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175 lines
5.2 KiB
175 lines
5.2 KiB
/***************************************************************************
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qsfigure.h
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-------------------
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begin : 01-January-2000
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copyright : (C) 2000 by Kamil Dobkowski
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email : kamildobk@poczta.onet.pl
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QSFIGURE_H
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#define QSFIGURE_H
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include"qsaxes.h"
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#include"qsplot.h"
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#include<vector.h>
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#include<math.h>
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/**
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* \brief Dataset : 3D figure
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*
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* Dataset which draws any set of 3d polygons. Data format is described in QSFigure::Channels .
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* See also : QSAxes::plotAdd()
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*/
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class QSFigure : public QSPlot3D
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{
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Q_OBJECT
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Q_PROPERTY( int vertexCompareAccuracy READ vertexCompareAccuracy WRITE setVertexCompareAccuracy )
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public:
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/**
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* Descriptive names of data channels. See QSData::setMatrix().
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* VXCoord, VYCoord, VZCoord, VVCoord ( V is optional ) must be matrices with the same size.
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* VXCoord contains x coordinates, VYCord contains y coordinates, and VZCoord contains z coordinates.
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* The same row in all matrices describes one polygon. The same column in this row descripes a one vertex.
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* So there is rows polygons and all polygons have cols vertices. If VTableI is not empty and VXCoords,
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* VYCoords, VZCoords contain a single column other format is used. VTableI contains indexes
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* to the row in Coords matrices. One index defines a one data point. One row in VTable in describes one polygon.
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* There is rows(VTableI) polygons, which have cols(VTableI) vertices.
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*/
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enum Channels { VXCoord = 0,
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VYCoord = 1,
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VZCoord = 2,
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VVCoord = 3,
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VTableI = 4 };
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/**
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* Constructor.
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*/
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QSFigure( QSAxes* parent, const char * name=0 );
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/**
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* Destructor.
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*/
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virtual ~QSFigure();
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/**
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* Accuracy is used to detect if two vertices are in fact the same vertex,
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* so two polygons are neighbours. Coordinates of vertices are mapped to
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* the range <-1,1> and rounded to 'accuracy' places after the point before
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* comparing. 'accuracy' must be larger than 0.
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* Valid only if the gr. driver uses normals to vertices ( OpenGL ).
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*/
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void setVertexCompareAccuracy( int accuracy );
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/**
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* Returns the vertex compare accuracy.
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*/
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int vertexCompareAccuracy() const { return m_accuracy; }
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virtual QString posInfo( QSPt2f& pos );
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virtual QSPt2f legendItemSize( QSDrv *drv );
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virtual void drawLegendItem( const QSPt2f& pos, QSDrv *drv );
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virtual void loadStateFromStream( QDataStream& stream, QSObjectFactory *factory );
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virtual void saveStateToStream( QDataStream& stream, QSObjectFactory *factory );
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virtual ColumnType columnType( int channel, int column ) const;
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virtual QString channelVariable( int channel ) const;
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protected:
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virtual void dataChanged( int channel = -1 );
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virtual void allocRuntimeData();
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virtual void freeRuntimeData();
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virtual bool getAxisRange( QSAxis *axis, double& min, double& max );
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virtual bool start();
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virtual bool step();
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virtual void end();
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private:
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struct figure_runtime_data;
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struct figure_runtime_data *d;
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int m_accuracy; // vertex comparing accuracy.
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bool m_extremes_valid; // are extremes valid
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bool m_minmax_v_valid;
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QSPt3f m_dmin; // minimum value in data
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QSPt3f m_dmax; // maximum value in data
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double m_vmin;
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double m_vmax;
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void init_data();
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void init_draw();
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void init_colors();
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void init_draw_figure();
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void alloc_buffers();
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void free_buffers();
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void order_vertices_step();
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void init_find_neighbours();
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void find_neighbours_step();
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void draw_figure_step();
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bool is_equal( int bindex1, int bindex2 );
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void get_facet( int nr, QSPt3f *vert, double *values=NULL );
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void get_facet_colors( int findex, QSGFill *fbuff );
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void get_facet_normals( int findex, QSPt3f *normals );
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void get_vertex_normal( int bindex1, int bindex2, int inc, QSPt3f *normal );
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void draw_point_marks( int number, const QSPt3f* wbuff );
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void map_facet_to_world( const QSPt3f *vbuff, QSPt3f *wbuff );
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};
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#endif
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