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FirstPage.py
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FirstPage.py
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import os
import sys
import io
from Page import Page
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QApplication, QMainWindow
from S2 import S2
from Control import Control
from SecondPage import SecondPage
class FirstPage(Page):
def __init__(self):
super().__init__()
self.data_in_table = False
self.setFixedSize(self.size())
self.setupUi()
def setupUi(self):
about = self.menubar.addAction("About")
about.triggered.connect(self.infoAbout)
self.lineEdit = QtWidgets.QLineEdit(self)
self.lineEdit.setGeometry(QtCore.QRect(70, 125, 360, 20))
self.lineEdit.setObjectName("lineEdit")
self.Browse = QtWidgets.QPushButton(self)
self.Browse.setGeometry(QtCore.QRect(484, 120, 80, 30))
self.Browse.setText("Browse")
self.Browse.setObjectName("Browse")
self.Browse.clicked.connect(self.browseDirs)
self.Load = QtWidgets.QPushButton(self)
self.Load.setGeometry(QtCore.QRect(590, 120, 80, 30))
self.Load.setText("Load")
self.Load.setObjectName("Load")
self.Load.clicked.connect(self.loadClicked)
self.OK = QtWidgets.QPushButton(self)
self.OK.setGeometry(QtCore.QRect(650, 480, 80, 30))
self.OK.setText("OK")
self.OK.setObjectName("OK")
self.OK.clicked.connect(self.okClicked)
self.scrollArea = QtWidgets.QScrollArea(self)
self.scrollArea.setGeometry(QtCore.QRect(20, 170, 761, 271))
self.scrollArea.setWidgetResizable(True)
self.scrollArea.setObjectName("scrollArea")
self.scrollAreaWidgetContents = QtWidgets.QWidget()
self.scrollAreaWidgetContents.setGeometry(QtCore.QRect(0, 0, 759, 269))
self.scrollAreaWidgetContents.setObjectName("scrollAreaWidgetContents")
self.scrollArea.setWidget(self.scrollAreaWidgetContents)
self.tableWidget = QtWidgets.QTableWidget(self.scrollAreaWidgetContents)
self.tableWidget.setGeometry(QtCore.QRect(10, 10, 741, 241))
self.tableWidget.setColumnCount(11)
self.tableWidget.setObjectName("tableWidget")
self.tableWidget.setHorizontalHeaderItem(0, QtWidgets.QTableWidgetItem("Satellite"))
self.tableWidget.setHorizontalHeaderItem(1, QtWidgets.QTableWidgetItem("Tile ID"))
self.tableWidget.setHorizontalHeaderItem(2, QtWidgets.QTableWidgetItem("Date"))
self.tableWidget.setHorizontalHeaderItem(3, QtWidgets.QTableWidgetItem("Time"))
self.tableWidget.setHorizontalHeaderItem(4, QtWidgets.QTableWidgetItem("Cloud cover (%)"))
self.tableWidget.setHorizontalHeaderItem(5, QtWidgets.QTableWidgetItem("Processing level"))
self.tableWidget.setHorizontalHeaderItem(6, QtWidgets.QTableWidgetItem("NDVI"))
self.tableWidget.setHorizontalHeaderItem(7, QtWidgets.QTableWidgetItem("RSR"))
self.tableWidget.setHorizontalHeaderItem(8, QtWidgets.QTableWidgetItem("RVSI"))
self.tableWidget.setHorizontalHeaderItem(9, QtWidgets.QTableWidgetItem("REIP"))
self.tableWidget.setHorizontalHeaderItem(10, QtWidgets.QTableWidgetItem("Area"))
self.label = QtWidgets.QLabel(self)
self.label.setGeometry(QtCore.QRect(100, 480, 500, 30))
self.label.setText("Please wait until the calculation is complete. This may "
"take several minutes...")
