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<h1 class="title">main.qml Example File</h1>
<span class="subtitle">qmlaxisdrag/qml/qmlaxisdrag/main.qml</span>
<!-- $$$qmlaxisdrag/qml/qmlaxisdrag/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 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">800</span>
<span class="name">height</span>: <span class="number">600</span>
<span class="name">visible</span>: <span class="number">true</span>
property <span class="type">int</span> <span class="name">selectedAxisLabel</span>: -<span class="number">1</span>
property <span class="type">real</span> <span class="name">dragSpeedModifier</span>: <span class="number">100.0</span>
property <span class="type">int</span> <span class="name">currentMouseX</span>: -<span class="number">1</span>
property <span class="type">int</span> <span class="name">currentMouseY</span>: -<span class="number">1</span>
property <span class="type">int</span> <span class="name">previousMouseX</span>: -<span class="number">1</span>
property <span class="type">int</span> <span class="name">previousMouseY</span>: -<span class="number">1</span>
<span class="type">ListModel</span> {
<span class="name">id</span>: <span class="name">graphModel</span>
<span class="type">ListElement</span>{ <span class="name">xPos</span>: <span class="number">0.0</span>; <span class="name">yPos</span>: <span class="number">0.0</span>; <span class="name">zPos</span>: <span class="number">0.0</span>; <span class="name">rotation</span>: <span class="string">"@0,0,0,0"</span> }
<span class="type">ListElement</span>{ <span class="name">xPos</span>: <span class="number">1.0</span>; <span class="name">yPos</span>: <span class="number">1.0</span>; <span class="name">zPos</span>: <span class="number">1.0</span>; <span class="name">rotation</span>: <span class="string">"@45,1,1,1"</span> }
}
<span class="type">Timer</span> {
<span class="name">id</span>: <span class="name">dataTimer</span>
<span class="name">interval</span>: <span class="number">1</span>
<span class="name">running</span>: <span class="number">true</span>
<span class="name">repeat</span>: <span class="number">true</span>
property <span class="type">bool</span> <span class="name">isIncreasing</span>: <span class="number">true</span>
property <span class="type">real</span> <span class="name">rotationAngle</span>: <span class="number">0</span>
<span class="keyword">function</span> <span class="name">generateQuaternion</span>() {
<span class="keyword">return</span> <span class="string">"@"</span> <span class="operator">+</span> <span class="name">Math</span>.<span class="name">random</span>() <span class="operator">*</span> <span class="number">360</span> <span class="operator">+</span> <span class="string">","</span> <span class="operator">+</span> <span class="name">Math</span>.<span class="name">random</span>() <span class="operator">+</span> <span class="string">","</span>
<span class="operator">+</span> <span class="name">Math</span>.<span class="name">random</span>() <span class="operator">+</span> <span class="string">","</span> <span class="operator">+</span> <span class="name">Math</span>.<span class="name">random</span>()
}
<span class="keyword">function</span> <span class="name">appendRow</span>() {
<span class="name">graphModel</span>.<span class="name">append</span>({"xPos": <span class="name">Math</span>.<span class="name">random</span>(),
"yPos": <span class="name">Math</span>.<span class="name">random</span>(),
"zPos": <span class="name">Math</span>.<span class="name">random</span>(),
"rotation": <span class="name">generateQuaternion</span>()
});
}
<span class="name">onTriggered</span>: {
<span class="name">rotationAngle</span> <span class="operator">=</span> <span class="name">rotationAngle</span> <span class="operator">+</span> <span class="number">1</span>
<span class="name">qtCube</span>.<span class="name">setRotationAxisAndAngle</span>(<span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">1</span>,<span class="number">0</span>,<span class="number">1</span>), <span class="name">rotationAngle</span>)
<span class="name">scatterSeries</span>.<span class="name">setMeshAxisAndAngle</span>(<span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">1</span>,<span class="number">1</span>,<span class="number">1</span>), <span class="name">rotationAngle</span>)
<span class="keyword">if</span> (<span class="name">isIncreasing</span>) {
<span class="keyword">for</span> (<span class="keyword">var</span> <span class="name">i</span> = <span class="number">0</span>; <span class="name">i</span> <span class="operator"><</span> <span class="number">10</span>; i++)
