www.pudn.com > etree_src.zip > Branch.h

//**************************************************************************** 
//  Branch.h: interface for the CBranch class. 
// 
//  Copyright (c) Boris J. Wang (e_boris2002@hotmail.com) 2002 - 2003 
//  From Institute of Computing Technology, Chinese Academy of Sciences 
//                                                Beijing 100871, China 
// 
//  THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF  
//  ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO  
//  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A  
//  PARTICULAR PURPOSE. 
//**************************************************************************** 
 
#if !defined(AFX_BRANCH_H__B2340C7E_7701_4EBC_95B1_5E9A7BADDDD6__INCLUDED_) 
#define AFX_BRANCH_H__B2340C7E_7701_4EBC_95B1_5E9A7BADDDD6__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
class CTree; 
 
#include  
#include "ChainList.h" 
#include "GL_helper.h" 
 
#define SEG_END_LEAF_COUNT 2 
 
#include "Leaf.h" 
 
#define TriZoom(x) ((x)*0.8660254f) 
 
class CSegment; 
 
class CBranch 
{ 
public: 
	CBranch(); 
	virtual ~CBranch(); 
 
	void Render(); 
	bool Rebuild(int); 
	void FreeAll(); 
 
	friend class CTree; 
	friend class CSegment; 
 
protected: 
	CSegment *	Segments; 
	CSegment *	Base; 
 
	GLfloat	 LeafScale; 
}; 
 
class CSegment:public CChainNode 
{ 
public: 
	CSegment(); 
	~CSegment(); 
	void BuildChildren(int Count,GLfloat LeafSize); 
	void Render(CSegment & Father); 
 
	friend class CTree; 
	friend class CBranch; 
 
	inline void SetTwist(float ex)   //in Degree 
		{double tmp=(double)Deg2Rad(Twist = ex); SinTwist = sin(tmp); CosTwist = cos(tmp);} 
	inline void SetExpand(float ex)  //in Degree 
		{double tmp=(double)Deg2Rad(Expand = ex); SinExpand = sin(tmp); CosExpand = cos(tmp);} 
	inline void SetLength(float Len){/*ASSERT(Len>0.000001f);*/ Length = Len; } 
	inline void SetRadius(float rd){/*ASSERT(rd>0.000001f);*/ TriRadius = TriZoom(Radius = rd); HalfRadius = Radius*0.5f; } 
 
	///////////// 
	//Param 
	static float SegExpand,SegScaleLen,SegScaleRad,SegLeafSize,LeafExpand; 
	static float SegTwistInc,SegSideExpand,SegSideScaleDepth,SegSideScale; 
	static CglMaterial BarkMTR; 
 
protected: 
	/// Twist 
	double SinTwist,CosTwist,Twist; 
	/// Expand 
	double SinExpand,CosExpand,Expand; 
	/// Length 
	GLfloat Length; 
	/// Radius 
	GLfloat Radius; 
	GLfloat HalfRadius; //HalfRadius = 0.5*Radius 
	GLfloat TriRadius;  //TriRadius = Radius*((3)^(0.5)/2) = TriZoom(...) 
 
	static CglTexture Tex; 
 
	///////////////////////////////////////// 
	//SideBranch 
	CBranch * SideBranch; 
	CLeaf * Leaves; 
 
	////////////////////////// 
	void DefineOneLine(GLfloat x,GLfloat z,GLfloat fx,GLfloat fz,GLfloat Tex); 
}; 
 
 
#endif // !defined(AFX_BRANCH_H__B2340C7E_7701_4EBC_95B1_5E9A7BADDDD6__INCLUDED_)