<?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-qmlspectrogram-example.html">Qt Quick 2 Spectrogram 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">qmlspectrogram/qml/qmlspectrogram/main.qml</span> <!-- $$$qmlspectrogram/qml/qmlspectrogram/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.Window 2.1 import QtDataVisualization 1.2 import "." <span class="type">Window</span> { <span class="name">id</span>: <span class="name">mainview</span> <span class="name">title</span>: <span class="string">"Qt Quick 2 Spectrogram Example"</span> <span class="name">visible</span>: <span class="number">true</span> <span class="name">width</span>: <span class="number">1024</span> <span class="name">height</span>: <span class="number">768</span> <span class="name">color</span>: <span class="name">surfaceGraph</span>.<span class="name">theme</span>.<span class="name">windowColor</span> <span class="type">Data</span> { <span class="name">id</span>: <span class="name">surfaceData</span> } <span class="type">Item</span> { <span class="name">id</span>: <span class="name">surfaceView</span> <span class="name">width</span>: <span class="name">mainview</span>.<span class="name">width</span> <span class="name">height</span>: <span class="name">mainview</span>.<span class="name">height</span> <span class="name">anchors</span>.top: <span class="name">mainview</span>.<span class="name">top</span> <span class="name">anchors</span>.left: <span class="name">mainview</span>.<span class="name">left</span> <span class="type"><a href="qml-qtdatavisualization-colorgradient.html">ColorGradient</a></span> { <span class="name">id</span>: <span class="name">surfaceGradient</span> <span class="type"><a href="qml-qtdatavisualization-colorgradientstop.html">ColorGradientStop</a></span> { <span class="name">position</span>: <span class="number">0.0</span>; <span class="name">color</span>: <span class="string">"black"</span> } <span class="type"><a href="qml-qtdatavisualization-colorgradientstop.html">ColorGradientStop</a></span> { <span class="name">position</span>: <span class="number">0.2</span>; <span class="name">color</span>: <span class="string">"red"</span> } <span class="type"><a href="qml-qtdatavisualization-colorgradientstop.html">ColorGradientStop</a></span> { <span class="name">position</span>: <span class="number">0.5</span>; <span class="name">color</span>: <span class="string">"blue"</span> } <span class="type"><a href="qml-qtdatavisualization-colorgradientstop.html">ColorGradientStop</a></span> { <span class="name">position</span>: <span class="number">0.8</span>; <span class="name">color</span>: <span class="string">"yellow"</span> } <span class="type"><a href="qml-qtdatavisualization-colorgradientstop.html">ColorGradientStop</a></span> { <span class="name">position</span>: <span class="number">1.0</span>; <span class="name">color</span>: <span class="string">"white"</span> } } <span class="type"><a href="qml-qtdatavisualization-valueaxis3d.html">ValueAxis3D</a></span> { <span class="name">id</span>: <span class="name">xAxis</span> <span class="name">segmentCount</span>: <span class="number">8</span> <span class="name">labelFormat</span>: <span class="string">"%i\u00B0"</span> <span class="name">title</span>: <span class="string">"Angle"</span> <span class="name">titleVisible</span>: <span class="number">true</span> <span class="name">titleFixed</span>: <span class="number">false</span> } <span class="type"><a href="qml-qtdatavisualization-valueaxis3d.html">ValueAxis3D</a></span> { <span class="name">id</span>: <span class="name">yAxis</span> <span class="name">segmentCount</span>: <span class="number">8</span> <span class="name">labelFormat</span>: <span class="string">"%i \%"</span> <span class="name">title</span>: <span class="string">"Value"</span> <span class="name">titleVisible</span>: <span class="number">true</span> <span class="name">labelAutoRotation</span>: <span class="number">0</span> <span class="name">titleFixed</span>: <span class="number">false</span> } <span class="type"><a href="qml-qtdatavisualization-valueaxis3d.html">ValueAxis3D</a></span> { <span class="name">id</span>: <span class="name">zAxis</span> <span class="name">segmentCount</span>: <span class="number">5</span> <span class="name">labelFormat</span>: <span class="string">"%i nm"</span> <span class="name">title</span>: <span class="string">"Radius"</span> <span class="name">titleVisible</span>: <span class="number">true</span> <span class="name">titleFixed</span>: <span class="number">false</span> } <span class="type"><a href="qml-qtdatavisualization-theme3d.html">Theme3D</a></span> { <span class="name">id</span>: <span class="name">customTheme</span> <span class="name">type</span>: <span class="name">Theme3D</span>.