<?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>CameraController.qml Example File | Qt 3D 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="qt3d-index.html">Qt 3D</a></td><td ><a href="qt3d-simple-qml-example.html">Qt 3D: Simple QML Example</a></td><td >CameraController.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">CameraController.qml Example File</h1> <span class="subtitle">simple-qml/CameraController.qml</span> <!-- $$$simple-qml/CameraController.qml-description --> <div class="descr"> <a name="details"></a> <pre class="qml"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2015 Paul Lemire <paul.lemire350@gmail.com> ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt3D module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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. ** ** BSD License Usage ** Alternatively, 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." ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> import Qt3D.Core 2.0 import Qt3D.Render 2.0 import Qt3D.Input 2.0 import Qt3D.Logic 2.0 import QtQml 2.2 <span class="type"><a href="qml-qt3d-core-entity.html">Entity</a></span> { <span class="name">id</span>: <span class="name">root</span> property <span class="type"><a href="qml-qt3d-render-camera.html">Camera</a></span> <span class="name">camera</span> property <span class="type">real</span> <span class="name">linearSpeed</span>: <span class="number">10.0</span> property <span class="type">real</span> <span class="name">orbitSpeed</span>: -<span class="number">180.0</span> property <span class="type">real</span> <span class="name">lookSpeed</span>: <span class="number">180.0</span> property <span class="type">bool</span> <span class="name">firstPersonMode</span>: <span class="number">true</span> <span class="type">QtObject</span> { <span class="name">id</span>: <span class="name">d</span> readonly property <span class="type">vector3d</span> <span class="name">firstPersonUp</span>: <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">0</span>, <span class="number">1</span>, <span class="number">0</span>) property <span class="type">bool</span> <span class="name">leftMouseButtonPressed</span>: <span class="number">false</span> property <span class="type">bool</span> <span class="name">rightMouseButtonPressed</span>: <span class="number">false</span> property <span class="type">real</span> <span class="name">vx</span>: <span class="number">0</span>; property <span class="type">real</span> <span class="name">vy</span>: <span class="number">0</span>; property <span class="type">real</span> <span class="name">vz</span>: <span class="number">0</span>; property <span class="type">real</span> <span class="name">dx</span>: <span class="number">0</span> property <span class="type">real</span> <span class="name">dy</span>: <span class="number">0</span> property <span class="type">bool</span> <span class="name">fineMotion</span>: <span class="number">false</span> } <span class="type"><a href="qml-qt3d-input-keyboarddevice.html">KeyboardDevice</a></span> { <span class="name">id</span>: <span class="name">keyboardSourceDevice</span> } <span class="type"><a href="qml-qt3d-input-mousedevice.html">MouseDevice</a></span> { <span class="name">id</span>: <span class="name">mouseSourceDevice</span> <span class="name">sensitivity</span>: <span class="name">d</span>.<span class="name">fineMotion</span> ? <span class="number">0.01</span> : <span class="number">0.1</span> } <span class="type"><a href="qml-qt3d-input-logicaldevice.html">LogicalDevice</a></span> { <span class="name">id</span>: <span class="name">cameraControlDevice</span> <span class="name">actions</span>: [ <span class="type"><a href="qml-qt3d-input-action.html">Action</a></span> { <span class="name">name</span>: <span class="string">"LMB"</span> <span class="name">inputs</span>: [ <span class="type"><a href="qml-qt3d-input-actioninput.html">ActionInput</a></span> { <span class="name">sourceDevice</span>: <span class="name">mouseSourceDevice</span> <span class="name">buttons</span>: [<span class="name">MouseEvent</span>.<span class="name">LeftButton</span>] } ] }, <span class="type"><a href="qml-qt3d-input-action.html">Action</a></span> { <span class="name">name</span>: <span class="string">"RMB"</span> <span class="name">inputs</span>: [ <span class="type"><a href="qml-qt3d-input-actioninput.html">ActionInput</a></span> { <span class="name">sourceDevice</span>: <span class="name">mouseSourceDevice</span> <span class="name">buttons</span>: [<span class="name">MouseEvent</span>.<span class="name">RightButton</span>] } ] }, <span class="type"><a href="qml-qt3d-input-action.html">Action</a></span> { <span class="name">name</span>: <span class="string">"fineMotion"</span> <span class="name">inputs</span>: [ <span class="type"><a href="qml-qt3d-input-actioninput.html">ActionInput</a></span> { <span class="name">sourceDevice</span>: <span class="name">keyboardSourceDevice</span> <span class="name">buttons</span>: [<span class="name">Qt</span>.<span class="name">Key_Shift</span>] } ] } ] <span class="comment">// actions</span> <span class="name">axes</span>: [ <span class="comment">// Rotation</span> <span class="type"><a href="qml-qt3d-input-axis.html">Axis</a></span> { <span class="name">name</span>: <span class="string">"RX"</span> <span class="name">inputs</span>: [ <span class="type"><a href="qml-qt3d-input-analogaxisinput.html">AnalogAxisInput</a></span> { <span class="name">sourceDevice</span>: <span class="name">mouseSourceDevice</span> <span class="name">axis</span>: <span class="name">MouseDevice</span>.