<?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 5.9</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 5.9</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">Qt 5.9.4 Reference Documentation</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"> <span class="comment">/**************************************************************************** ** ** 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. ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> import QtQuick 2.1 import QtQuick.Layouts 1.0 import QtQuick.Controls 1.0 import QtDataVisualization 1.1 import "." <span class="type">Item</span> { <span class="name">id</span>: <span class="name">mainView</span> <span class="name">width</span>: <span class="number">1280</span> <span class="name">height</span>: <span class="number">1024</span> property <span class="type">int</span> <span class="name">sampleColumns</span>: <span class="name">sampleSlider</span>.<span class="name">value</span> property <span class="type">int</span> <span class="name">sampleRows</span>: <span class="name">sampleColumns</span> <span class="operator">/</span> <span class="number">2</span> property <span class="type">int</span> <span class="name">sampleCache</span>: <span class="number">24</span> <span class="name">onSampleRowsChanged</span>: { <span class="name">surfaceSeries</span>.<span class="name">selectedPoint</span> <span class="operator">=</span> <span class="name">surfaceSeries</span>.<span class="name">invalidSelectionPosition</span> <span class="name">generateData</span>() } <span class="type">Item</span> { <span class="name">id</span>: <span class="name">dataView</span> <span class="name">anchors</span>.bottom: <span class="name">parent</span>.<span class="name">bottom</span> <span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span> <span class="name">height</span>: <span class="name">parent</span>.<span class="name">height</span> <span class="operator">-</span> <span class="name">buttonLayout</span>.<span class="name">height</span> <span class="type"><a href="qml-qtdatavisualization-surface3d.html">Surface3D</a></span> { <span class="name">id</span>: <span class="name">surfaceGraph</span> <span class="name">width</span>: <span class="name">dataView</span>.<span class="name">width</span> <span class="name">height</span>: <span class="name">dataView</span>.<span class="name">height</span> <span class="name">shadowQuality</span>: <span class="name">AbstractGraph3D</span>.<span class="name">ShadowQualityNone</span> <span class="name">selectionMode</span>: <span class="name">AbstractGraph3D</span>.<span class="name">SelectionSlice</span> <span class="operator">|</span> <span class="name">AbstractGraph3D</span>.<span class="name">SelectionItemAndRow</span> <span class="name">renderingMode</span>: <span class="name">AbstractGraph3D</span>.<span class="name">RenderDirectToBackground</span> <span class="name">axisX</span>.labelFormat: <span class="string">"%d ms"</span> <span class="name">axisY</span>.labelFormat: <span class="string">"%d W"</span> <span class="name">axisZ</span>.labelFormat: <span class="string">"%d mV"</span> <span class="name">axisX</span>.min: <span class="number">0</span> <span class="name">axisY</span>.min: <span class="number">0</span> <span class="name">axisZ</span>.min: <span class="number">0</span> <span class="name">axisX</span>.max: <span class="number">1000</span> <span class="name">axisY</span>.max: <span class="number">100</span> <span class="name">axisZ</span>.max: <span class="number">800</span> <span class="name">axisX</span>.segmentCount: <span class="number">4</span> <span class="name">axisY</span>.segmentCount: <span class="number">4</span> <span class="name">axisZ</span>.segmentCount: <span class="number">4</span> <span class="name">measureFps</span>: <span class="number">true</span> <span class="name">onCurrentFpsChanged</span>: { <span class="keyword">if</span> (<span class="name">fps</span> <span class="operator">></span> <span class="number">10</span>) <span class="name">fpsText</span>.<span class="name">text</span> <span class="operator">=</span> <span class="string">"FPS: "</span> <span class="operator">+</span> <span class="name">Math</span>.<span class="name">round</span>(<span class="name">surfaceGraph</span>.