diff options
| author | Cristián Maureira-Fredes <Cristian.Maureira-Fredes@qt.io> | 2021-06-30 01:00:37 +0200 |
|---|---|---|
| committer | Cristián Maureira-Fredes <Cristian.Maureira-Fredes@qt.io> | 2021-07-01 16:31:49 +0200 |
| commit | a0bd6e79626b38973e2d2cdb0120581eb49d6d71 (patch) | |
| tree | 6199bf9a6d62c09eefb3511b8bc39aba421ccbb1 /examples/charts/dynamicspline/chart.py | |
| parent | 84275fbde79b31676f2c419997b89c94025d7877 (diff) | |
example: add charts dynamic spline
Task-number: PYSIDE-841
Pick-to: 6.1
Change-Id: I4a7ea69a6b1f9aaf190f66c464dcb9e19b20f4c5
Reviewed-by: Christian Tismer <tismer@stackless.com>
Diffstat (limited to 'examples/charts/dynamicspline/chart.py')
| -rw-r--r-- | examples/charts/dynamicspline/chart.py | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/examples/charts/dynamicspline/chart.py b/examples/charts/dynamicspline/chart.py new file mode 100644 index 000000000..21d782ab5 --- /dev/null +++ b/examples/charts/dynamicspline/chart.py @@ -0,0 +1,89 @@ +############################################################################# +## +## Copyright (C) 2021 The Qt Company Ltd. +## Contact: http://www.qt.io/licensing/ +## +## This file is part of the Qt for Python examples of the Qt Toolkit. +## +## $QT_BEGIN_LICENSE:BSD$ +## You may use this file under the terms of the BSD license as follows: +## +## "Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions are +## met: +## * Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## * Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in +## the documentation and/or other materials provided with the +## distribution. +## * Neither the name of The Qt Company Ltd nor the names of its +## contributors may be used to endorse or promote products derived +## from this software without specific prior written permission. +## +## +## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +## +## $QT_END_LICENSE$ +## +############################################################################# + +import random + +from PySide6.QtCharts import QChart, QSplineSeries, QValueAxis +from PySide6.QtCore import Qt, QTimer, Slot +from PySide6.QtGui import QPen + + +class Chart(QChart): + def __init__(self, parent=None): + super().__init__(QChart.ChartTypeCartesian, parent, Qt.WindowFlags()) + self._timer = QTimer() + self._series = QSplineSeries(self) + self._titles = [] + self._axisX = QValueAxis() + self._axisY = QValueAxis() + self._step = 0 + self._x = 5 + self._y = 1 + + self._timer.timeout.connect(self.handleTimeout) + self._timer.setInterval(1000) + + green = QPen(Qt.red) + green.setWidth(3) + self._series.setPen(green) + self._series.append(self._x, self._y) + + self.addSeries(self._series) + self.addAxis(self._axisX, Qt.AlignBottom) + self.addAxis(self._axisY, Qt.AlignLeft) + + self._series.attachAxis(self._axisX) + self._series.attachAxis(self._axisY) + self._axisX.setTickCount(5) + self._axisX.setRange(0, 10) + self._axisY.setRange(-5, 10) + + self._timer.start() + + @Slot() + def handleTimeout(self): + x = self.plotArea().width() / self._axisX.tickCount() + y = (self._axisX.max() - self._axisX.min()) / self._axisX.tickCount() + self._x += y + self._y = random.uniform(0, 5) - 2.5 + self._series.append(self._x, self._y) + self.scroll(x, 0) + if self._x == 100: + self._timer.stop() |