<?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>trefoilknot.cpp 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-materials-cpp-example.html">Qt 3D: Materials C++ Example</a></td><td >trefoilknot.cpp 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">trefoilknot.cpp Example File</h1> <span class="subtitle">materials-cpp/trefoilknot.cpp</span> <!-- $$$materials-cpp/trefoilknot.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB). ** 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> <span class="preprocessor">#include "trefoilknot.h"</span> TrefoilKnot<span class="operator">::</span>TrefoilKnot(<span class="type"><a href="qt3dcore-module.html">Qt3DCore</a></span><span class="operator">::</span><span class="type">QNode</span> <span class="operator">*</span>parent) : <span class="type"><a href="qt3dcore-module.html">Qt3DCore</a></span><span class="operator">::</span><span class="type">QEntity</span>(parent) <span class="operator">,</span> m_mesh(<span class="keyword">new</span> <span class="type"><a href="qt3drender-module.html">Qt3DRender</a></span><span class="operator">::</span><span class="type">QMesh</span>()) <span class="operator">,</span> m_transform(<span class="keyword">new</span> <span class="type"><a href="qt3dcore-module.html">Qt3DCore</a></span><span class="operator">::</span><span class="type">QTransform</span>()) <span class="operator">,</span> m_position() <span class="operator">,</span> m_scale(<span class="number">1.0f</span>) { m_mesh<span class="operator">-</span><span class="operator">></span>setSource(<span class="type">QUrl</span>(<span class="string">"qrc:/assets/obj/trefoil.obj"</span>)); addComponent(m_mesh); addComponent(m_transform); } TrefoilKnot<span class="operator">::</span><span class="operator">~</span>TrefoilKnot() { } <span class="type">void</span> TrefoilKnot<span class="operator">::</span>updateTransform() { QMatrix4x4 m; m<span class="operator">.</span>translate(m_position); m<span class="operator">.</span>rotate(m_phi<span class="operator">,</span> QVector3D(<span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span>)); m<span class="operator">.</span>rotate(m_phi<span class="operator">,</span> QVector3D(<span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span>)); m<span class="operator">.</span>scale(m_scale); m_transform<span class="operator">-</span><span class="operator">></span>setMatrix(m); } <span class="type">float</span> TrefoilKnot<span class="operator">::</span>theta() <span class="keyword">const</span> { <span class="keyword">return</span> m_theta; } <span class="type">float</span> TrefoilKnot<span class="operator">::</span>phi() <span class="keyword">const</span> { <span class="keyword">return</span> m_phi; } QVector3D TrefoilKnot<span class="operator">::</span>position() <span class="keyword">const</span> { <span class="keyword">return</span> m_position; } <span class="type">float</span> TrefoilKnot<span class="operator">::</span>scale() <span class="keyword">const</span> { <span class="keyword">return</span> m_scale; } <span class="type">void</span> TrefoilKnot<span class="operator">::</span>setTheta(<span class="type">float</span> theta) { <span class="keyword">if</span> (m_theta <span class="operator">=</span><span class="operator">=</span> theta) <span class="keyword">return</span>; m_theta <span class="operator">=</span> theta; <span class="keyword">emit</span> thetaChanged(theta); updateTransform(); } <span class="type">void</span> TrefoilKnot<span class="operator">::</span>setPhi(<span class="type">float</span> phi) { <span class="keyword">if</span> (m_phi <span class="operator">=</span><span class="operator">=</span> phi) <span class="keyword">return</span>; m_phi <span class="operator">=</span> phi; <span class="keyword">emit</span> phiChanged(phi); updateTransform(); } <span class="type">void</span> TrefoilKnot<span class="operator">::</span>setPosition(QVector3D position) { <span class="keyword">if</span> (m_position <span class="operator">=</span><span class="operator">=</span> position) <span class="keyword">return</span>; m_position <span class="operator">=</span> position; <span class="keyword">emit</span> positionChanged(position); updateTransform(); } <span class="type">void</span> TrefoilKnot<span class="operator">::</span>setScale(<span class="type">float</span> scale) { <span class="keyword">if</span> (m_scale <span class="operator">=</span><span class="operator">=</span> scale) <span class="keyword">return</span>; m_scale <span class="operator">=</span> scale; <span class="keyword">emit</span> scaleChanged(scale); updateTransform(); } </pre> </div> <!-- @@@materials-cpp/trefoilknot.cpp --> </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>