
targetpop2pct = 0
targetpop2higher = 0
targetpop2lower = 0
popfield = ''
popfield2 = ''
distfield = ''
geofield = ''
dataFieldList = []
districtName = {}
locked = {}
saveFileName = ''
def __init__(self):
self.dataFieldList = []
self.districtName = {}
self.districtId = {}
dataPlanList.append(self)
class StattoRedistrict(object):
"""QGIS Plugin Implementation."""
def __init__(self, iface):
"""Constructor.
:param iface: An interface instance that will be passed to this class
which provides the hook by which you can manipulate the QGIS
application at run time.
:type iface: QgisInterface
"""
# Save reference to the QGIS interface
self.iface = iface
# QgsMapTool.__init(self, self.iface.mapCanvas())
self.canvas = self.iface.mapCanvas()
self.canvas.setMouseTracking(True)
# initialize plugin directory
self.plugin_dir = os.path.dirname(__file__)
# initialize locale
locale = QSettings().value('locale/userLocale')[0:2]
locale_path = os.path.join(
self.plugin_dir,
'i18n',
'StattoRedistrict_{}.qm'.format(locale))
if os.path.exists(locale_path):
self.translator = QTranslator()
self.translator.load(locale_path)
if qVersion() > '4.3.3':
QCoreApplication.installTranslator(self.translator)
# Declare instance attributes
self.actions = []
self.menu = self.tr(u'&Statto Software Redistricter')
# TODO: We are going to let the user set this up in a future iteration
self.toolbar = self.iface.addToolBar(u'StattoRedistrict')
self.toolbar.setObjectName(u'StattoRedistrict')
#print "** INITIALIZING StattoRedistrict"
# variables to initialise
self.pluginIsActive = False
self.dockwidget = None #variable for the main dock
self.attrdockwidget = None #variable for the attribute table dock
self.dlgparameters = None #variable for the parameters dialog
self.dlgtoolbox = None #variable for the toolbox dialog
self.dlgelectorates = None #variable for the electorates dialog
self.featIdentTool = None #make sure we can use the identify tool in the code
self.districts = None #number of districts in the tool
self.activedistrict = '1' #which district is active. We use string literals
self.activeLayer = None #which layer is active - which layer we're reapportioning
self.popfield = None #the population field in the database
self.popfield2 = None #the secondary population field in the database
self.usepopfield2 = 0
self.usepopfield2tolerance = 0
self.distfield = None #the district field in the database
self.geofield = None
self.totalpop = 0 #the total population
self.totalpop2 = 0
self.targetpop = 0 #the target population
self.targetpoppct = 0 #target population percentage tolerance
self.targetpoplower = 0 #target pop lower bound
self.targetpophigher = 0 #target pop upper bound
self.targetpop2 = 0 #the target population
self.targetpop2pct = 0 #target population percentage tolerance
self.targetpop2lower = 0 #target pop lower bound
self.targetpop2higher = 0 #target pop upper bound
self.planName = ''
self.oldPlanName = '' #if you start to load a new plan, but then you cancel
self.saveFileName = ''
self.flagNewPlan = 0
self.spatialIndex = None
self.activePlan = None
self.undoAttr = {}
# noinspection PyMethodMayBeStatic
def tr(self, message):
"""Get the translation for a string using Qt translation API.
We implement this ourselves since we do not inherit QObject.
:param message: String for translation.
:type message: str, QString
:returns: Translated version of message.
:rtype: QString
"""
# noinspection PyTypeChecker,PyArgumentList,PyCallByClass
return QCoreApplication.translate('StattoRedistrict', message)
def add_action(
self,
icon_path,
text,
callback,
enabled_flag=True,
add_to_menu=True,
add_to_toolbar=True,
status_tip=None,
whats_this=None,
parent=None):
"""Add a toolbar icon to the toolbar.
:param icon_path: Path to the icon for this action. Can be a resource
path (e.g. ':/plugins/foo/bar.png') or a normal file system path.
:type icon_path: str
:param text: Text that should be shown in menu items for this action.
:type text: str
:param callback: Function to be called when the action is triggered.
:type callback: function
:param enabled_flag: A flag indicating if the action should be enabled
by default. Defaults to True.
:type enabled_flag: bool
:param add_to_menu: Flag indicating whether the action should also
be added to the menu. Defaults to True.
:type add_to_menu: bool
:param add_to_toolbar: Flag indicating whether the action should also
be added to the toolbar. Defaults to True.
