Class VectorFieldRenderer

java.lang.Object

com.arbergashi.charts.render.BaseRenderer

com.arbergashi.charts.render.analysis.VectorFieldRenderer

All Implemented Interfaces:

ChartRenderer

public class VectorFieldRenderer
extends BaseRenderer

Vector Field renderer. Draws a vector field (e.g. gravity/electromagnetism) as a grid of arrows.

Performance: the draw path is allocation-free (no Point2D/Path objects per arrow). The grid resolution can be adjusted for performance vs. detail.

Since:

2026-01-01

Version:

1.0.0

Author:

Arber Gashi

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	VectorFieldRenderer.VectorFieldFunction	Primitive interface for vector fields to avoid boxing/allocations.

Field Summary

Fields inherited from class BaseRenderer

PIXEL_BUF, PIXEL_BUF4

Constructor Summary

Constructors

Constructor	Description
VectorFieldRenderer(VectorFieldRenderer.VectorFieldFunction vectorField)

Method Summary

Modifier and Type	Method	Description
protected void	drawData(Graphics2D g2, ChartModel model, PlotContext context)	Implementation-specific drawing logic.
void	setGridResolution(int resolution)

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

VectorFieldRenderer

public VectorFieldRenderer(VectorFieldRenderer.VectorFieldFunction vectorField)

Method Details

setGridResolution

public void setGridResolution(int resolution)

drawData

protected void drawData(Graphics2D g2,
 ChartModel model,
 PlotContext context)

Description copied from class: BaseRenderer

Implementation-specific drawing logic. Must follow Zero-Allocation rules.

Specified by:

drawData in class BaseRenderer