<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>main.qml Example File | Qt Data Visualization 5.12.2</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtdatavisualization-index.html">Qt Data Visualization</a></td><td ><a href="qtdatavisualization-qmloscilloscope-example.html">Qt Quick 2 Oscilloscope Example</a></td><td >main.qml Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtdatavisualization-index.html">Qt Data Visualization | Commercial or GPLv3</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">main.qml Example File</h1> <span class="subtitle">qmloscilloscope/qml/qmloscilloscope/main.qml</span> <!-- $$$qmloscilloscope/qml/qmloscilloscope/main.qml-description --> <div class="descr"> <a name="details"></a> <pre class="qml"> /**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Data Visualization module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:GPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3 or (at your option) any later version ** approved by the KDE Free Qt Foundation. The licenses are as published by ** the Free Software Foundation and appearing in the file LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ import QtQuick 2.1 import QtQuick.Layouts 1.0 import QtQuick.Controls 1.0 import QtDataVisualization 1.1 import "." Item { id: mainView width: 1280 height: 1024 property int sampleColumns: sampleSlider.value property int sampleRows: sampleColumns / 2 property int sampleCache: 24 onSampleRowsChanged: { surfaceSeries.selectedPoint = surfaceSeries.invalidSelectionPosition generateData() } Item { id: dataView anchors.bottom: parent.bottom width: parent.width height: parent.height - buttonLayout.height Surface3D { id: surfaceGraph width: dataView.width height: dataView.height shadowQuality: AbstractGraph3D.ShadowQualityNone selectionMode: AbstractGraph3D.SelectionSlice | AbstractGraph3D.SelectionItemAndRow renderingMode: AbstractGraph3D.RenderDirectToBackground axisX.labelFormat: "%d ms" axisY.labelFormat: "%d W" axisZ.labelFormat: "%d mV" axisX.min: 0 axisY.min: 0 axisZ.min: 0 axisX.max: 1000 axisY.max: 100 axisZ.max: 800 axisX.segmentCount: 4 axisY.segmentCount: 4 axisZ.segmentCount: 4 measureFps: true onCurrentFpsChanged: { if (fps > 10) fpsText.text = "FPS: " + Math.round(surfaceGraph.currentFps) else fpsText.text = "FPS: " + Math.round(surfaceGraph.currentFps * 10.0) / 10.0 } Surface3DSeries { id: surfaceSeries drawMode: Surface3DSeries.DrawSurface; flatShadingEnabled: false; meshSmooth: true itemLabelFormat: "@xLabel, @zLabel: @yLabel" itemLabelVisible: false onItemLabelChanged: { if (surfaceSeries.selectedPoint === surfaceSeries.invalidSelectionPosition) selectionText.text = "No selection" else selectionText.text = surfaceSeries.itemLabel } } Component.onCompleted: mainView.generateData() } } Timer { id: refreshTimer interval: 1000 / frequencySlider.value running: true repeat: true onTriggered: dataSource.update(surfaceSeries) } Rectangle { width: parent.width height: flatShadingToggle.height * 2 anchors.left: parent.left anchors.top: parent.top color: surfaceGraph.theme.backgroundColor ColumnLayout { anchors.fill: parent RowLayout { id: sliderLayout anchors.top: parent.top Layout.fillHeight: true Layout.fillWidth: true Layout.minimumHeight: flatShadingToggle.height spacing: 0 Rectangle { Layout.fillHeight: true Layout.fillWidth: true Layout.minimumWidth: samplesText.implicitWidth + 120 Layout.maximumWidth: samplesText.implicitWidth + 120 Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter border.color: "gray" border.width: 1 radius: 4 RowLayout { anchors.fill: parent anchors.margins: parent.border.width + 1 Slider { id: sampleSlider Layout.fillHeight: true Layout.fillWidth: true Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter Layout.minimumWidth: 