Struct GraphHitInfo

float distance

Distance from origin to point.

GraphNode node

Node which contained the edge which was hit.

If the linecast did not hit anything then this will be set to the last node along the line's path (the one which contains the endpoint).

For layered grid graphs the linecast will return true (i.e: no free line of sight) if, when walking the graph, we ended up at the right X,Z coordinate for the end node, but the end node was on a different level (e.g the floor below or above in a building). In this case no node edge was really hit so this field will still be null.

If the origin was inside an unwalkable node, then this field will be set to that node.

If no node could be found which contained the origin, then this field will be set to null.

Vector3 origin

Start of the segment/ray.

Note that the point passed to the Linecast method will be clamped to the surface on the navmesh, but it will be identical when seen from above.

Vector3 point

Hit point.

This is typically a point on the border of the navmesh.

In case no obstacle was hit then this will be set to the endpoint of the segment.

If the origin was inside an unwalkable node, then this will be set to the origin point.

Vector3 tangent

Tangent of the edge which was hit.

If nothing was hit, this will be Vector3.zero.

Vector3 tangentOrigin

Where the tangent starts.

tangentOrigin and tangent together actually describes the edge which was hit.

If nothing was hit, this will be Vector3.zero.