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mtl_main.py
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mtl_main.py
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# -*- coding: utf-8 -*-
"""
/***************************************************************************
modisTrackL1L2 mtl_main
A QGIS plugin
This module allows to create Terra/Aqua track at selected date as shapefile;
to create extents of scenes for all track points at day as shapefile;
to define needed scenes for user's vector layer.
Space-track.org can be used for TLE retrieving
-------------------
begin : 2016-01-16
copyright : (C) 2016 by Eduard Kazakov
email : silenteddie@gmail.com
homepage : http://ekazakov.info
***************************************************************************/
/***************************************************************************
* *
* 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 PyQt4.QtGui import QApplication
from ui import modisTrack_main_ui, modisTrack_settings_ui
import mtl_settings
from PyQt4 import QtCore, QtGui
from PyQt4.QtCore import QVariant
from qgis.core import *
from qgis.core import QgsMapLayerRegistry
import resources
import spacetrack_interface
import urllib2
import os, re
import mtl_track_generator
import mtl_extent_generator
import mtl_lib
import datetime
import processing
class MTLMainDlg(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.ui = modisTrack_main_ui.Ui_Dialog()
self.ui.setupUi(self)
self.readyInterface()
# Button's handlers
self.connect(self.ui.closeButton, QtCore.SIGNAL("clicked()"), self.cancel)
self.connect(self.ui.runButton, QtCore.SIGNAL("clicked()"), self.run)
self.connect(self.ui.TLESettingsButton, QtCore.SIGNAL("clicked()"), self.TLESettingsOpen)
self.connect(self.ui.autoTLEButton, QtCore.SIGNAL("clicked()"), self.TLEAuto)
self.connect(self.ui.satellitePositionOutputBrowseButton, QtCore.SIGNAL("clicked()"), self.satellitePositionOutputBrowse)
self.connect(self.ui.extentPolygonsOutputBrowseButton, QtCore.SIGNAL("clicked()"), self.extentOutputBrowse)
#Fill products
try:
dirPath = os.path.dirname(os.path.abspath(__file__))
products_file = open(dirPath + '\\' +'products.txt','r')
for line in products_file:
self.ui.MODISProductComboBox.addItem(re.sub("^\s+|\n|\r|\s+$", '', line))
except:
pass
#Date changing listener
self.ui.orbitDate.dateChanged.connect(self.orbitDateChanged)
#Product changing listener
self.connect(self.ui.MODISProductComboBox, QtCore.SIGNAL("currentIndexChanged(const QString&)"), self.ProductChanged)
#Checkbox listeners
self.connect(self.ui.checkoutForObjectsCheckBox, QtCore.SIGNAL("stateChanged(int)"), self.checkoutForObjectsStateChanged)
self.connect(self.ui.satellitePositionOutputCheckBox, QtCore.SIGNAL("stateChanged(int)"), self.satellitePositionOutputStateChanged)
self.connect(self.ui.extentPolygonsOutputCheckBox, QtCore.SIGNAL("stateChanged(int)"), self.extentOutputStateChanged)
# Date to today-1
self.ui.orbitDate.setDate(QtCore.QDate.currentDate().addDays(-1))
#Fill layers combobox
vectorLayers = [layer.name() for layer in QgsMapLayerRegistry.instance().mapLayers().values() if
(layer.type() == QgsMapLayer.VectorLayer)]
self.ui.layersComboBox.addItems(vectorLayers)
def satellitePositionOutputBrowse(self):
filename = QtGui.QFileDialog.getSaveFileName(self, 'Save file', '', '*.shp')
if filename:
self.ui.satellitePositionOutputLine.setText(filename)
pass
def extentOutputBrowse(self):
filename = QtGui.QFileDialog.getSaveFileName(self, 'Save file', '', '*.shp')
if filename:
self.ui.extentPolygonsOutputLine.setText(filename)
pass
def orbitDateChanged (self):
userDate = self.ui.orbitDate.date()
userYear = userDate.year()
userDayOfYear = str(userDate.dayOfYear())
userDayOfYear = '0'*(3-len(userDayOfYear)) + userDayOfYear
self.ui.MODISProductLinkLabel.setText("<a href = \'ftp://ladsweb.nascom.nasa.gov/allData/6/" + self.ui.MODISProductComboBox.currentText() + "/" + str(userYear) + "/" + str(userDayOfYear)+"/\'>Product link</a>")
self.ui.MODISGeorefLinkLabel.setText("<a href = \'ftp://ladsweb.nascom.nasa.gov/allData/6/MOD03/" + str(userYear) + "/" + str(userDayOfYear)+"/\'>Georeferencing files link</a>")
def ProductChanged (self):