<span class="name">ThemeQt</span> <span class="comment">// Don't show specular spotlight as we don't want it to distort the colors</span> <span class="name">lightStrength</span>: <span class="number">0.0</span> <span class="name">ambientLightStrength</span>: <span class="number">1.0</span> <span class="name">backgroundEnabled</span>: <span class="number">false</span> <span class="name">gridLineColor</span>: <span class="string">"#AAAAAA"</span> <span class="name">windowColor</span>: <span class="string">"#EEEEEE"</span> } <span class="type"><a href="qml-qtdatavisualization-touchinputhandler3d.html">TouchInputHandler3D</a></span> { <span class="name">id</span>: <span class="name">customInputHandler</span> <span class="name">rotationEnabled</span>: <span class="number">false</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">surfaceView</span>.<span class="name">width</span> <span class="name">height</span>: <span class="name">surfaceView</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">SelectionItemAndColumn</span> <span class="name">axisX</span>: <span class="name">xAxis</span> <span class="name">axisY</span>: <span class="name">yAxis</span> <span class="name">axisZ</span>: <span class="name">zAxis</span> <span class="name">theme</span>: <span class="name">customTheme</span> <span class="name">inputHandler</span>: <span class="name">customInputHandler</span> <span class="comment">// Remove the perspective and view the graph from top down to achieve 2D effect</span> <span class="name">orthoProjection</span>: <span class="number">true</span> <span class="name">scene</span>.activeCamera.cameraPreset: <span class="name">Camera3D</span>.<span class="name">CameraPresetDirectlyAbove</span> <span class="name">flipHorizontalGrid</span>: <span class="number">true</span> <span class="name">radialLabelOffset</span>: <span class="number">0.01</span> <span class="name">horizontalAspectRatio</span>: <span class="number">1</span> <span class="name">scene</span>.activeCamera.zoomLevel: <span class="number">85</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">flatShadingEnabled</span>: <span class="number">false</span> <span class="name">drawMode</span>: <span class="name">Surface3DSeries</span>.<span class="name">DrawSurface</span> <span class="name">baseGradient</span>: <span class="name">surfaceGradient</span> <span class="name">colorStyle</span>: <span class="name">Theme3D</span>.<span class="name">ColorStyleRangeGradient</span> <span class="name">itemLabelFormat</span>: <span class="string">"(@xLabel, @zLabel): @yLabel"</span> <span class="type"><a href="qml-qtdatavisualization-itemmodelsurfacedataproxy.html">ItemModelSurfaceDataProxy</a></span> { <span class="name">itemModel</span>: <span class="name">surfaceData</span>.<span class="name">model</span> <span class="name">rowRole</span>: <span class="string">"radius"</span> <span class="name">columnRole</span>: <span class="string">"angle"</span> <span class="name">yPosRole</span>: <span class="string">"value"</span> } } } } <span class="type">RowLayout</span> { <span class="name">id</span>: <span class="name">buttonLayout</span> <span class="name">anchors</span>.top: <span class="name">parent</span>.<span class="name">top</span> <span class="name">anchors</span>.left: <span class="name">parent</span>.<span class="name">left</span> <span class="name">anchors</span>.right: <span class="name">parent</span>.<span class="name">right</span> <span class="name">opacity</span>: <span class="number">0.5</span> <span class="type">NewButton</span> { <span class="name">id</span>: <span class="name">polarToggle</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">text</span>: <span class="string">"Switch to polar"</span> <span class="name">onClicked</span>: { <span class="keyword">if</span> (<span class="name">surfaceGraph</span>.<span class="name">polar</span> <span class="operator">===</span> <span class="number">false</span>) { <span class="name">surfaceGraph</span>.