@mlightcad/data-model/lib/entity/dimension/AcDbArcDimension.d.ts

The data-model package provides the core classes for interacting with AutoCAD's database and entities. This package mimics AutoCAD ObjectARX's AcDb (Database) classes and implements the drawing database structure that AutoCAD developers are familiar with.

import { AcGeBox3d, AcGePoint3d, AcGePoint3dLike } from '@mlightcad/geometry-engine';
import { AcDbDimension } from './AcDbDimension';
/**
 * Represents an arc length dimension entity in AutoCAD.
 *
 * This dimension type measures the length of an arc by defining the arc's center point,
 * two points that define the arc's extent, and a point on the arc itself. Arc length
 * dimensions are commonly used in mechanical drawings, architectural plans, and other
 * technical documentation where precise arc measurements are required.
 *
 * The dimension displays the actual arc length value and typically includes extension
 * lines, dimension lines, and arrows positioned to clearly indicate the arc being measured.
 */
export declare class AcDbArcDimension extends AcDbDimension {
    /** The entity type name */
    static typeName: string;
    private _arcPoint;
    private _centerPoint;
    private _xLine1Point;
    private _xLine2Point;
    /**
     * Creates a new arc length dimension.
     *
     * @param centerPoint - The center point of the arc being measured. This defines
     *                      the center of the circle that contains the arc
     * @param xLine1Point - The first extension line end point. This defines one end
     *                      of the arc being measured
     * @param xLine2Point - The second extension line end point. This defines the other
     *                      end of the arc being measured
     * @param arcPoint - A point on the arc that helps define the specific arc segment
     *                   being measured. This point is typically between the two extension
     *                   line points
     * @param dimText - Optional custom dimension text to display instead of the calculated
     *                  arc length value. If null, the calculated length will be displayed
     * @param dimStyle - Optional name of the dimension style table record to use for
     *                   formatting. If null, the current default style will be used
     */
    constructor(centerPoint: AcGePoint3dLike, xLine1Point: AcGePoint3dLike, xLine2Point: AcGePoint3dLike, arcPoint: AcGePoint3dLike, dimText?: string | null, dimStyle?: string | null);
    /**
     * Gets or sets a point on the arc that helps define the arc segment being measured.
     *
     * This point is typically positioned between the two extension line points and helps
     * determine which arc segment should be measured when multiple arcs could be defined
     * by the same center and end points.
     *
     * @returns The arc point that defines the arc segment
     */
    get arcPoint(): AcGePoint3d;
    set arcPoint(value: AcGePoint3d);
    /**
     * Gets or sets the center point of the arc being measured.
     *
     * The center point defines the center of the circle that contains the arc. This point
     * is used to calculate the arc length and position the dimension elements correctly.
     *
     * @returns The center point of the arc
     */
    get centerPoint(): AcGePoint3d;
    set centerPoint(value: AcGePoint3d);
    /**
     * Gets or sets the first extension line end point.
     *
     * This point defines one end of the arc being measured. The extension line extends
     * from this point to the arc, helping to clearly identify the starting point of
     * the arc length measurement.
     *
     * @returns The first extension line end point
     */
    get xLine1Point(): AcGePoint3d;
    set xLine1Point(value: AcGePoint3d);
    /**
     * Gets or sets the second extension line end point.
     *
     * This point defines the other end of the arc being measured. The extension line
     * extends from this point to the arc, helping to clearly identify the ending point
     * of the arc length measurement.
     *
     * @returns The second extension line end point
     */
    get xLine2Point(): AcGePoint3d;
    set xLine2Point(value: AcGePoint3d);
    /**
     * Gets the geometric extents (bounding box) of this dimension entity.
     *
     * The geometric extents define the minimum bounding box that completely contains
     * the dimension entity, including all its components like extension lines,
     * dimension lines, arrows, and text.
     *
     * @returns A 3D bounding box containing the dimension entity
     * @inheritdoc
     */
    get geometricExtents(): AcGeBox3d;
}
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