:type add_to_toolbar: bool
:param status_tip: Optional text to show in a popup when mouse pointer
hovers over the action.
:type status_tip: str
:param parent: Parent widget for the new action. Defaults None.
:type parent: QWidget
:param whats_this: Optional text to show in the status bar when the
mouse pointer hovers over the action.
:returns: The action that was created. Note that the action is also
added to self.actions list.
:rtype: QAction
"""
icon = QIcon(":/plugins/qgis3redistricter-master/icon.png")
action = QAction(icon, text, parent)
action.triggered.connect(callback)
action.setEnabled(enabled_flag)
if status_tip is not None:
action.setStatusTip(status_tip)
if whats_this is not None:
action.setWhatsThis(whats_this)
if add_to_toolbar:
self.toolbar.addAction(action)
if add_to_menu:
self.iface.addPluginToMenu(
self.menu,
action)
self.actions.append(action)
return action
def initGui(self):
"""Create the menu entries and toolbar icons inside the QGIS GUI."""
icon_path = ':/plugins/StattoRedistricter/icon.png'
self.key_action = self.add_action(
icon_path,
text=self.tr(u'Statto Software Redistricter'),
callback=self.run,
parent=self.iface.mainWindow())
#--------------------------------------------------------------------------
def onClosePlugin(self):
"""Cleanup necessary items here when plugin dockwidget is closed"""
#print "** CLOSING StattoRedistrict"
# disconnects
self.attrdockwidget.closingPlugin.disconnect(self.onClosePlugin)
self.dockwidget.closingPlugin.disconnect(self.onClosePlugin)
# remove this statement if dockwidget is to remain
# for reuse if plugin is reopened
# Commented next statement since it causes QGIS crashe
# when closing the docked window:
# self.dockwidget = None
self.pluginIsActive = False
def unload(self):
"""Removes the plugin menu item and icon from QGIS GUI."""
#print "** UNLOAD StattoRedistrict"
for action in self.actions:
self.iface.removePluginMenu(
self.tr(u'&Statto Software Redistricter'),
action)
self.iface.removeToolBarIcon(action)
# remove the toolbar
del self.toolbar
#--------------------------------------------------------------------------
def run(self):
"""Run method that loads and starts the plugin"""
if not self.pluginIsActive:
self.pluginIsActive = True
self.dockwidget = None #variable for the main dock
self.attrdockwidget = None #variable for the attribute table dock
self.dlgparameters = None #variable for the parameters dialog
self.dlgtoolbox = None #variable for the toolbox dialog
self.dlgelectorates = None #variable for the electorates dialog
self.dlgplanmanager = None #variable for the electorates dialog
self.dlgpreview = None #variable for the preview dialog
self.featIdentTool = None #make sure we can use the identify tool in the code
self.districts = None #number of districts in the tool
self.activedistrict = '1' #which district is active. We use string literals
self.activeLayer = None #which layer is active - which layer we're reapportioning
self.popfield = None #the population field in the database
self.popfield2 = None #the secondary population field in the database
self.distfield = None #the district field in the database
self.geofield = None
self.totalpop = 0 #the total population
self.targetpop = 0 #the target population
self.targetpop2 = 0 #the target population
self.targetpoppct = 0 #target population percentage tolerance
self.targetpop2pct = 0 #target population percentage tolerance
self.targetpoplower = 0 #target pop lower bound
self.targetpophigher = 0 #target pop upper bound
self.targetpop2lower = 0 #target pop lower bound
self.targetpop2higher = 0 #target pop upper bound
self.planName = '' #the name of the active plan
self.flagNewPlan = 0 #determines what should happen with saving/loading
self.activePlan = None #the active plan
self.labelLayer = None
self.undoAttr = {}
self.visibleFeats = []
self.defaultBG = QColor(QPalette().color(QPalette.Normal, QPalette.Window))
#print "** STARTING StattoRedistrict"
# dockwidget may not exist if:
# first run of plugin
# removed on close (see self.onClosePlugin method)
if self.dockwidget == None:
# Create the dockwidget (after translation) and keep reference
self.dockwidget = StattoRedistrictDockWidget()
if self.attrdockwidget == None:
self.attrdockwidget = StattoRedistrictAttrDockWidget()
if self.dlgparameters == None:
