Limit volume to axis ranges

The volume object that would go partially outside axis ranges
is scale and repositioned so that it only renders the portion
that is inside the axis ranges.

Change-Id: I792494e437998ba6276f58fab645767276c1476d
Reviewed-by: Mika Salmela <mika.salmela@digia.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/src/datavisualization/data/customrenderitem_p.h b/src/datavisualization/data/customrenderitem_p.h
index 8ea8e894..84fc898a 100644
--- a/src/datavisualization/data/customrenderitem_p.h
+++ b/src/datavisualization/data/customrenderitem_p.h
@@ -55,6 +55,8 @@ public:
     inline QVector3D origScaling() const { return m_origScaling; }
     inline void setPosition(const QVector3D &position) { m_position = position; }
     inline QVector3D position() const { return m_position; }
+    inline void setOrigPosition(const QVector3D &position) { m_origPosition = position; }
+    inline QVector3D origPosition() const { return m_origPosition; }
     inline void setPositionAbsolute(bool absolute) { m_positionAbsolute = absolute; }
     inline bool isPositionAbsolute() const { return m_positionAbsolute; }
     inline void setScalingAbsolute(bool absolute) { m_scalingAbsolute = absolute; }
@@ -104,6 +106,25 @@ public:
     inline bool preserveOpacity() const { return m_preserveOpacity; }
     inline void setUseHighDefShader(bool enable) { m_useHighDefShader = enable; }
     inline bool useHighDefShader() const {return m_useHighDefShader; }
+    inline void setMinBounds(const QVector3D &bounds) {
+        m_minBounds = bounds;
+        m_minBoundsNormal = m_minBounds;
+        m_minBoundsNormal.setY(-m_minBoundsNormal.y());
+        m_minBoundsNormal.setZ(-m_minBoundsNormal.z());
+        m_minBoundsNormal = 0.5f * (m_minBoundsNormal + oneVector);
+
+    }
+    inline QVector3D minBounds() const { return m_minBounds; }
+    inline void setMaxBounds(const QVector3D &bounds) {
+        m_maxBounds = bounds;
+        m_maxBoundsNormal = m_maxBounds;
+        m_maxBoundsNormal.setY(-m_maxBoundsNormal.y());
+        m_maxBoundsNormal.setZ(-m_maxBoundsNormal.z());
+        m_maxBoundsNormal = 0.5f * (m_maxBoundsNormal + oneVector);
+    }
+    inline QVector3D maxBounds() const { return m_maxBounds; }
+    inline QVector3D minBoundsNormal() const { return m_minBoundsNormal; }
+    inline QVector3D maxBoundsNormal() const { return m_maxBoundsNormal; }
 
 private:
     Q_DISABLE_COPY(CustomRenderItem)
@@ -112,6 +133,7 @@ private:
     QVector3D m_scaling;
     QVector3D m_origScaling;
     QVector3D m_position;
+    QVector3D m_origPosition;
     bool m_positionAbsolute;
     bool m_scalingAbsolute;
     ObjectHelper *m_object; // shared reference
@@ -138,6 +160,10 @@ private:
     float m_alphaMultiplier;
     bool m_preserveOpacity;
     bool m_useHighDefShader;
+    QVector3D m_minBounds;
+    QVector3D m_maxBounds;
+    QVector3D m_minBoundsNormal;
+    QVector3D m_maxBoundsNormal;
 };
 typedef QHash<QCustom3DItem *, CustomRenderItem *> CustomRenderItemArray;