profilevisualization.py

        """
        Removes PlotStyle instances
        :param plotStyles: TemporalProfilePlotStyle | [list-of-TemporalProfilePlotStyle]
        """
        if isinstance(plotStyles, PlotStyle):
            plotStyles = [plotStyles]
        assert isinstance(plotStyles, list)

        if len(plotStyles) > 0:
            for plotStyle in plotStyles:
                assert isinstance(plotStyle, PlotStyle)
                if plotStyle in self.mPlotSettings:
                    idx = self.plotStyle2idx(plotStyle)
                    self.beginRemoveRows(QModelIndex(), idx.row(),idx.row())
                    self.mPlotSettings.remove(plotStyle)
                    self.endRemoveRows()
                if isinstance(plotStyle, TemporalProfile2DPlotStyle):
                    for pi in plotStyle.mPlotItems:
                        self.mPlotWidget.getPlotItem().removeItem(pi)
            self.sigPlotStylesRemoved.emit(plotStyles)

    def sort(self, col, order):
        if self.rowCount() == 0:
            return


        colName = self.columnames[col]
        r = order != Qt.AscendingOrder

        #self.beginMoveRows(idxSrc,

        if colName == self.cnSensor:
            self.mPlotSettings.sort(key = lambda sv:sv.sensor().name(), reverse=r)
        elif colName == self.cnExpression:
            self.mPlotSettings.sort(key=lambda sv: sv.expression(), reverse=r)
        elif colName == self.cnStyle:
            self.mPlotSettings.sort(key=lambda sv: sv.color, reverse=r)

    def rowCount(self, parent = QModelIndex()):
        return len(self.mPlotSettings)


    def removeRows(self, row, count , parent = QModelIndex()):

        self.beginRemoveRows(parent, row, row + count-1)

        toRemove = self.mPlotSettings[row:row + count]

        for tsd in toRemove:
            self.mPlotSettings.remove(tsd)

        self.endRemoveRows()

    def plotStyle2idx(self, plotStyle):

        assert isinstance(plotStyle, TemporalProfile2DPlotStyle)

        if plotStyle in self.mPlotSettings:
            i = self.mPlotSettings.index(plotStyle)
            return self.createIndex(i, 0)
        else:
            return QModelIndex()

    def idx2plotStyle(self, index):

        if index.isValid() and index.row() < self.rowCount():
            return self.mPlotSettings[index.row()]

        return None

    def columnCount(self, parent = QModelIndex()):
        return len(self.columNames)

    def data(self, index, role = Qt.DisplayRole):
        if role is None or not index.isValid():
            return None

        value = None
        columnName = self.columNames[index.column()]
        plotStyle = self.idx2plotStyle(index)
        if isinstance(plotStyle, TemporalProfile2DPlotStyle):
            sensor = plotStyle.sensor()
            #print(('data', columnName, role))
            if role == Qt.DisplayRole:
                if columnName == self.cnSensor:
                    if isinstance(sensor, SensorInstrument):
                        value = sensor.name()
                    else:
                        value = '<Select Sensor>'
                elif columnName == self.cnExpression:
                    value = plotStyle.expression()
                elif columnName == self.cnTemporalProfile:
                    value = plotStyle.temporalProfile().name()

            #elif role == Qt.DecorationRole:
            #    if columnName == self.cnStyle:
            #        value = plotStyle.createIcon(QSize(96,96))

            elif role == Qt.CheckStateRole:
                if columnName == self.cnTemporalProfile:
                    value = Qt.Checked if plotStyle.isVisible() else Qt.Unchecked



            elif role == Qt.UserRole:
                value = plotStyle
                if columnName == self.cnSensor:
                    value = plotStyle.sensor()
                elif columnName == self.cnExpression:
                    value = plotStyle.expression()
                elif columnName == self.cnStyle:
                    value = plotStyle
                elif columnName == self.cnTemporalProfile:
                    value == plotStyle.temporalProfile()
                else:
                    value = plotStyle
        #print(('get data',value))
        return value

    def setData(self, index, value, role=None):
        if role is None or not index.isValid():
            return False
        #print(('Set data', index.row(), index.column(), value, role))
        columnName = self.columNames[index.column()]

        if value is None:
            return False

        result = False
        plotStyle = self.idx2plotStyle(index)
        if isinstance(plotStyle, TemporalProfile2DPlotStyle):
            if role in [Qt.DisplayRole]:
                if columnName == self.cnExpression:
                    plotStyle.setExpression(value)
                    result = True
                elif columnName == self.cnStyle:
                    if isinstance(value, PlotStyle):
                        plotStyle.copyFrom(value)
                        result = True

            if role == Qt.CheckStateRole:
                if columnName == self.cnTemporalProfile:
                    plotStyle.setVisibility(value == Qt.Checked)
                    result = True