self.dlgparameters = StattoRedistrictDlgParameter()
if self.dlgtoolbox == None:
self.dlgtoolbox = StattoRedistrictDlgToolbox()
if self.dlgelectorates == None:
self.dlgelectorates = StattoRedistrictDlgElectorates()
if self.dlgplanmanager == None:
self.dlgplanmanager = StattoRedistrictDlgPlanManager()
if self.dlgpreview == None:
self.dlgpreview = StattoRedistrictDlgPreview()
# connect to provide cleanup on closing of dockwidget
self.dockwidget.closingPlugin.connect(self.onClosePlugin)
#provide other gui options
self.dockwidget.btnParameters.clicked.connect(self.openPlanManager)
self.dockwidget.btnUpdate.clicked.connect(self.updateAttributes)
self.dockwidget.btnUpdate.shortcut = QShortcut(QKeySequence("`"), self.dockwidget.btnUpdate)
self.dockwidget.btnUpdate.shortcut.activated.connect(self.updateAttributes)
self.dockwidget.btnEraser.clicked.connect(self.setEraser)
self.dockwidget.btnSelect.clicked.connect(self.updateSelectedElectorate)
self.dockwidget.btnToolbox.clicked.connect(self.openToolbox)
self.dockwidget.sliderDistricts.valueChanged.connect(self.updateDistrict)
self.dockwidget.btnActiveDistrictMinus.clicked.connect(self.updateDecreaseDistrictIncrement)
self.dockwidget.btnActiveDistrictPlus.clicked.connect(self.updateIncreaseDistrictIncrement)
self.dockwidget.btnActiveDistrictMinus.shortcut = QShortcut(QKeySequence("2"), self.dockwidget.btnActiveDistrictMinus)
self.dockwidget.btnActiveDistrictMinus.shortcut.activated.connect(self.updateDecreaseDistrictIncrement)
self.dockwidget.btnActiveDistrictPlus.shortcut = QShortcut(QKeySequence("3"), self.dockwidget.btnActiveDistrictPlus)
self.dockwidget.btnActiveDistrictPlus.shortcut.activated.connect(self.updateIncreaseDistrictIncrement)
self.dockwidget.btnUndo.clicked.connect(self.undoLast)
self.dockwidget.btnPreview.clicked.connect(self.previewSelection)
self.dockwidget.btnUpdate.shortcut = QShortcut(QKeySequence("1"), self.dockwidget.btnPreview)
self.dockwidget.btnUpdate.shortcut.activated.connect(self.previewSelection)
self.dockwidget.btnFindDistrict.clicked.connect(self.selectByActiveDistrict)
self.dockwidget.btnGeoSelect.clicked.connect(self.selectByGeography)
self.dockwidget.cmbGeoField.currentIndexChanged.connect(self.updateGeographyColumn)
self.dockwidget.btnFloodFill.clicked.connect(self.selectByFloodFill)
self.dockwidget.btnCurrentPlan.clicked.connect(self.loadActivePlanParametersDialog)
self.dockwidget.btnRefreshAttributes.clicked.connect(self.getVisibleFeatureAttributes)
self.attrdockwidget.tblPop.itemClicked.connect(self.updateLockedFields)
self.dlgparameters.cmbActiveLayer.currentIndexChanged.connect(self.updateFields)
#parameters event triggers
self.dlgparameters.boxButton.button(QDialogButtonBox.Ok).clicked.connect(self.updatePanelAndSaveParameters)
self.dlgparameters.boxButton.button(QDialogButtonBox.Cancel).clicked.connect(self.closeParameters)
self.dlgparameters.btnAddDataField.clicked.connect(self.addDataField)
self.dlgparameters.btnRemoveDataField.clicked.connect(self.removeDataField)
self.dlgparameters.btnCreateNewField.clicked.connect(self.createNewDistrictField)
#toolbox event triggers
self.dlgtoolbox.btnExportToCsv.clicked.connect(self.exportToCsv)
self.dlgtoolbox.btnLabelLayer.clicked.connect(self.createLabelLayer)
self.dlgtoolbox.btnRename.clicked.connect(self.renameElectorates)
self.dlgtoolbox.btnSelectUnassigned.clicked.connect(self.selectUnassigned)
self.dlgtoolbox.btnRefreshAttributeTable.clicked.connect(self.refreshTable)
self.dlgtoolbox.btnExportCrosstabToCsv.clicked.connect(self.exportCrosstabToCsv)
self.dlgelectorates.boxButton.button(QDialogButtonBox.Ok).clicked.connect(self.updateElectorates)
self.dlgplanmanager.btnLoadPlan.clicked.connect(self.loadParametersDialog)
self.dlgplanmanager.btnNewPlan.clicked.connect(self.newParametersDialog)
# show the dockwidget
# TODO: fix to allow choice of dock location
self.iface.addDockWidget(Qt.RightDockWidgetArea, self.dockwidget)
self.dockwidget.show()
self.iface.addDockWidget(Qt.RightDockWidgetArea, self.attrdockwidget)
self.attrdockwidget.show()
self.iface.addDockWidget(Qt.RightDockWidgetArea, self.dlgpreview)
def restoreWidgets():
self.attrdockwidget.show()
self.attrdockwidget.show()
def canvasReleaseEvent(self, event):
"""Deprecated"""
QgsMessageLog.logMessage("released!")
