Added example on how to use 3d bars on qwidget

Initial version, more to be added

Change-Id: I9c947f2e5ac525ab1821fc06e2f02c67da37fe70
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>

1 files changed, 235 insertions, 0 deletions

diff --git a/examples/datavis3d/widget/chart.cpp b/examples/datavis3d/widget/chart.cpp
new file mode 100644
index 00000000..06ad9519
--- /dev/null
+++ b/examples/datavis3d/widget/chart.cpp
@@ -0,0 +1,235 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the documentation of QtDataVis3D module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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 Digia Plc and its Subsidiary(-ies) 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "chart.h"
+
+using namespace QtDataVis3D;
+
+ChartModifier::ChartModifier(Q3DBars *barchart)
+    : m_chart(barchart),
+      m_dataTimer(0),
+      m_columnCount(21),
+      m_rowCount(21)
+{
+    // Set up bar specifications; make the bars as wide as they are deep,
+    // and add a small space between the bars
+    m_chart->setBarSpecs(QPointF(1.0f, 1.0f), QPointF(0.1f, 0.1f), true);
+
+#ifndef USE_STATIC_DATA
+    // Set up sample space; make it as deep as it's wide
+    m_chart->setupSampleSpace(QPoint(m_columnCount, m_rowCount));
+#endif
+
+    // Set bar type
+    m_chart->setBarType(Q3DBars::Pyramids, false);
+
+#ifndef USE_STATIC_DATA
+    // Set selection mode to full
+    m_chart->setSelectionMode(Q3DBars::BarRowAndColumn);
+#else
+    // Set selection mode to zoom row
+    m_chart->setSelectionMode(Q3DBars::ZoomRow);
+    m_chart->setFont(QFont("Times Roman", 20));
+#endif
+
+    m_chart->setTheme(Q3DBars::ThemeSystem);
+    m_chart->setLabelTransparency(Q3DBars::TransparencyFromTheme);
+
+    // Set preset camera position
+    m_chart->setCameraPreset(Q3DBars::PresetFront);
+}
+
+ChartModifier::~ChartModifier()
+{
+    if (m_dataTimer) {
+        m_dataTimer->stop();
+        delete m_dataTimer;
+    }
+    delete m_chart;
+}
+
+void ChartModifier::start()
+{
+#ifndef USE_STATIC_DATA
+    m_dataTimer = new QTimer();
+    m_dataTimer->setTimerType(Qt::CoarseTimer);
+    m_dataTimer->setInterval(100);
+    QObject::connect(m_dataTimer, &QTimer::timeout, this, &ChartDataGenerator::addBars);
+    m_dataTimer->start(100);
+#else
+    addDataSet();
+#endif
+}
+
+void ChartModifier::addDataSet()
+{
+#if 0
+    // Prepare data to be visualized
+    // Use float vector adder
+    QVector< QVector<float> > data;
+    QVector<float> row;
+    // TODO: Keep here for testing
+    for (int j = 0; j < m_rowCount; j++) {
+        for (int i = 0; i < m_columnCount; i++) {
+            //row.prepend(((float)i / (float)m_columnCount) * 100.0f + (float)(rand() % 30));
+            row.append(1.0f);
+        }
+        data.append(row);
+        row.clear();
+    }
+    // Set up sample space based on inserted data
+    m_chart->setupSampleSpace(QPoint(m_columnCount, m_rowCount));
+    // Add data to chart
+    m_chart->addDataSet(data);
+#else
+    // Prepare data to be visualized
+    // Use QDataSet adder
+
+    // Set window title
+    m_chart->setWindowTitle(QStringLiteral("Average temperatures in Oulu, Finland (2008-2012)"));
+
+    // Set up row and column names
+    QVector<QString> months;
