Fix sizeBy pointSize calculation

Fixes: QTBUG-112917
Change-Id: Ib2e4f9ae434c863626affcbdfb1ba5c820470eeb
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
(cherry picked from commit d2275fa17016bf61eab5a85f01f70f5a718e218d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/charts/xychart/qxyseries.cpp b/src/charts/xychart/qxyseries.cpp
index e64e42dc..cebe08e6 100644
--- a/src/charts/xychart/qxyseries.cpp
+++ b/src/charts/xychart/qxyseries.cpp
@@ -938,13 +938,14 @@ void QXYSeries::sizeBy(const QList<qreal> &sourceData, const qreal minSize, cons
     }
 
     const qreal range = max - min;
+    const qreal sizeRange = maxSize - minSize;
 
     for (int i = 0; i < sourceData.size() && i < d->m_points.size(); ++i) {
         qreal pointSize = minSize;
         if (range != 0) {
             const qreal startValue = sourceData.at(i) - min;
             const qreal percentage = startValue / range;
-            pointSize = qMax(minSize, percentage * maxSize);
+            pointSize = minSize + (percentage * sizeRange);
         }
         setPointConfiguration(i, QXYSeries::PointConfiguration::Size, pointSize);
     }