<span class="name">polar</span> <span class="operator">=</span> <span class="number">true</span> <span class="name">text</span> <span class="operator">=</span> <span class="string">"Switch to cartesian"</span> } <span class="keyword">else</span> { <span class="name">surfaceGraph</span>.<span class="name">polar</span> <span class="operator">=</span> <span class="number">false</span> <span class="name">text</span> <span class="operator">=</span> <span class="string">"Switch to polar"</span> } } } <span class="type">NewButton</span> { <span class="name">id</span>: <span class="name">orthoToggle</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">text</span>: <span class="string">"Switch to perspective"</span> <span class="name">onClicked</span>: { <span class="keyword">if</span> (<span class="name">surfaceGraph</span>.<span class="name">orthoProjection</span> <span class="operator">===</span> <span class="number">true</span>) { <span class="name">surfaceGraph</span>.<span class="name">orthoProjection</span> <span class="operator">=</span> <span class="number">false</span>; <span class="name">xAxis</span>.<span class="name">labelAutoRotation</span> <span class="operator">=</span> <span class="number">30</span> <span class="name">yAxis</span>.<span class="name">labelAutoRotation</span> <span class="operator">=</span> <span class="number">30</span> <span class="name">zAxis</span>.<span class="name">labelAutoRotation</span> <span class="operator">=</span> <span class="number">30</span> <span class="name">customInputHandler</span>.<span class="name">rotationEnabled</span> <span class="operator">=</span> <span class="number">true</span> <span class="name">text</span> <span class="operator">=</span> <span class="string">"Switch to orthographic"</span> } <span class="keyword">else</span> { <span class="name">surfaceGraph</span>.<span class="name">orthoProjection</span> <span class="operator">=</span> <span class="number">true</span>; <span class="name">surfaceGraph</span>.<span class="name">scene</span>.<span class="name">activeCamera</span>.<span class="name">cameraPreset</span> <span class="operator">=</span> <span class="name">Camera3D</span>.<span class="name">CameraPresetDirectlyAbove</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">xAxis</span>.<span class="name">labelAutoRotation</span> <span class="operator">=</span> <span class="number">0</span> <span class="name">yAxis</span>.<span class="name">labelAutoRotation</span> <span class="operator">=</span> <span class="number">0</span> <span class="name">zAxis</span>.<span class="name">labelAutoRotation</span> <span class="operator">=</span> <span class="number">0</span> <span class="name">customInputHandler</span>.<span class="name">rotationEnabled</span> <span class="operator">=</span> <span class="number">false</span> <span class="name">text</span> <span class="operator">=</span> <span class="string">"Switch to perspective"</span> } } } <span class="type">NewButton</span> { <span class="name">id</span>: <span class="name">flipGridToggle</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">text</span>: <span class="string">"Toggle axis grid on top"</span> <span class="name">onClicked</span>: { <span class="name">onClicked</span>: { <span class="keyword">if</span> (<span class="name">surfaceGraph</span>.<span class="name">flipHorizontalGrid</span> <span class="operator">===</span> <span class="number">true</span>) { <span class="name">surfaceGraph</span>.<span class="name">flipHorizontalGrid</span> <span class="operator">=</span> <span class="number">false</span>; } <span class="keyword">else</span> { <span class="name">surfaceGraph</span>.<span class="name">flipHorizontalGrid</span> <span class="operator">=</span> <span class="number">true</span>; } } } } <span class="type">NewButton</span> { <span class="name">id</span>: <span class="name">labelOffsetToggle</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">text</span>: <span class="string">"Toggle radial label position"</span> <span class="name">visible</span>: <span class="name">surfaceGraph</span>.<span class="name">polar</span> <span class="name">onClicked</span>: { <span class="keyword">if</span> (<span class="name">surfaceGraph</span>.<span class="name">radialLabelOffset</span> <span class="operator">>=</span> <span class="number">1.0</span>) { <span class="name">surfaceGraph</span>.<span class="name">radialLabelOffset</span> <span class="operator">=</span> <span class="number">0.01</span> } <span class="keyword">else</span> { <span class="name">surfaceGraph</span>.