+    months << "January" << "February" << "March" << "April" << "May" << "June" << "July" << "August" << "September" << "October" << "November" << "December";
+    QVector<QString> years;
+    years << "2008" << "2009" << "2010" << "2011" << "2012";
+
+    // Set up data
+    float temp[5][12] = {{-4.2f, -4.0f, -4.6f, 1.9f, 7.3f, 12.5f, 15.0f, 12.8f, 7.6f, 5.1f, -0.9f, -1.3f},
+                         {-7.8f, -8.8f, -4.2f, 0.7f, 9.3f, 13.2f, 15.8f, 15.5f, 11.2f, 0.6f, 0.7f, -8.4f},
+                         {-14.4f, -12.1f, -7.0f, 2.3f, 11.0f, 12.6f, 18.8f, 13.8f, 9.4f, 3.9f, -5.6f, -13.0f},
+                         {-9.0f, -15.2f, -3.8f, 2.6f, 8.3f, 15.9f, 18.6f, 14.9f, 11.1f, 5.3f, 1.8f, -0.2f},
+                         {-8.7f, -11.3f, -2.3f, 0.4f, 7.5f, 12.2f, 16.4f, 14.1f, 9.2f, 3.1f, 0.3f, -12.1f}};
+
+    // Create data set
+    QDataSet *dataSet = new QDataSet();
+
+    // Add labels
+    dataSet->setLabels("Year", "Month", "Average temperature (C)", years, months);
+
+    // Create data rows
+    QDataRow *dataRow;
+    for (int year = 0; year < years.size(); year++) {
+        dataRow = new QDataRow(years.at(year));
+        // Create data items
+        for (int month = 0; month < months.size(); month++) {
+            // Add data to rows
+            dataRow->addItem(new QDataItem(temp[year][month], "C"));
+        }
+        // Add row to set
+        dataSet->addRow(dataRow);
+        // Get next pointer
+        dataRow++;
+    }
+
+    // Set up sample space based on prepared data
+    m_chart->setupSampleSpace(QPoint(months.size(), years.size()));
+
+    // Add data to chart
+    m_chart->addDataSet(dataSet);
+#endif
+}
+
+void ChartModifier::addBars()
+{
+    QVector<float> data;
+    for (int i = 0; i < m_columnCount; i++)
+        data.append(((float)i / (float)m_columnCount) / 2.0f + (float)(rand() % 30) / 100.0f);
+    m_chart->addDataRow(data);
+}
+
+void ChartModifier::changeStyle()
+{
+    static int model = 0;
+    switch (model) {
+    case 0:
+        m_chart->setBarType(Q3DBars::Cylinders, false);
+        break;
+    case 1:
+        m_chart->setBarType(Q3DBars::Cylinders, true);
+        break;
+    case 2:
+        m_chart->setBarType(Q3DBars::Cones, false);
+        break;
+    case 3:
+        m_chart->setBarType(Q3DBars::Cones, true);
+        break;
+    case 4:
+        m_chart->setBarType(Q3DBars::Bars, false);
+        break;
+    case 5:
+        m_chart->setBarType(Q3DBars::Bars, true);
+        break;
+    case 6:
+        m_chart->setBarType(Q3DBars::Pyramids, false);
+        break;
+    case 7:
+        m_chart->setBarType(Q3DBars::Pyramids, true);
+        break;
+    }
+    model++;
+    if (model > 7)
+        model = 0;
+}
+
+void ChartModifier::changePresetCamera()
+{
+    static int preset = 0;
+
+    m_chart->setCameraPreset((Q3DBars::CameraPreset)preset);
+
+    if (++preset > (int)Q3DBars::PresetDirectlyAboveCCW45)
+        preset = 0;
+}
+
+void ChartModifier::changeTheme()
+{
+    static int theme = 0;
+
+    m_chart->setTheme((Q3DBars::ColorTheme)theme);
+
+    if (++theme > (int)Q3DBars::ThemeLight)
+        theme = 0;
+}
+
+void ChartModifier::rotate(int rotation)
+{
+    m_chart->setCameraPosition(rotation, 0.0f);
+}