source: trunk/gui/vizservers/nanovis/Volume.h @ 416

/*
 * ----------------------------------------------------------------------
 * Volume.h: 3d volume class
 *
 * ======================================================================
 *  AUTHOR:  Wei Qiao <qiaow@purdue.edu>
 *           Purdue Rendering and Perceptualization Lab (PURPL)
 *
 *  Copyright (c) 2004-2006  Purdue Research Foundation
 *
 *  See the file "license.terms" for information on usage and
 *  redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 * ======================================================================
 */

#ifndef _VOLUME_H_
#define _VOLUME_H_

#include <vector>

#include "define.h"
#include "Texture3D.h"
#include "Vector3.h"

using namespace std;

struct CutPlane{
  int orient;   //orientation - 1: xy slice, 2: yz slice, 3: xz slice
  float offset; //normalized offset [0,1] in the volume
  bool enabled;

  CutPlane(int _orient, float _offset):
        orient(_orient),
        offset(_offset),
        enabled(true){}
};


class Volume{
        
private:
        vector <CutPlane> plane; //cut planes

public:
        Vector3 location;

        bool enabled; 

        int width;
        int height;
        int depth;

        float aspect_ratio_width;
        float aspect_ratio_height;
        float aspect_ratio_depth;

        NVISdatatype type;
        NVISinterptype interp_type;
        int n_components;

        Texture3D* tex; //OpenGL texture storing the volume
        NVISid id;   //OpenGL textue identifier (==tex->id)

        Volume(float x, float y, float z, 
                        int width, int height, int depth, 
                        NVISdatatype type, NVISinterptype interp,
                        int n_component, float* data);
        ~Volume();
        
        void enable(); //VolumeRenderer will render an enabled volume and its cutplanes
        void disable();
        void move(Vector3 _loc);
        bool is_enabled();
        Vector3* get_location();

        //methods related to cutplanes
        int add_cutplane(int _orientation, float _location); //add a plane and returns its index
        void enable_cutplane(int index);
        void disable_cutplane(int index);
        void move_cutplane(int index, float _location);
        CutPlane* get_cutplane(int index);
        int get_cutplane_count();       //returns the number of cutplanes in the volume
        bool cutplane_is_enabled(int index);    //check if a cutplane is enabled

};

#endif