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Add user-configurable toggle for 'nice' scale on charts #777

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Add user-configurable toggle for 'nice' scale on charts #777

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fd8c90e
Initial plan
Copilot Oct 17, 2025
3743380
Add BarChartNice signal for nice scale toggle
Copilot Oct 17, 2025
4ba5494
Rename BarChartNice to ScaleNice for generality
Copilot Oct 17, 2025
d008ec2
Implement ScaleNice signal globally in textSignals
Copilot Oct 17, 2025
9e5f0fb
Move scaleNice signal to GlobalScope
Copilot Oct 17, 2025
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1 change: 1 addition & 0 deletions packages/sanddance-explorer/src/dialogs/settings.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,7 @@ function filterSignals(signal: NewSignal) {
case SandDance.constants.SignalNames.ColorReverse:
case SandDance.constants.SignalNames.PointScale:
case SandDance.constants.SignalNames.TreeMapMethod:
case SandDance.constants.SignalNames.ScaleNice:
case SandDance.constants.SignalNames.ZGrounded:
return false;
default:
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2 changes: 1 addition & 1 deletion packages/sanddance-specs/src/charts/barchartH.ts
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Expand Up @@ -62,7 +62,6 @@ export default function (specContext: SpecContext): SpecBuilderProps {
});
} else {
const aggProps: AggregateContainerProps = {
niceScale: true,
dock: 'left',
globalAggregateMaxExtentSignal: 'aggMaxExtent',
globalAggregateMaxExtentScaledSignal: 'aggMaxExtentScaled',
Expand Down Expand Up @@ -153,6 +152,7 @@ export default function (specContext: SpecContext): SpecBuilderProps {
specCapabilities: {
countsAndSums: true,
percentage: true,
signals: totalStyle !== 'sum-strip-percent' ? [SignalNames.ScaleNice] : undefined,
roles: [
{
role: 'y',
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2 changes: 1 addition & 1 deletion packages/sanddance-specs/src/charts/barchartV.ts
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Expand Up @@ -62,7 +62,6 @@ export default function (specContext: SpecContext): SpecBuilderProps {
});
} else {
const aggProps: AggregateContainerProps = {
niceScale: true,
dock: 'bottom',
globalAggregateMaxExtentSignal: 'aggMaxExtent',
globalAggregateMaxExtentScaledSignal: 'aggMaxExtentScaled',
Expand Down Expand Up @@ -152,6 +151,7 @@ export default function (specContext: SpecContext): SpecBuilderProps {
specCapabilities: {
countsAndSums: true,
percentage: true,
signals: totalStyle !== 'sum-strip-percent' ? [SignalNames.ScaleNice] : undefined,
roles: [
{
role: 'x',
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1 change: 0 additions & 1 deletion packages/sanddance-specs/src/charts/strips.ts
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Expand Up @@ -36,7 +36,6 @@ export default function (specContext: SpecContext): SpecBuilderProps {
const globalAggregateMaxExtentSignal = 'globalAggregateMaxExtentSignal';
const props: AggregateContainerProps = {
dock: 'top',
niceScale: false,
globalAggregateMaxExtentScaledSignal,
globalAggregateMaxExtentSignal,
sumBy: specColumns.size,
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1 change: 0 additions & 1 deletion packages/sanddance-specs/src/charts/treemap.ts
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Expand Up @@ -36,7 +36,6 @@ export default function (specContext: SpecContext): SpecBuilderProps {
const globalAggregateMaxExtentSignal = 'globalAggregateMaxExtentSignal';
const props: AggregateContainerProps = {
dock: 'top',
niceScale: false,
globalAggregateMaxExtentScaledSignal,
globalAggregateMaxExtentSignal,
sumBy: specColumns.size,
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1 change: 1 addition & 0 deletions packages/sanddance-specs/src/constants.ts
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Expand Up @@ -68,6 +68,7 @@ export const SignalNames = {
TextSize: 'Text_SizeSignal',
TextTitleSize: 'Text_TitleSizeSignal',
TreeMapMethod: 'Chart_TreeMapMethodSignal',
ScaleNice: 'Chart_ScaleNiceSignal',
XBins: 'RoleX_BinsSignal',
YBins: 'RoleY_BinsSignal',
ZHeight: 'RoleZ_HeightSignal',
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1 change: 1 addition & 0 deletions packages/sanddance-specs/src/globalScope.ts
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Expand Up @@ -25,6 +25,7 @@ export interface GlobalSignals {
plotOffsetRight: NewSignal;
plotHeightOut: NewSignal;
plotWidthOut: NewSignal;
scaleNice: NewSignal;
}

export interface GlobalScopeProps {
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5 changes: 2 additions & 3 deletions packages/sanddance-specs/src/layouts/aggregateContainer.ts
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Expand Up @@ -27,7 +27,6 @@ export interface AggregateContainerProps extends LayoutProps {
sumBy: Column;
globalAggregateMaxExtentSignal: string;
globalAggregateMaxExtentScaledSignal: string;
niceScale: boolean;
showAxes: boolean;
}

Expand Down Expand Up @@ -69,7 +68,7 @@ export class AggregateContainer extends Layout {

public build(): InnerScope {
const { aggregation, names, props } = this;
const { dock, globalScope, groupings, niceScale, parentScope, showAxes } = props;
const { dock, globalScope, groupings, parentScope, showAxes } = props;

addTransforms(globalScope.data,
{
Expand Down Expand Up @@ -137,7 +136,7 @@ export class AggregateContainer extends Layout {
},
0,
],
nice: niceScale,
nice: { signal: globalScope.signals.scaleNice.name },
zero: true,
reverse: dock === 'top',
};
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9 changes: 9 additions & 0 deletions packages/sanddance-specs/src/signals.ts
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Expand Up @@ -85,6 +85,15 @@ export function textSignals(context: SpecContext, heightSignal: string) {
step: 0.05,
},
},
{
name: SignalNames.ScaleNice,
value: true,
bind: {
name: specViewOptions.language.scaleNice,
debounce,
input: 'checkbox',
},
},
];
return signals;
}
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1 change: 1 addition & 0 deletions packages/sanddance-specs/src/specBuilder.ts
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Expand Up @@ -72,6 +72,7 @@ export class SpecBuilder {
plotOffsetRight: { name: SignalNames.PlotOffsetRight, update: '0' },
plotHeightOut: { name: SignalNames.PlotHeightOut, update: SignalNames.PlotHeightIn },
plotWidthOut: { name: SignalNames.PlotWidthOut, update: SignalNames.PlotWidthIn },
scaleNice: { name: SignalNames.ScaleNice },
};
}

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5 changes: 5 additions & 0 deletions packages/sanddance-specs/src/types.ts
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Expand Up @@ -223,6 +223,11 @@ export interface SpecLanguage {
*/
treeMapMethod: string;

/**
* Label for nice scale toggle.
*/
scaleNice: string;

/**
* Label for scatterPlot point scale slider.
*/
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1 change: 1 addition & 0 deletions packages/sanddance/src/defaults.ts
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Expand Up @@ -52,6 +52,7 @@ export const defaultViewerOptions: ViewerOptions = {
InnerPaddingSize: 'Inner padding size',
OuterPaddingSize: 'Outer padding size',
treeMapMethod: 'Treemap layout',
scaleNice: 'Nice scale',
facetColumns: 'Facet columns',
facetRows: 'Facet rows',
markOpacitySignal: 'Mark opacity',
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