            if role == Qt.EditRole:
                if columnName == self.cnExpression:
                    plotStyle.setExpression(value)
                    result = True
                elif columnName == self.cnStyle:
                    plotStyle.copyFrom(value)
                    result = True
                elif columnName == self.cnSensor:
                    plotStyle.setSensor(value)
                    result = True
                elif columnName == self.cnTemporalProfile:
                    plotStyle.setTemporalProfile(value)
                    result = True

        if result:
            #save plot-style
            self.savePlotSettings(plotStyle, index='DEFAULT')
            self.dataChanged.emit(index, index)

        return result

    def savePlotSettings(self, sensorPlotSettings, index='DEFAULT'):
        return
        #todo
        assert isinstance(sensorPlotSettings, TemporalProfile2DPlotStyle)
        #todo: avoid dumps
        id = 'SPS.{}.{}'.format(index, sensorPlotSettings.sensor().id())
        d = pickle.dumps(sensorPlotSettings)
        SETTINGS.setValue(id, d)

    def restorePlotSettings(self, sensor, index='DEFAULT'):
        return None

        #todo
        assert isinstance(sensor, SensorInstrument)
        id = 'SPS.{}.{}'.format(index, sensor.id())
        sensorPlotSettings = SETTINGS.value(id)
        if sensorPlotSettings is not None:
            try:
                sensorPlotSettings = pickle.loads(sensorPlotSettings)
                s = ""
            except:
                sensorPlotSettings = None
                pass

        if isinstance(sensorPlotSettings, TemporalProfile2DPlotStyle):
            return sensorPlotSettings
        else:
            return None


    def flags(self, index):
        if index.isValid():
            columnName = self.columNames[index.column()]
            flags = Qt.ItemIsEnabled | Qt.ItemIsSelectable
            if columnName in [self.cnTemporalProfile]:
                flags = flags | Qt.ItemIsUserCheckable
            if columnName in [self.cnTemporalProfile, self.cnSensor, self.cnExpression, self.cnStyle]: #allow check state
                flags = flags | Qt.ItemIsEditable
            return flags
            #return item.qt_flags(index.column())
        return Qt.NoItemFlags

    def headerData(self, col, orientation, role):
        if Qt is None:
            return None
        if orientation == Qt.Horizontal and role == Qt.DisplayRole:
            return self.columNames[col]
        elif orientation == Qt.Vertical and role == Qt.DisplayRole:
            return col
        return None



class ProfileViewDockUI(QgsDockWidget, loadUI('profileviewdock.ui')):


    def __init__(self, parent=None):
        super(ProfileViewDockUI, self).__init__(parent)
        self.setupUi(self)

        #TBD.
        #self.line.setVisible(False)
        #self.listWidget.setVisible(False)
        self.stackedWidget.setCurrentWidget(self.page2D)
        self.plotWidget3D = None
        if OPENGL_AVAILABLE:
            l = self.frame3DPlot.layout()

            #from pyqtgraph.opengl import GLViewWidget
            #self.plotWidget3D = GLViewWidget(parent=self.page3D)
            self.plotWidget3D = ViewWidget3D(parent=self.frame3DPlot)
            self.plotWidget3D.setObjectName('plotWidget3D')

            size = self.labelDummy3D.size()
            l.addWidget(self.plotWidget3D)
            self.plotWidget3D.setSizePolicy(self.labelDummy3D.sizePolicy())
            self.labelDummy3D.setVisible(False)
            l.removeWidget(self.labelDummy3D)
            self.plotWidget3D.setBaseSize(size)
            self.splitter3D.setSizes([100, 100])

        #pi = self.plotWidget2D.plotItem
        #ax = DateAxis(orientation='bottom', showValues=True)
        #pi.layout.addItem(ax, 3,2)

        self.baseTitle = self.windowTitle()
        self.TS = None

        self.progressBar.setMinimum(0)
        self.progressBar.setMaximum(100)
        self.progressBar.setValue(0)
        self.progressInfo.setText('')
        self.pxViewModel2D = None
        self.pxViewModel3D = None

        self.tableView2DProfiles.horizontalHeader().setResizeMode(QHeaderView.ResizeToContents)
        self.tableView2DProfiles.setSortingEnabled(True)
        self.tableViewTemporalProfiles.horizontalHeader().setResizeMode(QHeaderView.ResizeToContents)
        self.tableViewTemporalProfiles.setSortingEnabled(True)