with edit(self.activeLayer):
selection = self.activeLayer.selectedFeatures()
for feature in selection:
feature[self.distfield] = self.activedistrict
def getVisibleFeatureAttributes(self):
layer = self.activeLayer
rect = self.canvas.extent()
request = QgsFeatureRequest().setFilterRect(rect)
if layer:
selected_feats = layer.getFeatures(request)
idx = layer.fields().indexFromName(self.distfield)
attr = [ str(feat.attributes()[idx]) for feat in selected_feats ]
self.visibleFeats = list(dict.fromkeys(attr))
self.updateTable()
def updateAttributes(self):
"""Updates the attributes of the the data table when the Update Selected Polygons feature is clicked"""
self.dockwidget.btnUpdate.setEnabled(False)
global locked
self.undoAttr.clear()
gc.collect()
self.dockwidget.lblPreview.setText('')
counter = 0 #was originally in the if statement, but this crashes the status bar update if locked
totfeatures = self.activeLayer.selectedFeatureCount() #counts the number of features
if locked[districtName[self.activedistrict]] == 0:
ids = self.activeLayer.selectedFeatureIds()
request = QgsFeatureRequest().setFlags(QgsFeatureRequest.NoGeometry)
request.setFilterFids(ids)
field_id = self.activeLayer.fields().indexFromName(self.distfield)
self.activeLayer.startEditing()
self.activeLayer.beginEditCommand( 'updating features' )
self.iface.statusBarIface().showMessage(u"Updating features... ")
field_id = self.activeLayer.fields().indexFromName(self.distfield)
#after a certain point, see if it's faster to bifurcate attribute updates
for feature in self.activeLayer.getFeatures(request):
try:
if locked[str(feature[self.distfield])] == 0:
self.undoAttr[feature.id()] = feature[self.distfield]
self.updateFeatureValue(feature, districtName[self.activedistrict], field_id)
# self.updateFeatureValuev2(feature, districtName[self.activedistrict], field_id)
except:
self.updateFeatureValue(feature, districtName[self.activedistrict], field_id)
# self.updateFeatureValuev2(feature, districtName[self.activedistrict], field_id)
counter = counter + 1
if counter % 250 == 0:
self.activeLayer.endEditCommand()
self.activeLayer.commitChanges()
self.activeLayer.startEditing()
self.activeLayer.beginEditCommand( 'updating features' )
self.iface.statusBarIface().showMessage( u"Still updating features... (" + str(counter) + " updated)" )
QCoreApplication.processEvents()
# QgsMessageLog.logMessage(str(feature.id) + " changed to: " + str(self.activedistrict) + " on " + str(field_id))
self.activeLayer.endEditCommand()
self.iface.statusBarIface().showMessage( u"Updating population table" )
QCoreApplication.processEvents()
self.updateFieldValues()
self.iface.statusBarIface().showMessage( u"Committing changes to table" )
QCoreApplication.processEvents()
self.activeLayer.commitChanges()
self.activeLayer.removeSelection()
self.updateTable()
self.iface.mapCanvas().refresh()
self.dockwidget.btnUndo.setEnabled(True)
self.iface.mainWindow().statusBar().showMessage( u"Updated " + str(counter) + " features." )
self.dockwidget.btnUpdate.setEnabled(True)
gc.collect()
def previewSelection(self):
global locked
global distPop
prevpop = 0
prevpoplock = 0
newprevpop = 0
strActiveDistPop = ''
previewDistricts = {}
gc.collect()
for d in dataFieldList:
d.preview_dict.clear()
if str(self.activedistrict) != "0" and str(self.activedistrict) != "NULL":
previewDistricts[str(districtName[self.activedistrict])] = distPop[self.activedistrict]
curselpop = distPop[self.activedistrict]
for d in dataFieldList:
d.preview_dict[str(districtName[self.activedistrict])] = 0
selection = self.activeLayer.selectedFeatures()
for feature in selection:
field_id = self.activeLayer.fields().indexFromName(self.distfield)
prevpop = prevpop + feature[self.popfield]
if str(feature[self.distfield]) != str(districtName[self.activedistrict]):
prevpoplock = prevpoplock + feature[self.popfield]
featId = str(feature[self.distfield])
if featId == 'NULL':
featId = '0'