80 minimumValue: mainView.sampleCache * 2 maximumValue: minimumValue * 10 stepSize: mainView.sampleCache updateValueWhileDragging: false Component.onCompleted: value = minimumValue * 2 } Rectangle { Layout.fillHeight: true Layout.fillWidth: true Layout.minimumWidth: samplesText.implicitWidth + 10 Layout.maximumWidth: samplesText.implicitWidth + 10 Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter Text { id: samplesText text: "Samples: " + (mainView.sampleRows * mainView.sampleColumns) anchors.fill: parent verticalAlignment: Text.AlignVCenter horizontalAlignment: Text.AlignHCenter } } } } Rectangle { Layout.fillHeight: true Layout.fillWidth: true Layout.minimumWidth: frequencyText.implicitWidth + 120 Layout.maximumWidth: frequencyText.implicitWidth + 120 Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter border.color: "gray" border.width: 1 radius: 4 RowLayout { anchors.fill: parent anchors.margins: parent.border.width + 1 Slider { id: frequencySlider Layout.fillHeight: true Layout.fillWidth: true Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter Layout.minimumWidth: 80 minimumValue: 2 maximumValue: 60 stepSize: 2 updateValueWhileDragging: true value: 30 } Rectangle { Layout.fillHeight: true Layout.fillWidth: true Layout.minimumWidth: frequencyText.implicitWidth + 10 Layout.maximumWidth: frequencyText.implicitWidth + 10 Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter Text { id: frequencyText text: "Freq: " + frequencySlider.value + " Hz" anchors.fill: parent verticalAlignment: Text.AlignVCenter horizontalAlignment: Text.AlignHCenter } } } } Rectangle { Layout.fillHeight: true Layout.fillWidth: true Layout.minimumWidth: fpsText.implicitWidth + 10 Layout.maximumWidth: fpsText.implicitWidth + 10 Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter border.color: "gray" border.width: 1 radius: 4 Text { id: fpsText anchors.fill: parent verticalAlignment: Text.AlignVCenter horizontalAlignment: Text.AlignHCenter } } Rectangle { Layout.fillHeight: true Layout.fillWidth: true Layout.minimumWidth: selectionText.implicitWidth + 10 Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter border.color: "gray" border.width: 1 radius: 4 Text { id: selectionText anchors.fill: parent verticalAlignment: Text.AlignVCenter horizontalAlignment: Text.AlignHCenter text: "No selection" } } } RowLayout { id: buttonLayout Layout.fillHeight: true Layout.fillWidth: true Layout.minimumHeight: flatShadingToggle.height anchors.bottom: parent.bottom spacing: 0 NewButton { id: flatShadingToggle Layout.fillHeight: true Layout.fillWidth: true text: surfaceSeries.flatShadingSupported ? "Show Flat" : "Flat not supported" enabled: surfaceSeries.flatShadingSupported onClicked: { if (surfaceSeries.flatShadingEnabled === true) { surfaceSeries.flatShadingEnabled = false; text = "Show Flat" } else { surfaceSeries.flatShadingEnabled = true; text = "Show Smooth" } } } NewButton { id: surfaceGridToggle Layout.fillHeight: true Layout.fillWidth: true text: "Show Surface Grid" onClicked: { if (surfaceSeries.drawMode & Surface3DSeries.DrawWireframe) { surfaceSeries.drawMode &= ~Surface3DSeries.DrawWireframe; text = "Show Surface Grid" } else { surfaceSeries.drawMode |= Surface3DSeries.DrawWireframe; text = "Hide Surface Grid" } } } NewButton { id: exitButton Layout.fillHeight: true Layout.fillWidth: true text: "Quit" onClicked: Qt.quit(0); } } } } function generateData() { dataSource.generateData(mainView.sampleCache, mainView.sampleRows, mainView.sampleColumns, surfaceGraph.axisX.min, surfaceGraph.axisX.max, surfaceGraph.axisY.min, surfaceGraph.axisY.max, surfaceGraph.axisZ.min, surfaceGraph.axisZ.max) } } </pre> </div> <!-- @@@qmloscilloscope/qml/qmloscilloscope/main.qml --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>