NEXT_COLOR_HUE_DELTA_CON = 10
NEXT_COLOR_HUE_DELTA_CAT = 100
def nextColor(color, mode='cat'):
    """
    Reuturns another color
    :param color:
    :param mode:
    :return:
    """
    assert mode in ['cat','con']
    assert isinstance(color, QColor)
    hue, sat, value, alpha = color.getHsl()
    if mode == 'cat':
        hue += NEXT_COLOR_HUE_DELTA_CAT
    elif mode == 'con':
        hue += NEXT_COLOR_HUE_DELTA_CON
    if sat == 0:
        sat = 255
        value = 128
        alpha = 255
        s = ""
    while hue > 360:
        hue -= 360

    return QColor.fromHsl(hue, sat, value, alpha)




class SpectralTemporalVisualization(QObject):

    sigShowPixel = pyqtSignal(TimeSeriesDatum, QgsPoint, QgsCoordinateReferenceSystem)

    """
    Signalizes to move to specific date of interest
    """
    sigMoveToDate = pyqtSignal(np.datetime64)


    def __init__(self, ui):
        super(SpectralTemporalVisualization, self).__init__()

        assert isinstance(ui, ProfileViewDockUI), 'arg ui of type: {} {}'.format(type(ui), str(ui))
        self.ui = ui

        if DEBUG:
            import timeseriesviewer.pixelloader
            timeseriesviewer.pixelloader.DEBUG = True

        self.TS = None
        self.pixelLoader = PixelLoader()
        self.pixelLoader.sigPixelLoaded.connect(self.onPixelLoaded)
        self.pixelLoader.sigLoadingStarted.connect(lambda: self.ui.progressInfo.setText('Start loading...'))


        self.plot_initialized = False
        self.tableView2DProfiles = ui.tableView2DProfiles

        self.tableView2DProfiles.setSortingEnabled(False)

        self.tableView2DProfiles.horizontalHeader().setResizeMode(QHeaderView.ResizeToContents)

        self.plotSettingsModel3D = PlotSettingsModel3D()
        #self.plotSettingsModel3D.sigPlotStylesRemoved.connect(self.updatePlot3D)
        #self.plotSettingsModel3D.sigPlotStylesAdded.connect(self.updatePlot3D)
        #self.plotSettingsModel3D.sigPlotStylesAdded.connect(self.updatePlot3D)
        self.plotSettingsModel3D.rowsInserted.connect(self.onRowsInserted3D)
        self.ui.tableView3DProfiles.setModel(self.plotSettingsModel3D)
        self.ui.tableView3DProfiles.horizontalHeader().setResizeMode(QHeaderView.ResizeToContents)
        self.delegateTableView3D = PlotSettingsModel3DWidgetDelegate(self.ui.tableView3DProfiles)
        self.delegateTableView3D.setItemDelegates(self.ui.tableView3DProfiles)
        # self.mSelectionModel.currentChanged.connect(self.onCurrentSelectionChanged)

        self.plot2D = ui.plotWidget2D
        pi = self.plot2D.getPlotItem()
        pi.getViewBox().sigMoveToDate.connect(self.sigMoveToDate)
        pi.getAxis('bottom').setLabel(LABEL_TIME)
        pi.getAxis('left').setLabel(LABEL_DN)
        self.plot2Dvline = pg.InfiniteLine(angle=90, movable=False)
        self.plot2Dhline = pg.InfiniteLine(angle=0, movable=False)
        #self.plot2DLabel = pg.TextItem(text='LABEL')
        self.plot2DLabel = pg.LabelItem(justify='right')
        #pi.setContentsMargins(0.1, 0.1, 0.1, 0.1)
        pi.addItem(self.plot2Dvline, ignoreBounds=True)
        pi.addItem(self.plot2Dhline, ignoreBounds=True)
        self.plot2D.addItem(self.plot2DLabel, ignoreBounds=True)

        self.proxy2D = pg.SignalProxy(self.plot2D.scene().sigMouseMoved, rateLimit=60, slot=self.onMouseMoved2D)
        self.plot3D = ui.plotWidget3D
        self.reset3DCamera()

        ## Add a grid to the view
        if OPENGL_AVAILABLE:
            import pyqtgraph.opengl as gl
            self.glGridItem = gl.GLGridItem()
            self.glGridItem.setDepthValue(10)  # draw grid after surfaces since they may be translucent
            self.glPlotDataItems = [self.glGridItem]
            self.plot3D.addItem(self.glGridItem)

        self.tpCollection = TemporalProfileCollection()
        self.tpCollectionListModel = TemporalProfileCollectionListModel(self.tpCollection)

        self.ui.tableViewTemporalProfiles.setModel(self.tpCollection)
        self.ui.tableViewTemporalProfiles.selectionModel().selectionChanged.connect(self.onTemporalProfileSelectionChanged)
        self.ui.tableViewTemporalProfiles.horizontalHeader().setResizeMode(QHeaderView.ResizeToContents)
        self.ui.cbTemporalProfile3D.setModel(self.tpCollectionListModel)
        #self.pxCollection.sigPixelAdded.connect(self.requestUpdate)
        #self.pxCollection.sigPixelRemoved.connect(self.clear)

        self.plotSettingsModel2D = None
        self.pixelLoader.sigLoadingStarted.connect(self.clear)
        self.pixelLoader.sigLoadingFinished.connect(lambda : self.plot2D.enableAutoRange('x', False))


