java.lang.Object

com.arbergashi.charts.render.BaseRenderer

com.arbergashi.charts.render.financial.RSIRenderer

All Implemented Interfaces:: ChartRenderer

public final class RSIRenderer extends BaseRenderer

RSIRenderer - Relative Strength Index

Professional RSI indicator renderer for momentum analysis. Displays RSI line with overbought/oversold zones.

Features:

RSI Line: Momentum indicator (0-100 scale)
Overbought Zone: Above 70 (red shading)
Oversold Zone: Below 30 (green shading)
Neutral Zone: 30-70 range
Reference Lines: At 30, 50, 70 levels

Data Mapping:

ChartPoint fields:
  x       → Time/Index
  y       → RSI value (0-100)

Calculation:

RS = Average Gain / Average Loss (14-period default)
RSI = 100 - (100 / (1 + RS))

Since:: 2026-01-01
Version:: 1.0.0
Author:: Arber Gashi

Field Summary

Fields inherited from class BaseRenderer
PIXEL_BUF, PIXEL_BUF4
Constructor Summary

Constructors

Constructor

Description

RSIRenderer()
Method Summary

Modifier and Type

Method

Description

protected void

drawData(Graphics2D g, ChartModel model, PlotContext context)

Implementation-specific drawing logic.

Methods inherited from class BaseRenderer
drawHighlightPoint, drawI18nLabel, drawLabel, getArc, getCachedFont, getCachedGradient, getCachedStroke, getCachedStroke, getCachedStroke, getCubicCurve, getEllipse, getId, getLayerIndex, getLegendColor, getLine, getName, getPathCache, getPointAt, getRect, getRoundRectangle, getSeriesColor, getSeriesStroke, getTheme, getTooltipText, isLegendRequired, isMultiColor, pBuffer, pBuffer4, render, resolveTheme, seriesOrBase, setLayerIndex, setMultiColor, setTheme, setupQualityHints, themeAccent, themeAxisLabel, themeBackground, themeBearish, themeBullish, themeForeground, themeGrid, themeSeries

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface ChartRenderer
clearHover, createContext, getFocusValues, getPreferredYRange, renderEmptyState, supportsEmptyState

Constructor Details
- RSIRenderer
  
  public RSIRenderer()
Method Details
- drawData
  
  protected void drawData(Graphics2D g, ChartModel model, PlotContext context)
  
  Description copied from class: BaseRenderer
  
  Implementation-specific drawing logic. Must follow Zero-Allocation rules.
  
  Specified by:
  
  drawData in class BaseRenderer