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  1. //+------------------------------------------------------------------+
  2. //|                                                     DJ_Lines.mq4 |
  3. //|                       Copyright @2005, metaQuotes Software Corp. |
  4. //+------------------------------------------------------------------+
  5. #property copyright "下载更多外汇EA，外汇指标，交易系统，就到【外汇EA之家】"
  6. #property link      "http://www.eazhijia.com"

  8. #property indicator_chart_window
  9. #property indicator_buffers 7
  10. #property indicator_color1 White
  11. #property indicator_color2 Red
  12. #property indicator_color3 Red
  13. #property indicator_color4 Yellow
  14. #property indicator_color5 Yellow
  15. #property indicator_color6 LimeGreen
  16. #property indicator_color7 LimeGreen

  18. extern int show_comment=1;
  19. extern int how_long=1000;

  21. double E2[];
  22. double ff[];
  23. double E4[];
  24. double E5[];
  25. double E6[];
  26. double E7[];
  27. double E8[];
  28. //+------------------------------------------------------------------+
  29. //| Custom indicator initialization function |
  30. //+------------------------------------------------------------------+
  31. int onInit(void)
  32. {
  33. SetIndexBuffer(0, E2);
  34. SetIndexBuffer(1, ff);
  35. SetIndexBuffer(2, E4);
  36. SetIndexBuffer(3, E5);
  37. SetIndexBuffer(4, E6);
  38. SetIndexBuffer(5, E7);
  39. SetIndexBuffer(6, E8);

  41. SetIndexStyle(0, DRAW_LINE,1,2);
  42. SetIndexStyle(1, DRAW_LINE);
  43. SetIndexStyle(2, DRAW_LINE);
  44. SetIndexStyle(3, DRAW_LINE);
  45. SetIndexStyle(4, DRAW_LINE);
  46. SetIndexStyle(5, DRAW_LINE);
  47. SetIndexStyle(6, DRAW_LINE);
  48. Comment("www.eazhijia.com");
  49. return(INIT_SUCCEEDED);
  50. }

  52. //+------------------------------------------------------------------+
  53. //| Custom indicator iteration function                              |
  54. //+------------------------------------------------------------------+
  55. int onCalculate(const int rates_total,
  56.                 const int prev_calculated,
  57.                 const datetime &time[],
  58.                 const double &open[],
  59.                 const double &high[],
  60.                 const double &low[],
  61.                 const double &close[],
  62.                 const long &tick_volume[],
  63.                 const long &volume[],
  64.                 const int &spread[])
  65. {
  66. int cnt=0;
  67. int begin_bar=0;
  68. int prev_day, cur_day;
  69. double day_high=0;
  70. double day_low=0;
  71. double yesterday_high=0;
  72. double yesterday_low=0;
  73. double yesterday_close=0;
  74. double P, S, R, P1, P2, P3, C1, C2, C3;

  76. if (Period() >= PERIOD_D1) {
  77. Comment("WARNING: Invalid timeframe! Valid value < D1.");
  78. return(0);
  79. }

  81. if (how_long == -1) {
  82. begin_bar = Bars;
  83. } else {
  84. begin_bar = how_long;
  85. }

  87. for (cnt = begin_bar; cnt >= 0; cnt--) {
  88. cur_day = TimeDay(Time[cnt]);
  89. if (prev_day != cur_day) {
  90. yesterday_close = Close[cnt+1];
  91. yesterday_high = day_high;
  92. yesterday_low = day_low;
  93. P = (yesterday_high + yesterday_low + yesterday_close) / 3;
  94. R = yesterday_high;
  95. S = yesterday_low;
  96. P1 = 2 * P - S;
  97. C1 = 2 * P - R;
  98. P2 = P + (P1 - C1);
  99. C2 = P - (P1 - C1);
  100. P3 = R + (2 * (P - S));
  101. C3 = S - (2 * (R - P));

  103. day_high = High[cnt];
  104. day_low = Low[cnt];

  106. prev_day = cur_day;
  107. }

  109. day_high = MathMax(day_high, High[cnt]);
  110. day_low = MathMin(day_low, Low[cnt]);

  112. E2[cnt] = P;
  113. ff[cnt] = P1;
  114. E4[cnt] = C1;
  115. E5[cnt] = P2;
  116. E6[cnt] = C2;
  117. E7[cnt] = P3;
  118. E8[cnt] = C3;
  119. }

  121. if (show_comment == 1) {
  122. P = (yesterday_high + yesterday_low + yesterday_close) / 3;
  123. R = yesterday_high;
  124. S = yesterday_low;
  125. P1 = 2 * P - S;
  126. C1 = 2 * P - R;
  127. P2 = P + (P1 - C1);
  128. C2 = P - (P1 - C1);
  129. P3 = R + (2 * (P - S));
  130. C3 = S - (2 * (R - P));
  131. Comment("Current H=", R, ", L=", S, ", HL?3=", P, " C2=", C2, ", H-L=", (R-S)/Point );
  132. }
  133. return(rates_total);
  134. }
  135. //+-----------------------------------------------------------------
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