<span class="name">radialLabelOffset</span> <span class="operator">=</span> <span class="number">1.0</span> } } } <span class="type">NewButton</span> { <span class="name">id</span>: <span class="name">surfaceGridToggle</span> <span class="name">Layout</span>.fillWidth: <span class="number">true</span> <span class="name">Layout</span>.fillHeight: <span class="number">true</span> <span class="name">text</span>: <span class="string">"Toggle surface grid"</span> <span class="name">visible</span>: !<span class="name">surfaceGraph</span>.<span class="name">orthoProjection</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="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="type">Rectangle</span> { <span class="name">id</span>: <span class="name">legend</span> <span class="name">anchors</span>.margins: <span class="number">20</span> <span class="name">anchors</span>.bottom: <span class="name">parent</span>.<span class="name">bottom</span> <span class="name">anchors</span>.top: <span class="name">buttonLayout</span>.<span class="name">bottom</span> <span class="name">anchors</span>.right: <span class="name">parent</span>.<span class="name">right</span> <span class="name">border</span>.color: <span class="string">"black"</span> <span class="name">border</span>.width: <span class="number">1</span> <span class="name">width</span>: <span class="number">50</span> <span class="name">rotation</span>: <span class="number">180</span> <span class="name">gradient</span>: <span class="name">Gradient</span> { <span class="type">GradientStop</span> { <span class="name">position</span>: <span class="number">0.0</span>; <span class="name">color</span>: <span class="string">"black"</span> } <span class="type">GradientStop</span> { <span class="name">position</span>: <span class="number">0.2</span>; <span class="name">color</span>: <span class="string">"red"</span> } <span class="type">GradientStop</span> { <span class="name">position</span>: <span class="number">0.5</span>; <span class="name">color</span>: <span class="string">"blue"</span> } <span class="type">GradientStop</span> { <span class="name">position</span>: <span class="number">0.8</span>; <span class="name">color</span>: <span class="string">"yellow"</span> } <span class="type">GradientStop</span> { <span class="name">position</span>: <span class="number">1.0</span>; <span class="name">color</span>: <span class="string">"white"</span> } } } <span class="type">Text</span> { <span class="name">anchors</span>.verticalCenter: <span class="name">legend</span>.<span class="name">bottom</span> <span class="name">anchors</span>.right: <span class="name">legend</span>.<span class="name">left</span> <span class="name">anchors</span>.margins: <span class="number">2</span> <span class="name">text</span>: <span class="name">surfaceGraph</span>.<span class="name">axisY</span>.<span class="name">min</span> <span class="operator">+</span> <span class="string">"%"</span> } <span class="type">Text</span> { <span class="name">anchors</span>.verticalCenter: <span class="name">legend</span>.<span class="name">verticalCenter</span> <span class="name">anchors</span>.right: <span class="name">legend</span>.<span class="name">left</span> <span class="name">anchors</span>.margins: <span class="number">2</span> <span class="name">text</span>: (<span class="name">surfaceGraph</span>.<span class="name">axisY</span>.<span class="name">max</span> <span class="operator">+</span> <span class="name">surfaceGraph</span>.<span class="name">axisY</span>.<span class="name">min</span>) <span class="operator">/</span> <span class="number">2</span> <span class="operator">+</span> <span class="string">"%"</span> } <span class="type">Text</span> { <span class="name">anchors</span>.verticalCenter: <span class="name">legend</span>.<span class="name">top</span> <span class="name">anchors</span>.right: <span class="name">legend</span>.<span class="name">left</span> <span class="name">anchors</span>.margins: <span class="number">2</span> <span class="name">text</span>: <span class="name">surfaceGraph</span>.<span class="name">axisY</span>.<span class="name">max</span> <span class="operator">+</span> <span class="string">"%"</span> } } </pre> </div> <!-- @@@qmlspectrogram/qml/qmlspectrogram/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>