<span class="name">currentFps</span>) <span class="keyword">else</span> <span class="name">fpsText</span>.<span class="name">text</span> <span class="operator">=</span> <span class="string">"FPS: "</span> <span class="operator">+</span> <span class="name">Math</span>.<span class="name">round</span>(<span class="name">surfaceGraph</span>.<span class="name">currentFps</span> <span class="operator">*</span> <span class="number">10.0</span>) <span class="operator">/</span> <span class="number">10.0</span> } <span class="type"><a href="qml-qtdatavisualization-surface3dseries.html">Surface3DSeries</a></span> { <span class="name">id</span>: <span class="name">surfaceSeries</span> <span class="name">drawMode</span>: <span class="name">Surface3DSeries</span>.<span class="name">DrawSurface</span>; <span class="name">flatShadingEnabled</span>: <span class="number">false</span>; <span class="name">meshSmooth</span>: <span class="number">true</span> <span class="name">itemLabelFormat</span>: <span class="string">"@xLabel, @zLabel: @yLabel"</span> <span class="name">itemLabelVisible</span>: <span class="number">false</span> <span class="name">onItemLabelChanged</span>: { <span class="keyword">if</span> (<span class="name">surfaceSeries</span>.<span class="name">selectedPoint</span> <span class="operator">===</span> <span class="name">surfaceSeries</span>.<span class="name">invalidSelectionPosition</span>) <span class="name">selectionText</span>.<span class="name">text</span> <span class="operator">=</span> <span class="string">"No selection"</span> <span class="keyword">else</span> <span class="name">selectionText</span>.<span class="name">text</span> <span class="operator">=</span> <span class="name">surfaceSeries</span>.<span class="name">itemLabel</span> } } <span class="name">Component</span>.onCompleted: <span class="name">mainView</span>.<span class="name">generateData</span>() } } <span class="type">Timer</span> { <span class="name">id</span>: <span class="name">refreshTimer</span> <span class="name">interval</span>: <span class="number">1000</span> <span class="operator">/</span> <span class="name">frequencySlider</span>.<span class="name">value</span> <span class="name">running</span>: <span class="number">true</span> <span class="name">repeat</span>: <span class="number">true</span> <span class="name">onTriggered</span>: <span class="name">dataSource</span>.<span class="name">update</span>(<span class="name">surfaceSeries</span>) } <span class="type">Rectangle</span> { <span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span> <span class="name">height</span>: <span class="name">flatShadingToggle</span>.<span class="name">height</span> <span class="operator">*</span> <span class="number">2</span> <span class="name">anchors</span>.left: <span class="name">parent</span>.<span class="name">left</span> <span class="name">anchors</span>.top: <span class="name">parent</span>.<span class="name">top</span> <span class="name">color</span>: <span class="name">surfaceGraph</span>.<span class="name">theme</span>.<span class="name">backgroundColor</span> <span class="type">ColumnLayout</span> { <span class="name">anchors</span>.fill: <span class="name">parent</span> <span class="type">RowLayout</span> { <span class="name">id</span>: <span class="name">sliderLayout</span> <span class="name">anchors</span>.top: <span class="name">parent</span>.<span class="name">top</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.minimumHeight: <span class="name">flatShadingToggle</span>.<span class="name">height</span> <span class="name">spacing</span>: <span class="number">0</span> <span class="type">Rectangle</span> { <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.minimumWidth: <span class="name">samplesText</span>.<span class="name">implicitWidth</span> <span class="operator">+</span> <span class="number">120</span> <span class="name">Layout</span>.maximumWidth: <span class="name">samplesText</span>.<span class="name">implicitWidth</span> <span class="operator">+</span> <span class="number">120</span> <span class="name">Layout</span>.alignment: <span class="name">Qt</span>.<span class="name">AlignHCenter</span> <span class="operator">|</span> <span class="name">Qt</span>.