开通博客赚积分
发布资源赚积分
分类

源码开发语言/平台
当前位置：首页 > 源码/资料 > 图形图像 > 分形几何 > 查看源码
fractus3_04.cpp
资源名称：fenxin.rar　[点击查看]
上传用户：hzcygd
上传日期：2022-04-30
资源大小：109k
文件大小：3k
源码类别：

分形几何

开发平台：

Visual C++

fractus3_04.cpp：源码内容
  1. //---------------------------------------------------------------------------
  3. #include <vcl.h>
  4. #pragma hdrstop
  6. #include "fractus3_04.h"
  7. //---------------------------------------------------------------------------
  8. #pragma package(smart_init)
  9. #pragma resource "*.dfm"
  10. TForm1 *Form1;
  11. #include "glib.h"
  12. int n_rot;
  13. int N=4;
  14. double ang,scale;
  15. double r1=180.0;
  16. double delta=0.0001;TRect rect;
  17. int colors[16]={0x00000000,0x00FF0000,0x0000FF00,0x00FF8C00,
  18.                 0x000000FF,0x00FF00FF,0x0000FFFF,0x00D7D7D7,
  19.                 0x009BFFFF,0x009BFFFF,0x00A0FF00,0x00FFFF00,
  20.                 0x006E6EFF,0x00FF9BFF,0x009BFFFF,0x00FFFFFF};
  21. //---------------------------------------------------------------------------
  22. __fastcall TForm1::TForm1(TComponent* Owner)
  23.         : TForm(Owner)
  24. {
  25. }
  26. //---------------------------------------------------------------------------
  27. //曼陀罗式递归图形
  28. void __fastcall recurs(double r,int n)
  29. {
  30.   int i;
  31.   if(n<=N)
  32.    {Form1->Image1->Canvas->Pen->Color=colors[n];
  33.     Form1->Image1->Canvas->Brush->Color=colors[n];
  34.     Form1->Image1->Canvas->Ellipse(LPX-r,LPY-r,LPX+r,LPY+r);
  35.     recurs(r*(1-2*scale),n+1);
  36.     for(i=0;i<n_rot;i++)
  37.      {turn(i*ang);
  38.       warp(r*(1-scale));
  39.       recurs(r*scale,n+1);
  40.       turn(180.0);
  41.       warp(r*(1-scale));
  42.       turn(180-i*ang);
  43.      }
  44.    }
  45.   Form1->Image1->Canvas->Pen->Color=colors[n-1];
  46. }
  49. void __fastcall TForm1::FormCreate(TObject *Sender)
  50. {
  51.   Image1->Height=0;Image1->Top=0;
  52.   Image1->Width=Screen->Width;Image1->Height=Screen->Height;
  53.   rect=Rect(0,0,Image1->Width,Image1->Height);//清屏
  54.   Image1->Canvas->CopyMode=cmBlackness;
  55.   Image1->Canvas->CopyRect(rect,Image1->Canvas,rect);
  56. }
  57. //---------------------------------------------------------------------------
  59. void __fastcall TForm1::N1Click(TObject *Sender)
  60. {
  61.   Image1->Canvas->CopyRect(rect,Image1->Canvas,rect);
  62.   ang=360.0/n_rot;
  63.   if(n_rot!=4)
  64.     scale=sin(PI/n_rot)/(1+sin(PI/n_rot));
  65.   setlp(320.0,200.0);
  66.   setangle(90.0);
  67.   recurs(r1,1);
  68. }
  69. //---------------------------------------------------------------------------
  71. void __fastcall TForm1::N2Click(TObject *Sender)
  72. {
  73.   if(SavePictureDialog1->Execute())
  74.     Image1->Picture->SaveToFile(SavePictureDialog1->FileName);
  75. }
  76. //---------------------------------------------------------------------------
  78. void __fastcall TForm1::N3Click(TObject *Sender)
  79. {
  80.   Close();        
  81. }
  82. //---------------------------------------------------------------------------
  84. void __fastcall TForm1::N4_1Click(TObject *Sender)
  85. {
  86.   n_rot=6;
  87. }
  88. //---------------------------------------------------------------------------
  90. void __fastcall TForm1::N4_2Click(TObject *Sender)
  91. {
  92.   n_rot=8;
  93. }
  94. //---------------------------------------------------------------------------
  96. void __fastcall TForm1::N4_3Click(TObject *Sender)
  97. {
  98.   n_rot=4;scale=1.0/3;
  99. }
  100. //---------------------------------------------------------------------------