        # self.VIEW.setItemDelegateForColumn(3, PointStyleDelegate(self.VIEW))
        self.plotData2D = dict()
        self.plotData3D = dict()

        self.updateRequested = True
        self.updateTimer = QTimer(self)
        self.updateTimer.timeout.connect(self.onDataUpdate)
        self.updateTimer.start(5000)

        self.sigMoveToDate.connect(self.onMoveToDate)

        self.initActions()


    def onMouseMoved2D(self, evt):
        pos = evt[0]  ## using signal proxy turns original arguments into a tuple

        plotItem = self.plot2D.getPlotItem()
        if plotItem.sceneBoundingRect().contains(pos):
            mousePoint = plotItem.vb.mapSceneToView(pos)
            x = mousePoint.x()
            y = mousePoint.y()

            index = int(mousePoint.x())
            self.plot2DLabel.setText('Refreshed {}'.format(mousePoint.x(), mousePoint.y()))
            #if index > 0 and index < len(data1):
            #    label.setText(
            #        "<span style='font-size: 12pt'>x=%0.1f,   <span style='color: red'>y1=%0.1f</span>,   <span style='color: green'>y2=%0.1f</span>" % (
            #        mousePoint.x(), data1[index], data2[index]))
            self.plot2Dvline.setPos(mousePoint.x())
            self.plot2Dhline.setPos(mousePoint.y())


        return
        vb = plotItem.vb


        if plotItem.sceneBoundingRect().contains(pos):
            mousePoint = vb.mapSceneToView(pos)

            self.vLine.setPos(mousePoint.x())
            self.hLine.setPos(mousePoint.y())

            info = '{:0.2f}, {:0.2f}'.format(mousePoint.x(), mousePoint.y())
            self.tbCursorLocationValue.setText(info)
            """
            self.mlabel.setText(
                    "<span style='font-size: 12pt'>{}</span>".format(info)
            """
        else:
            self.tbCursorLocationValue.setText('')
            self.mlabel.setText('')



    def selected2DPlotStyles(self):
        result = []

        m = self.ui.tableView2DProfiles.model()
        for idx in selectedModelIndices(self.ui.tableView2DProfiles):
            result.append(m.idx2plotStyle(idx))
        return result

    def selectedTemporalProfiles(self):
        result = []
        m = self.ui.tableViewTemporalProfiles.model()
        for idx in selectedModelIndices(self.ui.tableViewTemporalProfiles):
            result.append(m.idx2tp(idx))
        return result

    def removePlotStyles(self, plotStyles):
        m = self.ui.tableView2DProfiles.model()
        if isinstance(m, PlotSettingsModel2D):
            m.removePlotStyles(plotStyles)

    def removeTemporalProfiles(self, temporalProfiles):
        m = self.ui.tableViewTemporalProfiles.model()
        if isinstance(m, TemporalProfileCollection):
            m.removeTemporalProfiles(temporalProfiles)

    def createNewPlotStyle(self):
        l = len(self.tpCollection)
        if l > 0:
            temporalProfile = self.tpCollection[0]



            plotStyle = TemporalProfile2DPlotStyle(temporalProfile)

            plotStyle.sigExpressionUpdated.connect(self.updatePlot2D)
            sensors = self.TS.Sensors.keys()
            if len(sensors) > 0:
                plotStyle.setSensor(sensors[0])

            if len(self.plotSettingsModel2D) > 0:
                lastStyle = self.plotSettingsModel2D[-1]
                assert isinstance(lastStyle, TemporalProfile2DPlotStyle)
                markerColor = nextColor(lastStyle.markerBrush.color())
                plotStyle.markerBrush.setColor(markerColor)
            self.plotSettingsModel2D.insertPlotStyles([plotStyle])
            pdi = plotStyle.createPlotItem(self.plot2D)

            assert isinstance(pdi, TemporalProfilePlotDataItem)
            pdi.sigClicked.connect(self.onProfileClicked2D)
            pdi.sigPointsClicked.connect(self.onPointsClicked2D)
            self.plot2D.getPlotItem().addItem(pdi)
            #self.plot2D.getPlotItem().addItem(pg.PlotDataItem(x=[1, 2, 3], y=[1, 2, 3]))
            #plotItem.addDataItem(pdi)
            #plotItem.plot().sigPlotChanged.emit(plotItem)
            self.updatePlot2D()


