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> Unreal Engine API Reference > Runtime > Navmesh > Recast > rcReplaceConvexPolyArea

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rcReplaceConvexPolyArea

Replaces an area id in spans with matching filter area within the specified convex polygon.

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References

Module	Navmesh
Header	/Engine/Source/Runtime/Navmesh/Public/Recast/Recast.h
Include	#include "Recast/Recast.h"
Source	/Engine/Source/Runtime/Navmesh/Private/Recast/RecastArea.cpp

Syntax

void rcReplaceConvexPolyArea
(
    rcContext * ctx,
    const float * verts,
    const int nverts,
    const float hmin,
    const float hmax,
    unsigned char areaId,
    unsigned char filterAreaId,
    rcCompactHeightfield & chf
)

Remarks

Replaces an area id in spans with matching filter area within the specified convex polygon.

The value of spacial parameters are in world units.

The y-values of the polygon vertices are ignored. So the polygon is effectively projected onto the xz-plane at hmin_, then extruded to hmax_.

Parameters

Parameter	Description
ctx	The build context to use during the operation.
verts	The vertices of the polygon [Fomr: (x, y, z) * nverts]
nverts	The number of vertices in the polygon.
hmin	The height of the base of the polygon.
hmax	The height of the top of the polygon.
areaId	The area id to apply. [Limit: <= #RC_WALKABLE_AREA]
chf	A populated compact heightfield.