@mlightcad/graphic-interface/lib/AcGiEntity.d.ts

The graphic-interface package provides the graphics interface for controlling how AutoCAD entities are displayed on screen. This package offers a simplified API compared to AutoCAD ObjectARX's AcGi classes, making it more developer-friendly while maintain

import { AcGeMatrix3d, AcGePoint3d } from '@mlightcad/geometry-engine';
/**
 * Interface that all of display objects need to implement.
 */
export interface AcGiEntity {
    /**
     * JavaScript (and WebGL) use 64‑bit floating point numbers for CPU-side calculations,
     * but GPU shaders typically use 32‑bit floats. A 32-bit float has ~7.2 decimal digits
     * of precision. If passing 64-bit floating vertices data to GPU directly, it will
     * destroy number preciesion.
     *
     * So we adopt a simpler but effective version of the “origin-shift” idea. Recompute
     * geometry using re-centered coordinates and apply offset to its position. The base
     * point is extractly offset value.
     *
     * Get the rendering base point.
     * @returns Return the rendering base point.
     */
    get basePoint(): AcGePoint3d | undefined;
    set basePoint(value: AcGePoint3d | undefined);
    /**
     * Object id of the associated entity in drawing database. When adding this entity into scene,
     * do remember setting the value of this property.
     */
    get objectId(): string;
    set objectId(value: string);
    /**
     * The object Id of the owner of the object. When adding this entity into scene, do remember
     * setting the value of this property.
     */
    get ownerId(): string;
    set ownerId(value: string);
    /**
     * The name of the layer referenced by this entity
     */
    get layerName(): string;
    set layerName(value: string);
    /**
     * Object's visibility
     */
    get visible(): boolean;
    set visible(value: boolean);
    /**
     * An object that can be used to store custom data about the entity.
     */
    get userData(): object;
    set userData(value: object);
    /**
     * Apply the matrix transform to the object and updates the object's position, rotation and scale.
     * @param matrix Input the matrix to apply
     */
    applyMatrix(matrix: AcGeMatrix3d): void;
    /**
     * Highlight this entity.
     */
    highlight(): void;
    /**
     * Unhighlight this entity
     */
    unhighlight(): void;
    /**
     * Return a clone of this object and its direct children (not all descendants).
     * So it means that you need to gurantee the object is flatten by call method
     * 'flatten' before calling this function.
     * This function will deeply clone geometry in this object. But materials are
     * reused directly and not deeply cloned.
     * @returns Return a clone of this object and optionally all descendants.
     */
    fastDeepClone(): AcGiEntity;
}
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