PRC Chart Builder

A WordPress block for building charts using the PRC Charting Library.

Configuration Reference

General Layout Attributes

Base Config Path	Block Attribute	Type	Default Value	Description
layout.width	width	number	640	Chart width in pixels
layout.height	height	number	400	Chart height in pixels
layout.type	chartType	'bar'|'diverging-bar'|'line'|'area'|'scatter'|'pie'|'dot-plot'|'stacked-bar'|'single-stacked-bar'|'grouped-bar'|'exploded-bar'|'stacked-area'|'map-usa'|'map-usa-counties'|'map-usa-block'|'map-world'|'map-europe'	"bar"	Type of chart to render
layout.orientation	chartOrientation	'vertical'|'horizontal'	"vertical"	Chart orientation
layout.parentClass	parentClass	string	undefined	Parent class for container
layout.name	--	string	"wp-block-prc-block-chart-builder-controller"	Block name identifier
layout.padding.top	paddingTop	number	0	Top padding of chart area
layout.padding.right	paddingRight	number	0	Right padding of chart area
layout.padding.bottom	paddingBottom	number	0	Bottom padding of chart area
layout.padding.left	paddingLeft	number	0	Left padding of chart area
layout.overflowX	overflowX	'scroll-fixed-y-axis'|'responsive'|'scroll'	"responsive"	Horizontal overflow handling
layout.mobileBreakpoint	mobileBreakpoint	number	480	Mobile layout trigger width
layout.horizontalRules	horizontalRules	boolean	true	Show horizontal grid lines

Metadata Attributes

Base Config Path	Block Attribute	Type	Default Value	Description
metadata.active	metaTextActive	boolean	false	Enable/disable metadata display
metadata.title	metaTitle	string	""	Chart title
metadata.subtitle	metaSubtitle	string	""	Chart subtitle
metadata.note	metaNote	string	""	Additional notes about the chart
metadata.source	metaSource	string	""	Data source attribution
metadata.tag	metaTag	string	"PEW RESEARCH CENTER"	Tag label

Colors and Plot Bands

Base Config Path	Block Attribute	Type	Default Value	Description
colors	customColors	string[]	["#436983", "#bf3927", "#756a7e", "#ea9e2c", "#bc7b2b", "#eeece4"]	Chart color palette
plotBands.active	plotBandsActive	boolean	false	Enable/disable plot bands
plotBands.allowDrag	--	boolean	false	Allow dragging of plot bands
plotBands.allowResize	--	boolean	false	Allow resizing of plot bands
plotBands.dimension	--	string	"x"	Dimension for plot bands
plotBands.bands	plotBands	PlotBand[]	[]	Array of plot band configurations

Axis Configuration

Independent Axis (X-Axis)

Base Config Path	Block Attribute	Type	Default Value	Description
independentAxis.active	xAxisActive	boolean	true	Enable/disable X-axis
independentAxis.label	xLabel	string	""	X-axis label
independentAxis.scale	xScale	'linear'|'time'|'log'|'sqrt'	"linear"	Scale type
independentAxis.dateFormat	xDateFormat	'%Y'|'%y'|'%-m/%Y'|'%-m/%y'|'%m/%Y'|'%m/%y'|'%B %Y'|'%b %Y'|'%B '%y'|'%b '%y'|'%-m/%-d/%Y'|'%-d/%-m/%Y'|'%-m/%-d/%y'|'%-d/%-m/%y'|'%-m/%-d'|'%-d/%-m'|'%m/%-d/%Y'|'%-d/%m/%Y'|'%m/%-d/%y'|'%-d/%m/%y'|'%m/%-d'|'%-d/%m'|'%B %-d, %Y'|'%B %-d %Y'|'%b %-d, %Y'|'%b %-d %Y'|'%-d %B, %Y'|'%-d %B %Y'|'%-d %b, %Y'|'%-d %b %Y'|'%B %-d '%y'|'%-d %B '%y'|'%b %-d '%y'|'%-d %b '%y'|'%B %-d'|'%-d %B'|'%b %-d'|'%-d %b'|'%B'|'%b'	"%-m/%Y"	Date format for time scale
independentAxis.domain	xMinDomain, xMaxDomain	[number,number]	[0, 100]	Axis domain range
independentAxis.domainPadding	--	number	20	Padding for domain
independentAxis.showZero	showXMinDomainLabel	boolean	false	Show zero on axis
independentAxis.padding	xLabelPadding	number	60	Axis padding
independentAxis.tickAngle	xTickLabelAngle	number	0	Angle of tick labels
independentAxis.tickCount	xTickNum	number	5	Number of ticks
independentAxis.tickValues	xTickExact	number[]	undefined	Exact tick values
independentAxis.tickFormat	--	Function	null	Custom tick format function
independentAxis.ticksToLocaleString	xTicksToLocaleString	boolean	false	Use locale string for ticks
independentAxis.abbreviateTicks	xAbbreviateTicks	boolean	false	Abbreviate tick values
independentAxis.abbreviateTicksDecimals	xAbbreviateTicksDecimals	number	0	Decimals for abbreviated ticks
independentAxis.tickUnit	xTickUnit	string	""	Unit for tick values
independentAxis.tickUnitPosition	xTickUnitPosition	'start'|'end'	"end"	Position of tick unit
independentAxis.tickLabels.textAnchor	--	'start'|'middle'|'end'	"middle"	Tick label text anchor
independentAxis.tickLabels.verticalAnchor	--	'start'|'middle'|'end'	"middle"	Tick label vertical anchor
independentAxis.axisLabel.textAnchor	--	'start'|'middle'|'end'	"middle"	Axis label text anchor
independentAxis.axisLabel.verticalAnchor	--	'start'|'middle'|'end'	"middle"	Axis label vertical anchor