    def onProfileClicked2D(self, pdi):
        if isinstance(pdi, TemporalProfilePlotDataItem):
            sensor = pdi.mPlotStyle.sensor()
            tp = pdi.mPlotStyle.temporalProfile()
            if isinstance(tp, TemporalProfile) and isinstance(sensor, SensorInstrument):
                info = ['Sensor:{}'.format(sensor.name()),
                        'Coordinate:{}, {}'.format(tp.mCoordinate.x(), tp.mCoordinate.y())]
                self.ui.tbInfo2D.setPlainText('\n'.join(info))


    def onPointsClicked2D(self, pdi, spottedItems):
        if isinstance(pdi, TemporalProfilePlotDataItem) and isinstance(spottedItems, list):
            sensor = pdi.mPlotStyle.sensor()
            tp = pdi.mPlotStyle.temporalProfile()
            if isinstance(tp, TemporalProfile) and isinstance(sensor, SensorInstrument):

                info = ['Sensor: {}'.format(sensor.name()),
                        'Coordinate: {}, {}'.format(tp.mCoordinate.x(), tp.mCoordinate.y())]

                for item in spottedItems:
                    pos = item.pos()
                    x = pos.x()
                    y = pos.y()
                    date = num2date(x)
                    info.append('Date: {}\nValue: {}'.format(date, y))

                self.ui.tbInfo2D.setPlainText('\n'.join(info))

    def onTemporalProfileSelectionChanged(self, selected, deselected):
        self.ui.actionRemoveTemporalProfile.setEnabled(len(selected) > 0)

    def onPlot2DSelectionChanged(self, selected, deselected):

        self.ui.actionRemoveView.setEnabled(len(selected) > 0)

    def initActions(self):

        self.ui.actionRemoveView.setEnabled(False)
        self.ui.actionRemoveTemporalProfile.setEnabled(False)

        self.ui.btnAddView.setDefaultAction(self.ui.actionAddView)
        self.ui.btnRemoveView.setDefaultAction(self.ui.actionRemoveView)
        self.ui.btnRefresh2D.setDefaultAction(self.ui.actionRefresh2D)
        self.ui.btnRefresh3D.setDefaultAction(self.ui.actionRefresh3D)
        self.ui.btnRemoveTemporalProfile.setDefaultAction(self.ui.actionRemoveTemporalProfile)
        self.ui.btnReset3DCamera.setDefaultAction(self.ui.actionReset3DCamera)

        self.ui.actionRefresh2D.triggered.connect(self.updatePlot2D)
        self.ui.actionRefresh3D.triggered.connect(self.updatePlot3D)

        self.ui.actionAddView.triggered.connect(self.createNewPlotStyle)
        self.ui.actionRemoveView.triggered.connect(lambda:self.removePlotStyles(self.selected2DPlotStyles()))
        self.ui.actionRemoveTemporalProfile.triggered.connect(lambda :self.removeTemporalProfiles(self.selectedTemporalProfiles()))
        self.ui.actionReset3DCamera.triggered.connect(self.reset3DCamera)
        self.tpCollection.sigMaxProfilesChanged.connect(self.ui.sbMaxTP.setValue)
        self.ui.sbMaxTP.valueChanged.connect(self.tpCollection.setMaxProfiles)

        #todo: self.ui.actionRemoveView.triggered.connect(self.plotSettingsModel.createPlotStyle)

    def reset3DCamera(self, *args):

        if OPENGL_AVAILABLE:
            self.plot3D.setCameraPosition((0,0,0), distance=10, elevation=10)

    def setTimeSeries(self, TS):

        assert isinstance(TS, TimeSeries)
        self.TS = TS

        self.tpCollection.connectTimeSeries(self.TS)



        self.plotSettingsModel2D = PlotSettingsModel2D(self.tpCollection, self.plot2D, parent=self)
        self.plotSettingsModel2D.sigVisibilityChanged.connect(self.setVisibility)
        self.plotSettingsModel2D.sigDataChanged.connect(self.requestUpdate)
        self.plotSettingsModel2D.rowsInserted.connect(self.onRowsInserted2D)

        self.plotSettingsModel3D.connectTimeSeries(self.TS)
        # self.plotSettingsModel.modelReset.connect(self.updatePersistantWidgets)
        self.tableView2DProfiles.setModel(self.plotSettingsModel2D)
        #self.tableView2DProfilesSelectionModel = QItemSelectionModel(self.mModel)
        self.tableView2DProfiles.selectionModel().selectionChanged.connect(self.onPlot2DSelectionChanged)
        #self.tableView2DProfilesSelectionModel.selectionChanged.connect(self.onPlot2DSelectionChanged)
        #self.tableView2DProfilesSelectionModel.setSelectionModel(self.mSelectionModel)
        self.delegateTableView2D = PlotSettingsModel2DWidgetDelegate(self.tableView2DProfiles, self.TS, self.tpCollectionListModel)
        self.delegateTableView2D.setItemDelegates(self.tableView2DProfiles)



    sigMoveToTSD = pyqtSignal(TimeSeriesDatum)

