mirror of https://gitee.com/bigwinds/arangodb
1035 lines
42 KiB
Markdown
1035 lines
42 KiB
Markdown
---
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layout: default
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description: This chapter describes various functions on a graph
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---
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Graph Functions
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===============
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This chapter describes [various functions on a graph](graphs.html).
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A lot of these accept a vertex (or edge) example as parameter as defined in the next section.
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Examples will explain the API on the [the city graph](graphs.html#the-city-graph):
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Definition of examples
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----------------------
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{% docublock general_graph_example_description %}
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Get vertices from edges.
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------------------------
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### Get vertex *from* of an edge
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Get the source vertex of an edge
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`graph._fromVertex(edgeId)`
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Returns the vertex defined with the attribute *_from* of the edge with *edgeId* as its *_id*.
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**Parameters**
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* edgeId (required) *_id* attribute of the edge
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**Examples**
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphGetFromVertex
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphGetFromVertex}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("social");
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var any = require("@arangodb").db.relation.any();
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graph._fromVertex("relation/" + any._key);
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~ examples.dropGraph("social");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphGetFromVertex
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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### Get vertex *to* of an edge
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Get the target vertex of an edge
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`graph._toVertex(edgeId)`
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Returns the vertex defined with the attribute *_to* of the edge with *edgeId* as its *_id*.
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**Parameters**
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* edgeId (required) *_id* attribute of the edge
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**Examples**
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphGetToVertex
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphGetToVertex}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("social");
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var any = require("@arangodb").db.relation.any();
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graph._toVertex("relation/" + any._key);
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~ examples.dropGraph("social");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphGetToVertex
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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_neighbors
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----------
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Get all neighbors of the vertices defined by the example
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`graph._neighbors(vertexExample, options)`
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The function accepts an id, an example, a list of examples or even an empty
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example as parameter for vertexExample.
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The complexity of this method is **O(n\*m^x)** with *n* being the vertices defined by the
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parameter vertexExamplex, *m* the average amount of neighbors and *x* the maximal depths.
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Hence the default call would have a complexity of **O(n\*m)**;
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**Parameters**
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- vertexExample (optional) See [Definition of examples](#definition-of-examples)
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- options (optional) An object defining further options. Can have the following values:
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- *direction*: The direction of the edges. Possible values are *outbound*, *inbound* and *any* (default).
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- *edgeExamples*: Filter the edges, see [Definition of examples](#definition-of-examples)
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- *neighborExamples*: Filter the neighbor vertices, see [Definition of examples](#definition-of-examples)
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- *edgeCollectionRestriction* : One or a list of edge-collection names that should be
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considered to be on the path.
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- *vertexCollectionRestriction* : One or a list of vertex-collection names that should be
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considered on the intermediate vertex steps.
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- *minDepth*: Defines the minimal number of intermediate steps to neighbors (default is 1).
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- *maxDepth*: Defines the maximal number of intermediate steps to neighbors (default is 1).
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**Examples**
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A route planner example, all neighbors of capitals.
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleNeighbors1
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleNeighbors1}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("routeplanner");
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graph._neighbors({isCapital : true});
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleNeighbors1
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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A route planner example, all outbound neighbors of Hamburg.
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleNeighbors2
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleNeighbors2}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("routeplanner");
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graph._neighbors('germanCity/Hamburg', {direction : 'outbound', maxDepth : 2});
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleNeighbors2
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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_commonNeighbors
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----------------
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Get all common neighbors of the vertices defined by the examples.
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`graph._commonNeighbors(vertex1Example, vertex2Examples, optionsVertex1, optionsVertex2)`
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This function returns the intersection of *graph_module._neighbors(vertex1Example, optionsVertex1)*
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and *graph_module._neighbors(vertex2Example, optionsVertex2)*.
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For parameter documentation see [_neighbors](#_neighbors).
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The complexity of this method is **O(n\*m^x)** with *n* being the maximal amount of vertices
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defined by the parameters vertexExamples, *m* the average amount of neighbors and *x* the
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maximal depths.
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Hence the default call would have a complexity of **O(n\*m)**;
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**Examples**
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A route planner example, all common neighbors of capitals.
