profilevisualization.py

    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(qgisDebug=True)
    DEBUG = False


    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()
        for tsd in TS:
            ext = tsd.spatialExtent()
            if ext.crs().description() != '':
                break
        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.createNewPlotStyle2D()

        def addProfile():
            x0,y1 = ext.upperLeftPt()
            x1,y0 = ext.lowerRightPt()

            x = x0 + (x1 - x0) * np.random.sample()
            y = y0 + (y1 - y0) * np.random.sample()
            pt = SpatialPoint(ext.crs(), x, y)
            STVis.loadCoordinate(pt)


        btn = QPushButton('Add Profile')
        btn.clicked.connect(addProfile)
        btn.show()

        if False:
            for tp in STVis.tpCollection:
                assert isinstance(tp, TemporalProfile)
                tp.plot()
        #STVis.tpCollection.removeTemporalProfiles(STVis.tpCollection[-1])
        STVis.createNewPlotStyle3D()
        STVis.ui.listWidget.setCurrentRow(1)

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

    qgsApp.exec_()
    qgsApp.exitQgis()