findlink
Description
finds the link IDs linkIDS
= findlink(graph
,statePairs
)linkIDS
of the state pairs
statePairs
, if they exist in the navGraph
object
graph
.
Examples
Create navGraph
Object with State and Link Tables
Load data for states and links.
load navGraphData.mat
Create state and link tables.
stateTable = table(data.states,data.names,data.numLanes, ... VariableNames=["StateVector","Name","Lanes"]); linkTable = table(data.links,data.linkWt,data.curvature, ... VariableNames=["EndStates","Weight","Curvature"]);
Create a navGraph
object from the state and link tables.
graphObj = navGraph(stateTable,linkTable);
Create a deep copy of the navGraph
object.
graph2 = copy(graphObj)
graph2 = navGraph with properties: States: [8x3 table] Links: [7x3 table] LinkWeightFcn: @nav.algs.distanceEuclidean
Visualize the navGraph
object.
show(graphObj)
Find the link IDs of two state pairs. The function returns the link ID for the state pair ["G","A"]
. However, it returns 0
as the link ID for the state pair ["C","D"]
as the link does not exist in the navGraph
object.
linkIDS = findlink(navGraphObj,["G","A"; "C","D"])
linkIDS = 2×1
5
0
Input Arguments
graph
— Graph object
navGraph
object
Graph object, specified as a navGraph
object.
statePairs
— State pairs
N-by-2 string array | N-by-2 cell array of character vectors | N-by-2 matrix of positive integers
State pairs, specified as pairs of state names or pairs of state IDs.
Specify the pairs of state names as an N-by-2 string array or N-by-2 cell array of character vectors. Specify the pairs of state IDs as an N-by-2 matrix of positive integers. N is the number of state pairs specified.
Data Types: single
| double
| cell
| char
| string
Output Arguments
linkIDS
— Link IDs
column vector of positive integers
Link IDs, returned as a column vector of positive integers. When the function does
not find a specified state pair, the value for the corresponding element in
linkIDS
is 0
.
Data Types: double
Extended Capabilities
C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.
Specify state pairs as numeric array for code generation.
Version History
Introduced in R2023a
See Also
Objects
Functions
findstate
|index2state
|state2index
|successors
|show
|copy
|addstate
|addlink
|rmstate
|rmlink
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