API Reference > geometry-core > Polyface > PolyfaceQuery > sumVolumeBetweenFacetsAndPlane sumVolumeBetweenFacetsAndPlane MethodStatic sum (signed) volumes between facets and a plane. Return a structure with multiple sums: volume = the sum of (signed) volumes between facets and the plane. positiveAreaMomentData, negativeProjectedFacetAreaMoments = moment data with centroid, area, and second moments with respect to the centroid. sumVolumeBetweenFacetsAndPlane(source: Polyface | PolyfaceVisitor, plane: Plane3dByOriginAndUnitNormal): FacetProjectedVolumeSums Parameter Type Description source Polyface | PolyfaceVisitor plane Plane3dByOriginAndUnitNormal Returns - FacetProjectedVolumeSums Defined in polyface/PolyfaceQuery.ts Line 130 Last Updated: 12 June, 2024