Dependent Axis (Y-Axis)

Base Config Path	Block Attribute	Type	Default Value	Description
dependentAxis.active	yAxisActive	boolean	false	Enable/disable Y-axis
dependentAxis.label	yLabel	string	""	Y-axis label
dependentAxis.scale	yScale	'linear'|'time'|'log'|'sqrt'	"linear"	Scale type
dependentAxis.domain	yMinDomain, yMaxDomain	[number,number]	[0, 200]	Axis domain range
dependentAxis.domainPadding	--	number	20	Padding for domain
dependentAxis.showZero	showYMinDomainLabel	boolean	true	Show zero on axis
dependentAxis.padding	yLabelPadding	number	100	Axis padding
dependentAxis.tickCount	yTickNum	number	10	Number of ticks
dependentAxis.tickValues	yTickExact	number[]	undefined	Exact tick values
dependentAxis.tickFormat	--	Function	null	Custom tick format function
dependentAxis.ticksToLocaleString	yTicksToLocaleString	boolean	false	Use locale string for ticks
dependentAxis.abbreviateTicks	yAbbreviateTicks	boolean	true	Abbreviate tick values
dependentAxis.abbreviateTicksDecimals	yAbbreviateTicksDecimals	number	0	Decimals for abbreviated ticks
dependentAxis.tickUnit	yTickUnit	string	""	Unit for tick values
dependentAxis.tickUnitPosition	yTickUnitPosition	'start'|'end'	"end"	Position of tick unit
dependentAxis.tickLabels.textAnchor	--	'start'|'middle'|'end'	"middle"	Tick label text anchor
dependentAxis.tickLabels.verticalAnchor	--	'start'|'middle'|'end'	"middle"	Tick label vertical anchor
dependentAxis.axisLabel.textAnchor	--	'start'|'middle'|'end'	"middle"	Tick label text anchor
dependentAxis.axisLabel.verticalAnchor	--	'start'|'middle'|'end'	"middle"	Tick label vertical anchor

Chart Type-Specific Configurations

Bar Charts

Base Config Path	Block Attribute	Type	Default Value	Description
bar.hasRectStroke	elementHasStroke	boolean	false	Show bar borders
bar.rectStrokeColor	--	string	"white"	Color of bar borders
bar.rectStrokeWidth	--	number	1	Width of bar borders
bar.barPadding	barPadding	number	0.2	Padding between bars
bar.barGroupPadding	barGroupPadding	number	0.2	Padding between bar groups
bar.groupBreaksActive	groupBreaksActive	boolean	false	Enable group breaks
bar.groupBreaks	groupBreaks	object	{}	Group break configurations
bar.groupBreaks.breakStyles.variation	--	'empty'|'solid'|'dotted'|'dashed'|'heartbeat'	"solid"	Break style variation
bar.groupBreaks.labelStyles.fontStyle	--	'normal'|'italic'|'bold'	"normal"	Label font style

