/usr/share/qt5/doc/qtquick/qtquick-particles-imageparticle-example.html is in qtdeclarative5-doc-html 5.9.5-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 | <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- imageparticle.qdoc -->
<title>Qt Quick Particles Examples - Image Particles | Qt Quick 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="qtquick-index.html">Qt Quick</a></td><td >Qt Quick Particles Examples - Image Particles</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.5 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">Qt Quick Particles Examples - Image Particles</h1>
<span class="subtitle"></span>
<!-- $$$particles/imageparticle-description -->
<div class="descr"> <a name="details"></a>
<p class="centerAlign"><img src="images/qml-imageparticle-example.png" alt="" /></p><p>This is a collection of small QML examples relating to using Affectors in the particle system. Each example is a small QML file emphasizing a particular type or feature.</p>
<p>All at once shows off several of the features of <a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a> at the same time.</p>
<pre class="qml">
<span class="name">sprites</span>: [
<span class="type"><a href="qml-qtquick-sprite.html">Sprite</a></span> {
<span class="name">name</span>: <span class="string">"bear"</span>
<span class="name">source</span>: <span class="string">"../../images/bear_tiles.png"</span>
<span class="name">frameCount</span>: <span class="number">13</span>
<span class="name">frameDuration</span>: <span class="number">120</span>
}
]
<span class="name">colorVariation</span>: <span class="number">0.5</span>
<span class="name">rotationVelocityVariation</span>: <span class="number">360</span>
<span class="name">colorTable</span>: <span class="string">"../../images/colortable.png"</span>
</pre>
<p>Colored shows a simple <a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a> with some color variation.</p>
<pre class="qml">
<span class="type"><a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a></span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">source</span>: <span class="string">"qrc:///particleresources/star.png"</span>
<span class="name">alpha</span>: <span class="number">0</span>
<span class="name">alphaVariation</span>: <span class="number">0.2</span>
<span class="name">colorVariation</span>: <span class="number">1.0</span>
}
</pre>
<p>Color Table sets the color over life on the particles to provide a fixed rainbow effect.</p>
<pre class="qml">
<span class="name">source</span>: <span class="string">"qrc:///particleresources/glowdot.png"</span>
<span class="name">colorTable</span>: <span class="string">"../../images/colortable.png"</span>
<span class="name">sizeTable</span>: <span class="string">"../../images/colortable.png"</span>
</pre>
<p>Deformation spins and squishes a starfish particle.</p>
<pre class="qml">
<span class="type"><a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a></span> {
<span class="name">system</span>: <span class="name">sys</span>
<span class="name">groups</span>: [<span class="string">"goingLeft"</span>, <span class="string">"goingRight"</span>]
<span class="name">source</span>: <span class="string">"../../images/starfish_4.png"</span>
<span class="name">rotation</span>: <span class="number">90</span>
<span class="name">rotationVelocity</span>: <span class="number">90</span>
<span class="name">autoRotation</span>: <span class="number">true</span>
}
<span class="type"><a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a></span> {
<span class="name">system</span>: <span class="name">sys</span>
<span class="name">groups</span>: [<span class="string">"goingDown"</span>]
<span class="name">source</span>: <span class="string">"../../images/starfish_0.png"</span>
<span class="name">rotation</span>: <span class="number">180</span>
<span class="name">yVector</span>: <span class="name">PointDirection</span> { <span class="name">y</span>: <span class="number">0.5</span>; <span class="name">yVariation</span>: <span class="number">0.25</span>; <span class="name">xVariation</span>: <span class="number">0.25</span>; }
}
</pre>
<p>Rotation demonstrates the autoRotate property, so that particles rotate in the direction that they travel.</p>
<p>Sharing demonstrates what happens when multiple ImageParticles try to render the same particle. The following <a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a> renders the particles inside the <a href="qml-qtquick-listview.html">ListView</a>:</p>
<pre class="qml">
<span class="type"><a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a></span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">system</span>: <span class="name">particles</span>
<span class="name">source</span>: <span class="string">"../../images/flower.png"</span>
<span class="name">alpha</span>: <span class="number">0.1</span>
<span class="name">color</span>: <span class="string">"white"</span>
<span class="name">rotationVariation</span>: <span class="number">180</span>
<span class="name">z</span>: -<span class="number">1</span>
}
</pre>
<p>The following <a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a> is placed inside the list highlight, and renders the particles above the other <a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a>.</p>
<pre class="qml">
<span class="type"><a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a></span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">system</span>: <span class="name">particles</span>
<span class="name">source</span>: <span class="string">"../../images/flower.png"</span>
<span class="name">color</span>: <span class="string">"red"</span>
<span class="name">clip</span>: <span class="number">true</span>
<span class="name">alpha</span>: <span class="number">1.0</span>
}
</pre>
<p>Note that because it sets the color and alpha in this <a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a>, it renders the particles in a different color. Since it doesn't specify anything about the rotation, it shares the rotation with the other <a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a> so that the flowers are rotated the same way in both. Note that you can undo rotation in another <a href="qml-qtquick-particles-imageparticle.html">ImageParticle</a>, you just need to explicitly set rotationVariation to 0.</p>
<p>Sprites demonstrates using an image particle to render animated sprites instead of static images for each particle.</p>
<p>Files:</p>
<ul>
<li><a href="qtquick-particles-imageparticle-imageparticle-qml.html">particles/imageparticle/imageparticle.qml</a></li>
<li><a href="qtquick-particles-imageparticle-content-allatonce-qml.html">particles/imageparticle/content/allatonce.qml</a></li>
<li><a href="qtquick-particles-imageparticle-content-colored-qml.html">particles/imageparticle/content/colored.qml</a></li>
<li><a href="qtquick-particles-imageparticle-content-colortable-qml.html">particles/imageparticle/content/colortable.qml</a></li>
<li><a href="qtquick-particles-imageparticle-content-deformation-qml.html">particles/imageparticle/content/deformation.qml</a></li>
<li><a href="qtquick-particles-imageparticle-content-rotation-qml.html">particles/imageparticle/content/rotation.qml</a></li>
<li><a href="qtquick-particles-imageparticle-content-sharing-qml.html">particles/imageparticle/content/sharing.qml</a></li>
<li><a href="qtquick-particles-imageparticle-content-sprites-qml.html">particles/imageparticle/content/sprites.qml</a></li>
<li><a href="qtquick-particles-imageparticle-main-cpp.html">particles/imageparticle/main.cpp</a></li>
<li><a href="qtquick-particles-imageparticle-imageparticle-pro.html">particles/imageparticle/imageparticle.pro</a></li>
<li><a href="qtquick-particles-imageparticle-imageparticle-qmlproject.html">particles/imageparticle/imageparticle.qmlproject</a></li>
<li><a href="qtquick-particles-imageparticle-imageparticle-qrc.html">particles/imageparticle/imageparticle.qrc</a></li>
</ul>
</div>
<!-- @@@particles/imageparticle -->
</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>
|