sumFacetAreas MethodStatic
Sum all facet areas.
sumFacetAreas(source: PolyfaceVisitor | Polyface, vectorToEye?: Vector3d): number
@returns  the sum of all facet areas. Return 0 if source is undefined.
| Parameter | Type | Description | 
|---|---|---|
| source | PolyfaceVisitor | Polyface | polyface or visitor. | 
| vectorToEye | Vector3d | compute sum of (signed) facet areas projected to a view plane perpendicular to vectorToEye.If vectorToEyeis not provided, actual facet areas are calculated (without any projection). | 
Returns - number
the sum of all facet areas. Return 0 if source is undefined.
Defined in
- polyface/PolyfaceQuery.ts Line 316
Last Updated: 24 June, 2025
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