BecakFloatingPanels

18 ago

Library "BecakFloatingPanels"
Library for creating floating indicator panels with MACD, RSI, and Stochastic indicators

calculateMacd(source, fastLength, slowLength, signalLength)
  Calculate MACD components
  Parameters:
    source (float): Price source for calculation
    fastLength (simple int): Fast EMA period
    slowLength (simple int): Slow EMA period
    signalLength (simple int): Signal line period
  Returns: MacdData MACD calculation results

calculateRsi(source, length)
  Calculate RSI
  Parameters:
    source (float): Price source for calculation
    length (simple int): RSI period
  Returns: float RSI value

calculateStochastic(source, high, low, kLength, kSmoothing, dSmoothing)
  Calculate Stochastic components
  Parameters:
    source (float): Price source for calculation
    high (float): High prices
    low (float): Low prices
    kLength (int): %K period
    kSmoothing (int): %K smoothing period
    dSmoothing (int): %D smoothing period
  Returns: StochData Stochastic calculation results

calculateStochSignals(stochK, stochD, overboughtLevel, oversoldLevel)
  Calculate Stochastic signals
  Parameters:
    stochK (float): Stochastic %K series
    stochD (float): Stochastic %D series
    overboughtLevel (float): Overbought threshold
    oversoldLevel (float): Oversold threshold
  Returns: StochSignals Signal flags

calculateChartMetrics(high, low, lookbackLength)
  Calculate chart range and positioning metrics
  Parameters:
    high (float): High prices
    low (float): Low prices
    lookbackLength (int): Lookback period
  Returns: ChartMetrics Chart positioning data

calculateMacdRange(macdLine, signalLine, histogram, safeLookback)
  Calculate MACD range for normalization
  Parameters:
    macdLine (float): MACD line series
    signalLine (float): Signal line series
    histogram (float): Histogram series
    safeLookback (int): Lookback period
  Returns: MacdRange MACD range metrics

initVisualArrays()
  Initialize visual arrays
  Returns: VisualArrays Container with initialized arrays

clearVisuals(visuals)
  Clear all visual elements
  Parameters:
    visuals (VisualArrays): VisualArrays container
  Returns: void

calculatePanelPositions(chartMetrics, oscPlacement, panelHeight, panelSpacing, centerOffset)
  Calculate panel positions based on placement option
  Parameters:
    chartMetrics (ChartMetrics): Chart metrics object
    oscPlacement (string): Panel placement option
    panelHeight (float): Panel height percentage
    panelSpacing (float): Panel spacing percentage
    centerOffset (float): Center offset percentage
  Returns: PanelPositions Panel boundary coordinates

createPanelBackgrounds(visuals, positions, panelLeft, panelRight, showBackground, transparency)
  Create panel backgrounds
  Parameters:
    visuals (VisualArrays): VisualArrays container
    positions (PanelPositions): PanelPositions object
    panelLeft (int): Left boundary
    panelRight (int): Right boundary
    showBackground (bool): Show background flag
    transparency (int): Background transparency
  Returns: void

drawReferenceLines(visuals, positions, chartMetrics, macdRange, dataLeft, dataRight, panelHeight, rsiOverbought, rsiOversold, stochOverbought, stochOversold)
  Draw reference lines for all panels
  Parameters:
    visuals (VisualArrays): VisualArrays container
    positions (PanelPositions): PanelPositions object
    chartMetrics (ChartMetrics): ChartMetrics object
    macdRange (MacdRange): MacdRange object
    dataLeft (int): Left data boundary
    dataRight (int): Right data boundary
    panelHeight (float): Panel height percentage
    rsiOverbought (int): RSI overbought level
    rsiOversold (int): RSI oversold level
    stochOverbought (int): Stochastic overbought level
    stochOversold (int): Stochastic oversold level
  Returns: void

drawMacdIndicator(visuals, macdLine, signalLine, histogram, macdRange, positions, chartMetrics, barIndex, nextBarIndex, barIndexOffset, panelHeight)
  Draw MACD indicator
  Parameters:
    visuals (VisualArrays): VisualArrays container
    macdLine (float): MACD line series
    signalLine (float): Signal line series
    histogram (float): Histogram series
    macdRange (MacdRange): MacdRange object
    positions (PanelPositions): PanelPositions object
    chartMetrics (ChartMetrics): ChartMetrics object
    barIndex (int): Current bar index
    nextBarIndex (int): Next bar index
    barIndexOffset (int): Horizontal offset
    panelHeight (float): Panel height percentage
  Returns: void

drawRsiIndicator(visuals, rsiValue, positions, chartMetrics, barIndex, nextBarIndex, barIndexOffset, panelHeight)
  Draw RSI indicator
  Parameters:
    visuals (VisualArrays): VisualArrays container
    rsiValue (float): RSI value
    positions (PanelPositions): PanelPositions object
    chartMetrics (ChartMetrics): ChartMetrics object
    barIndex (int): Current bar index
    nextBarIndex (int): Next bar index
    barIndexOffset (int): Horizontal offset
    panelHeight (float): Panel height percentage
  Returns: void