if locked[featId] == 0:
newprevpop = newprevpop + feature[self.popfield]
if str(feature[self.distfield]) in previewDistricts.keys():
previewDistricts[str(feature[self.distfield])] = previewDistricts[str(feature[self.distfield])] - feature[self.popfield]
previewDistricts[str(districtName[self.activedistrict])] = previewDistricts[str(districtName[self.activedistrict])] + feature[self.popfield]
else:
# commented out code here which wasn't working, but didn't delete it just in case - you can probably do so safely
# print(str(int(districtId[feature[self.distfield]])))
try:
#avoids errors when values are null
previewDistricts[str(feature[self.distfield])] = distPop[int(districtId[str(feature[self.distfield])])]
previewDistricts[str(feature[self.distfield])] = previewDistricts[str(feature[self.distfield])] - feature[self.popfield]
# previewDistricts[str(feature[self.distfield])] = distPop[int(districtId[feature[self.distfield]])] - feature[self.popfield]
previewDistricts[str(districtName[self.activedistrict])] = previewDistricts[str(districtName[self.activedistrict])] + feature[self.popfield]
except:
previewDistricts['0'] = distPop[0] - feature[self.popfield]
previewDistricts[str(districtName[self.activedistrict])] = previewDistricts[str(districtName[self.activedistrict])] + feature[self.popfield]
"""
for d in dataFieldList:
if str(feature[self.distfield]) in d.preview_dict.items():
d.preview_dict[str(feature[self.distfield])] = d.preview_dict[str(feature[self.distfield])] - d.field_sum[int(districtId[str(feature[self.distfield])])]
d.preview_dict[str(districtName[self.activedistrict])] = d.preview_dict[str(districtName[self.activedistrict])] + d.field_sum[str(districtId[self.activedistrict])]
else:
try:
d.preview_dict[str(feature[self.distfield])] = (d.field_sum[int(districtId[str(feature[self.distfield])])] * -1)
d.preview_dict[str(districtName[self.activedistrict])] = d.preview_dict[str(districtName[self.activedistrict])] + d.field_sum[str(districtId[self.activedistrict])]
except:
d.preview_dict[str(feature[self.distfield])] = (d.field_sum[0] * -1)
d.preview_dict[str(districtName[self.activedistrict])] = d.preview_dict[str(districtName[self.activedistrict])] + d.field_sum[str(districtId[self.activedistrict])]
"""
if self.activedistrict > 0:
strActiveDistPop = ', in district: ' + str(prevpop - prevpoplock) + ', active district +' + str(newprevpop) + ' (' + str(distPop[self.activedistrict]) + '→' + str(distPop[self.activedistrict] + newprevpop) + ')'
self.dockwidget.lblPreview.setText('in selection:' + str(prevpop) + strActiveDistPop)
self.dlgpreview.tblPreview.setColumnCount(5)
self.dlgpreview.tblPreview.setHorizontalHeaderLabels(['District','New Pop','Old Pop','Change','Dev%'])
self.dlgpreview.show()
counter = 0
for p in previewDistricts:
self.dlgpreview.tblPreview.setRowCount(counter+1)
self.dlgpreview.tblPreview.setItem(counter,0,QTableWidgetItem(str(p)))
self.dlgpreview.tblPreview.setItem(counter,1,QTableWidgetItem(str('{:,}'.format(previewDistricts[p]))))
# try:
self.dlgpreview.tblPreview.setItem(counter,2,QTableWidgetItem(str('{:,}'.format(distPop[int(districtId[p])]))))
self.dlgpreview.tblPreview.setItem(counter,3,QTableWidgetItem(str('{:,}'.format(previewDistricts[p] - distPop[int(districtId[p])]))))
# except:
# self.dlgpreview.tblPreview.setItem(counter,2,QTableWidgetItem(str('{:,}'.format(distPop[0])))(
# self.dlgpreview.tblPreview.setItem(counter,3,QTableWidgetItem(str('{:,}'.format(previewDistricts[p] - distPop[0]))))
try:
if self.targetpop > 0:
self.dlgpreview.tblPreview.setItem(counter,4,QTableWidgetItem(str(round((float(float(previewDistricts[p]) / float(self.targetpop)) * 100)-100,2))+'%'))
else:
self.dlgpreview.tblPreview.setItem(counter,4,QTableWidgetItem('0.00%'))
except:
self.dlgpreview.tblPreview.setItem(counter,4,QTableWidgetItem('0.00%'))
counter = counter + 1
self.dlgpreview.tblPreview.resizeColumnToContents(0)
self.dlgpreview.tblPreview.resizeColumnToContents(1)