    def onMoveToDate(self, date):
        dt = np.asarray([np.abs(tsd.date - date) for tsd in self.TS])
        i = np.argmin(dt)
        self.sigMoveToTSD.emit(self.TS[i])


    def onPixelLoaded(self, nDone, nMax, d):
        self.ui.progressBar.setValue(nDone)
        self.ui.progressBar.setMaximum(nMax)

        assert isinstance(d, PixelLoaderTask)

        bn = os.path.basename(d.sourcePath)
        if d.success():
            t = 'Last loaded from {}.'.format(bn)
            self.tpCollection.addPixelLoaderResult(d)
            self.updateRequested = True
        else:
            t = 'Failed loading from {}.'.format(bn)
            if d.info and d.info != '':
                t += '({})'.format(d.info)

        # QgsApplication.processEvents()
        self.ui.progressInfo.setText(t)

    def requestUpdate(self, *args):
        self.updateRequested = True
        #next time

    def onRowsInserted2D(self, parent, start, end):
        model = self.tableView2DProfiles.model()
        if isinstance(model, PlotSettingsModel2D):
            colExpression = model.columnIndex(model.cnExpression)
            colStyle = model.columnIndex(model.cnStyle)
            while start <= end:
                idxExpr = model.createIndex(start, colExpression)
                idxStyle = model.createIndex(start, colStyle)
                self.tableView2DProfiles.openPersistentEditor(idxExpr)
                self.tableView2DProfiles.openPersistentEditor(idxStyle)
                start += 1
                #self.TV.openPersistentEditor(model.createIndex(start, colStyle))
            s = ""

    def onRowsInserted3D(self, parent, start, end):
        model = self.ui.tableView3DProfiles.model()
        if isinstance(model, PlotSettingsModel3D):
            colStyle = model.columnIndex(model.cnStyle)
            while start <= end:
                idxStyle = model.createIndex(start, colStyle)
                self.ui.tableView3DProfiles.openPersistentEditor(idxStyle)
                start += 1

    def onObservationClicked(self, plotDataItem, points):
        for p in points:
            tsd = p.data()
            #print(tsd)


    def clear(self):
        #first remove from pixelCollection
        self.tpCollection.prune()

        return

        self.plotData2D.clear()
        self.plotData3D.clear()

        pi = self.plot2D.getPlotItem()
        plotItems = pi.listDataItems()
        for p in plotItems:
            p.clear()
            p.update()

        if len(self.TS) > 0:
            rng = [self.TS[0].date, self.TS[-1].date]
            rng = [date2num(d) for d in rng]
            self.plot2D.getPlotItem().setRange(xRange=rng)
        #QApplication.processEvents()
        if self.plot3D:
            pass


    def loadCoordinate(self, spatialPoints=None, LUT_bandIndices=None):
        """
        Loads a temporal profile for a single or multiple geometries.
        :param spatialPoints: SpatialPoint | [list-of-SpatialPoints]
        """
        if not isinstance(self.plotSettingsModel2D, PlotSettingsModel2D):
            return False

        if not self.pixelLoader.isReadyToLoad():
            return False

        assert isinstance(self.TS, TimeSeries)

        #Get or create the TimeSeriesProfiles which will store the loaded values

        tasks = []
        TPs = []
        theGeometries = []


        # Define a which (new) bands need to be loaded for each sensor
        if LUT_bandIndices is None:
            LUT_bandIndices = dict()
            for sensor in self.TS.Sensors:
                LUT_bandIndices[sensor] = self.plotSettingsModel2D.requiredBandsIndices(sensor)

        assert isinstance(LUT_bandIndices, dict)
        for sensor in self.TS.Sensors:
            assert sensor in LUT_bandIndices.keys()

        #update new / existing points
        if isinstance(spatialPoints, SpatialPoint):
            spatialPoints = [spatialPoints]

        for spatialPoint in spatialPoints:
            assert isinstance(spatialPoint, SpatialPoint)
            TP = self.tpCollection.fromSpatialPoint(spatialPoint)
            if not isinstance(TP, TemporalProfile):
                TP = TemporalProfile(self.TS, spatialPoint)
                self.tpCollection.insertTemporalProfiles(TP, i=0)

                if len(self.tpCollection) == 1:
                    if len(self.plotSettingsModel2D) == 0:
                        self.createNewPlotStyle()

                    if len(self.plotSettingsModel3D) == 0:
                        #todo: individual 3D style
                        pass

            TPs.append(TP)
            theGeometries.append(TP.mCoordinate)


        TP_ids = [TP.mID for TP in TPs]
        #each TSD is a Task
        #a Task defines which bands are to be loaded
        for tsd in self.TS:

            #do not load from invisible TSDs
            if not tsd.isVisible():
                continue