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleCommonNeighbors1
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleCommonNeighbors1}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("routeplanner");
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graph._commonNeighbors({isCapital : true}, {isCapital : true});
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleCommonNeighbors1
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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A route planner example, all common outbound neighbors of Hamburg with any other location
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which have a maximal depth of 2 :
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleCommonNeighbors2
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleCommonNeighbors2}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("routeplanner");
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| graph._commonNeighbors(
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| 'germanCity/Hamburg',
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| {},
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| {direction : 'outbound', maxDepth : 2},
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{direction : 'outbound', maxDepth : 2});
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleCommonNeighbors2
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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_countCommonNeighbors
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---------------------
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Get the amount of common neighbors of the vertices defined by the examples.
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`graph._countCommonNeighbors(vertex1Example, vertex2Examples, optionsVertex1, optionsVertex2)`
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Similar to [_commonNeighbors](#_commonneighbors) but returns count instead of the elements.
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**Examples**
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A route planner example, all common neighbors of capitals.
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleCommonNeighborsAmount1
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleCommonNeighborsAmount1}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("routeplanner");
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var example = { isCapital: true };
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var options = { includeData: true };
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graph._countCommonNeighbors(example, example, options, options);
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleCommonNeighborsAmount1
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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A route planner example, all common outbound neighbors of Hamburg with any other location
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which have a maximal depth of 2 :
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleCommonNeighborsAmount2
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleCommonNeighborsAmount2}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("routeplanner");
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var options = { direction: 'outbound', maxDepth: 2, includeData: true };
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graph._countCommonNeighbors('germanCity/Hamburg', {}, options, options);
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleCommonNeighborsAmount2
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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_commonProperties
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-----------------
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Get the vertices of the graph that share common properties.
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`graph._commonProperties(vertex1Example, vertex2Examples, options)`
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The function accepts an id, an example, a list of examples or even an empty
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example as parameter for vertex1Example and vertex2Example.
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The complexity of this method is **O(n)** with *n* being the maximal amount of vertices
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defined by the parameters vertexExamples.
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**Parameters**
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* vertex1Examples (optional) Filter the set of source vertices, see [Definition of examples](#definition-of-examples)
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- vertex2Examples (optional) Filter the set of vertices compared to, see [Definition of examples](#definition-of-examples)
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- options (optional) An object defining further options. Can have the following values:
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- *vertex1CollectionRestriction* : One or a list of vertex-collection names that should be
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searched for source vertices.
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- *vertex2CollectionRestriction* : One or a list of vertex-collection names that should be
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searched for compare vertices.
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- *ignoreProperties* : One or a list of attribute names of a document that should be ignored.
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**Examples**
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A route planner example, all locations with the same properties:
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleProperties1
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleProperties1}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("routeplanner");
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graph._commonProperties({}, {});
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleProperties1
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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A route planner example, all cities which share same properties except for population.
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleProperties2
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleProperties2}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("routeplanner");
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graph._commonProperties({}, {}, {ignoreProperties: 'population'});
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleProperties2
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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_countCommonProperties
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----------------------
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Get the amount of vertices of the graph that share common properties.
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`graph._countCommonProperties(vertex1Example, vertex2Examples, options)`
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Similar to [_commonProperties](#_commonproperties) but returns count instead of
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the objects.
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**Examples**
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A route planner example, all locations with the same properties:
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleAmountProperties1
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleAmountProperties1}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("routeplanner");
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graph._countCommonProperties({}, {});
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleAmountProperties1
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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A route planner example, all German cities which share same properties except for population.
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleAmountProperties2
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleAmountProperties2}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var graph = examples.loadGraph("routeplanner");
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| graph._countCommonProperties({}, {}, {vertex1CollectionRestriction : 'germanCity',
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vertex2CollectionRestriction : 'germanCity' ,ignoreProperties: 'population'});
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleAmountProperties2
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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_paths
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------
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The _paths function returns all paths of a graph.
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`graph._paths(options)`
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This function determines all available paths in a graph.
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The complexity of this method is **O(n\*n\*m)** with *n* being the amount of vertices in
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the graph and *m* the average amount of connected edges;
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**Parameters**
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- options (optional) An object containing options, see below:
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- *direction*: The direction of the edges. Possible values are *any*,
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*inbound* and *outbound* (default).