<span class="name">appendRow</span>()
<span class="keyword">if</span> (<span class="name">graphModel</span>.<span class="name">count</span> <span class="operator">></span> <span class="number">2002</span>) {
<span class="name">scatterGraph</span>.<span class="name">theme</span> <span class="operator">=</span> <span class="name">isabelleTheme</span>
<span class="name">isIncreasing</span> <span class="operator">=</span> <span class="number">false</span>
}
} <span class="keyword">else</span> {
<span class="name">graphModel</span>.<span class="name">remove</span>(<span class="number">2</span>, <span class="number">10</span>);
<span class="keyword">if</span> (<span class="name">graphModel</span>.<span class="name">count</span> <span class="operator">==</span> <span class="number">2</span>) {
<span class="name">scatterGraph</span>.<span class="name">theme</span> <span class="operator">=</span> <span class="name">dynamicColorTheme</span>
<span class="name">isIncreasing</span> <span class="operator">=</span> <span class="number">true</span>
}
}
}
}
<span class="type"><a href="qml-qtdatavisualization-themecolor.html">ThemeColor</a></span> {
<span class="name">id</span>: <span class="name">dynamicColor</span>
ColorAnimation on <span class="name">color</span> {
<span class="name">from</span>: <span class="string">"red"</span>
<span class="name">to</span>: <span class="string">"yellow"</span>
<span class="name">duration</span>: <span class="number">2000</span>
<span class="name">loops</span>: <span class="name">Animation</span>.<span class="name">Infinite</span>
}
}
<span class="type"><a href="qml-qtdatavisualization-theme3d.html">Theme3D</a></span> {
<span class="name">id</span>: <span class="name">dynamicColorTheme</span>
<span class="name">type</span>: <span class="name">Theme3D</span>.<span class="name">ThemeEbony</span>
<span class="name">baseColors</span>: [<span class="name">dynamicColor</span>]
<span class="name">font</span>.pointSize: <span class="number">50</span>
<span class="name">labelBorderEnabled</span>: <span class="number">true</span>
<span class="name">labelBackgroundColor</span>: <span class="string">"gold"</span>
<span class="name">labelTextColor</span>: <span class="string">"black"</span>
}
<span class="type"><a href="qml-qtdatavisualization-theme3d.html">Theme3D</a></span> {
<span class="name">id</span>: <span class="name">isabelleTheme</span>
<span class="name">type</span>: <span class="name">Theme3D</span>.<span class="name">ThemeIsabelle</span>
<span class="name">font</span>.pointSize: <span class="number">50</span>
<span class="name">labelBorderEnabled</span>: <span class="number">true</span>
<span class="name">labelBackgroundColor</span>: <span class="string">"gold"</span>
<span class="name">labelTextColor</span>: <span class="string">"black"</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="type"><a href="qml-qtdatavisualization-scatter3d.html">Scatter3D</a></span> {
<span class="name">id</span>: <span class="name">scatterGraph</span>
<span class="name">inputHandler</span>: <span class="number">null</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">theme</span>: <span class="name">dynamicColorTheme</span>
<span class="name">shadowQuality</span>: <span class="name">AbstractGraph3D</span>.<span class="name">ShadowQualityLow</span>
<span class="name">scene</span>.activeCamera.yRotation: <span class="number">45.0</span>
<span class="name">scene</span>.activeCamera.xRotation: <span class="number">45.0</span>
<span class="name">scene</span>.activeCamera.zoomLevel: <span class="number">75.0</span>
<span class="type"><a href="qml-qtdatavisualization-scatter3dseries.html">Scatter3DSeries</a></span> {
<span class="name">id</span>: <span class="name">scatterSeries</span>
<span class="name">itemLabelFormat</span>: <span class="string">"X:@xLabel Y:@yLabel Z:@zLabel"</span>
<span class="name">mesh</span>: <span class="name">Abstract3DSeries</span>.<span class="name">MeshCube</span>
<span class="type"><a href="qml-qtdatavisualization-itemmodelscatterdataproxy.html">ItemModelScatterDataProxy</a></span> {
<span class="name">itemModel</span>: <span class="name">graphModel</span>
<span class="name">xPosRole</span>: <span class="string">"xPos"</span>
<span class="name">yPosRole</span>: <span class="string">"yPos"</span>
<span class="name">zPosRole</span>: <span class="string">"zPos"</span>
<span class="name">rotationRole</span>: <span class="string">"rotation"</span>
}
}
<span class="name">customItemList</span>: [
<span class="type"><a href="qml-qtdatavisualization-custom3ditem.html">Custom3DItem</a></span> {