<span class="name">AlignVCenter</span> <span class="name">border</span>.color: <span class="string">"gray"</span> <span class="name">border</span>.width: <span class="number">1</span> <span class="name">radius</span>: <span class="number">4</span> <span class="type">RowLayout</span> { <span class="name">anchors</span>.fill: <span class="name">parent</span> <span class="name">anchors</span>.margins: <span class="name">parent</span>.<span class="name">border</span>.<span class="name">width</span> <span class="operator">+</span> <span class="number">1</span> <span class="type">Slider</span> { <span class="name">id</span>: <span class="name">sampleSlider</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.alignment: <span class="name">Qt</span>.<span class="name">AlignHCenter</span> <span class="operator">|</span> <span class="name">Qt</span>.<span class="name">AlignVCenter</span> <span class="name">Layout</span>.minimumWidth: <span class="number">80</span> <span class="name">minimumValue</span>: <span class="name">mainView</span>.<span class="name">sampleCache</span> <span class="operator">*</span> <span class="number">2</span> <span class="name">maximumValue</span>: <span class="name">minimumValue</span> <span class="operator">*</span> <span class="number">10</span> <span class="name">stepSize</span>: <span class="name">mainView</span>.<span class="name">sampleCache</span> <span class="name">updateValueWhileDragging</span>: <span class="number">false</span> <span class="name">Component</span>.onCompleted: <span class="name">value</span> <span class="operator">=</span> <span class="name">minimumValue</span> <span class="operator">*</span> <span class="number">2</span> } <span class="type">Rectangle</span> { <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.minimumWidth: <span class="name">samplesText</span>.<span class="name">implicitWidth</span> <span class="operator">+</span> <span class="number">10</span> <span class="name">Layout</span>.maximumWidth: <span class="name">samplesText</span>.<span class="name">implicitWidth</span> <span class="operator">+</span> <span class="number">10</span> <span class="name">Layout</span>.alignment: <span class="name">Qt</span>.<span class="name">AlignHCenter</span> <span class="operator">|</span> <span class="name">Qt</span>.<span class="name">AlignVCenter</span> <span class="type">Text</span> { <span class="name">id</span>: <span class="name">samplesText</span> <span class="name">text</span>: <span class="string">"Samples: "</span> <span class="operator">+</span> (<span class="name">mainView</span>.<span class="name">sampleRows</span> <span class="operator">*</span> <span class="name">mainView</span>.<span class="name">sampleColumns</span>) <span class="name">anchors</span>.fill: <span class="name">parent</span> <span class="name">verticalAlignment</span>: <span class="name">Text</span>.<span class="name">AlignVCenter</span> <span class="name">horizontalAlignment</span>: <span class="name">Text</span>.<span class="name">AlignHCenter</span> } } } } <span class="type">Rectangle</span> { <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.minimumWidth: <span class="name">frequencyText</span>.<span class="name">implicitWidth</span> <span class="operator">+</span> <span class="number">120</span> <span class="name">Layout</span>.maximumWidth: <span class="name">frequencyText</span>.<span class="name">implicitWidth</span> <span class="operator">+</span> <span class="number">120</span> <span class="name">Layout</span>.alignment: <span class="name">Qt</span>.<span class="name">AlignHCenter</span> <span class="operator">|</span> <span class="name">Qt</span>.<span class="name">AlignVCenter</span> <span class="name">border</span>.color: <span class="string">"gray"</span> <span class="name">border</span>.width: <span class="number">1</span> <span class="name">radius</span>: <span class="number">4</span> <span class="type">RowLayout</span> { <span class="name">anchors</span>.fill: <span class="name">parent</span> <span class="name">anchors</span>.margins: <span class="name">parent</span>.<span class="name">border</span>.<span class="name">width</span> <span class="operator">+</span> <span class="number">1</span> <span class="type">Slider</span> { <span class="name">id</span>: <span class="name">frequencySlider</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.alignment: <span class="name">Qt</span>.