import { AcApContext } from '../../app';
import { AcEdCommand } from '../../editor';
/**
 * Command to create AutoCAD-style construction lines.
 *
 * This implementation supports the core XLINE branches:
 * - `Point`: two-point definition.
 * - `Hor`: horizontal xline through a point.
 * - `Ver`: vertical xline through a point.
 * - `Ang`: xline at a user-specified angle through a point.
 */
export declare class AcApXLineCmd extends AcEdCommand {
    constructor();
    execute(context: AcApContext): Promise<void>;
    /**
     * Creates one long finite line to mimic an infinite construction line.
     *
     * The underlying viewer already understands infinite entities, but this
     * fallback keeps XLINE behavior stable without relying on runtime-specific
     * infinite-entity constructors.
     */
    private appendFiniteXLine;
    private normalizeDirection;
}
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