Initial commit:
Added framework to generate DOT and png files of character map chart from data folder. Added all figures in the 1-2 chapters. Added font file SimSum for render chart
This commit is contained in:
@@ -0,0 +1,225 @@
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package batch
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"xyj-figures/pkg/entity"
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"xyj-figures/pkg/relationship"
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findfont "github.com/flopp/go-findfont"
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graphviz "github.com/goccy/go-graphviz"
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"github.com/goccy/go-graphviz/cgraph"
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"github.com/golang/freetype/truetype"
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log "github.com/sirupsen/logrus"
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"golang.org/x/image/font"
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)
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const (
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CLUSTER_PREFIX = "cluster_"
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)
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func LoadFolder(path string) ([]entity.Entity, []relationship.Relationship, error) {
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es := []entity.Entity{}
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rs := []relationship.Relationship{}
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errs := []string{}
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// Triverse all files in path and load all entities and relationships
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err := filepath.Walk(path, func(subpath string, info os.FileInfo, err error) error {
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if err != nil {
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errs = append(errs, err.Error())
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return nil
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}
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if !info.IsDir() {
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e, err := entity.Load(subpath)
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if err != nil {
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errs = append(errs, err.Error())
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return nil
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}
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es = append(es, *e)
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rs = append(rs, e.Details.(entity.EntityDetails).GetRelationships()...)
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}
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return nil
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})
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if len(errs) > 0 {
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return es, rs, fmt.Errorf("multiple errors: %v", strings.Join(errs, "; "))
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}
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return es, rs, err
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}
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// DistillData takes loaded data and do all needed optimizations and extract only needed info for maps
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func DistillData(es []entity.Entity, rs []relationship.Relationship) ([]entity.Entity, []relationship.Relationship, error) {
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// Create a set of all entities, including characters and every members
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// TODO: Duplicated name
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nodes := map[string]entity.Entity{}
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edges := map[string]relationship.Relationship{}
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for _, e := range es {
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switch e.Type {
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case entity.EntityTypeCharacter:
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if val, ok := nodes[e.Details.(entity.Character).Name]; ok {
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if err := val.Merge(e); err != nil {
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log.Warnf("failed to merge: %v", err)
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}
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continue
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}
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nodes[e.Details.(entity.Character).Name] = e
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case entity.EntityTypeGroup:
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nodes[e.Details.(entity.Group).Name] = e
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for _, m := range e.Details.(entity.Group).Members {
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nodes[m] = entity.Entity{
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Schema: "v1",
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Type: entity.EntityTypeCharacter,
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Details: entity.Character{
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Name: m,
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},
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}
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}
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}
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}
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for _, r := range rs {
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key1, key2 := r.GetKey()
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val1, ok1 := edges[key1]
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val2, ok2 := edges[key2]
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// Both keys don't exist
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if !ok1 && !ok2 {
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edges[key1] = r
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continue
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}
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// Logs all unexpected edges
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if ok1 && !r.IsSame(val1) {
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log.Warningf("Found ambigious edges, existing: %+v, new: %+v", val1, r)
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}
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if ok2 && !r.IsSame(val2) {
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log.Warningf("Found ambigious edges, existing: %+v, new: %+v", val2, r)
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}
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}
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retns := make([]entity.Entity, 0, len(nodes))
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for _, n := range nodes {
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retns = append(retns, n)
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}
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retes := make([]relationship.Relationship, 0, len(edges))
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for _, v := range edges {
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retes = append(retes, v)
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}
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return retns, retes, nil
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}
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// Save distilled info into DOT type files
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func Save(path string, ents []entity.Entity, rels []relationship.Relationship) error {
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g := graphviz.New()
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g.SetLayout(graphviz.TWOPI)
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useSystemFont(g, "SimSum.ttc")
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rootgraph, err := g.Graph()
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rootgraph.SafeSet("fontname", "NSimSun", "Times-Roman")
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if err != nil {
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return fmt.Errorf("failed to create graph: %v", err)
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}
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defer func() {
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if err := rootgraph.Close(); err != nil {
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log.Errorf("failed to close graph: %v", err)
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}
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g.Close()
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}()
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nodesPtr := map[string]*cgraph.Node{}
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subGraphPtr := map[string]*cgraph.Graph{}
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nodeGraphMap := map[string]string{}
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for _, e := range ents {
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if e.Type == entity.EntityTypeGroup {
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subGraph := rootgraph.SubGraph(CLUSTER_PREFIX+e.Details.(entity.Group).Name, 1)
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subGraph.SetLabel(e.Details.(entity.Group).Name)
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// subGraph.SafeSet("fontname", "NSimSun", "Times-Roman")
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subGraphPtr[e.Details.(entity.Group).Name] = subGraph
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// Record all members
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for _, m := range e.Details.(entity.Group).Members {
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nodeGraphMap[m] = e.Details.(entity.Group).Name
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}
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}
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}
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fmt.Println(subGraphPtr)
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fmt.Println(nodeGraphMap)
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for _, e := range ents {
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if e.Type == entity.EntityTypeCharacter {
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log.Debugf("entity: %+v", e)
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if group, ok := nodeGraphMap[e.Details.(entity.Character).Name]; ok {
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ptr, ok := subGraphPtr[group]
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if !ok {
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log.Debugf("can't find sub graph %s", group)
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continue
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}
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if ptr == nil {
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log.Debugf("sub graph %s is nil", group)
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continue
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}
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n, err := ptr.CreateNode(e.Details.(entity.Character).Name)
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if err != nil {
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log.Errorf("failed to create node in sub graph %s: %v", group, err)
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continue
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}
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nodesPtr[e.Details.(entity.Character).Name] = n
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continue
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}
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node, err := rootgraph.CreateNode(e.Details.(entity.Character).Name)
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if err != nil {
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log.Errorf("failed to create node: %v", err)
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continue
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}
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nodesPtr[e.Details.(entity.Character).Name] = node
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continue
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}
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}
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fmt.Println(nodesPtr)
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for _, r := range rels {
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key, _ := r.GetKey()
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srcPtr := nodesPtr[r.Src]
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dstPtr := nodesPtr[r.Dst]
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fmt.Printf("src: %s, dst: %s\n", r.Src, r.Dst)
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e, err := rootgraph.CreateEdge(key, srcPtr, dstPtr)
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if err != nil {
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log.Errorf("failed to create edge: %v", err)
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continue
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}
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e.SetLabel(r.Description)
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e.SafeSet("fontname", "NSimSun", "Times-Roman")
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e.SafeSet("fontsize", "12", "10")
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if r.Bidirection {
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e.SetDir(cgraph.NoneDir)
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}
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}
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if err := g.RenderFilename(rootgraph, "dot", path); err != nil {
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log.Fatal(err)
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}
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if err := g.RenderFilename(rootgraph, graphviz.PNG, path+".png"); err != nil {
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return fmt.Errorf("failed to save graph to disk: %v", err)
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}
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return nil
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}
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func useSystemFont(g *graphviz.Graphviz, name string) {
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fontPath, err := findfont.Find(name)
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if err != nil {
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panic(err)
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}
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fontData, err := os.ReadFile(fontPath)
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if err != nil {
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panic(err)
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}
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ft, err := truetype.Parse(fontData)
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if err != nil {
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panic(err)
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}
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g.SetFontFace(func(size float64) (font.Face, error) {
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opt := &truetype.Options{
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Size: size,
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}
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return truetype.NewFace(ft, opt), nil
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})
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}
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