1 files changed, 91 insertions, 0 deletions
diff --git a/src/charts/domain/polardomain.cpp b/src/charts/domain/polardomain.cpp
new file mode 100644
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+++ b/src/charts/domain/polardomain.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Enterprise Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "polardomain_p.h"
+#include "qabstractaxis_p.h"
+#include <qmath.h>
+
+QT_CHARTS_BEGIN_NAMESPACE
+
+PolarDomain::PolarDomain(QObject *parent)
+    : AbstractDomain(parent)
+{
+}
+
+PolarDomain::~PolarDomain()
+{
+}
+
+void PolarDomain::setSize(const QSizeF &size)
+{
+    Q_ASSERT(size.width() == size.height());
+    m_radius = size.height() / 2.0;
+    m_center = QPointF(m_radius, m_radius);
+    AbstractDomain::setSize(size);
+}
+
+QPointF PolarDomain::calculateGeometryPoint(const QPointF &point, bool &ok) const
+{
+    qreal r = 0.0;
+    qreal a = toAngularCoordinate(point.x(), ok);
+    if (ok)
+        r = toRadialCoordinate(point.y(), ok);
+    if (ok) {
+        return m_center + polarCoordinateToPoint(a, r);
+    } else {
+        qWarning() << "Logarithm of negative value is undefined. Empty layout returned.";
+        return QPointF();
+    }
+}
+
+QVector<QPointF> PolarDomain::calculateGeometryPoints(const QList<QPointF> &vector) const
+{
+    QVector<QPointF> result;
+    result.resize(vector.count());
+    bool ok;
+    qreal r = 0.0;
+    qreal a = 0.0;
+
+    for (int i = 0; i < vector.count(); ++i) {
+        a = toAngularCoordinate(vector[i].x(), ok);
+        if (ok)
+            r = toRadialCoordinate(vector[i].y(), ok);
+        if (ok) {
+            result[i] = m_center + polarCoordinateToPoint(a, r);
+        } else {
+            qWarning() << "Logarithm of negative value is undefined. Empty layout returned.";
+            return QVector<QPointF>();
+        }
+    }
+
+    return result;
+}
+
+QPointF PolarDomain::polarCoordinateToPoint(qreal angularCoordinate, qreal radialCoordinate) const
+{
+    qreal dx = qSin(angularCoordinate * (M_PI / 180)) * radialCoordinate;
+    qreal dy = qCos(angularCoordinate * (M_PI / 180)) * radialCoordinate;
+
+    return QPointF(dx, -dy);
+}
+
+#include "moc_polardomain_p.cpp"
+
+QT_CHARTS_END_NAMESPACE