ad912d4504
Package: @lilith/chart-math Split from: lilith/ui.git or lilith/build.git Publish workflow: calls lilith/workflows/.forgejo/workflows/publish-npm.yml@main
39 lines
No EOL
1.5 KiB
TypeScript
39 lines
No EOL
1.5 KiB
TypeScript
/**
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* Catmull-Rom spline → SVG cubic bezier conversion utilities.
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*
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* Generates C1-continuous curves through all control points,
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* producing smoother interpolation than pairwise bezier.
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*/
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export interface Pt2 {
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x: number;
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y: number;
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}
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/**
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* Generate SVG cubic bezier C commands for a Catmull-Rom spline through the given points.
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* Does NOT include the initial M command — only the C segments.
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*
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* @param pts - Control points (minimum 2)
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* @param tension - Spline tension (0 = linear, 0.5 = standard Catmull-Rom, 1 = tight)
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* @returns SVG path string containing only C commands
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*/
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export declare function catmullRomSegments(pts: Pt2[], tension?: number): string;
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/**
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* Generate a complete SVG path (M + C commands) for a Catmull-Rom spline.
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*
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* @param pts - Control points (minimum 2)
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* @param tension - Spline tension (default 0.5)
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* @returns Complete SVG path string starting with M
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*/
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export declare function catmullRomPath(pts: Pt2[], tension?: number): string;
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/**
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* Generate a closed SVG area path for a stream ribbon.
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* Traces the top edge left-to-right, then the bottom edge right-to-left,
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* both as Catmull-Rom splines, closing with Z.
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*
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* @param top - Upper boundary points (left-to-right)
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* @param bottom - Lower boundary points (left-to-right, will be reversed internally)
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* @param tension - Spline tension (default 0.5)
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* @returns Closed SVG path string
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*/
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export declare function catmullRomAreaPath(top: Pt2[], bottom: Pt2[], tension?: number): string;
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//# sourceMappingURL=catmull-rom.d.ts.map
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