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- *followCycles* (optional): If set to *true* the query follows cycles in the graph,
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default is false.
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- *minLength* (optional): Defines the minimal length a path must
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have to be returned (default is 0).
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- *maxLength* (optional): Defines the maximal length a path must
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have to be returned (default is 10).
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**Examples**
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Return all paths of the graph "social":
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModulePaths1
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModulePaths1}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var g = examples.loadGraph("social");
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g._paths();
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~ examples.dropGraph("social");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModulePaths1
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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Return all inbound paths of the graph "social" with a maximal
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length of 1 and a minimal length of 2:
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModulePaths2
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModulePaths2}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var g = examples.loadGraph("social");
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g._paths({direction : 'inbound', minLength : 1, maxLength : 2});
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~ examples.dropGraph("social");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModulePaths2
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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_shortestPath
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-------------
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The _shortestPath function returns all shortest paths of a graph.
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`graph._shortestPath(startVertexExample, endVertexExample, options)`
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This function determines all shortest paths in a graph.
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The function accepts an id, an example, a list of examples
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or even an empty example as parameter for
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start and end vertex.
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The length of a path is by default the amount of edges from one start vertex to
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an end vertex. The option weight allows the user to define an edge attribute
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representing the length.
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**Parameters**
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- startVertexExample (optional) An example for the desired start Vertices (see [Definition of examples](#definition-of-examples)).
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- endVertexExample (optional) An example for the desired end Vertices (see [Definition of examples](#definition-of-examples)).
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- options (optional) An object containing options, see below:
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- *direction*: The direction of the edges as a string.
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Possible values are *outbound*, *inbound* and *any* (default).
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- *edgeCollectionRestriction*: One or multiple edge
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collection names. Only edges from these collections will be considered for the path.
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- *startVertexCollectionRestriction*: One or multiple vertex
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collection names. Only vertices from these collections will be considered as
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start vertex of a path.
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- *endVertexCollectionRestriction*: One or multiple vertex
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collection names. Only vertices from these collections will be considered as
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end vertex of a path.
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- *weight*: The name of the attribute of
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the edges containing the length as a string.
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- *defaultWeight*: Only used with the option *weight*.
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If an edge does not have the attribute named as defined in option *weight* this default
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is used as length.
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If no default is supplied the default would be positive Infinity so the path could
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not be calculated.
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**Examples**
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A route planner example, shortest path from all german to all french cities:
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleShortestPaths1
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleShortestPaths1}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var g = examples.loadGraph("routeplanner");
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| g._shortestPath({}, {}, {weight : 'distance', endVertexCollectionRestriction : 'frenchCity',
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startVertexCollectionRestriction : 'germanCity'});
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleShortestPaths1
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{% endarangoshexample %}
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{% include arangoshexample.html id=examplevar script=script result=result %}
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A route planner example, shortest path from Hamburg and Cologne to Lyon:
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{% arangoshexample examplevar="examplevar" script="script" result="result" %}
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@startDocuBlockInline generalGraphModuleShortestPaths2
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@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleShortestPaths2}
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var examples = require("@arangodb/graph-examples/example-graph.js");
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var g = examples.loadGraph("routeplanner");
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| g._shortestPath([{_id: 'germanCity/Cologne'},{_id: 'germanCity/Munich'}], 'frenchCity/Lyon',
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{weight : 'distance'});
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~ examples.dropGraph("routeplanner");
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@END_EXAMPLE_ARANGOSH_OUTPUT
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@endDocuBlock generalGraphModuleShortestPaths2
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
|
|
|
|
_distanceTo
|
|
-----------
|
|
|
|
|
|
|
|
The _distanceTo function returns all paths and there distance within a graph.
|
|
|
|
`graph._distanceTo(startVertexExample, endVertexExample, options)`
|
|
|
|
This function is a wrapper of [graph._shortestPath](#_shortestpath).
|
|
It does not return the actual path but only the distance between two vertices.