<span class="name">X</span> } ] }, <span class="type"><a href="qml-qt3d-input-axis.html">Axis</a></span> { <span class="name">name</span>: <span class="string">"RY"</span> <span class="name">inputs</span>: [ <span class="type"><a href="qml-qt3d-input-analogaxisinput.html">AnalogAxisInput</a></span> { <span class="name">sourceDevice</span>: <span class="name">mouseSourceDevice</span> <span class="name">axis</span>: <span class="name">MouseDevice</span>.<span class="name">Y</span> } ] }, <span class="comment">// Translation</span> <span class="type"><a href="qml-qt3d-input-axis.html">Axis</a></span> { <span class="name">name</span>: <span class="string">"TX"</span> <span class="name">inputs</span>: [ <span class="type"><a href="qml-qt3d-input-buttonaxisinput.html">ButtonAxisInput</a></span> { <span class="name">sourceDevice</span>: <span class="name">keyboardSourceDevice</span> <span class="name">buttons</span>: [<span class="name">Qt</span>.<span class="name">Key_Left</span>] <span class="name">scale</span>: -<span class="number">1.0</span> }, <span class="type"><a href="qml-qt3d-input-buttonaxisinput.html">ButtonAxisInput</a></span> { <span class="name">sourceDevice</span>: <span class="name">keyboardSourceDevice</span> <span class="name">buttons</span>: [<span class="name">Qt</span>.<span class="name">Key_Right</span>] <span class="name">scale</span>: <span class="number">1.0</span> } ] }, <span class="type"><a href="qml-qt3d-input-axis.html">Axis</a></span> { <span class="name">name</span>: <span class="string">"TZ"</span> <span class="name">inputs</span>: [ <span class="type"><a href="qml-qt3d-input-buttonaxisinput.html">ButtonAxisInput</a></span> { <span class="name">sourceDevice</span>: <span class="name">keyboardSourceDevice</span> <span class="name">buttons</span>: [<span class="name">Qt</span>.<span class="name">Key_Up</span>] <span class="name">scale</span>: <span class="number">1.0</span> }, <span class="type"><a href="qml-qt3d-input-buttonaxisinput.html">ButtonAxisInput</a></span> { <span class="name">sourceDevice</span>: <span class="name">keyboardSourceDevice</span> <span class="name">buttons</span>: [<span class="name">Qt</span>.<span class="name">Key_Down</span>] <span class="name">scale</span>: -<span class="number">1.0</span> } ] }, <span class="type"><a href="qml-qt3d-input-axis.html">Axis</a></span> { <span class="name">name</span>: <span class="string">"TY"</span> <span class="name">inputs</span>: [ <span class="type"><a href="qml-qt3d-input-buttonaxisinput.html">ButtonAxisInput</a></span> { <span class="name">sourceDevice</span>: <span class="name">keyboardSourceDevice</span> <span class="name">buttons</span>: [<span class="name">Qt</span>.<span class="name">Key_PageUp</span>] <span class="name">scale</span>: <span class="number">1.0</span> }, <span class="type"><a href="qml-qt3d-input-buttonaxisinput.html">ButtonAxisInput</a></span> { <span class="name">sourceDevice</span>: <span class="name">keyboardSourceDevice</span> <span class="name">buttons</span>: [<span class="name">Qt</span>.<span class="name">Key_PageDown</span>] <span class="name">scale</span>: -<span class="number">1.0</span> } ] } ] <span class="comment">// axes</span> } <span class="name">components</span>: [ <span class="type">AxisActionHandler</span> { <span class="name">id</span>: <span class="name">handler</span> <span class="name">logicalDevice</span>: <span class="name">cameraControlDevice</span> <span class="name">onAxisValueChanged</span>: { <span class="keyword">switch</span> (<span class="name">name</span>) { <span class="keyword">case</span> <span class="string">"TX"</span>: { <span class="name">d</span>.<span class="name">vx</span> <span class="operator">=</span> <span class="name">axisValue</span> <span class="operator">*</span> <span class="name">linearSpeed</span> <span class="keyword">break</span>; } <span class="keyword">case</span> <span class="string">"TY"</span>: { <span class="name">d</span>.<span class="name">vy</span> <span class="operator">=</span> <span class="name">axisValue</span> <span class="operator">*</span> <span class="name">linearSpeed</span> <span class="keyword">break</span>; } <span class="keyword">case</span> <span class="string">"TZ"</span>: { <span class="name">d</span>.<span class="name">vz</span> <span class="operator">=</span> <span class="name">axisValue</span> <span class="operator">*</span> <span class="name">linearSpeed</span> <span class="keyword">break</span>; } <span class="keyword">case</span> <span class="string">"RX"</span>: { <span class="name">d</span>.<span class="name">dx</span> <span class="operator">=</span> <span class="name">axisValue</span>; <span class="keyword">break</span>; } <span class="keyword">case</span> <span class="string">"RY"</span>: { <span class="name">d</span>.<span class="name">dy</span> <span class="operator">=</span> <span class="name">axisValue</span>; <span class="keyword">break</span>; } } } <span class="name">onActionStarted</span>: { <span class="keyword">switch</span> (<span class="name">name</span>) { <span class="keyword">case</span> <span class="string">"LMB"</span>: { <span class="name">d</span>.