profilevisualization.py

                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.glPlotDataItem[:]
            idx = self.ui.cbTemporalProfile3D.currentIndex()
            if idx >= 0:
                self.ui.cbTemporalProfile3D.currentIndex()
                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':[]}
                for tsd in 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))

                    t = date2num(tsd.date)
                    return

                    n = len(bandKeys)

                    pos = np.ones((n,3), dtype=np.float)

                    pos = 2
                    #pos = (N,3) array of floats specifying point locations.

                    plt = gl.GLLinePlotItem(pos=pts, color=pg.glColor((i, n * 1.3)), width=(i + 1) / 10.,
                                            antialias=True)
                    w.addItem(plt)
                """
                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

    for date in ['2012-01-01', '2017-12-23', '2017-12-31']:
        dt1 = np.datetime64(date)

        n = date2num(dt1)
        dt2 = num2date(n)

        assert dt1 == dt2

    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()