Line/Area Charts

Base Config Path	Block Attribute	Type	Default Value	Description
line.interpolation	lineInterpolation	'curveBasis'|'curveBasisClosed'|'curveBasisOpen'|'curveStep'|'curveStepAfter'|'curveStepBefore'|'curveLinear'|'curveLinearClosed'|'curveCardinal'|'curveCardinalClosed'|'curveCardinalOpen'|'curveCatmullRom'|'curveCatmullRomClosed'|'curveMonotoneX'|'curveMonotoneY'|'curveNatural'	"curveLinear"	Line interpolation type
line.strokeDasharray	lineStrokeDashArray	string	"1"	Line dash pattern
line.strokeWidth	lineStrokeWidth	number	3	Line width
line.showPoints	lineNodes	boolean	false	Show data points
line.showArea	--	boolean	false	Show area fill
line.areaFillOpacity	areaFillOpacity	number	0.4	Opacity of area fill

Data Rendering Configuration

Base Config Path	Block Attribute	Type	Default Value	Description
dataRender.x	independentVariable	string	"x"	Independent variable key
dataRender.y	--	string	"y"	Dependent variable key
dataRender.x2	--	string	null	Secondary X variable
dataRender.y2	--	string	null	Secondary Y variable
dataRender.sortKey	sortKey	string	"y"	Key to sort data by
dataRender.sortOrder	sortOrder	'ascending'|'descending'|'reverse'|'none'	"ascending"	Sort direction
dataRender.categories	categories	string[]	["A", "B", "C", "D", "E", "F", "G", "H", "I", "J"]	Data categories
dataRender.xScale	xScale	'linear'|'time'|'log'|'sqrt'	"linear"	X-axis scale type
dataRender.yScale	yScale	'linear'|'time'|'log'|'sqrt'	"linear"	Y-axis scale type
dataRender.xFormat	--	Function	null	X value format
dataRender.yFormat	--	Function	null	Y value format
dataRender.numberFormat	--	'en-US'|'en-GB'|'de-DE'|'fr-FR'|'es-ES'|'it-IT'|'ja-JP'|'ko-KR'|'pt-BR'|'zh-CN'|'zh-TW'	"en-US"	Number formatting locale
dataRender.isHighlightedColor	--	string	"#ECDBAC"	Highlight color
dataRender.mapScale	mapScale	'ordinal'|'threshold'|'quantile'|'quantize'|'linear'	"threshold"	Map scale type
dataRender.mapScaleDomain	mapScaleDomain	number[]	[10, 20, 30, 40, 50]	Map scale domain

Animation Configuration

Base Config Path	Block Attribute	Type	Default Value	Description
animate.active	--	boolean	false	Enable animations
animate.animationWhitelist	--	string[]	[]	Whitelisted animations
animate.duration	--	number	2000	Animation duration (ms)

Tooltip Configuration

Base Config Path	Block Attribute	Type	Default Value	Description
tooltip.active	tooltipActive	boolean	true	Enable tooltips
tooltip.activeOnMobile	tooltipActiveOnMobile	boolean	true	Enable mobile tooltips
tooltip.headerActive	tooltipHeaderActive	boolean	true	Show tooltip header
tooltip.headerValue	tooltipHeaderValue	string	"independentValue"	Header value source
tooltip.format	tooltipFormat	string	"{{row}}: {{value}}"	Tooltip format string
tooltip.offsetX	tooltipOffsetX	number	10	Horizontal offset
tooltip.offsetY	tooltipOffsetY	number	10	Vertical offset
tooltip.abbreviateValue	--	boolean	false	Abbreviate values
tooltip.absoluteValue	--	boolean	false	Show absolute values
tooltip.toFixedDecimal	--	number	0	Decimal places
tooltip.toLocaleString	--	boolean	true	Use locale formatting
tooltip.customFormat	--	Function	null	Custom format function
tooltip.rlsFormat	--	boolean	false	Use RLS formatting
tooltip.dateFormat	tooltipDateFormat	string	"%-m/%Y"	Date format
tooltip.caretPosition	--	string	"bottom"	Tooltip caret position
tooltip.deemphasizeSiblings	deemphasizeSiblings	boolean	false	Fade non-highlighted elements
tooltip.deemphasizeOpacity	deemphasizeOpacity	number	0.5	Fade opacity