|
|
|
|
|
|
**Examples**
|
|
|
|
|
|
A route planner example, shortest distance from all german to all french cities:
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleDistanceTo1
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleDistanceTo1}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var g = examples.loadGraph("routeplanner");
|
|
| g._distanceTo({}, {}, {weight : 'distance', endVertexCollectionRestriction : 'frenchCity',
|
|
startVertexCollectionRestriction : 'germanCity'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleDistanceTo1
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, shortest distance from Hamburg and Cologne to Lyon:
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleDistanceTo2
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleDistanceTo2}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var g = examples.loadGraph("routeplanner");
|
|
| g._distanceTo([{_id: 'germanCity/Cologne'},{_id: 'germanCity/Munich'}], 'frenchCity/Lyon',
|
|
{weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleDistanceTo2
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
|
|
|
|
_absoluteEccentricity
|
|
---------------------
|
|
|
|
|
|
|
|
Get the
|
|
[eccentricity](http://en.wikipedia.org/wiki/Distance_%28graph_theory%29){:target="_blank"}
|
|
of the vertices defined by the examples.
|
|
|
|
`graph._absoluteEccentricity(vertexExample, options)`
|
|
|
|
The function accepts an id, an example, a list of examples or even an empty
|
|
example as parameter for vertexExample.
|
|
|
|
|
|
**Parameters**
|
|
|
|
- vertexExample (optional) Filter the vertices, see [Definition of examples](#definition-of-examples)
|
|
- options (optional) An object defining further options. Can have the following values:
|
|
- *direction*: The direction of the edges. Possible values are *outbound*, *inbound* and *any* (default).
|
|
- *edgeCollectionRestriction* : One or a list of edge-collection names that should be
|
|
considered to be on the path.
|
|
- *startVertexCollectionRestriction* : One or a list of vertex-collection names that should be
|
|
considered for source vertices.
|
|
- *endVertexCollectionRestriction* : One or a list of vertex-collection names that should be
|
|
considered for target vertices.
|
|
- *weight*: The name of the attribute of the edges containing the weight.
|
|
- *defaultWeight*: Only used with the option *weight*.
|
|
If an edge does not have the attribute named as defined in option *weight* this default
|
|
is used as weight.
|
|
If no default is supplied the default would be positive infinity so the path and
|
|
hence the eccentricity can not be calculated.
|
|
|
|
|
|
**Examples**
|
|
|
|
|
|
A route planner example, the absolute eccentricity of all locations.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleAbsEccentricity1
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleAbsEccentricity1}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._absoluteEccentricity({});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleAbsEccentricity1
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the absolute eccentricity of all locations.
|
|
This considers the actual distances.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleAbsEccentricity2
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleAbsEccentricity2}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._absoluteEccentricity({}, {weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleAbsEccentricity2
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the absolute eccentricity of all cities regarding only
|
|
outbound paths.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleAbsEccentricity3
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleAbsEccentricity3}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
| graph._absoluteEccentricity({}, {startVertexCollectionRestriction : 'germanCity',
|
|
direction : 'outbound', weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleAbsEccentricity3
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
|
|
|
|
_eccentricity
|
|
-------------
|
|
|
|
|
|
|
|
Get the normalized
|
|
[eccentricity](http://en.wikipedia.org/wiki/Distance_%28graph_theory%29){:target="_blank"}
|
|
of the vertices defined by the examples.
|
|
|
|
`graph._eccentricity(vertexExample, options)`
|
|
|
|
Similar to [_absoluteEccentricity](#_absoluteeccentricity) but returns a normalized result.
|
|
|
|
|
|
**Examples**
|
|
|
|
|
|
A route planner example, the eccentricity of all locations.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleEccentricity2
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleEccentricity2}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._eccentricity();
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleEccentricity2
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the weighted eccentricity.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleEccentricity3
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleEccentricity3}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._eccentricity({weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleEccentricity3
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
|
|
|
|
_absoluteCloseness
|
|
------------------
|
|
|
|
|
|
|
|
Get the
|
|
[closeness](http://en.wikipedia.org/wiki/Centrality#Closeness_centrality){:target="_blank"}
|
|
of the vertices defined by the examples.
|
|
|
|
`graph._absoluteCloseness(vertexExample, options)`
|
|
|
|
The function accepts an id, an example, a list of examples or even an empty
|
|
example as parameter for *vertexExample*.
|
|
|
|
**Parameters**
|
|
|
|
- vertexExample (optional) Filter the vertices, see [Definition of examples](#definition-of-examples)
|
|
- options (optional) An object defining further options. Can have the following values:
|
|
- *direction*: The direction of the edges. Possible values are *outbound*, *inbound* and *any* (default).