<span class="name">id</span>: <span class="name">qtCube</span>
<span class="name">meshFile</span>: <span class="string">":/mesh/cube"</span>
<span class="name">textureFile</span>: <span class="string">":/texture/texture"</span>
<span class="name">position</span>: <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">0.65</span>,<span class="number">0.35</span>,<span class="number">0.65</span>)
<span class="name">scaling</span>: <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">0.3</span>,<span class="number">0.3</span>,<span class="number">0.3</span>)
}
]
<span class="name">onSelectedElementChanged</span>: {
<span class="keyword">if</span> (<span class="name">selectedElement</span> <span class="operator">>=</span> <span class="name">AbstractGraph3D</span>.<span class="name">ElementAxisXLabel</span>
<span class="operator">&&</span> <span class="name">selectedElement</span> <span class="operator"><=</span> <span class="name">AbstractGraph3D</span>.<span class="name">ElementAxisZLabel</span>)
<span class="name">selectedAxisLabel</span> <span class="operator">=</span> <span class="name">selectedElement</span>
<span class="keyword">else</span>
<span class="name">selectedAxisLabel</span> <span class="operator">=</span> -<span class="number">1</span>
}
}
<span class="type">MouseArea</span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">hoverEnabled</span>: <span class="number">true</span>
<span class="name">acceptedButtons</span>: <span class="name">Qt</span>.<span class="name">LeftButton</span>
<span class="name">onPositionChanged</span>: {
<span class="name">currentMouseX</span> <span class="operator">=</span> <span class="name">mouse</span>.<span class="name">x</span>;
<span class="name">currentMouseY</span> <span class="operator">=</span> <span class="name">mouse</span>.<span class="name">y</span>;
<span class="keyword">if</span> (<span class="name">pressed</span> <span class="operator">&&</span> <span class="name">selectedAxisLabel</span> <span class="operator">!=</span> -<span class="number">1</span>)
<span class="name">dragAxis</span>();
<span class="name">previousMouseX</span> <span class="operator">=</span> <span class="name">currentMouseX</span>;
<span class="name">previousMouseY</span> <span class="operator">=</span> <span class="name">currentMouseY</span>;
}
<span class="name">onPressed</span>: {
<span class="name">scatterGraph</span>.<span class="name">scene</span>.<span class="name">selectionQueryPosition</span> <span class="operator">=</span> <span class="name">Qt</span>.<span class="name">point</span>(<span class="name">mouse</span>.<span class="name">x</span>, <span class="name">mouse</span>.<span class="name">y</span>);
}
<span class="name">onReleased</span>: {
<span class="comment">// We need to clear mouse positions and selected axis, because touch devices cannot</span>
<span class="comment">// track position all the time</span>
<span class="name">selectedAxisLabel</span> <span class="operator">=</span> -<span class="number">1</span>
<span class="name">currentMouseX</span> <span class="operator">=</span> -<span class="number">1</span>
<span class="name">currentMouseY</span> <span class="operator">=</span> -<span class="number">1</span>
<span class="name">previousMouseX</span> <span class="operator">=</span> -<span class="number">1</span>
<span class="name">previousMouseY</span> <span class="operator">=</span> -<span class="number">1</span>
}
}
}
<span class="keyword">function</span> <span class="name">dragAxis</span>() {
<span class="comment">// Do nothing if previous mouse position is uninitialized</span>
<span class="keyword">if</span> (<span class="name">previousMouseX</span> <span class="operator">===</span> -<span class="number">1</span>)
<span class="keyword">return</span>
<span class="comment">// Directional drag multipliers based on rotation. Camera is locked to 45 degrees, so we</span>
<span class="comment">// can use one precalculated value instead of calculating xx, xy, zx and zy individually</span>
var <span class="name">cameraMultiplier</span> = <span class="number">0.70710678</span>
<span class="comment">// Calculate the mouse move amount</span>
var <span class="name">moveX</span> = <span class="name">currentMouseX</span> <span class="operator">-</span> <span class="name">previousMouseX</span>
var <span class="name">moveY</span> = <span class="name">currentMouseY</span> <span class="operator">-</span> <span class="name">previousMouseY</span>
<span class="comment">// Adjust axes</span>
<span class="keyword">switch</span> (<span class="name">selectedAxisLabel</span>) {
