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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd
** All rights reserved.
** For any questions to The Qt Company, please use contact form at http://qt.io
**
** This file is part of the Qt Data Visualization module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
** agreement between you and The Qt Company.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the QtDataVisualization API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef SURFACEOBJECT_P_H
#define SURFACEOBJECT_P_H
#include "datavisualizationglobal_p.h"
#include "abstractobjecthelper_p.h"
#include "qsurfacedataproxy.h"
#include <QtCore/QRect>
QT_BEGIN_NAMESPACE_DATAVISUALIZATION
class Surface3DRenderer;
class AxisRenderCache;
class SurfaceObject : public AbstractObjectHelper
{
public:
enum SurfaceType {
SurfaceSmooth,
SurfaceFlat,
Undefined
};
enum DataDimension {
BothAscending = 0,
XDescending = 1,
ZDescending = 2,
BothDescending = XDescending | ZDescending
};
Q_DECLARE_FLAGS(DataDimensions, DataDimension)
public:
SurfaceObject(Surface3DRenderer *renderer);
virtual ~SurfaceObject();
void setUpData(const QSurfaceDataArray &dataArray, const QRect &space,
bool changeGeometry, bool polar, bool flipXZ = false);
void setUpSmoothData(const QSurfaceDataArray &dataArray, const QRect &space,
bool changeGeometry, bool polar, bool flipXZ = false);
void smoothUVs(const QSurfaceDataArray &dataArray, const QSurfaceDataArray &modelArray);
void coarseUVs(const QSurfaceDataArray &dataArray, const QSurfaceDataArray &modelArray);
void updateCoarseRow(const QSurfaceDataArray &dataArray, int rowIndex, bool polar);
void updateSmoothRow(const QSurfaceDataArray &dataArray, int startRow, bool polar);
void updateSmoothItem(const QSurfaceDataArray &dataArray, int row, int column, bool polar);
void updateCoarseItem(const QSurfaceDataArray &dataArray, int row, int column, bool polar);
void createSmoothIndices(int x, int y, int endX, int endY);
void createCoarseSubSection(int x, int y, int columns, int rows);
void createSmoothGridlineIndices(int x, int y, int endX, int endY);
void createCoarseGridlineIndices(int x, int y, int endX, int endY);
void uploadBuffers();
GLuint gridElementBuf();
GLuint uvBuf();
GLuint gridIndexCount();
QVector3D vertexAt(int column, int row);
void clear();
float minYValue() const { return m_minY; }
float maxYValue() const { return m_maxY; }
inline void activateSurfaceTexture(bool value) { m_returnTextureBuffer = value; }
private:
void createCoarseIndices(GLint *indices, int &p, int row, int upperRow, int j);
void createNormals(int &p, int row, int upperRow, int j);
void createSmoothNormalBodyLine(int &totalIndex, int column);
void createSmoothNormalUpperLine(int &totalIndex);
QVector3D createSmoothNormalBodyLineItem(int x, int y);
QVector3D createSmoothNormalUpperLineItem(int x, int y);
QVector3D normal(const QVector3D &a, const QVector3D &b, const QVector3D &c);
void createBuffers(const QVector<QVector3D> &vertices, const QVector<QVector2D> &uvs,
const QVector<QVector3D> &normals, const GLint *indices);
void checkDirections(const QSurfaceDataArray &array);
inline void getNormalizedVertex(const QSurfaceDataItem &data, QVector3D &vertex, bool polar,
bool flipXZ);
private:
SurfaceType m_surfaceType;
int m_columns;
int m_rows;
GLuint m_gridElementbuffer;
GLuint m_gridIndexCount;
QVector<QVector3D> m_vertices;
QVector<QVector3D> m_normals;
// Caches are not owned
AxisRenderCache &m_axisCacheX;
AxisRenderCache &m_axisCacheY;
AxisRenderCache &m_axisCacheZ;
Surface3DRenderer *m_renderer;
float m_minY;
float m_maxY;
GLuint m_uvTextureBuffer;
bool m_returnTextureBuffer;
SurfaceObject::DataDimensions m_dataDimension;
SurfaceObject::DataDimensions m_oldDataDimension;
};
QT_END_NAMESPACE_DATAVISUALIZATION
#endif
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