1// Copyright (C) 2023 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
3
4//
5// W A R N I N G
6// -------------
7//
8// This file is not part of the QtGraphs API. It exists purely as an
9// implementation detail. This header file may change from version to
10// version without notice, or even be removed.
11//
12// We mean it.
13
14#ifndef SCATTERINSTANCING_H
15#define SCATTERINSTANCING_H
16
17#include <QtGraphs/qgraphsglobal.h>
18#include <private/qquick3dinstancing_p.h>
19
20struct DataItemHolder
21{
22 QVector3D position;
23 QQuaternion rotation;
24 QVector3D scale;
25 bool hide = false;
26};
27
28class Q_GRAPHS_EXPORT ScatterInstancing : public QQuick3DInstancing
29{
30 Q_OBJECT
31public:
32 ScatterInstancing();
33
34 const QList<DataItemHolder> &dataArray() const;
35 void setDataArray(const QList<DataItemHolder> &newDataArray);
36 void hideDataItem(qsizetype index);
37 void unhidePreviousDataItem();
38 void resetVisibilty();
39
40 const QList<float> &customData() const;
41 void setCustomData(const QList<float> &newCustomData);
42
43 void markDataDirty();
44 bool rangeGradient() const;
45 void setRangeGradient(bool newRangeGradient);
46
47 void setTransparency(bool transparency);
48
49 bool isDirty() const { return m_dirty; }
50
51 // QQuick3DInstancing interface
52
53protected:
54 QByteArray getInstanceBuffer(int *instanceCount) override;
55
56private:
57 QByteArray m_instanceData;
58 QList<DataItemHolder> m_dataArray;
59 QList<float> m_customData;
60 int m_instanceCount = 0;
61 bool m_dirty = true;
62 bool m_rangeGradient = false;
63 qsizetype m_previousHideIndex = -1;
64};
65
66#endif // SCATTERINSTANCING_H
67

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source code of qtgraphs/src/graphs3d/engine/scatterinstancing_p.h