self.dlgpreview.tblPreview.resizeColumnToContents(2)
self.dlgpreview.tblPreview.resizeColumnToContents(3)
self.dlgpreview.tblPreview.resizeColumnToContents(4)
def undoLast(self):
self.activeLayer.startEditing()
field_id = self.activeLayer.fields().indexFromName(self.distfield)
for feature, value in self.undoAttr.items():
self.updateFeatureValue(self.activeLayer.getFeature(feature), value, field_id)
self.activeLayer.commitChanges()
self.undoAttr.clear()
gc.collect()
self.updateTable()
self.dockwidget.btnUndo.setEnabled(False)
def updateFeatureValuev2(self, feature, change_to, field_id):
self.activeLayer.changeAttributeValue(feature.id(),field_id,change_to)
newId = int(districtId[str(change_to)])
try:
distPop[newId] = distPop[newId] + feature[self.popfield]
# QgsMessageLog.logMessage("to: " + str(newId))
except:
try:
distPop[0] = distPop[0] + feature[self.popfield]
except:
errors = 1
# def updateAttributesUsingSQL(self):
# for p in (0, self.districts+1):
# district_pop = QgsExpression('sum(')
def updateFeatureValue(self, feature, change_to,field_id):
# QgsMessageLog.logMessage("updating feature value")
global distPop
global distPop2
# field_id = self.activeLayer.fields().indexFromName(self.distfield)
try:
distPop[int(districtId[str(feature[self.distfield])])] = distPop[int(districtId[str(feature[self.distfield])])] - feature[self.popfield] # feature[self.popfield]
# QgsMessageLog.logMessage("from: " + str(districtId[str(feature[self.distfield])]))
except:
try:
distPop[0] = distPop[0] - feature[self.popfield]
# QgsMessageLog.logMessage("from: zero")
except:
errors = 1
# QgsMessageLog.logMessage(self.distfield + " failed on load")
if self.popfield2:
try:
distPop2[int(districtId[str(feature[self.distfield])])] = distPop2[int(districtId[str(feature[self.distfield])])] - feature[self.popfield2] # feature[self.popfield]
# QgsMessageLog.logMessage("from: " + str(districtId[str(feature[self.distfield])]))
except:
try:
distPop2[0] = distPop2[0] - feature[self.popfield2]
# QgsMessageLog.logMessage("from: zero")
except:
errors = 1
# QgsMessageLog.logMessage(self.distfield + " failed on load")
for d in dataFieldList:
try:
d.field_sum[int(districtId[str(feature[self.distfield])])] = d.field_sum[int(districtId[str(feature[self.distfield])])] - feature[d.name]
d.total_sum = d.total_sum - feature[d.name]
except:
d.field_sum[0] = d.field_sum[0] - feature[d.name]
d.total_sum = d.total_sum - feature[d.name]
# QgsMessageLog.logMessage(str(districtId[str(feature[self.distfield])]))
self.activeLayer.changeAttributeValue(feature.id(),field_id,change_to)
if str(change_to) != 'NULL':
newId = int(districtId[str(change_to)])
else:
newid = 'NULL'
try:
distPop[newId] = distPop[newId] + feature[self.popfield]
# QgsMessageLog.logMessage("to: " + str(newId))
except:
try:
distPop[0] = distPop[0] + feature[self.popfield]
# QgsMessageLog.logMessage("to: zer0")
except:
errors = 1
QgsMessageLog.logMessage(self.distfield + " failed on load")
if self.popfield2 == 1:
try:
distPop2[newId] = distPop2[newId] + feature[self.popfield2]
# QgsMessageLog.logMessage("to: " + str(newId))
except:
try:
distPop2[0] = distPop2[0] + feature[self.popfield2]
# QgsMessageLog.logMessage("to: zer0")
except:
errors = 1
# QgsMessageLog.logMessage(self.distfield + " failed on load")
for d in dataFieldList:
try:
d.field_sum[newId] = d.field_sum[newId] + feature[d.name]
d.total_sum = d.total_sum + feature[d.name]
except:
d.field_sum[0] = d.field_sum[0] + feature[d.name]
d.total_sum = d.total_sum + feature[d.name]
def deletePlan(self):
if self.dlgplanmanager.lstRedistrictingPlans.selectedItems():
for l in self.dlgplanmanager.lstRedistrictingPlans.selectedIndexes():
layerName = l
else:
return
if layerName != None:
layers = planManagerList[layerName.row()].split('|')
os.remove(layers[1])
else:
return
self.loadParametersDialog()
def openPlanManager(self):
global planManagerList
self.flagNewPlan = 0