Legend Configuration

Base Config Path	Block Attribute	Type	Default Value	Description
legend.active	legendActive	boolean	false	Enable legend
legend.orientation	legendOrientation	'row'|'column'|'row-reverse'|'column-reverse'	"row"	Legend layout direction
legend.title	legendTitle	string	""	Legend title
legend.alignment	legendAlignment	'flex-start'|'flex-end'|'center'|'none'	"center"	Legend alignment
legend.offsetX	legendOffsetX	number	0	Horizontal offset
legend.offsetY	legendOffsetY	number	0	Vertical offset
legend.markerStyle	legendMarkerStyle	'rect'|'circle'|'line'	"rect"	Legend marker style
legend.borderStroke	legendBorderStroke	string	"black"	Border color
legend.fill	legendFill	string	"white"	Background color
legend.categories	legendCategories	string[]	[]	Legend categories
legend.labelDelimiter	legendLabelDelimiter	string	"to"	Label delimiter
legend.labelLower	legendLabelLower	string	"Less than "	Lower bound label
legend.labelUpper	legendLabelUpper	string	"More than "	Upper bound label

Label Configuration

Base Config Path	Block Attribute	Type	Default Value	Description
labels.active	labelsActive	boolean	false	Enable data labels
labels.showFirstLastPointsOnly	showFirstLastPointsOnly	boolean	false	Show only first/last labels
labels.color	labelColor	'inherit'|'contrast'|'black'|'white'	"inherit"	Label color
labels.fontWeight	labelFontWeight	number	200	Font weight
labels.fontSize	labelFontSize	number	12	Font size
labels.fontFamily	--	string	"'franklin-gothic-urw', Verdana, Geneva, sans-serif"	Font family
labels.labelPositionBar	barLabelPosition	'inside'|'outside'|'center'	"inside"	Label position for bars
labels.labelCutoff	labelCutoff	number	5	Value cutoff for labels
labels.labelCutoffMobile	labelCutoffMobile	number	10	Mobile cutoff value
labels.labelPositionDX	labelPositionDX	number	-25	Horizontal label offset
labels.labelPositionDY	labelPositionDY	number	0	Vertical label offset
labels.pieLabelRadius	--	number	60	Pie chart label radius
labels.abbreviateValue	--	boolean	false	Abbreviate values
labels.absoluteValue	labelAbsoluteValue	boolean	false	Show absolute values
labels.toLocaleString	labelFormatValue	boolean	true	Use locale formatting
labels.truncateDecimal	labelTruncateDecimal	boolean	true	Truncate decimals
labels.toFixedDecimal	labelToFixedDecimal	number	0	Decimal places
labels.labelUnit	labelUnit	string	""	Value unit
labels.labelUnitPosition	labelUnitPosition	'start'|'end'	"end"	Unit position
labels.textAnchor	--	'start'|'middle'|'end'	"middle"	Text anchor position
labels.customLabelFormat	--	Function	null	Custom format function

Map Configuration

Base Config Path	Block Attribute	Type	Default Value	Description
map.ignoreSmallStateLabels	mapIgnoreSmallStateLabels	boolean	false	Hide small state labels
map.ignoredLabels	--	string[]	[]	Labels to ignore
map.abbreviateLabels	mapAbbreviateLabels	boolean	true	Use abbreviated labels
map.blockRectSize	mapBlockRectSize	number	44	Block size for block maps
map.pathBackgroundFill	mapPathBackgroundFill	string	"#f7f7f7"	Background fill color
map.pathStroke	mapPathStroke	string	"#d3d3d3"	Border color
map.showCountyBoundaries	showCountyBoundaries	boolean	false	Show county borders
map.showStateBoundaries	mapShowStateBoundaries	boolean	true	Show state borders
map.zoomActive	--	boolean	false	Enable map zooming

Custom Chart Configuration

Base Config Path	Block Attribute	Type	Default Value	Description
custom.isCustomChart	isCustomChart	boolean	false	Enable custom chart type
custom.attributes.chartType	customAttributes	object	null	Custom chart attributes

Usage

[Add usage instructions here]

Development

[Add development setup instructions here]

License

[Add license information here]