<span class="keyword">case</span> <span class="name">AbstractGraph3D</span>.<span class="name">ElementAxisXLabel</span>:
var <span class="name">distance</span> = ((<span class="name">moveX</span> <span class="operator">-</span> <span class="name">moveY</span>) <span class="operator">*</span> <span class="name">cameraMultiplier</span>) <span class="operator">/</span> <span class="name">dragSpeedModifier</span>
<span class="comment">// Check if we need to change min or max first to avoid invalid ranges</span>
<span class="keyword">if</span> (<span class="name">distance</span> <span class="operator">></span> <span class="number">0</span>) {
<span class="name">scatterGraph</span>.<span class="name">axisX</span>.<span class="name">min</span> <span class="operator">-=</span> <span class="name">distance</span>
<span class="name">scatterGraph</span>.<span class="name">axisX</span>.<span class="name">max</span> <span class="operator">-=</span> <span class="name">distance</span>
} <span class="keyword">else</span> {
<span class="name">scatterGraph</span>.<span class="name">axisX</span>.<span class="name">max</span> <span class="operator">-=</span> <span class="name">distance</span>
<span class="name">scatterGraph</span>.<span class="name">axisX</span>.<span class="name">min</span> <span class="operator">-=</span> <span class="name">distance</span>
}
<span class="keyword">break</span>
<span class="keyword">case</span> <span class="name">AbstractGraph3D</span>.<span class="name">ElementAxisYLabel</span>:
<span class="name">distance</span> <span class="operator">=</span> <span class="name">moveY</span> <span class="operator">/</span> <span class="name">dragSpeedModifier</span>
<span class="comment">// Check if we need to change min or max first to avoid invalid ranges</span>
<span class="keyword">if</span> (<span class="name">distance</span> <span class="operator">></span> <span class="number">0</span>) {
<span class="name">scatterGraph</span>.<span class="name">axisY</span>.<span class="name">max</span> <span class="operator">+=</span> <span class="name">distance</span>
<span class="name">scatterGraph</span>.<span class="name">axisY</span>.<span class="name">min</span> <span class="operator">+=</span> <span class="name">distance</span>
} <span class="keyword">else</span> {
<span class="name">scatterGraph</span>.<span class="name">axisY</span>.<span class="name">min</span> <span class="operator">+=</span> <span class="name">distance</span>
<span class="name">scatterGraph</span>.<span class="name">axisY</span>.<span class="name">max</span> <span class="operator">+=</span> <span class="name">distance</span>
}
<span class="keyword">break</span>
<span class="keyword">case</span> <span class="name">AbstractGraph3D</span>.<span class="name">ElementAxisZLabel</span>:
<span class="name">distance</span> <span class="operator">=</span> ((<span class="name">moveX</span> <span class="operator">+</span> <span class="name">moveY</span>) <span class="operator">*</span> <span class="name">cameraMultiplier</span>) <span class="operator">/</span> <span class="name">dragSpeedModifier</span>
<span class="comment">// Check if we need to change min or max first to avoid invalid ranges</span>
<span class="keyword">if</span> (<span class="name">distance</span> <span class="operator">></span> <span class="number">0</span>) {
<span class="name">scatterGraph</span>.<span class="name">axisZ</span>.<span class="name">max</span> <span class="operator">+=</span> <span class="name">distance</span>
<span class="name">scatterGraph</span>.<span class="name">axisZ</span>.<span class="name">min</span> <span class="operator">+=</span> <span class="name">distance</span>
} <span class="keyword">else</span> {
<span class="name">scatterGraph</span>.<span class="name">axisZ</span>.<span class="name">min</span> <span class="operator">+=</span> <span class="name">distance</span>
<span class="name">scatterGraph</span>.<span class="name">axisZ</span>.<span class="name">max</span> <span class="operator">+=</span> <span class="name">distance</span>
}
<span class="keyword">break</span>
}
}
<span class="type">NewButton</span> {
<span class="name">id</span>: <span class="name">rangeToggle</span>
<span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span> <span class="operator">/</span> <span class="number">3</span> <span class="comment">// We're adding 3 buttons and want to divide them equally</span>
<span class="name">text</span>: <span class="string">"Use Preset Range"</span>
<span class="name">anchors</span>.left: <span class="name">parent</span>.<span class="name">left</span>
property <span class="type">bool</span> <span class="name">autoRange</span>: <span class="number">true</span>
