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
20#include <QtGui/qquaternion.h>
21
22QT_BEGIN_NAMESPACE
23
24struct DataItemHolder
25{
26 QVector3D position;
27 QQuaternion rotation;
28 QVector3D scale;
29 bool hide = false;
30};
31
32class Q_GRAPHS_EXPORT ScatterInstancing : public QQuick3DInstancing
33{
34 Q_OBJECT
35public:
36 ScatterInstancing();
37
38 const QList<DataItemHolder> &dataArray() const;
39 void setDataArray(const QList<DataItemHolder> &newDataArray);
40 void hideDataItem(qsizetype index);
41 void unhidePreviousDataItem();
42 void resetVisibilty();
43
44 const QList<float> &customData() const;
45 void setCustomData(const QList<float> &newCustomData);
46
47 void markDataDirty();
48 bool rangeGradient() const;
49 void setRangeGradient(bool newRangeGradient);
50
51 void setTransparency(bool transparency);
52
53 bool isDirty() const { return m_dirty; }
54
55 // QQuick3DInstancing interface
56
57protected:
58 QByteArray getInstanceBuffer(int *instanceCount) override;
59
60private:
61 QByteArray m_instanceData;
62 QList<DataItemHolder> m_dataArray;
63 QList<float> m_customData;
64 int m_instanceCount = 0;
65 bool m_dirty = true;
66 bool m_rangeGradient = false;
67 qsizetype m_previousHideIndex = -1;
68};
69
70QT_END_NAMESPACE
71
72#endif // SCATTERINSTANCING_H
73

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