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Action:
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Adds an edge to a graph.
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Filename:
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kern/kern_scm/graph_scm.cxx
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Syntax:
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(graph:add-edge output-graph vertex1 vertex2)
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Arg Types:
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output-graph
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graph
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vertex1
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string | entity
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vertex2
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string | entity
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Returns:
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graph
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Description:
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This extension adds an edge to an existing graph between two existing vertices.
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output-graph specifies a graph. The
output-graph is updated to show the new connection between vertices.
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The
vertex1 and
vertex2 elements are required to be part of the
output-graph. If the
output-graph was created using face entities as the vertices, the
vertex1 and
vertex2 can be either the face entities or their designation as part of the graph.
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Example:
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; graph:add-edge
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; Create a simple example
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(define g1 (graph "me-you us-them"))
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;; g1
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; Add a new edge between two existing vertices
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(define g2 (graph:add-edge g1 "me" "them"))
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;; g2
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