            #which bands do we need to load?
            requiredIndices = set(LUT_bandIndices[tsd.sensor])
            if len(requiredIndices) == 0:
                continue
            else:
                s = ""

            missingIndices = set()

            for TP in TPs:
                assert isinstance(TP, TemporalProfile)
                existingBandKeys = [k for k in TP.data(tsd).keys() if regBandKeyExact.search(k)]
                existingBandIndices = set([bandKey2bandIndex(k) for k in existingBandKeys])
                need2load = requiredIndices.difference(existingBandIndices)
                missingIndices = missingIndices.union(need2load)

            missingIndices = sorted(list(missingIndices))

            if len(missingIndices) > 0:
                task = PixelLoaderTask(tsd.pathImg, theGeometries,
                                       bandIndices=missingIndices,
                                       temporalProfileIDs=TP_ids)
                tasks.append(task)

        if len(tasks) > 0:
            aGoodDefault = 2 if len(self.TS) > 25 else 1

            self.pixelLoader.setNumberOfProcesses(SETTINGS.value('profileloader_threads', aGoodDefault))
            if DEBUG:
                print('Start loading for {} geometries from {} sources...'.format(
                    len(theGeometries), len(tasks)
                ))
            self.pixelLoader.startLoading(tasks)

        else:
            if DEBUG:
                print('Data for geometries already loaded')

    def setVisibility(self, sensorPlotStyle):
        assert isinstance(sensorPlotStyle, TemporalProfile2DPlotStyle)
        self.setVisibility2D(sensorPlotStyle)

    def setVisibility2D(self, sensorPlotStyle):

        self.plot2D.update()


    def addData(self, sensorView = None):

        if sensorView is None:
            for sv in self.plotSettingsModel2D.items:
                self.setData(sv)
        else:
            assert isinstance(sensorView, TemporalProfile2DPlotStyle)
            self.setData2D(sensorView)

    @QtCore.pyqtSlot()
    def onDataUpdate(self):


        for plotSetting in self.plotSettingsModel2D:
            assert isinstance(plotSetting, TemporalProfile2DPlotStyle)
            if plotSetting.temporalProfile().updated():
                for pdi in plotSetting.mPlotItems:
                    assert isinstance(pdi, TemporalProfilePlotDataItem)
                    pdi.updateDataAndStyle()
                plotSetting.temporalProfile().resetUpdated()

        for i in self.plot2D.getPlotItem().dataItems:
            i.updateItems()


        if not self.plot2D.xAxisInitialized:
            x0 = x1 = None
            for plotSetting in self.plotSettingsModel2D:
                assert isinstance(plotSetting, TemporalProfile2DPlotStyle)
                for pdi in plotSetting.mPlotItems:
                    assert isinstance(pdi, TemporalProfilePlotDataItem)
                    if pdi.xData.ndim == 0 or pdi.xData.shape[0] == 0:
                        continue
                    if x0 is None:
                        x0 = pdi.xData.min()
                        x1 = pdi.xData.max()
                    else:
                        x0 = min(pdi.xData.min(), x0)
                        x1 = max(pdi.xData.max(), x1)

            if x0 is not None:
                self.plot2D.getPlotItem().setXRange(x0, x1)
                self.plot2D.xAxisInitialized = True

    @QtCore.pyqtSlot()
    def updatePlot3D(self):
        if OPENGL_AVAILABLE:
            from pyqtgraph.opengl import GLViewWidget
            import pyqtgraph.opengl as gl
            assert isinstance(self.plot3D, GLViewWidget)
            w = self.plot3D

            #we need the data from all bands



            del self.glPlotDataItems[:]
            for i in w.items:
                w.removeItem(i)

            idx = self.ui.cbTemporalProfile3D.currentIndex()
            if idx >= 0:
                tp = self.ui.cbTemporalProfile3D.itemData(idx, role=Qt.UserRole)
                assert isinstance(tp, TemporalProfile)

                #1. ensure that data from all bands will be loaded
                LUT_bandIndices = dict()
                for sensor in self.TS.sensors():
                    assert isinstance(sensor, SensorInstrument)
                    LUT_bandIndices[sensor] = list(range(sensor.nb))

                self.loadCoordinate(tp.mCoordinate, LUT_bandIndices=LUT_bandIndices)