|
|
- *edgeCollectionRestriction* : One or a list of edge-collection names that should be
|
|
considered to be on the path.
|
|
- *startVertexCollectionRestriction* : One or a list of vertex-collection names that should be
|
|
considered for source vertices.
|
|
- *endVertexCollectionRestriction* : One or a list of vertex-collection names that should be
|
|
considered for target vertices.
|
|
- *weight*: The name of the attribute of the edges containing the weight.
|
|
- *defaultWeight*: Only used with the option *weight*.
|
|
If an edge does not have the attribute named as defined in option *weight* this default
|
|
is used as weight.
|
|
If no default is supplied the default would be positive infinity so the path and
|
|
hence the closeness can not be calculated.
|
|
|
|
|
|
**Examples**
|
|
|
|
|
|
A route planner example, the absolute closeness of all locations.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleAbsCloseness1
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleAbsCloseness1}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._absoluteCloseness({});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleAbsCloseness1
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the absolute closeness of all locations.
|
|
This considers the actual distances.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleAbsCloseness2
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleAbsCloseness2}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._absoluteCloseness({}, {weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleAbsCloseness2
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the absolute closeness of all German Cities regarding only
|
|
outbound paths.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleAbsCloseness3
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleAbsCloseness3}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
| graph._absoluteCloseness({}, {startVertexCollectionRestriction : 'germanCity',
|
|
direction : 'outbound', weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleAbsCloseness3
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
|
|
|
|
_closeness
|
|
----------
|
|
|
|
|
|
|
|
Get the normalized
|
|
[closeness](http://en.wikipedia.org/wiki/Centrality#Closeness_centrality){:target="_blank"}
|
|
of graphs vertices.
|
|
|
|
`graph._closeness(options)`
|
|
|
|
Similar to [_absoluteCloseness](#_absolutecloseness) but returns a normalized value.
|
|
|
|
|
|
**Examples**
|
|
|
|
|
|
A route planner example, the normalized closeness of all locations.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleCloseness1
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleCloseness1}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._closeness();
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleCloseness1
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the closeness of all locations.
|
|
This considers the actual distances.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleCloseness2
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleCloseness2}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._closeness({weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleCloseness2
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the closeness of all cities regarding only
|
|
outbound paths.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleCloseness3
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleCloseness3}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._closeness({direction : 'outbound', weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleCloseness3
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
|
|
|
|
_absoluteBetweenness
|
|
--------------------
|
|
|
|
|
|
|
|
Get the
|
|
[betweenness](http://en.wikipedia.org/wiki/Betweenness_centrality){:target="_blank"}
|
|
of all vertices in the graph.
|
|
|
|
`graph._absoluteBetweenness(vertexExample, options)`
|
|
|
|
|
|
**Parameters**
|
|
|
|
- vertexExample (optional) Filter the vertices, see [Definition of examples](#definition-of-examples)
|
|
- options (optional) An object defining further options. Can have the following values:
|
|
- *direction*: The direction of the edges. Possible values are *outbound*, *inbound* and *any* (default).
|
|
- *weight*: The name of the attribute of the edges containing the weight.
|
|
- *defaultWeight*: Only used with the option *weight*.
|
|
If an edge does not have the attribute named as defined in option *weight* this default
|
|
is used as weight.
|
|
If no default is supplied the default would be positive infinity so the path and
|
|
hence the betweenness can not be calculated.
|
|
|
|
|
|
**Examples**
|
|
|
|
|
|
A route planner example, the absolute betweenness of all locations.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleAbsBetweenness1
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleAbsBetweenness1}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._absoluteBetweenness({});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleAbsBetweenness1
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the absolute betweenness of all locations.
|
|
This considers the actual distances.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleAbsBetweenness2
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleAbsBetweenness2}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._absoluteBetweenness({weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleAbsBetweenness2
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the absolute betweenness of all cities regarding only
|
|
outbound paths.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleAbsBetweenness3
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleAbsBetweenness3}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._absoluteBetweenness({direction : 'outbound', weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleAbsBetweenness3
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
|
|
|
|
_betweenness
|
|
------------
|
|
|
|
|
|
|
|
Get the normalized
|
|
[betweenness](http://en.wikipedia.org/wiki/Betweenness_centrality){:target="_blank"}
|
|
of graphs vertices.
