import { type AnyNode, type ColumnNode, type FloorplanGeometry, type FloorplanPoint, type GeometryContext, type StructuralGridNode } from '@pascal-app/core';
export type ColumnFloorplanLevelData = {
    structuralGrids: StructuralGridNode[];
};
export declare function computeColumnFloorplanLevelData({ siblings, nodes, }: {
    siblings: readonly ColumnNode[];
    nodes: Record<string, AnyNode>;
}): ColumnFloorplanLevelData;
/**
 * Stage C floor-plan builder for column. Inlined from the legacy
 * `getColumnPlanFootprint` helper in `floorplan-panel.tsx`. The
 * footprint shape depends on `crossSection` (square / rectangular /
 * round / octagonal / sixteen-sided) and `supportStyle` (vertical /
 * a-frame / x-brace / etc.) — brace supports use a rotated rectangle
 * spanning the base spread; standalone columns use the shaft profile.
 *
 * When selected, switches to a themed accent stroke and emits the
 * orange move-handle dot, four perpendicular side move-arrows for
 * dragging the body, and a rotate-arrow at the front-right corner.
 */
export declare function buildColumnFloorplan(node: ColumnNode, ctx: GeometryContext): FloorplanGeometry | null;
export declare function getColumnFloorplanFootprint(node: ColumnNode): FloorplanPoint[];
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