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2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
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6 | ** This file is part of the Qt Data Visualization module of the Qt Toolkit. |
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8 | ** $QT_BEGIN_LICENSE:GPL$ |
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28 | ****************************************************************************/ |
29 | |
30 | #include "scatterdatamodifier.h" |
31 | #include <QtDataVisualization/qscatterdataproxy.h> |
32 | #include <QtDataVisualization/qvalue3daxis.h> |
33 | #include <QtDataVisualization/q3dscene.h> |
34 | #include <QtDataVisualization/q3dcamera.h> |
35 | #include <QtDataVisualization/qscatter3dseries.h> |
36 | #include <QtDataVisualization/q3dtheme.h> |
37 | #include <qmath.h> |
38 | #include <QComboBox> |
39 | |
40 | using namespace QtDataVisualization; |
41 | |
42 | const int numberOfCols = 8; |
43 | const int numberOfRows = 8; |
44 | const float limit = 8.0f; |
45 | #define HEDGEHOG |
46 | |
47 | ScatterDataModifier::ScatterDataModifier(Q3DScatter *scatter) |
48 | : m_graph(scatter), |
49 | m_fontSize(40.0f), |
50 | m_style(QAbstract3DSeries::MeshUserDefined), |
51 | m_smooth(true) |
52 | { |
53 | m_graph->activeTheme()->setType(Q3DTheme::ThemeEbony); |
54 | QFont font = m_graph->activeTheme()->font(); |
55 | font.setPointSize(m_fontSize); |
56 | m_graph->activeTheme()->setFont(font); |
57 | m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualitySoftLow); |
58 | m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetFront); |
59 | |
60 | m_graph->setAxisX(new QValue3DAxis); |
61 | m_graph->setAxisY(new QValue3DAxis); |
62 | m_graph->setAxisZ(new QValue3DAxis); |
63 | |
64 | QScatterDataProxy *proxy = new QScatterDataProxy; |
65 | QScatter3DSeries *series = new QScatter3DSeries(proxy); |
66 | series->setItemLabelFormat("@xTitle: @xLabel @yTitle: @yLabel @zTitle: @zLabel" ); |
67 | m_graph->addSeries(series); |
68 | |
69 | QObject::connect(sender: &m_rotationTimer, signal: &QTimer::timeout, receiver: this, |
70 | slot: &ScatterDataModifier::triggerRotation); |
71 | |
72 | addData(); |
73 | } |
74 | |
75 | ScatterDataModifier::~ScatterDataModifier() |
76 | { |
77 | delete m_graph; |
78 | } |
79 | |
80 | void ScatterDataModifier::addData() |
81 | { |
82 | // Configure the axes according to the data |
83 | m_graph->axisX()->setTitle("X" ); |
84 | m_graph->axisY()->setTitle("Y" ); |
85 | m_graph->axisZ()->setTitle("Z" ); |
86 | m_graph->axisX()->setRange(min: -limit, max: limit); |
87 | m_graph->axisY()->setRange(min: -1.0f, max: 1.0f); |
88 | m_graph->axisZ()->setRange(min: -limit, max: limit); |
89 | |
90 | QScatterDataArray *dataArray = new QScatterDataArray; |
91 | dataArray->resize(asize: numberOfCols * numberOfRows); |
92 | QScatterDataItem *ptrToDataArray = &dataArray->first(); |
93 | |
94 | float angleStep = 360.0f / float(numberOfCols); |
95 | float latAngleStep = 100.0f / float(numberOfRows); |
96 | |
97 | for (float i = 0; i < numberOfRows; i++) { |
98 | float latAngle = float(i) * latAngleStep + 40.0f; |
99 | float radius = qSin(v: qDegreesToRadians(degrees: latAngle)) * limit; |
100 | float y = qCos(v: qDegreesToRadians(degrees: latAngle)) * 1.0f; |
101 | #ifdef HEDGEHOG |
102 | float angleZ = qRadiansToDegrees(radians: qAtan(v: (y * limit / 2.0f) / radius)); |
103 | QQuaternion rotationZ = QQuaternion::fromAxisAndAngle(axis: QVector3D(0.0f, 0.0f, 1.0f), angle: angleZ - 90.0f); |
104 | #endif |
105 | for (float j = 0; j < numberOfCols; j++) { |
106 | float angle = float(j) * angleStep; |
107 | float x = qCos(v: qDegreesToRadians(degrees: angle)) * radius; |
108 | float z = qSin(v: qDegreesToRadians(degrees: angle)) * radius; |
109 | |
110 | float angleY = qRadiansToDegrees(radians: qAtan(v: z / x)); |
111 | if (x < 0) |
112 | angleY = 180.0f + angleY; |
113 | if (x > 0 && z < 0) |
114 | angleY = 360.0f + angleY; |
115 | #ifdef HEDGEHOG |
116 | QQuaternion rotationY = QQuaternion::fromAxisAndAngle(axis: QVector3D(0.0f, 1.0f, 0.0f), angle: angleY); |
117 | QQuaternion rotation = rotationY * rotationZ; |
118 | #else |
