DxfExporter

Serializes TechnicalDrawing content to DXF format (AC1015 / AutoCAD R2000).

Constructors

new DxfExporter()

new DxfExporter(_components): DxfExporter

Used through DxfManager:

const dxf = components.get(OBC.DxfManager).exporter.export([
  { drawing, viewports: [{ viewport, x: 10, y: 10 }] },
], { widthMm: 420, heightMm: 297, margin: 10 });

Parameters

Parameter	Type
_components	Components

Returns

DxfExporter

Properties

config

config: object

Export configuration options.

• trueColor — when true, upgrades the output to AC1018 (AutoCAD 2004+) and emits group code 420 (RGB true color) alongside group code 62 (ACI) on every entity. Modern viewers prioritize 420; older apps fall back to 62. Note: the adaptive black/white behavior of ACI 7 is lost when true color is on, since viewers treat the explicit RGB as fixed. Defaults to false.

trueColor

trueColor: boolean = false

---

precision

precision: number = 2

Decimal places used when formatting measurement text in DXF.

Methods

export()

export(entries, paper?): string

Serializes one or more drawings to a DXF string.

When paper is supplied the output uses millimetres (INSUNITS=4) and each viewport is placed at its (x, y) position on the sheet. Without paper the output uses world units (INSUNITS=6).

Parameters

Parameter	Type	Description
entries	DxfDrawingEntry[]	Drawings with their viewport placements.
paper?	DxfPaperOptions	Optional paper sheet dimensions for paper-space export.

Returns

string

---

registerSystemExporter()

registerSystemExporter<T>(SystemClass, handler): void

Registers a custom DXF exporter for a DrawingSystem subclass.

Type parameters

Type parameter
T extends AnnotationSystem<any>

Parameters

Parameter	Type
SystemClass	Object
handler	(sys, ctx) => void

Returns

void