54 lines
1.7 KiB
Go
54 lines
1.7 KiB
Go
|
/*
|
||
|
|
Copyright © 2025 filifa
|
||
|
|
|
||
|
|
This program is free software: you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation, either version 3 of the License, or
|
||
|
|
(at your option) any later version.
|
||
|
|
|
||
|
|
This program is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
GNU General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
package dot
|
||
|
|
|
||
|
|
import (
|
||
|
|
"math"
|
||
|
|
|
||
|
|
"scm.dairydemon.net/filifa/dptdist/cmd/internal/markov"
|
||
|
|
|
||
|
|
"gonum.org/v1/gonum/graph"
|
||
|
|
"gonum.org/v1/gonum/graph/multi"
|
||
|
|
)
|
||
|
|
|
||
|
|
// DOTMarkovChain is a graph representing an absorbing Markov chain.
|
||
|
|
type DOTMarkovChain struct {
|
||
|
|
*markov.AbsorbingMarkovChain
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewDOTMarkovChain returns an absorbing Markov chain with no nodes or
|
||
|
|
// edges.
|
||
|
|
func NewDOTMarkovChain() *DOTMarkovChain {
|
||
|
|
return &DOTMarkovChain{AbsorbingMarkovChain: markov.NewAbsorbingMarkovChain()}
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewLine returns a DOT-aware weighted line.
|
||
|
|
func (g *DOTMarkovChain) NewLine(from, to graph.Node) graph.Line {
|
||
|
|
e := g.AbsorbingMarkovChain.NewWeightedLine(from, to, math.NaN()).(multi.WeightedLine)
|
||
|
|
return &weightedLine{WeightedLine: e}
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewNode returns a DOT-aware Node.
|
||
|
|
func (g *DOTMarkovChain) NewNode() graph.Node {
|
||
|
|
return &Node{Node: g.AbsorbingMarkovChain.NewNode()}
|
||
|
|
}
|
||
|
|
|
||
|
|
// SetLine adds a DOT-aware weighted line to the Markov chain.
|
||
|
|
func (g *DOTMarkovChain) SetLine(e graph.Line) {
|
||
|
|
g.AbsorbingMarkovChain.SetWeightedLine(e.(*weightedLine))
|
||
|
|
}
|