<span class="name">onClicked</span>: {
<span class="keyword">if</span> (<span class="name">autoRange</span>) {
<span class="name">text</span> <span class="operator">=</span> <span class="string">"Use Automatic Range"</span>
<span class="name">scatterGraph</span>.<span class="name">axisX</span>.<span class="name">min</span> <span class="operator">=</span> <span class="number">0.3</span>
<span class="name">scatterGraph</span>.<span class="name">axisX</span>.<span class="name">max</span> <span class="operator">=</span> <span class="number">0.7</span>
<span class="name">scatterGraph</span>.<span class="name">axisY</span>.<span class="name">min</span> <span class="operator">=</span> <span class="number">0.3</span>
<span class="name">scatterGraph</span>.<span class="name">axisY</span>.<span class="name">max</span> <span class="operator">=</span> <span class="number">0.7</span>
<span class="name">scatterGraph</span>.<span class="name">axisZ</span>.<span class="name">min</span> <span class="operator">=</span> <span class="number">0.3</span>
<span class="name">scatterGraph</span>.<span class="name">axisZ</span>.<span class="name">max</span> <span class="operator">=</span> <span class="number">0.7</span>
<span class="name">autoRange</span> <span class="operator">=</span> <span class="number">false</span>
<span class="name">dragSpeedModifier</span> <span class="operator">=</span> <span class="number">200.0</span>
} <span class="keyword">else</span> {
<span class="name">text</span> <span class="operator">=</span> <span class="string">"Use Preset Range"</span>
<span class="name">autoRange</span> <span class="operator">=</span> <span class="number">true</span>
<span class="name">dragSpeedModifier</span> <span class="operator">=</span> <span class="number">100.0</span>
}
<span class="name">scatterGraph</span>.<span class="name">axisX</span>.<span class="name">autoAdjustRange</span> <span class="operator">=</span> <span class="name">autoRange</span>
<span class="name">scatterGraph</span>.<span class="name">axisY</span>.<span class="name">autoAdjustRange</span> <span class="operator">=</span> <span class="name">autoRange</span>
<span class="name">scatterGraph</span>.<span class="name">axisZ</span>.<span class="name">autoAdjustRange</span> <span class="operator">=</span> <span class="name">autoRange</span>
}
}
<span class="type">NewButton</span> {
<span class="name">id</span>: <span class="name">orthoToggle</span>
<span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span> <span class="operator">/</span> <span class="number">3</span>
<span class="name">text</span>: <span class="string">"Display Orthographic"</span>
<span class="name">anchors</span>.left: <span class="name">rangeToggle</span>.<span class="name">right</span>
<span class="name">onClicked</span>: {
<span class="keyword">if</span> (<span class="name">scatterGraph</span>.<span class="name">orthoProjection</span>) {
<span class="name">text</span> <span class="operator">=</span> <span class="string">"Display Orthographic"</span>;
<span class="name">scatterGraph</span>.<span class="name">orthoProjection</span> <span class="operator">=</span> <span class="number">false</span>
<span class="comment">// Orthographic projection disables shadows, so we need to switch them back on</span>
<span class="name">scatterGraph</span>.<span class="name">shadowQuality</span> <span class="operator">=</span> <span class="name">AbstractGraph3D</span>.<span class="name">ShadowQualityLow</span>
} <span class="keyword">else</span> {
<span class="name">text</span> <span class="operator">=</span> <span class="string">"Display Perspective"</span>;
<span class="name">scatterGraph</span>.<span class="name">orthoProjection</span> <span class="operator">=</span> <span class="number">true</span>
}
}
}
<span class="type">NewButton</span> {
<span class="name">id</span>: <span class="name">exitButton</span>
<span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span> <span class="operator">/</span> <span class="number">3</span>
<span class="name">text</span>: <span class="string">"Quit"</span>
<span class="name">anchors</span>.left: <span class="name">orthoToggle</span>.<span class="name">right</span>
<span class="name">onClicked</span>: <span class="name">Qt</span>.<span class="name">quit</span>(<span class="number">0</span>);
}
}
</pre>
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<!-- @@@qmlaxisdrag/qml/qmlaxisdrag/main.qml -->
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<acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
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