<span class="name">AlignHCenter</span> <span class="operator">|</span> <span class="name">Qt</span>.<span class="name">AlignVCenter</span> <span class="name">Layout</span>.minimumWidth: <span class="number">80</span> <span class="name">minimumValue</span>: <span class="number">2</span> <span class="name">maximumValue</span>: <span class="number">60</span> <span class="name">stepSize</span>: <span class="number">2</span> <span class="name">updateValueWhileDragging</span>: <span class="number">true</span> <span class="name">value</span>: <span class="number">30</span> } <span class="type">Rectangle</span> { <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.minimumWidth: <span class="name">frequencyText</span>.<span class="name">implicitWidth</span> <span class="operator">+</span> <span class="number">10</span> <span class="name">Layout</span>.maximumWidth: <span class="name">frequencyText</span>.<span class="name">implicitWidth</span> <span class="operator">+</span> <span class="number">10</span> <span class="name">Layout</span>.alignment: <span class="name">Qt</span>.<span class="name">AlignHCenter</span> <span class="operator">|</span> <span class="name">Qt</span>.<span class="name">AlignVCenter</span> <span class="type">Text</span> { <span class="name">id</span>: <span class="name">frequencyText</span> <span class="name">text</span>: <span class="string">"Freq: "</span> <span class="operator">+</span> <span class="name">frequencySlider</span>.<span class="name">value</span> <span class="operator">+</span> <span class="string">" Hz"</span> <span class="name">anchors</span>.fill: <span class="name">parent</span> <span class="name">verticalAlignment</span>: <span class="name">Text</span>.<span class="name">AlignVCenter</span> <span class="name">horizontalAlignment</span>: <span class="name">Text</span>.<span class="name">AlignHCenter</span> } } } } <span class="type">Rectangle</span> { <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.minimumWidth: <span class="name">fpsText</span>.<span class="name">implicitWidth</span> <span class="operator">+</span> <span class="number">10</span> <span class="name">Layout</span>.maximumWidth: <span class="name">fpsText</span>.<span class="name">implicitWidth</span> <span class="operator">+</span> <span class="number">10</span> <span class="name">Layout</span>.alignment: <span class="name">Qt</span>.<span class="name">AlignHCenter</span> <span class="operator">|</span> <span class="name">Qt</span>.<span class="name">AlignVCenter</span> <span class="name">border</span>.color: <span class="string">"gray"</span> <span class="name">border</span>.width: <span class="number">1</span> <span class="name">radius</span>: <span class="number">4</span> <span class="type">Text</span> { <span class="name">id</span>: <span class="name">fpsText</span> <span class="name">anchors</span>.fill: <span class="name">parent</span> <span class="name">verticalAlignment</span>: <span class="name">Text</span>.<span class="name">AlignVCenter</span> <span class="name">horizontalAlignment</span>: <span class="name">Text</span>.<span class="name">AlignHCenter</span> } } <span class="type">Rectangle</span> { <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.minimumWidth: <span class="name">selectionText</span>.<span class="name">implicitWidth</span> <span class="operator">+</span> <span class="number">10</span> <span class="name">Layout</span>.alignment: <span class="name">Qt</span>.<span class="name">AlignHCenter</span> <span class="operator">|</span> <span class="name">Qt</span>.<span class="name">AlignVCenter</span> <span class="name">border</span>.color: <span class="string">"gray"</span> <span class="name">border</span>.width: <span class="number">1</span> <span class="name">radius</span>: <span class="number">4</span> <span class="type">Text</span> { <span class="name">id</span>: <span class="name">selectionText</span> <span class="name">anchors</span>.fill: <span class="name">parent</span> <span class="name">verticalAlignment</span>: <span class="name">Text</span>.<span class="name">AlignVCenter</span> <span class="name">horizontalAlignment</span>: <span class="name">Text</span>.