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SkipEmptySurfaceRegion

If the input surface contains at least one valid point in a given region, then the region is copied to the output; otherwise Nil is returned.

Applications: Secures against domain errors caused by regions with no valid point, e.g. just before the SurfaceMassCenter filter is to be invoked.

Syntax

void avl::SkipEmptySurfaceRegion
(
	const avl::Surface& inSurface,
	const avl::Region& inRegion,
	atl::Conditional<avl::Region>& outNotEmptySurfaceRegion,
	bool& outIsNotEmpty
)

Parameters

	Name	Type	Default	Description
	inSurface	const Surface&
	inRegion	const Region&		Input region
	outNotEmptySurfaceRegion	Conditional<Region>&
	outIsNotEmpty	bool&

Errors