userDate = self.ui.orbitDate.date()
userYear = userDate.year()
userDayOfYear = str(userDate.dayOfYear())
userDayOfYear = '0'*(3-len(userDayOfYear)) + userDayOfYear
self.ui.MODISProductLinkLabel.setText("<a href = \'ftp://ladsweb.nascom.nasa.gov/allData/6/" + self.ui.MODISProductComboBox.currentText() + "/" + str(userYear) + "/" + str(userDayOfYear)+"/\'>Product link</a>")
self.ui.MODISGeorefLinkLabel.setText("<a href = \'ftp://ladsweb.nascom.nasa.gov/allData/6/MOD03/" + str(userYear) + "/" + str(userDayOfYear)+"/\'>Georeferencing files link</a>")
def checkoutForObjectsStateChanged (self):
if self.ui.checkoutForObjectsCheckBox.isChecked():
self.ui.layersComboBox.setEnabled(True)
else:
self.ui.layersComboBox.setDisabled(True)
def satellitePositionOutputStateChanged(self):
if self.ui.satellitePositionOutputCheckBox.isChecked():
self.ui.satellitePositionOutputLine.setEnabled(True)
self.ui.satellitePositionOutputBrowseButton.setEnabled(True)
self.ui.addOutputsToProjectCheckBox.setEnabled(True)
else:
self.ui.satellitePositionOutputLine.setDisabled(True)
self.ui.satellitePositionOutputBrowseButton.setDisabled(True)
if not self.ui.extentPolygonsOutputCheckBox.isChecked():
self.ui.addOutputsToProjectCheckBox.setChecked(False)
self.ui.addOutputsToProjectCheckBox.setDisabled(True)
def extentOutputStateChanged(self):
if self.ui.extentPolygonsOutputCheckBox.isChecked():
self.ui.extentPolygonsOutputLine.setEnabled(True)
self.ui.extentPolygonsOutputBrowseButton.setEnabled(True)
self.ui.addOutputsToProjectCheckBox.setEnabled(True)
self.ui.splitToMultuGeomCheckBox.setEnabled(True)
else:
self.ui.extentPolygonsOutputLine.setDisabled(True)
self.ui.extentPolygonsOutputBrowseButton.setDisabled(True)
self.ui.splitToMultuGeomCheckBox.setDisabled(True)
if not self.ui.satellitePositionOutputCheckBox.isChecked():
self.ui.addOutputsToProjectCheckBox.setChecked(False)
self.ui.addOutputsToProjectCheckBox.setDisabled(True)
def TLESettingsOpen (self):
self.MTLSettingsDlg = mtl_settings.MTLSettingsDlg()
self.MTLSettingsDlg.show()
def TLEAuto(self):
self.busyInterface()
QApplication.processEvents()
try:
dirPath = os.path.dirname(os.path.abspath(__file__))
spacetrack_opt = open(dirPath + '\\' +'spacetrack.dat','r')
login = re.sub("^\s+|\n|\r|\s+$", '', spacetrack_opt.readline())
password = re.sub("^\s+|\n|\r|\s+$", '', spacetrack_opt.readline())
except:
QtGui.QMessageBox.critical(None, "Error", 'Login and password are not set')
self.readyInterface()
return
userDate = self.ui.orbitDate.date()
userYear = userDate.year()
userMonth = userDate.month()
userDay = userDate.day()
if self.ui.satelliteComboBox.currentText() == 'Terra':
satId = 25994
elif self.ui.satelliteComboBox.currentText() == 'Aqua':
satId = 27424
try:
tle1, tle2 = spacetrack_interface.get_spacetrack_tle_for_id_date(satId,userYear,userMonth,userDay,login,password)
except (NameError):
QtGui.QMessageBox.critical(None, "Error", 'Server is unavailable')
self.readyInterface()
return
except (urllib2.HTTPError):
QtGui.QMessageBox.critical(None, "Error", 'Invalid inputs. Check date.')
self.readyInterface()
return
except:
QtGui.QMessageBox.critical(None, "Error", 'Unable to recieve TLE')
self.readyInterface()
return
self.ui.TLELine1.setText(tle1)
self.ui.TLELine2.setText(tle2)
self.readyInterface()
# If "run" was pressed
def run(self):
if self.ui.satellitePositionOutputCheckBox.isChecked():
if not self.ui.satellitePositionOutputLine.text():
QtGui.QMessageBox.critical(None, "Error", 'Output file name not set')
return
if self.ui.extentPolygonsOutputCheckBox.isChecked():
if not self.ui.extentPolygonsOutputLine.text():
QtGui.QMessageBox.critical(None, "Error", 'Output file name not set')
return
if self.ui.checkoutForObjectsCheckBox.isChecked():
if not self.ui.layersComboBox.currentText():
QtGui.QMessageBox.critical(None, "Error", 'Layer is not selected')
return
### End check inputs
userDate = self.ui.orbitDate.date()
userYear = userDate.year()
userMonth = userDate.month()
userDay = userDate.day()
# TRACK
self.busyInterface()
QApplication.processEvents()
if self.ui.satellitePositionOutputCheckBox.isChecked():
try:
trackLayer = mtl_track_generator.create_orbital_track_shapefile_for_day(userYear,userMonth,userDay,5,self.ui.TLELine1.text(),self.ui.TLELine2.text(),self.ui.satelliteComboBox.currentText())
except (NameError):
QtGui.QMessageBox.critical(None, "Error", 'Invalid TLE')
self.readyInterface()
return
except (TypeError):
QtGui.QMessageBox.critical(None, "Error", 'Invalid Inputs')
self.readyInterface()
return
mtl_lib.saveVectorLayerToSHP(trackLayer,self.ui.satellitePositionOutputLine.text())
if self.ui.addOutputsToProjectCheckBox.isChecked():
QgsMapLayerRegistry.instance().addMapLayer(trackLayer)
# EXTENTS
if self.ui.extentPolygonsOutputCheckBox.isChecked():
try:
sceneExtentsLayer = mtl_extent_generator.generateScenesExtentLayerForDay(userYear,userMonth,userDay,self.ui.TLELine1.text(),self.ui.TLELine2.text(),self.ui.satelliteComboBox.currentText(),self.ui.splitToMultuGeomCheckBox.isChecked())
except (NameError):
QtGui.QMessageBox.critical(None, "Error", 'Invalid TLE')
self.readyInterface()
return
except (TypeError):
QtGui.QMessageBox.critical(None, "Error", 'Invalid Inputs')
self.readyInterface()
return
mtl_lib.saveVectorLayerToSHP(sceneExtentsLayer,self.ui.extentPolygonsOutputLine.text())
if self.ui.addOutputsToProjectCheckBox.isChecked():
extentLayerName = 'Scene\'s extents (' + self.ui.satelliteComboBox.currentText() + ': ' + str(userYear) + ':' + str(userMonth) + ':' + str(userDay) + ')'
extentsLayer = QgsVectorLayer(self.ui.extentPolygonsOutputLine.text(),extentLayerName,'ogr')
QgsMapLayerRegistry.instance().addMapLayer(extentsLayer)
# OBJECTS
if self.ui.checkoutForObjectsCheckBox.isChecked():
userLayer = mtl_lib.getLayerByName(self.ui.layersComboBox.currentText())
if userLayer.isValid() == False:
QtGui.QMessageBox.critical(None, "Error", 'Invalid input vector layer')
self.readyInterface()
return
if self.ui.extentPolygonsOutputCheckBox.isChecked() and self.ui.splitToMultuGeomCheckBox.isChecked():
pass
else:
sceneExtentsLayer = mtl_extent_generator.generateScenesExtentLayerForDay(userYear,userMonth,userDay,self.ui.TLELine1.text(),self.ui.TLELine2.text(),self.ui.satelliteComboBox.currentText(),True)
QgsMapLayerRegistry.instance().addMapLayer(sceneExtentsLayer)
WGS84 = QgsCoordinateReferenceSystem(4326, QgsCoordinateReferenceSystem.PostgisCrsId)
reproj = False
if userLayer.crs() != WGS84:
# Reproject userLayer to WGS84
try:
userLayerReprojected = mtl_lib.reprojectVectorLayerToMemoryLayer(userLayer.crs(),WGS84,userLayer)
QgsMapLayerRegistry.instance().addMapLayer(userLayerReprojected)
reproj = True
except:
pass
# Intersects
try:
if reproj:
processing.runalg('qgis:selectbylocation',sceneExtentsLayer,userLayerReprojected,u'intersects',0)
else:
processing.runalg('qgis:selectbylocation',sceneExtentsLayer,userLayer,u'intersects',0)
except:
QtGui.QMessageBox.critical(None, "Error", 'Processing must be enabled!')
self.readyInterface()
return
features = sceneExtentsLayer.selectedFeatures()
intersectsList = []
for f in features:
intersectsList.append(f[1])
# Contains
try:
if reproj:
processing.runalg('qgis:selectbylocation',sceneExtentsLayer,userLayerReprojected,u'contains',0)
else:
processing.runalg('qgis:selectbylocation',sceneExtentsLayer,userLayer,u'contains',0)
except:
QtGui.QMessageBox.critical(None, "Error", 'Processing must be enabled!')
self.readyInterface()
return
features = sceneExtentsLayer.selectedFeatures()
containsList = []
for f in features:
containsList.append(f[1])
QgsMapLayerRegistry.instance().removeMapLayer(sceneExtentsLayer.id())
if reproj:
QgsMapLayerRegistry.instance().removeMapLayer(userLayerReprojected.id())
resultText = 'Associated scenes: <br> '
for sceneTime in intersectsList:
resultText += sceneTime + '<br>'
self.ui.checkoutTextBox.setText(resultText)
self.readyInterface()
def busyInterface(self):
self.ui.progressBar.setVisible(True)
self.ui.ftpGroupBox.setDisabled(True)
self.ui.objectsGroupBox.setDisabled(True)
self.ui.orbitGroupBox.setDisabled(True)
self.ui.outputsGroupBox.setDisabled(True)
def readyInterface(self):
self.ui.progressBar.setVisible(False)
self.ui.ftpGroupBox.setEnabled(True)
self.ui.objectsGroupBox.setEnabled(True)
self.ui.orbitGroupBox.setEnabled(True)
self.ui.outputsGroupBox.setEnabled(True)
# Close window by pressing "Cancel" button
def cancel(self):
self.close()