profilevisualization.py

        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 updatePersistentWidgets(self):
        model = self.tableView2DProfiles.model()
        if isinstance(model, PlotSettingsModel):
            colExpression = model.columnIndex(model.cnExpression)
            colStyle = model.columnIndex(model.cnStyle)

            for row in range(model.rowCount()):
                idxExpr = model.createIndex(row, colExpression)
                idxStyle = model.createIndex(row, colStyle)

                #self.TV.openPersistentEditor(idxExpr)
                #self.TV.openPersistentEditor(idxStyle)

                #self.TV.openPersistentEditor(model.createIndex(start, colStyle))
            s = ""


    def onRowsInserted(self, parent, start, end):
        model = self.tableView2DProfiles.model()
        if isinstance(model, PlotSettingsModel):
            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 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.plotSettingsModel, PlotSettingsModel):
            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.plotSettingsModel.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)
            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 PlotSettingsModel.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, TemporalProfilePlotStyle)
        self.setVisibility2D(sensorPlotStyle)

    def setVisibility2D(self, sensorPlotStyle):

        self.plot2D.update()


    def addData(self, sensorView = None):

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

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


        for plotSetting in self.plotSettingsModel:
            assert isinstance(plotSetting, TemporalProfilePlotStyle)
            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.plotSettingsModel:
                assert isinstance(plotSetting, TemporalProfilePlotStyle)
                for pdi in plotSetting.mPlotItems:
                    assert isinstance(pdi, TemporalProfilePlotDataItem)
                    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
                profileData = {}

                #x =
                #y =



                for sensor in tp.mTimeSeries.sensors():
                    profileData[sensor] = {'x':[],'y':[],'z':[]}


                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))
                    dataPos.append((x,y,z))

                xyz = [(x0,x1),(y0,y1),(z0,z1)]
                l = len(dataPos)
                for iPos, pos in enumerate(dataPos):
                    x,y,z = pos

                    arr = np.asarray(pos, 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)),
                                            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.plotSettingsModel, PlotSettingsModel):
            if DEBUG:
                print('Update plot...')

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

            locations = set()
            for plotSetting in self.plotSettingsModel:
                assert isinstance(plotSetting, TemporalProfilePlotStyle)
                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'
                 ]
    else:
        from timeseriesviewer.utils import file_search
        searchDir = r'H:\LandsatData\Landsat_NovoProgresso'
        files = file_search(searchDir, '*227065*band4.img', recursive=True)
        #files = files[0:3]

    lyr = QgsRasterLayer(files[0])
    coord = lyr.extent().center()
    crs = lyr.crs()

    l = QVBoxLayout()

    btnStart = QPushButton()
    btnStop = QPushButton()
    prog = QProgressBar()
    tboxResults = QPlainTextEdit()
    tboxResults.setMaximumHeight(300)
    tboxThreads = QPlainTextEdit()
    tboxThreads.setMaximumHeight(200)
    label = QLabel()
    label.setText('Progress')

    def showProgress(n,m,md):
        prog.setMinimum(0)
        prog.setMaximum(m)
        prog.setValue(n)

        info = []
        for k, v in md.items():
            info.append('{} = {}'.format(k,str(v)))
        tboxResults.setPlainText('\n'.join(info))
        #tboxThreads.setPlainText(PL.threadInfo())
        qgsApp.processEvents()

    PL.sigPixelLoaded.connect(showProgress)
    btnStart.setText('Start loading')
    btnStart.clicked.connect(lambda : PL.startLoading(files, coord, crs))
    btnStop.setText('Cancel')
    btnStop.clicked.connect(lambda: PL.cancelLoading())
    lh = QHBoxLayout()
    lh.addWidget(btnStart)
    lh.addWidget(btnStop)
    l.addLayout(lh)
    l.addWidget(prog)
    l.addWidget(tboxThreads)
    l.addWidget(tboxResults)

    gb.setLayout(l)
    gb.show()
    #rs.setBackgroundStyle('background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #222, stop:1 #333);')
    #rs.handle.setStyleSheet('background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #282, stop:1 #393);')
    qgsApp.exec_()
    qgsApp.exitQgis()

if __name__ == '__main__':
    import site, sys
    from timeseriesviewer import utils
    qgsApp = utils.initQgisApplication()
    DEBUG = True

    if False: #the ultimative test for floating point division correctness, at least on a DOY-level
        date1 = np.datetime64('1960-12-31','D')
        assert date1 == num2date(date2num(date1))
        #1960 - 12 - 31
        for year in  range(1960, 2057):
            for doy in range(1, daysPerYear(year)+1):
                dt = datetime.timedelta(days=doy - 1)
                date1 = np.datetime64('{}-01-01'.format(year)) + np.timedelta64(doy-1,'D')
                date2 = datetime.date(year=year, month=1, day=1) + datetime.timedelta(days=doy-1)

                assert date1 == num2date(date2num(date1), dt64=True), 'date1: {}'.format(date1)
                assert date2 == num2date(date2num(date2), dt64=False), 'date2: {}'.format(date1)

    ui = ProfileViewDockUI()
    ui.show()

    if True:
        TS = TimeSeries()
        STVis = SpectralTemporalVisualization(ui)
        STVis.setTimeSeries(TS)

        import example.Images
        from timeseriesviewer import file_search
        files = file_search(os.path.dirname(example.Images.__file__), '*.tif')
        TS.addFiles(files)
        ext = TS.getMaxSpatialExtent()
        cp1 = SpatialPoint(ext.crs(),ext.center())
        cpND = SpatialPoint(ext.crs(), 681151.214,-752388.476)
        cp2 = SpatialPoint(ext.crs(), ext.center())
        cp3 = SpatialPoint(ext.crs(), ext.center().x()+500, ext.center().y()+250)

        STVis.loadCoordinate(cpND)
        STVis.loadCoordinate(cp2)
        STVis.loadCoordinate(cp3)
        STVis.createNewPlotStyle()

        if False:
            for tp in STVis.tpCollection:
                assert isinstance(tp, TemporalProfile)
                tp.plot()


    qgsApp.exec_()
    qgsApp.exitQgis()