Entity

Base class of everything stored in the model. Each model entity is represented by one object, so ===, Set and Map work as identity. Deleted entities keep entityId, isValid and isDeleted; their other properties throw ReferenceError until undo restores them.

Extended by

• DrawingElement
• Vertex
• Loop
• EdgeUse
• Curve
• ComponentDefinition
• Material
• Guide

Properties

entityId

readonly entityId: number

Identifier that stays the same for the entity’s lifetime, including across undo and redo.

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isDeleted

readonly isDeleted: boolean

Whether the entity was deleted, for example by an edit or by undo.

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isValid

readonly isValid: boolean

Whether the entity still exists in the model.

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type

abstract readonly type: "Vertex" | "Edge" | "Face" | "Loop" | "EdgeUse" | "Curve" | "ArcCurve" | "ComponentDefinition" | "ComponentInstance" | "Group" | "Material" | "Guide"

The concrete class name, for narrowing unions such as AnyElement.