<span class="name">leftMouseButtonPressed</span> <span class="operator">=</span> <span class="number">true</span>; <span class="keyword">break</span>; } <span class="keyword">case</span> <span class="string">"RMB"</span>: { <span class="name">d</span>.<span class="name">rightMouseButtonPressed</span> <span class="operator">=</span> <span class="number">true</span>; <span class="keyword">break</span>; } <span class="keyword">case</span> <span class="string">"fineMotion"</span>: { <span class="name">console</span>.<span class="name">log</span>(<span class="string">"fineMotion started"</span>) <span class="name">d</span>.<span class="name">fineMotion</span> <span class="operator">=</span> <span class="number">true</span>; <span class="keyword">break</span>; } } } <span class="name">onActionFinished</span>: { <span class="keyword">switch</span> (<span class="name">name</span>) { <span class="keyword">case</span> <span class="string">"LMB"</span>: { <span class="name">d</span>.<span class="name">leftMouseButtonPressed</span> <span class="operator">=</span> <span class="number">false</span>; <span class="keyword">break</span>; } <span class="keyword">case</span> <span class="string">"RMB"</span>: { <span class="name">d</span>.<span class="name">rightMouseButtonPressed</span> <span class="operator">=</span> <span class="number">false</span>; <span class="keyword">break</span>; } <span class="keyword">case</span> <span class="string">"fineMotion"</span>: { <span class="name">console</span>.<span class="name">log</span>(<span class="string">"fineMotion finished"</span>) <span class="name">d</span>.<span class="name">fineMotion</span> <span class="operator">=</span> <span class="number">false</span>; <span class="keyword">break</span>; } } } }, <span class="type"><a href="qml-qt3d-logic-frameaction.html">FrameAction</a></span> { <span class="name">onTriggered</span>: { <span class="comment">// The time difference since the last frame is passed in as the</span> <span class="comment">// argument dt. It is a floating point value in units of seconds.</span> <span class="name">root</span>.<span class="name">camera</span>.<span class="name">translate</span>(<span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="name">d</span>.<span class="name">vx</span>, <span class="name">d</span>.<span class="name">vy</span>, <span class="name">d</span>.<span class="name">vz</span>).<span class="name">times</span>(<span class="name">dt</span>)) <span class="keyword">if</span> (<span class="name">d</span>.<span class="name">leftMouseButtonPressed</span>) { <span class="keyword">if</span> (<span class="name">root</span>.<span class="name">firstPersonMode</span>) <span class="name">root</span>.<span class="name">camera</span>.<span class="name">pan</span>(<span class="name">root</span>.<span class="name">lookSpeed</span> <span class="operator">*</span> <span class="name">d</span>.<span class="name">dx</span> <span class="operator">*</span> <span class="name">dt</span>, <span class="name">d</span>.<span class="name">firstPersonUp</span>) <span class="keyword">else</span> <span class="name">root</span>.<span class="name">camera</span>.<span class="name">pan</span>(<span class="name">root</span>.<span class="name">lookSpeed</span> <span class="operator">*</span> <span class="name">d</span>.<span class="name">dx</span> <span class="operator">*</span> <span class="name">dt</span>) <span class="name">root</span>.<span class="name">camera</span>.<span class="name">tilt</span>(<span class="name">root</span>.<span class="name">lookSpeed</span> <span class="operator">*</span> <span class="name">d</span>.<span class="name">dy</span> <span class="operator">*</span> <span class="name">dt</span>) } <span class="keyword">else</span> <span class="keyword">if</span> (<span class="name">d</span>.<span class="name">rightMouseButtonPressed</span>) { <span class="keyword">if</span> (<span class="name">root</span>.<span class="name">firstPersonMode</span>) <span class="name">root</span>.<span class="name">camera</span>.<span class="name">panAboutViewCenter</span>(<span class="name">root</span>.<span class="name">lookSpeed</span> <span class="operator">*</span> <span class="name">d</span>.<span class="name">dx</span> <span class="operator">*</span> <span class="name">dt</span>, <span class="name">d</span>.<span class="name">firstPersonUp</span>) <span class="keyword">else</span> <span class="name">root</span>.<span class="name">camera</span>.<span class="name">panAboutViewCenter</span>(<span class="name">root</span>.<span class="name">lookSpeed</span> <span class="operator">*</span> <span class="name">d</span>.<span class="name">dx</span> <span class="operator">*</span> <span class="name">dt</span>) <span class="name">root</span>.<span class="name">camera</span>.<span class="name">tiltAboutViewCenter</span>(<span class="name">root</span>.<span class="name">orbitSpeed</span> <span class="operator">*</span> <span class="name">d</span>.<span class="name">dy</span> <span class="operator">*</span> <span class="name">dt</span>) } } } ] <span class="comment">// components</span> } </pre> </div> <!-- @@@simple-qml/CameraController.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>