1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the Qt Data Visualization module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:GPL$ |
9 | ** Commercial License Usage |
10 | ** Licensees holding valid commercial Qt licenses may use this file in |
11 | ** accordance with the commercial license agreement provided with the |
12 | ** Software or, alternatively, in accordance with the terms contained in |
13 | ** a written agreement between you and The Qt Company. For licensing terms |
14 | ** and conditions see https://www.qt.io/terms-conditions. For further |
15 | ** information use the contact form at https://www.qt.io/contact-us. |
16 | ** |
17 | ** GNU General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU |
19 | ** General Public License version 3 or (at your option) any later version |
20 | ** approved by the KDE Free Qt Foundation. The licenses are as published by |
21 | ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
22 | ** included in the packaging of this file. Please review the following |
23 | ** information to ensure the GNU General Public License requirements will |
24 | ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
25 | ** |
26 | ** $QT_END_LICENSE$ |
27 | ** |
28 | ****************************************************************************/ |
29 | |
30 | // |
31 | // W A R N I N G |
32 | // ------------- |
33 | // |
34 | // This file is not part of the QtDataVisualization API. It exists purely as an |
35 | // implementation detail. This header file may change from version to |
36 | // version without notice, or even be removed. |
37 | // |
38 | // We mean it. |
39 | |
40 | #ifndef SURFACEOBJECT_P_H |
41 | #define SURFACEOBJECT_P_H |
42 | |
43 | #include "datavisualizationglobal_p.h" |
44 | #include "abstractobjecthelper_p.h" |
45 | #include "qsurfacedataproxy.h" |
46 | |
47 | #include <QtCore/QRect> |
48 | |
49 | QT_BEGIN_NAMESPACE_DATAVISUALIZATION |
50 | |
51 | class Surface3DRenderer; |
52 | class AxisRenderCache; |
53 | |
54 | class SurfaceObject : public AbstractObjectHelper |
55 | { |
56 | public: |
57 | enum SurfaceType { |
58 | SurfaceSmooth, |
59 | SurfaceFlat, |
60 | Undefined |
61 | }; |
62 | |
63 | enum DataDimension { |
64 | BothAscending = 0, |
65 | XDescending = 1, |
66 | ZDescending = 2, |
67 | BothDescending = XDescending | ZDescending |
68 | }; |
69 | Q_DECLARE_FLAGS(DataDimensions, DataDimension) |
70 | |
71 | public: |
72 | SurfaceObject(Surface3DRenderer *renderer); |
73 | virtual ~SurfaceObject(); |
74 | |
75 | void setUpData(const QSurfaceDataArray &dataArray, const QRect &space, |
76 | bool changeGeometry, bool polar, bool flipXZ = false); |
77 | void setUpSmoothData(const QSurfaceDataArray &dataArray, const QRect &space, |
78 | bool changeGeometry, bool polar, bool flipXZ = false); |
79 | void smoothUVs(const QSurfaceDataArray &dataArray, const QSurfaceDataArray &modelArray); |
80 | void coarseUVs(const QSurfaceDataArray &dataArray, const QSurfaceDataArray &modelArray); |
81 | void updateCoarseRow(const QSurfaceDataArray &dataArray, int rowIndex, bool polar); |
82 | void updateSmoothRow(const QSurfaceDataArray &dataArray, int startRow, bool polar); |
83 | void updateSmoothItem(const QSurfaceDataArray &dataArray, int row, int column, bool polar); |
84 | void updateCoarseItem(const QSurfaceDataArray &dataArray, int row, int column, bool polar); |
85 | void createSmoothIndices(int x, int y, int endX, int endY); |
86 | void createCoarseSubSection(int x, int y, int columns, int rows); |
87 | void createSmoothGridlineIndices(int x, int y, int endX, int endY); |
88 | void createCoarseGridlineIndices(int x, int y, int endX, int endY); |
89 | void uploadBuffers(); |
90 | GLuint gridElementBuf(); |
91 | GLuint uvBuf(); |
92 | GLuint gridIndexCount(); |
93 | QVector3D vertexAt(int column, int row); |
94 | void clear(); |
95 | float minYValue() const { return m_minY; } |
96 | float maxYValue() const { return m_maxY; } |
97 | inline void activateSurfaceTexture(bool value) { m_returnTextureBuffer = value; } |
98 | |
99 | private: |
100 | void createCoarseIndices(GLint *indices, int &p, int row, int upperRow, int j); |
101 | void createNormals(int &p, int row, int upperRow, int j); |
102 | void createSmoothNormalBodyLine(int &totalIndex, int column); |
103 | void createSmoothNormalUpperLine(int &totalIndex); |
104 | QVector3D createSmoothNormalBodyLineItem(int x, int y); |
105 | QVector3D createSmoothNormalUpperLineItem(int x, int y); |
106 | QVector3D normal(const QVector3D &a, const QVector3D &b, const QVector3D &c); |
107 | void createBuffers(const QVector<QVector3D> &vertices, const QVector<QVector2D> &uvs, |
108 | const QVector<QVector3D> &normals, const GLint *indices); |
109 | void checkDirections(const QSurfaceDataArray &array); |
110 | inline void getNormalizedVertex(const QSurfaceDataItem &data, QVector3D &vertex, bool polar, |
111 | bool flipXZ); |
112 | |
113 | private: |
114 | SurfaceType m_surfaceType = Undefined; |
115 | int m_columns = 0; |
116 | int m_rows = 0; |
117 | GLuint m_gridElementbuffer; |
118 | GLuint m_gridIndexCount = 0; |
119 | QVector<QVector3D> m_vertices; |
120 | QVector<QVector3D> m_normals; |
121 | // Caches are not owned |
122 | AxisRenderCache &m_axisCacheX; |
123 | AxisRenderCache &m_axisCacheY; |
124 | AxisRenderCache &m_axisCacheZ; |
125 | Surface3DRenderer *m_renderer; |
126 | float m_minY; |
127 | float m_maxY; |
128 | GLuint m_uvTextureBuffer; |
129 | bool m_returnTextureBuffer = false; |
130 | SurfaceObject::DataDimensions m_dataDimension; |
131 | SurfaceObject::DataDimensions m_oldDataDimension = DataDimensions(-1); |
132 | }; |
133 | |
134 | QT_END_NAMESPACE_DATAVISUALIZATION |
135 | |
136 | #endif |
137 | |