119 | QQuaternion rotation = QQuaternion::fromAxisAndAngle(QVector3D(0.0f, 1.0f, 0.0f), angleY) * |
120 | QQuaternion::fromAxisAndAngle(QVector3D(1.0f, 0.0f, 0.0f), -90.0f); |
121 | #endif |
122 | |
123 | ptrToDataArray->setPosition(QVector3D(x, y, z)); |
124 | ptrToDataArray->setRotation(rotation); |
125 | ptrToDataArray++; |
126 | } |
127 | } |
128 | |
129 | m_graph->seriesList().at(i: 0)->dataProxy()->resetArray(newArray: dataArray); |
130 | } |
131 | |
132 | void ScatterDataModifier::enableOptimization(int enabled) |
133 | { |
134 | if (enabled) |
135 | m_graph->setOptimizationHints(QAbstract3DGraph::OptimizationStatic); |
136 | else |
137 | m_graph->setOptimizationHints(QAbstract3DGraph::OptimizationDefault); |
138 | } |
139 | |
140 | void ScatterDataModifier::changeStyle(int style) |
141 | { |
142 | QComboBox *comboBox = qobject_cast<QComboBox *>(object: sender()); |
143 | if (comboBox) { |
144 | m_style = QAbstract3DSeries::Mesh(comboBox->itemData(index: style).toInt()); |
145 | if (m_graph->seriesList().size()) |
146 | m_graph->seriesList().at(i: 0)->setMesh(m_style); |
147 | } |
148 | } |
149 | |
150 | void ScatterDataModifier::changeTheme(int theme) |
151 | { |
152 | Q3DTheme *currentTheme = m_graph->activeTheme(); |
153 | currentTheme->setType(Q3DTheme::Theme(theme)); |
154 | emit backgroundEnabledChanged(enabled: currentTheme->isBackgroundEnabled()); |
155 | emit gridEnabledChanged(enabled: currentTheme->isGridEnabled()); |
156 | emit fontChanged(font: currentTheme->font()); |
157 | } |
158 | |
159 | void ScatterDataModifier::changePresetCamera() |
160 | { |
161 | static int preset = Q3DCamera::CameraPresetFrontLow; |
162 | |
163 | m_graph->scene()->activeCamera()->setCameraPreset((Q3DCamera::CameraPreset)preset); |
164 | |
165 | if (++preset > Q3DCamera::CameraPresetDirectlyBelow) |
166 | preset = Q3DCamera::CameraPresetFrontLow; |
167 | } |
168 | |
169 | void ScatterDataModifier::changeLabelStyle() |
170 | { |
171 | m_graph->activeTheme()->setLabelBackgroundEnabled(!m_graph->activeTheme()->isLabelBackgroundEnabled()); |
172 | } |
173 | |
174 | void ScatterDataModifier::changeFont(const QFont &font) |
175 | { |
176 | QFont newFont = font; |
177 | newFont.setPointSizeF(m_fontSize); |
178 | m_graph->activeTheme()->setFont(newFont); |
179 | } |
180 | |
181 | void ScatterDataModifier::shadowQualityUpdatedByVisual(QAbstract3DGraph::ShadowQuality sq) |
182 | { |
183 | int quality = int(sq); |
184 | emit shadowQualityChanged(quality); // connected to a checkbox in main.cpp |
185 | } |
186 | |
187 | void ScatterDataModifier::triggerRotation() |
188 | { |
189 | if (m_graph->seriesList().size()) { |
190 | int selectedIndex = m_graph->seriesList().at(i: 0)->selectedItem(); |
191 | if (selectedIndex != QScatter3DSeries::invalidSelectionIndex()) { |
192 | static float itemAngle = 0.0f; |
193 | QScatterDataItem item(*(m_graph->seriesList().at(i: 0)->dataProxy()->itemAt(index: selectedIndex))); |
194 | QQuaternion itemRotation = QQuaternion::fromAxisAndAngle(x: 0.0f, y: 0.0f, z: 1.0f, angle: itemAngle++); |
195 | item.setRotation(itemRotation); |
196 | m_graph->seriesList().at(i: 0)->dataProxy()->setItem(index: selectedIndex, item); |
197 | } else { |
198 | static float seriesAngle = 0.0f; |
199 | QQuaternion rotation = QQuaternion::fromAxisAndAngle(x: 1.0f, y: 1.0f, z: 1.0f, angle: seriesAngle++); |
200 | m_graph->seriesList().at(i: 0)->setMeshRotation(rotation); |
201 | } |
202 | } |
203 | } |
204 | |
205 | void ScatterDataModifier::changeShadowQuality(int quality) |
206 | { |
207 | QAbstract3DGraph::ShadowQuality sq = QAbstract3DGraph::ShadowQuality(quality); |
208 | m_graph->setShadowQuality(sq); |
209 | } |
210 | |
211 | void ScatterDataModifier::setBackgroundEnabled(int enabled) |
212 | { |
213 | m_graph->activeTheme()->setBackgroundEnabled((bool)enabled); |
214 | } |
215 | |
216 | void ScatterDataModifier::setGridEnabled(int enabled) |
217 | { |
218 | m_graph->activeTheme()->setGridEnabled((bool)enabled); |
219 | } |
220 | |
221 | void ScatterDataModifier::toggleRotation() |
222 | { |
223 | if (m_rotationTimer.isActive()) |
224 | m_rotationTimer.stop(); |
225 | else |
226 | m_rotationTimer.start(msec: 20); |
227 | } |
228 | |