self.label.setObjectName("label")
def browseDirs(self):
if self.lineEdit.text() == "":
dirname = QtWidgets.QFileDialog.getExistingDirectory(self, "Select data directory", QtCore.QDir.rootPath())
dirname = QtCore.QDir.toNativeSeparators(dirname)
if os.path.isdir(dirname):
self.lineEdit.setText(dirname)
Control.dirname = dirname
S2.dirname = dirname
else:
self.lineEdit.setText("")
Control.deleteInstances()
self.data_in_table = False
self.browseDirs()
def loadClicked(self):
if not self.data_in_table:
if self.lineEdit.text() == "":
Control.errorMessage("Please insert your data directory path.")
return
else:
Control.createInstances()
if len(S2.images) == 0:
Control.errorMessage("No satellite images of Sentinel 2 were found.")
else:
self.data_in_table = True
self.createTable()
else:
Control.infoMessage("Data from the input directory have already been loaded.")
def defineArea(self):
shapefile = QtWidgets.QFileDialog.getOpenFileName(self, "Select SHP format", QtCore.QDir.rootPath(), "*.shp")
return shapefile[0]
def createTable(self):
num_rows = len(S2.images)
self.tableWidget.setRowCount(num_rows)
for x in range(0, num_rows):
self.tableWidget.setVerticalHeaderItem(x, QtWidgets.QTableWidgetItem())
for y in range(0, 11):
if y < 6:
attr = self.switch_cols(y)
self.tableWidget.setItem(x, y, QtWidgets.QTableWidgetItem(getattr(S2.images[x], attr)))
elif y == 10:
input_shp = QtWidgets.QTableWidgetItem()
input_shp.setFlags(QtCore.Qt.ItemIsSelectable)
self.tableWidget.setItem(x, y, input_shp)
else:
checkbox = QtWidgets.QTableWidgetItem()
checkbox.setFlags(QtCore.Qt.ItemIsUserCheckable | QtCore.Qt.ItemIsEnabled)
checkbox.setCheckState(QtCore.Qt.Unchecked)
self.tableWidget.setItem(x, y, checkbox)
self.tableWidget.resizeColumnsToContents()
self.tableWidget.itemClicked.connect(self.handleItemClicked)
def handleItemClicked(self, item):
col = item.column()
if 5 < col < 10:
attr = self.switch_VI(col)
if item.checkState() == QtCore.Qt.Checked:
setattr(S2.images[item.row()], attr, True)
else:
setattr(S2.images[item.row()], attr, False)
elif col == 10:
shp_path = self.defineArea()
if shp_path != "":
item.setText(shp_path)
setattr(S2.images[item.row()], "shp_path", shp_path)
self.tableWidget.resizeColumnsToContents()
def okClicked(self):
if self.data_in_table == False:
Control.errorMessage("Please upload satellite imagery from your data folder.")
return
self.OK.setCursor(QtGui.QCursor(QtCore.Qt.BusyCursor))
attrs = ["ndvi", "rsr", "rvsi", "reip"]
attrs_values = []
for image in S2.images:
for attr in attrs:
attrs_values.append(getattr(image, attr))
if True not in attrs_values:
Control.errorMessage("Please select at least one vegetation index to calculate.")
else:
self.getResults()
Control.closeWindow(self, SecondPage())
@staticmethod
def getResults():
stdout = sys.stdout
sys.stdout = io.StringIO()
# get printed values of this part of code:
if S2.createOutDir():
for image in S2.images:
S2.getBands(image)
S2.countValues(image)
# restore sys.stdout
output = sys.stdout.getvalue()
sys.stdout = stdout
results = open(Control.dirname + "/Output_data/ResultMessage.txt", "w")
results.write(output)
results.close()
@staticmethod
def switch_cols(col):
switch = {
0: "satellite",
1: "tile_id",
2: "date",
3: "time",
4: "cloud_cover",
5: "processing_level"
}
return switch.get(col)
@staticmethod
def switch_VI(col):
switch = {
6: "ndvi",
7: "rsr",
8: "rvsi",
9: "reip"
}
return switch.get(col)