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// Copyright ©2018 The Gonum Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package dot_test
import (
"fmt"
"gonum.org/v1/gonum/graph"
"gonum.org/v1/gonum/graph/encoding/dot"
"gonum.org/v1/gonum/graph/simple"
)
type edgeWithPorts struct {
simple.Edge
fromPort, toPort string
}
func (e edgeWithPorts) ReversedEdge() graph.Edge {
e.F, e.T = e.T, e.F
e.fromPort, e.toPort = e.toPort, e.fromPort
return e
}
func (e edgeWithPorts) FromPort() (string, string) {
return e.fromPort, ""
}
func (e edgeWithPorts) ToPort() (string, string) {
return e.toPort, ""
}
func ExamplePorter() {
g := simple.NewUndirectedGraph()
g.SetEdge(edgeWithPorts{
Edge: simple.Edge{F: simple.Node(1), T: simple.Node(0)},
fromPort: "p1",
toPort: "p2",
})
result, _ := dot.Marshal(g, "", "", " ")
fmt.Print(string(result))
// Output:
// strict graph {
// // Node definitions.
// 0;
// 1;
//
// // Edge definitions.
// 0:p2 -- 1:p1;
// }
}
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