|
|
|
|
`graph_module._betweenness(options)`
|
|
|
|
Similar to [_absoluteBetweenness](#_absolutebetweenness) but returns normalized values.
|
|
|
|
|
|
**Examples**
|
|
|
|
|
|
A route planner example, the betweenness of all locations.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleBetweenness1
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleBetweenness1}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._betweenness();
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleBetweenness1
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the betweenness of all locations.
|
|
This considers the actual distances.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleBetweenness2
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleBetweenness2}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._betweenness({weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleBetweenness2
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the betweenness of all cities regarding only
|
|
outbound paths.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleBetweenness3
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleBetweenness3}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._betweenness({direction : 'outbound', weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleBetweenness3
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
|
|
|
|
_radius
|
|
-------
|
|
|
|
|
|
|
|
Get the
|
|
[radius](http://en.wikipedia.org/wiki/Eccentricity_%28graph_theory%29){:target="_blank"}
|
|
of a graph.
|
|
|
|
`
|
|
|
|
|
|
**Parameters**
|
|
|
|
- options (optional) An object defining further options. Can have the following values:
|
|
- *direction*: The direction of the edges. Possible values are *outbound*, *inbound* and *any* (default).
|
|
- *weight*: The name of the attribute of the edges containing the weight.
|
|
- *defaultWeight*: Only used with the option *weight*.
|
|
If an edge does not have the attribute named as defined in option *weight* this default
|
|
is used as weight.
|
|
If no default is supplied the default would be positive infinity so the path and
|
|
hence the radius can not be calculated.
|
|
|
|
|
|
**Examples**
|
|
|
|
|
|
A route planner example, the radius of the graph.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleRadius1
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleRadius1}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._radius();
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleRadius1
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the radius of the graph.
|
|
This considers the actual distances.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleRadius2
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleRadius2}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._radius({weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleRadius2
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the radius of the graph regarding only
|
|
outbound paths.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleRadius3
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleRadius3}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._radius({direction : 'outbound', weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleRadius3
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
|
|
|
|
_diameter
|
|
---------
|
|
|
|
|
|
|
|
Get the
|
|
[diameter](http://en.wikipedia.org/wiki/Eccentricity_%28graph_theory%29){:target="_blank"}
|
|
of a graph.
|
|
|
|
`graph._diameter(graphName, options)`
|
|
|
|
|
|
**Parameters**
|
|
|
|
- options (optional) An object defining further options. Can have the following values:
|
|
- *direction*: The direction of the edges. Possible values are *outbound*, *inbound* and *any* (default).
|
|
- *weight*: The name of the attribute of the edges containing the weight.
|
|
- *defaultWeight*: Only used with the option *weight*.
|
|
If an edge does not have the attribute named as defined in option *weight* this default
|
|
is used as weight.
|
|
If no default is supplied the default would be positive infinity so the path and
|
|
hence the radius can not be calculated.
|
|
|
|
|
|
**Examples**
|
|
|
|
|
|
A route planner example, the diameter of the graph.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleDiameter1
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleDiameter1}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._diameter();
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleDiameter1
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the diameter of the graph.
|
|
This considers the actual distances.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleDiameter2
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleDiameter2}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._diameter({weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleDiameter2
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %}
|
|
A route planner example, the diameter of the graph regarding only
|
|
outbound paths.
|
|
{% arangoshexample examplevar="examplevar" script="script" result="result" %}
|
|
@startDocuBlockInline generalGraphModuleDiameter3
|
|
@EXAMPLE_ARANGOSH_OUTPUT{generalGraphModuleDiameter3}
|
|
var examples = require("@arangodb/graph-examples/example-graph.js");
|
|
var graph = examples.loadGraph("routeplanner");
|
|
graph._diameter({direction : 'outbound', weight : 'distance'});
|
|
~ examples.dropGraph("routeplanner");
|
|
@END_EXAMPLE_ARANGOSH_OUTPUT
|
|
@endDocuBlock generalGraphModuleDiameter3
|
|
{% endarangoshexample %}
|
|
{% include arangoshexample.html id=examplevar script=script result=result %} |