OmniGraph Node omni.graph.examples.cpp.Adjacency

omni.graph.examples.cpp.Adjacency Properties

Name	Value
Version	1
Extension	omni.graph.examples.cpp
Has State?	False
Implementation Language	C++
Default Memory Type	cpu
Generated Code Exclusions	None
uiName	Example Node: Adjacency
Generated Class Name	OgnExampleAdjacencyDatabase
Python Module	omni.graph.examples.cpp

omni.graph.examples.cpp.Adjacency Description

Computes chosen adjacency information from specified input mesh topology data.

omni.graph.examples.cpp.Adjacency Inputs

Name	Type	Default	Required?	Descripton
inputs:computeDistances	bool	False	Y	When enabled, the distances from each point to its neighbors is computed and stored in a ‘float[]’ attribute in ‘output’ as specified by ‘nameOfDistancesOutputAttribute’.
	__default	false
inputs:computeNeighborCounts	bool	False	Y	When enabled, the number of neighbors of each point is computed and all are stored in an ‘int[]’ attribute in ‘output’ as specified by ‘nameOfNeighborCountsOutputAttribute’.
	__default	false
inputs:computeNeighborStarts	bool	True	Y	When enabled, the beginning index of neighbors of each point within the arrays computed by either ‘computeNeighbors’ or ‘computeDistances’ is computed and all, plus an additional integer to indicate the end of the array, are stored in an ‘int[]’ attribute in ‘output’ as specified by ‘nameOfNeighborStartsOutputAttribute’. The extra integer at the end allows for easy computing of the number of neighbors of any single point, by subtracting the value in the array corresponding with the point, from the following value in the array.
	__default	true
inputs:computeNeighbors	bool	True	Y	When enabled, the neighbors of each point are computed and stored contiguously in an ‘int[]’ attribute in ‘output’ as specified by ‘nameOfNeighborsOutputAttribute’.
	__default	true
inputs:mesh	bundle	None	Y	Bundle containing topology data to be analysed
inputs:nameOfDistancesOutputAttribute	token	distances	Y	Name of the ‘float[]’ attribute to be created in ‘output’ to contain the computed distances to each neighbor. This is only used if ‘computeDistances’ is true.
	__default	“distances”
inputs:nameOfNeighborCountsOutputAttribute	token	neighborCounts	Y	Name of the ‘int[]’ attribute to be created in ‘output’ to contain the number of neighbors of each point. This is only used if ‘computeNeighborCounts’ is true. A running sum of this array can be computed using ‘computeNeighborStarts’. The neighbors themselves can be computed using ‘computeNeighbors’.
	__default	“neighborCounts”
inputs:nameOfNeighborStartsOutputAttribute	token	neighborStarts	Y	Name of the ‘int[]’ attribute to be created in ‘output’ to contain the beginning index of neighbors of each point in the arrays computed by either ‘computeNeighbors’ or ‘computeDistances’. This is only used if ‘computeNeighborStarts’ is true.
	__default	“neighborStarts”
inputs:nameOfNeighborsOutputAttribute	token	neighbors	Y	Name of the ‘int[]’ attribute to be created in ‘output’ to contain the neighbors of all points. This is only used if ‘computeNeighbors’ is true. The beginnings of each point’s neighbors within this array can be computed using ‘computeNeighborStarts’. The number of neighbors of each point can be computed using ‘computeNeighborCounts’.
	__default	“neighbors”
inputs:nameOfPositionsInputAttribute	token	points	Y	Name of the ‘point3f[]’ attribute in ‘mesh’ containing the positions of each point. This is only used if ‘computeDistances’ is true. The element count of this array overrides ‘pointCount’, when used.
	__default	“points”
inputs:nameOfVertexCountsInputAttribute	token	faceVertexCounts	Y	Name of the ‘int[]’ attribute in ‘mesh’ containing the vertex counts of each face
	__default	“faceVertexCounts”
inputs:nameOfVertexIndicesInputAttribute	token	faceVertexIndices	Y	Name of the ‘int[]’ attribute in ‘mesh’ containing the vertex indices of each face
	__default	“faceVertexIndices”
inputs:pointCount	int	0	Y	Number of points being referred to in the vertex indices attribute. This is only used if ‘computeDistances’ is false, otherwise this is overridden by the element count of the attribute specified by ‘nameOfPositionsInputAttribute’.
inputs:removeDuplicates	bool	True	Y	When enabled, each neighbor of a point will be counted only once, instead of once per edge that connects the point to the neighbor.
	__default	true
inputs:treatEdgesAsOneWay	bool	False	Y	When enabled, if a face has an edge from A to B, B will be considered a neighbor of A, but A will not be considered a neighbor of B. This can be useful as part of identifying unshared edges or inconsistent face winding order.
	__default	false
inputs:treatFacesAsCurves	bool	False	Y	When enabled, the input faces will be treated as curves, instead of closed polygons, i.e. no edge from the last vertex of each face to the first vertex of that face will be counted.
	__default	false

omni.graph.examples.cpp.Adjacency Outputs

Name	Type	Default	Required?	Descripton
outputs:mesh	bundle	None	Y	A copy of the input ‘mesh’ with the computed attributes added, as specified above.