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refactor(indicators): Optimized for incremental calculation

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This commit is contained in:
Toh4iem9
2026-01-01 11:47:16 +01:00
parent f9a4ce229a
commit 94a4691b11
1 changed files with 9 additions and 6 deletions
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Indicators/MyIndicators/Fourier_Series_Pro.mq5
+9 -6
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@@ -1,10 +1,9 @@
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
//| Fourier_Series_Pro.mq5 | //| Fourier_Series_Pro.mq5 |
//| Copyright 2025, xxxxxxxx| //| Copyright 2025, xxxxxxxx|
//| |
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
#property copyright "Copyright 2025, xxxxxxxx" #property copyright "Copyright 2025, xxxxxxxx"
#property version "1.00" #property version "2.00" // Optimized for incremental calculation
#property description "John Ehlers' Fourier Series Model of the Market." #property description "John Ehlers' Fourier Series Model of the Market."
#property indicator_separate_window #property indicator_separate_window
@@ -53,7 +52,10 @@ int OnInit()
SetIndexBuffer(1, BufferROC, INDICATOR_DATA); SetIndexBuffer(1, BufferROC, INDICATOR_DATA);
ArraySetAsSeries(BufferWave, false); ArraySetAsSeries(BufferWave, false);
ArraySetAsSeries(BufferROC, false); ArraySetAsSeries(BufferROC, false);
PlotIndexSetDouble(1, PLOT_EMPTY_VALUE, EMPTY_VALUE);
// Hide ROC if not requested
if(!InpShowROC)
PlotIndexSetDouble(1, PLOT_EMPTY_VALUE, EMPTY_VALUE);
if(InpSource == SOURCE_HEIKIN_ASHI) if(InpSource == SOURCE_HEIKIN_ASHI)
{ {
@@ -87,16 +89,17 @@ void OnDeinit(const int reason)
} }
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
int OnCalculate(const int rates_total, const int, const datetime&[], const double &open[], const double &high[], const double &low[], const double &close[], const long&[], const long&[], const int&[]) int OnCalculate(const int rates_total, const int prev_calculated, const datetime&[], const double &open[], const double &high[], const double &low[], const double &close[], const long&[], const long&[], const int&[])
{ {
if(CheckPointer(g_calculator) == POINTER_INVALID) if(CheckPointer(g_calculator) == POINTER_INVALID)
return 0; return 0;
g_calculator.Calculate(rates_total, PRICE_MEDIAN, open, high, low, close, BufferWave, BufferROC); g_calculator.Calculate(rates_total, prev_calculated, PRICE_MEDIAN, open, high, low, close, BufferWave, BufferROC);
if(!InpShowROC) if(!InpShowROC)
{ {
for(int i=0; i<rates_total; i++) int start = (prev_calculated > 0) ? prev_calculated - 1 : 0;
for(int i = start; i < rates_total; i++)
BufferROC[i] = EMPTY_VALUE; BufferROC[i] = EMPTY_VALUE;
} }