Object.h

/********************************************************************/
/* Copyright (c) 2015 DG Technologies Inc. and Yuzi Mizuno          */
/* All rights reserved.                                             */
/********************************************************************/
#ifndef _MGObject_HH_
#define _MGObject_HH_

#include "mg/MGCL.h"
#include "mg/Pvector.h"
#include "mg/drawParam.h"
#include "mg/Plist.h"
#include "mg/Position.h"
#include "mg/isects.h"
#include "mg/AttribedGel.h"

//
//Define MGObject Class.
class MGIfstream;
class MGOfstream;
class MGBox;
class MGVector;
class MGMatrix;
class MGTransf;
class MGObject;
class MGGeometry;
class MGTopology;
class MGPoint;
class MGStraight;
class MGCurve;
class MGFSurface;
class MGSurface;
class MGFace;
class MGShell;
class mgTL2Triangles;

class MG_DLL_DECLR MGObject:public MGAttribedGel{

public:


MGObject();

MGObject(const MGObject& obj2);

virtual ~MGObject();

virtual MGObject& operator=(const MGObject& obj2){return set_object(obj2);};

virtual MGObject& operator+=(const MGVector& v)=0;
virtual MGObject& operator-=(const MGVector& v)=0;
virtual MGObject& operator*=(double scale)=0;
virtual MGObject& operator*=(const MGMatrix& mat)=0;
virtual MGObject& operator*=(const MGTransf& tr)=0;


virtual std::ostream& out(std::ostream&) const;

MGAppearance* appearance(){return m_appearance;};
const MGAppearance* appearance()const{return m_appearance;};

virtual const MGBox& box() const=0;

virtual MGObject* clone() const=0;

virtual void drawWire(
    mgVBO& vbo,
    double span_length, 
    int line_density=1  
)const=0;

virtual void draw3DVertex(mgVBO& vbo)const=0;

virtual void shade(
    mgVBO& vbo,
    const MGDrawParam& para,
    mgVBO::ELEMENT_TARGET target=mgVBO::SHADING
)const{drawWire(vbo,para.span_length_wire());};

MGAppearance* ensure_appearance();

virtual void make_display_list(
    MGCL::VIEWMODE vmode=MGCL::DONTCARE
)const;

bool has_common(const MGObject& obj2) const;

const MGObject* includes_object()const{return this;};
MGObject* includes_object(){return this;};

virtual MGisects intersection(const MGObject& obj2)const=0;
virtual MGisects intersection(const MGPoint& obj2)const{return MGisects();};
virtual MGisects intersection(const MGCurve& obj2)const=0;
virtual MGisects intersection(const MGFSurface& obj2)const=0;
virtual MGisects intersection(const MGSurface& obj2)const=0;
virtual MGisects intersection(const MGFace& obj2)const=0;
virtual MGisects intersection(const MGShell& obj2)const=0;

virtual MGPosition pick_closest(const MGStraight& sl)const{
    return MGPosition();
}

void remove_appearance();

virtual MGObject* object(){return this;};
virtual const MGObject* object()const{return this;};

virtual const MGFSurface* fsurface()const{return (const MGFSurface*)0;};
virtual MGFSurface* fsurface(){return (MGFSurface*)0;};

//set the copy of appr2 to this MGAttribedgel.
void set_appearance(const MGAppearance& appr2);

virtual void transform(const MGVector& v){(*this)+=v;};
virtual void transform(double scale){(*this)*=scale;};
virtual void transform(const MGMatrix& mat){(*this)*=mat;};
virtual void transform(const MGTransf& tr){(*this)*=tr;};

protected:

virtual void ReadMembers(MGIfstream& buf);

virtual void WriteMembers(MGOfstream& buf)const;

MGObject& set_object(const MGObject& gel2);

private:

MGAppearance* m_appearance;

friend class MGIfstream;
friend class MGOfstream;

};

MG_DLL_DECLR MGObject* MGNullObj(long TID);
 // end of MGObjectRelated group
#endif