<span class="name">AlignHCenter</span> <span class="name">text</span>: <span class="string">"No selection"</span> } } } <span class="type">RowLayout</span> { <span class="name">id</span>: <span class="name">buttonLayout</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.minimumHeight: <span class="name">flatShadingToggle</span>.<span class="name">height</span> <span class="name">anchors</span>.bottom: <span class="name">parent</span>.<span class="name">bottom</span> <span class="name">spacing</span>: <span class="number">0</span> <span class="type">NewButton</span> { <span class="name">id</span>: <span class="name">flatShadingToggle</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">text</span>: <span class="name">surfaceSeries</span>.<span class="name">flatShadingSupported</span> ? <span class="string">"Show Flat"</span> : <span class="string">"Flat not supported"</span> <span class="name">enabled</span>: <span class="name">surfaceSeries</span>.<span class="name">flatShadingSupported</span> <span class="name">onClicked</span>: { <span class="keyword">if</span> (<span class="name">surfaceSeries</span>.<span class="name">flatShadingEnabled</span> <span class="operator">===</span> <span class="number">true</span>) { <span class="name">surfaceSeries</span>.<span class="name">flatShadingEnabled</span> <span class="operator">=</span> <span class="number">false</span>; <span class="name">text</span> <span class="operator">=</span> <span class="string">"Show Flat"</span> } <span class="keyword">else</span> { <span class="name">surfaceSeries</span>.<span class="name">flatShadingEnabled</span> <span class="operator">=</span> <span class="number">true</span>; <span class="name">text</span> <span class="operator">=</span> <span class="string">"Show Smooth"</span> } } } <span class="type">NewButton</span> { <span class="name">id</span>: <span class="name">surfaceGridToggle</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">text</span>: <span class="string">"Show Surface Grid"</span> <span class="name">onClicked</span>: { <span class="keyword">if</span> (<span class="name">surfaceSeries</span>.<span class="name">drawMode</span> <span class="operator">&</span> <span class="name">Surface3DSeries</span>.<span class="name">DrawWireframe</span>) { <span class="name">surfaceSeries</span>.<span class="name">drawMode</span> <span class="operator">&=</span> ~<span class="name">Surface3DSeries</span>.<span class="name">DrawWireframe</span>; <span class="name">text</span> <span class="operator">=</span> <span class="string">"Show Surface Grid"</span> } <span class="keyword">else</span> { <span class="name">surfaceSeries</span>.<span class="name">drawMode</span> <span class="operator">|=</span> <span class="name">Surface3DSeries</span>.<span class="name">DrawWireframe</span>; <span class="name">text</span> <span class="operator">=</span> <span class="string">"Hide Surface Grid"</span> } } } <span class="type">NewButton</span> { <span class="name">id</span>: <span class="name">exitButton</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">text</span>: <span class="string">"Quit"</span> <span class="name">onClicked</span>: <span class="name">Qt</span>.<span class="name">quit</span>(<span class="number">0</span>); } } } } <span class="keyword">function</span> <span class="name">generateData</span>() { <span class="name">dataSource</span>.<span class="name">generateData</span>(<span class="name">mainView</span>.<span class="name">sampleCache</span>, <span class="name">mainView</span>.<span class="name">sampleRows</span>, <span class="name">mainView</span>.<span class="name">sampleColumns</span>, <span class="name">surfaceGraph</span>.<span class="name">axisX</span>.<span class="name">min</span>, <span class="name">surfaceGraph</span>.<span class="name">axisX</span>.<span class="name">max</span>, <span class="name">surfaceGraph</span>.<span class="name">axisY</span>.<span class="name">min</span>, <span class="name">surfaceGraph</span>.<span class="name">axisY</span>.<span class="name">max</span>, <span class="name">surfaceGraph</span>.<span class="name">axisZ</span>.<span class="name">min</span>, <span class="name">surfaceGraph</span>.<span class="name">axisZ</span>.<span class="name">max</span>) } } </pre> </div> <!-- @@@qmloscilloscope/qml/qmloscilloscope/main.qml --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2017 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>