drawStochasticIndicator(visuals, stochK, stochD, positions, chartMetrics, barIndex, nextBarIndex, barIndexOffset, panelHeight, stochOverbought, stochOversold)
  Draw Stochastic indicator
  Parameters:
    visuals (VisualArrays): VisualArrays container
    stochK (float): Stochastic %K series
    stochD (float): Stochastic %D series
    positions (PanelPositions): PanelPositions object
    chartMetrics (ChartMetrics): ChartMetrics object
    barIndex (int): Current bar index
    nextBarIndex (int): Next bar index
    barIndexOffset (int): Horizontal offset
    panelHeight (float): Panel height percentage
    stochOverbought (int): Overbought level
    stochOversold (int): Oversold level
  Returns: void

addStochasticSignals(visuals, buySignal, sellSignal, positions, chartMetrics, currentBarIndex, barIndexOffset, panelHeight, signalIndex)
  Add Stochastic buy/sell signals
  Parameters:
    visuals (VisualArrays): VisualArrays container
    buySignal (bool): Buy signal series
    sellSignal (bool): Sell signal series
    positions (PanelPositions): PanelPositions object
    chartMetrics (ChartMetrics): ChartMetrics object
    currentBarIndex (int): Current bar index
    barIndexOffset (int): Horizontal offset
    panelHeight (float): Panel height percentage
    signalIndex (int): Signal index for lookback
  Returns: void

setPanelLabels(macdLabel, rsiLabel, stochLabel, positions, chartMetrics, labelOffset, panelHeight, barIndexOffset)
  Set panel title labels
  Parameters:
    macdLabel (label): MACD label reference
    rsiLabel (label): RSI label reference
    stochLabel (label): Stochastic label reference
    positions (PanelPositions): PanelPositions object
    chartMetrics (ChartMetrics): ChartMetrics object
    labelOffset (int): Label horizontal offset
    panelHeight (float): Panel height percentage
    barIndexOffset (int): Horizontal offset
  Returns: void

showDebugInfo(chartMetrics, debugMode)
  Display debug information
  Parameters:
    chartMetrics (ChartMetrics): ChartMetrics object
    debugMode (bool): Debug mode flag
  Returns: void

ChartMetrics
  Chart metrics container
  Fields:
    visibleHigh (series float): Highest visible price
    visibleLow (series float): Lowest visible price
    chartRange (series float): Price range of chart
    chartCenter (series float): Center point of chart

MacdData
  MACD calculation results
  Fields:
    macdLine (series float): Main MACD line
    signalLine (series float): Signal line
    histogram (series float): MACD histogram

MacdRange
  MACD range metrics for normalization
  Fields:
    highest (series float): Highest MACD value
    lowest (series float): Lowest MACD value
    BRange (series float): Total range

StochData
  Stochastic calculation results
  Fields:
    k_smooth (series float): Smoothed %K line
    d (series float): %D line

StochSignals
  Stochastic signals
  Fields:
    buySignal (series bool): Buy signal flag
    sellSignal (series bool): Sell signal flag

PanelPositions
  Panel positioning data
  Fields:
    macdTop (series float): MACD panel top
    macdBottom (series float): MACD panel bottom
    rsiTop (series float): RSI panel top
    rsiBottom (series float): RSI panel bottom
    stochTop (series float): Stochastic panel top
    stochBottom (series float): Stochastic panel bottom

VisualArrays
  Visual elements arrays container
  Fields:
    macdLines (array<line>): Array of MACD lines
    macdHist (array<box>): Array of MACD histogram boxes
    rsiLines (array<line>): Array of RSI lines
    stochLines (array<line>): Array of Stochastic lines
    stochAreas (array<box>): Array of Stochastic areas
    stochSignals (array<label>): Array of Stochastic signals
    panelBackgrounds (array<box>): Array of panel backgrounds

18 ago

Note di rilascio

v2 change the chart to make it clear

18 ago

Note di rilascio

v3fixed the main issue with the indicator lines not showing properly. The problem was in how the bar indices were being calculated for drawing the lines.
🔧 Key Fixes Made:
1. Bar Index Calculation:
Before:

pinescriptbar_index[barIndex] + barIndexOffset

After:

pinescriptbar_index - barIndex + barIndexOffset

2. What Was Wrong:
The original code was using bar_index[barIndex] which tries to get a historical value of bar_index itself
This was causing incorrect X-coordinates for the lines, making them not visible or positioned incorrectly

3. What's Fixed Now:

MACD Lines: Blue MACD line and orange signal line will now draw properly
RSI Line: Purple RSI line will show correctly in the middle panel
Stochastic Lines: Blue %K and orange %D lines will display properly
Histogram: MACD histogram bars will appear correctly
Signals: Buy/sell signals will be positioned correctly

🎯Fix Works:
The corrected formula bar_index - barIndex + barIndexOffset properly calculates the X-coordinate by:

Taking the current bar index (bar_index)
Subtracting the historical offset (barIndex)
Adding the positioning offset (barIndexOffset)

This ensures the lines are drawn at the correct horizontal positions within the floating panels.
✅ Expected Results:
MACD Panel: Clear blue and orange lines with histogram bars
RSI Panel: Smooth purple RSI line oscillating between 0-100
Stochastic Panel: Blue %K and orange %D lines with overbought/oversold areas