self.dlgplanmanager.show()
self.dlgplanmanager.lstRedistrictingPlans.clear()
planManagerList = []
# old QGIS 2 code
# layers = self.iface.legendInterface().layers()
layers = [tree_layer.layer() for tree_layer in QgsProject.instance().layerTreeRoot().findLayers()]
layer_list = []
for layer in layers:
fileDir = os.path.splitext(layer.source())
# print('Source: ' + layer.source())
for layerDir in fileDir:
for ffile in glob.glob(str(layerDir) + '*qgis.red'):
print(' checking file ' + ffile)
# try:
f = open(ffile,'r')
planStatus = 0
for line in f:
# QgsMessageLog.logMessage(str(line) + ' ' + str(planStatus))
line = line.strip()
lineList = line.split('\t')
if lineList[0] == 'New Plan' and planStatus == 0:
print(' plan status 1')
planStatus = 1
elif lineList[0] == 'planname' and planStatus == 1:
print(' plan status 2')
planStatus = 2
self.dlgplanmanager.lstRedistrictingPlans.addItem(layer.name() + ' (' + str(lineList[1]) + ')')
strLayerName = str(layer.name())
planManagerList.append(strLayerName + '|' + str(ffile))
elif lineList[0] == 'End Plan':
planStatus = 0
f.close()
# except:
# QgsMessageLog.logMessage("No plan found for layer " + layer.name())
self.dlgparameters.cmbActiveLayer.clear()
self.dlgparameters.cmbActiveLayer.addItems(layer_list)
if self.activeLayer != None:
self.dlgparameters.cmbActiveLayer.setCurrentIndex(self.dlgparameters.cmbActiveLayer.findText(self.activeLayer.name()))
self.setParameters()
def newParametersDialog(self):
#creating a new plan
self.flagNewPlan = 1
self.dlgplanmanager.hide()
self.dlgparameters.show()
layers = [tree_layer.layer() for tree_layer in QgsProject.instance().layerTreeRoot().findLayers()]
layer_list = []
for layer in layers:
layer_list.append(layer.name())
self.dlgparameters.cmbActiveLayer.clear()
self.dlgparameters.cmbActiveLayer.addItems(layer_list)
if self.activeLayer != None:
self.dlgparameters.cmbActiveLayer.setCurrentIndex(self.dlgparameters.cmbActiveLayer.findText(self.activeLayer.name()))
self.setParameters()
def loadParametersDialog(self):
if self.dlgplanmanager.lstRedistrictingPlans.selectedItems():
for l in self.dlgplanmanager.lstRedistrictingPlans.selectedIndexes():
layerName = l
else:
return
layers = []
if layerName != None:
layers = planManagerList[layerName.row()].split('|')
l = QgsProject.instance().mapLayersByName(layers[0])
self.activeLayer = l[0]
self.loadParameters(layers[1])
if self.activeLayer:
self.dlgplanmanager.hide()
self.dlgparameters.show()
projectLayers = [tree_layer.layer() for tree_layer in QgsProject.instance().layerTreeRoot().findLayers()]
layer_list = []
for layer in projectLayers:
layer_list.append(layer.name())
self.dlgparameters.cmbActiveLayer.clear()
self.dlgparameters.cmbActiveLayer.addItems(layer_list)
self.dlgparameters.chkStyleMap.setChecked(False)
self.initialiseActivePlan(layers[1])
self.dlgparameters.cmbActiveLayer.setCurrentIndex(self.dlgparameters.cmbActiveLayer.findText(self.activeLayer.name()))
self.setParameters()
self.updateFieldTable(layers[1])
else:
#error message this
return
def loadActivePlanParametersDialog(self):
if self.activeLayer:
self.dlgplanmanager.hide()
self.dlgparameters.show()
projectLayers = [tree_layer.layer() for tree_layer in QgsProject.instance().layerTreeRoot().findLayers()]
layer_list = []
for layer in projectLayers:
layer_list.append(layer.name())
self.dlgparameters.cmbActiveLayer.clear()
self.dlgparameters.cmbActiveLayer.addItems(layer_list)
self.dlgparameters.chkStyleMap.setChecked(False)
self.dlgparameters.cmbActiveLayer.setCurrentIndex(self.dlgparameters.cmbActiveLayer.findText(self.activeLayer.name()))
self.setParameters()
def openToolbox(self):
self.dlgtoolbox.cmbCrossTab.clear()
if hasattr(self.activeLayer, 'fields'):
fields = self.activeLayer.fields()
field_names = [field.name() for field in fields]
self.dlgtoolbox.cmbCrossTab.addItems(field_names)
self.dlgtoolbox.show()
def updateLockedFields(self):
QgsMessageLog.logMessage("Locking...")