                #2. visualize already loaded data
                LUTStyle = {}
                for style in self.plotSettingsModel3D:
                    assert isinstance(style, TemporalProfile3DPlotStyle)
                    LUTStyle[style.sensor()] = style

                dataPos = []
                x0 = x1 = y0 = y1 = z0 = z1 = 0
                for iDate, tsd in enumerate(tp.mTimeSeries):
                    data = tp.data(tsd)


                    bandKeys = sorted([k for k in data.keys() if k.startswith('b') and data[k] != None], key=lambda k: bandKey2bandIndex(k))
                    if len(bandKeys) < 2:
                        continue

                    t = date2num(tsd.date)

                    x = []
                    y = []
                    z = []

                    for i, k in enumerate(bandKeys):
                        x.append(i)
                        y.append(t)
                        z.append(data[k])
                    x = np.asarray(x)
                    y = np.asarray(y)
                    z = np.asarray(z)
                    if iDate == 0:
                        x0, x1 = (x.min(), x.max())
                        y0, y1 = (y.min(), y.max())
                        z0, z1 = (z.min(), z.max())
                    else:
                        x0, x1 = (min(x.min(), x0), max(x.max(), x1))
                        y0, y1 = (min(y.min(), y0), max(y.max(), y1))
                        z0, z1 = (min(z.min(), z0), max(z.max(), z1))
                    if tsd.sensor in LUTStyle.keys():
                        style = LUTStyle[tsd.sensor]
                    else:
                        style = TemporalProfile3DPlotStyle(tsd.sensor)
                    dataPos.append((x,y,z, style))

                xyz = [(x0,x1),(y0,y1),(z0,z1)]
                l = len(dataPos)
                for iPos, pos in enumerate(dataPos):
                    x,y,z, style = pos
                    assert isinstance(style, TemporalProfile3DPlotStyle)
                    if not style.isVisible():
                        continue
                    arr = np.asarray((x,y,z), dtype=np.float64).transpose()

                    for i, m in enumerate(xyz):
                        m0, m1 = m
                        arr[:, i] = (arr[:,i] - m0)/(m1-m0)

                    plt = gl.GLLinePlotItem(pos=arr,
                                            #color=pg.glColor((i, n * 1.3)),
                                            #color=pg.glColor(255,123,123,125),
                                            #color=pg.glColor((iPos, l * 1.3)),
                                            color=pg.glColor(style.color()),
                                            width=1.0,
                                            antialias=True)

                    self.glPlotDataItems.append(plt)



                for i, item in enumerate(self.glPlotDataItems):
                   w.addItem(item)
                #self.glGridItem.scale(0.1,0.1,0.1, local=False)

                #w.setBackgroundColor(QColor('black'))
                #w.setCameraPosition(pos=(0.0, 0.0, 0.0), distance=1.)
                w.addItem(self.glGridItem)
                w.update()
                """
                for sensor, values in data.items():
                    if len(values['z']) > 0:
                        x = values['x']
                        y = values['y']
                        z = values['z']
                        
                        p2 = gl.GLSurfacePlotItem(x=x, y=y, z=z, shader='normalColor')
                        p2.translate(-10, -10, 0)
                        w.addItem(p2)
                """

    @QtCore.pyqtSlot()
    def updatePlot2D(self):
        if isinstance(self.plotSettingsModel2D, PlotSettingsModel2D):
            if DEBUG:
                print('Update plot...')

            pi = self.plot2D.getPlotItem()
            piDataItems = pi.listDataItems()

            locations = set()
            for plotSetting in self.plotSettingsModel2D:
                assert isinstance(plotSetting, TemporalProfile2DPlotStyle)
                locations.add(plotSetting.temporalProfile().mCoordinate)

                for pdi in plotSetting.mPlotItems:
                    assert isinstance(pdi, TemporalProfilePlotDataItem)
                    pdi.updateDataAndStyle()




            #for i in pi.dataItems:
            #    i.updateItems()

            #self.plot2D.update()
            #2. load pixel data
            self.loadCoordinate(list(locations))

            # https://github.com/pyqtgraph/pyqtgraph/blob/5195d9dd6308caee87e043e859e7e553b9887453/examples/customPlot.py
            return




def examplePixelLoader():

    # prepare QGIS environment
    if sys.platform == 'darwin':
        PATH_QGS = r'/Applications/QGIS.app/Contents/MacOS'
        os.environ['GDAL_DATA'] = r'/usr/local/Cellar/gdal/1.11.3_1/share'
    else:
        # assume OSGeo4W startup
        PATH_QGS = os.environ['QGIS_PREFIX_PATH']
    assert os.path.exists(PATH_QGS)

    qgsApp = QgsApplication([], True)
    QApplication.addLibraryPath(r'/Applications/QGIS.app/Contents/PlugIns')
    QApplication.addLibraryPath(r'/Applications/QGIS.app/Contents/PlugIns/qgis')
    qgsApp.setPrefixPath(PATH_QGS, True)
    qgsApp.initQgis()


    gb = QGroupBox()
    gb.setTitle('Sandbox')

    PL = PixelLoader()
    PL.setNumberOfThreads(2)

    if False:
        files = ['observationcloud/testdata/2014-07-26_LC82270652014207LGN00_BOA.bsq',
                 'observationcloud/testdata/2014-08-03_LE72270652014215CUB00_BOA.bsq'