class UAVPreparerDialogTest(unittest.TestCase):
"""Test dialog works."""
def setUp(self):
"""Runs before each test."""
self.dialog = UAVPreparerDialog(None)
def tearDown(self):
"""Runs after each test."""
self.dialog = None
def test_dialog_ok(self):
"""Test we can click OK."""
button = self.dialog.button_box.button(QDialogButtonBox.Ok)
button.click()
result = self.dialog.result()
self.assertEqual(result, QDialog.Accepted)
def test_dialog_cancel(self):
"""Test we can click cancel."""
button = self.dialog.button_box.button(QDialogButtonBox.Cancel)
button.click()
result = self.dialog.result()
self.assertEqual(result, QDialog.Rejected)
def setUp(self):
"""Runs before each test."""
self.dialog = UAVPreparerDialog(None)
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
"""
# Create the dialog (after translation) and keep reference
self.dlg = UAVPreparerDialog()
icon = QIcon(icon_path)
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
class UAVPreparer:
"""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: QgsInterface
"""
# Save reference to the QGIS interface
self.iface = iface
# 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',
'UAVPreparer_{}.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'&UAV Preparer')
# TODO: We are going to let the user set this up in a future iteration
self.toolbar = self.iface.addToolBar(u'UAVPreparer')
self.toolbar.setObjectName(u'UAVPreparer')
# Declare variables
self.outputfile = None
self.filepath_dsm = None
# 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('UAVPreparer', 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
"""
# Create the dialog (after translation) and keep reference
self.dlg = UAVPreparerDialog()
icon = QIcon(icon_path)
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/UAVPreparer/icon2.png'
self.add_action(icon_path,
text=self.tr(u'UnManned Aerial Vehicle Preparer'),
callback=self.run,
parent=self.iface.mainWindow())
# Access the raster layer
self.layerComboManagerDSM = QgsMapLayerComboBox(self.dlg.widgetDSM)
self.layerComboManagerDSM.setFilters(QgsMapLayerProxyModel.RasterLayer)
self.layerComboManagerDSM.setFixedWidth(250)
self.layerComboManagerDSM.setCurrentIndex(-1)
# Access the vector layer and an attribute field
self.layerComboManagerPoint = QgsMapLayerComboBox(
self.dlg.widgetPointLayer)
self.layerComboManagerPoint.setCurrentIndex(-1)
self.layerComboManagerPoint.setFilters(
QgsMapLayerProxyModel.PointLayer)
self.layerComboManagerPoint.setFixedWidth(250)
self.layerComboManagerPointField = QgsFieldComboBox(
self.dlg.widgetField)
self.layerComboManagerPointField.setFilters(QgsFieldProxyModel.Numeric)
self.layerComboManagerPoint.layerChanged.connect(
self.layerComboManagerPointField.setLayer)
# Setup of file save dialog
self.fileDialog = QFileDialog()
self.dlg.pushButtonSave.clicked.connect(self.savefile)
# Setup for the Help Button
self.dlg.helpButton.clicked.connect(self.help)
# Setup for the Run Button
self.dlg.runButton.clicked.connect(self.start_progress)
def savefile(self):
self.outputfile = self.fileDialog.getSaveFileName(
None, "Save File As: ", None, "Text Files (*.txt)")
self.dlg.textOutput.setText(self.outputfile)
def help(self):
url = "https://github.com/MichelleNygren/UAVPreparer"
webbrowser.open_new_tab(url)
def start_progress(self):
if not self.outputfile:
QMessageBox.critical(None, "Error", "Specify an output file")
return
# Acquiring geodata and attributed
dsm_layer = self.layerComboManagerDSM.currentLayer()
if dsm_layer is None:
QMessageBox.critical(None, "Error",
"No valid raster layer is selected")
return
else:
provider = dsm_layer.dataProvider()
filepath_dsm = str(provider.dataSourceUri())
point_layer = self.layerComboManagerPoint.currentLayer()
if point_layer is None:
QMessageBox.critical(None, "Error",
"No valid vector point layer is selected")
return
else:
vlayer = QgsVectorLayer(point_layer.source(), "point", "ogr")
point_field = self.layerComboManagerPointField.currentField()
idx = vlayer.fieldNameIndex(point_field)
if idx == -1:
QMessageBox.critical(
None, "Error",
"An attribute with unique fields must be selected")
return
# Counts rows in vector layer
h = vlayer.featureCount()
newarray = np.zeros((h, 4))
index = 0
self.dlg.progressBar.setRange(index, h)
for i in vlayer.getFeatures():
self.dlg.progressBar.setValue(index + 1)
geom = i.geometry()
pp = geom.asPoint()
x = pp[0]
y = pp[1]
rSquare = 100
square = 'gdalwarp -dstnodata -9999 -q -overwrite -te ' + \
str(x - rSquare) + ' ' + str(y - rSquare) + ' ' + str(x + rSquare) + ' ' + str(y + rSquare) + \
' -of GTiff ' + \
filepath_dsm + '' + self.plugin_dir + '/clipdsm.tif'
si = subprocess.STARTUPINFO()
si.dwFlags |= subprocess.STARTF_USESHOWWINDOW
subprocess.call(square, startupinfo=si)
area = gdal.Open(
'C:/Users/xnygmi/Desktop/FREDRIK_GIS/London/clipdsm.tif')
mat = np.array(area.ReadAsArray())
max = np.max(mat)
mean = np.mean(mat)
min = np.min(mat)
k = vlayer.fieldNameIndex('Id')
newarray[index, 0] = i.attributes()[k]
newarray[index, 1] = max
newarray[index, 2] = mean
newarray[index, 3] = min
index += 1
numformat = '%d ' + '%6.2f ' * 3
headertext = 'ID Mean Max Min'
np.savetxt(self.outputfile,
newarray,
fmt=numformat,
header=headertext,
delimiter=' ')
open(self.outputfile, 'r')
self.iface.messageBar().pushMessage(
'UAV Preparer. Operation Successful!',
level=QgsMessageBar.INFO,
duration=5)
def unload(self):
"""Removes the plugin menu item and icon from QGIS GUI."""
for action in self.actions:
self.iface.removePluginMenu(self.tr(u'&UAV Preparer'), action)
self.iface.removeToolBarIcon(action)
# remove the toolbar
del self.toolbar
def run(self):
"""Run method that performs all the real work"""
# show the dialog
self.dlg.show()
# Run the dialog event loop
result = self.dlg.exec_()
# See if OK was pressed
if result:
# Do something useful here - delete the line containing pass and
# substitute with your code.
pass