global locked
locked = {}
locked['NULL'] = 0
counter = 0
for q in range(0,self.districts+1):
locked[str(districtName[q])] = 0
for q in range(0,self.districts+1):
if q == 0 or (self.dockwidget.chkVisible.isChecked() == False) or (self.dockwidget.chkVisible.isChecked() == True and districtName[q] in self.visibleFeats):
r = counter
counter = counter + 1
locked[districtName[r]] = 0
if self.attrdockwidget.tblPop.item(r,1).checkState() == Qt.Checked:
locked[districtName[q]] = 1
QgsMessageLog.logMessage("...locked. " + str(locked))
self.updateDistrict()
def updateGeographyColumn(self):
self.geofield = self.dockwidget.cmbGeoField.currentText()
def saveParametersToFile(self,fileName=None):
global districtName
# global dataPlanList
"""
# try:
f = open(self.activeLayer.srce() + '.qgis.red','w')
f.write('New Plan\n')
f.write('Plan Name\n')
# f.write(dp.name)
f.write('New Redistricting Plan')
f.write('Fields\n')
f.write(str(self.districts) + '\n')
f.write(str(self.totalpop) + '\n')
f.write(str(self.targetpop) + '\n')
f.write(str(self.targetpoppct) + '\n')
f.write(str(self.targetpoplower) + '\n')
f.write(str(self.targetpophigher) + '\n')
f.write(str(self.popfield) + '\n')
f.write(str(self.distfield) + '\n')
f.write(str(self.geofield) + '\n')
counter = 0
for d in dataFieldList:
counter = counter + 1
f.write(str(counter) + '\n')
for d in dataFieldList:
f.write(d.name + '\n')
f.write(str(d.type) + '\n')
f.write(str(len(districtName)) + '\n')
for r in districtName:
f.write(str(districtName[r]) + '\n')
f.write('End Plan')
f.close()
"""
# try:
if fileName == None:
self.activeLayer.source() + '.qgis.red'
f = open(fileName,'w')
dp = self #exceptionally inelegant
f.write('New Plan\n')
f.write('planname\t'+ str(dp.planName) + '\n')
f.write('districts\t' + str(dp.districts) + '\n')
f.write('totalpop\t' + str(dp.totalpop) + '\n')
f.write('targetpop\t' + str(dp.targetpop) + '\n')
f.write('targetpoppct\t' + str(dp.targetpoppct) + '\n')
f.write('targetpoplower\t' + str(dp.targetpoplower) + '\n')
f.write('targetpophigher\t' + str(dp.targetpophigher) + '\n')
f.write('targetpop2\t' + str(dp.targetpop2) + '\n')
f.write('targetpop2pct\t' + str(dp.targetpop2pct) + '\n')
f.write('targetpop2lower\t' + str(dp.targetpop2lower) + '\n')
f.write('targetpop2higher\t' + str(dp.targetpop2higher) + '\n')
f.write('popfield\t' + str(dp.popfield) + '\n')
f.write('popfield2\t' + str(dp.popfield2) + '\n')
f.write('distfield\t' + str(dp.distfield) + '\n')
f.write('geofield\t' + str(dp.geofield) + '\n')
for d in dataFieldList:
writeStr = 'datafield\t' + d.name + '\t' + str(d.type) + '\n'
f.write(writeStr)
f.write('districtnames\t')
for r in districtName:
if districtName[r] != 'NULL':
f.write(str(districtName[r]) + '\t')
f.write('\n')
writeStr = 'locked\t'
for l in locked:
if locked[l] == 1:
writeStr = writeStr + str(l)
f.write(writeStr + '\n')
f.write('End Plan\n')
f.close()
# QgsMessageLog.logMessage("Parameters file saved!")
# except:
# QgsMessageLog.logMessage("Parameters file could not be saved")