diff --git a/output/dot/dot.go b/output/dot/dot.go
index 348032b0..329c8c14 100644
--- a/output/dot/dot.go
+++ b/output/dot/dot.go
@@ -40,6 +40,7 @@ func (d *Dot) OutputDiagram(wr io.Writer, diag *config.Diagram) error {
 		"RemainNodes":      remain,
 		"GlobalComponents": d.config.GlobalComponents(),
 		"Edges":            config.MergeEdges(nEdges),
+		"HideUnlinked":     false,
 	}); err != nil {
 		return err
 	}
@@ -81,6 +82,7 @@ L:
 		"RemainNodes":      []*config.Node{},
 		"GlobalComponents": []*config.Component{},
 		"Edges":            config.MergeEdges(edges),
+		"HideUnlinked":     false,
 	}); err != nil {
 		return err
 	}
@@ -205,6 +207,7 @@ func (d *Dot) OutputTag(wr io.Writer, t *config.Tag) error {
 		"RemainNodes":      nodes,
 		"GlobalComponents": globalComponents,
 		"Edges":            edges,
+		"HideUnlinked":     true,
 	}); err != nil {
 		return err
 	}
@@ -268,6 +271,7 @@ func (d *Dot) OutputNetwork(wr io.Writer, nw *config.Network) error {
 		"RemainNodes":      nodes,
 		"GlobalComponents": globalComponents,
 		"Edges":            edges,
+		"HideUnlinked":     true,
 	}); err != nil {
 		return err
 	}
diff --git a/output/dot/templates/diagram.dot.tmpl b/output/dot/templates/diagram.dot.tmpl
index 48e990c3..b59e037b 100644
--- a/output/dot/templates/diagram.dot.tmpl
+++ b/output/dot/templates/diagram.dot.tmpl
@@ -2,22 +2,24 @@ digraph ndiag {
   graph [rankdir=TB, layout=dot, fontname="Arial"];
 
 {{ define "cluster" }}
-  subgraph "cluster_{{ . | id }}" {
-    label = "{{ .Layer }}:{{ .Name | unesc }}";
+  subgraph "cluster_{{ .cluster | id }}" {
+    label = "{{ .cluster.Layer }}:{{ .cluster.Name | unesc }}";
     style = "rounded,filled";
     color = "#4B75B933"
     shape = box;
     fontname="Arial";
 
-    {{ range $_, $n := .Nodes }}
+    {{ range $n := .cluster.Nodes }}
     subgraph "cluster_{{ $n | id }}" {
       label = "{{ $n.Name | unesc }} ({{ len $n.RealNodes }})";
       style = "solid,bold,filled";
       color = "#333333"
       fillcolor = "#FFFFFF"
-      {{ range $_, $co := $n.Components }}
+      {{ range $co := $n.Components }}
+      {{ if or (not $.hideUnlinked) (is_linked $co $.edges) }}
       "{{ $co | id }}"[label="{{ $co.Name | unesc }}", style="rounded,filled,bold", color="#FFFFFF", fillcolor="#4B75B9", fontcolor="#FFFFFF" shape=box, fontname="Arial"];
       {{ end }}
+      {{ end }}
 
       {{ $length := len $n.Components }}
       {{ if eq $length 0 }}
@@ -26,27 +28,31 @@ digraph ndiag {
     }
     {{ end }}
 
-    {{ range $_, $co := .Components }}
+    {{ range $co := .cluster.Components }}
+      {{ if or (not $.hideUnlinked) (is_linked $co $.edges) }}
       "{{ $co | id }}"[label="{{ $co.Name | unesc }}", style="rounded,filled,bold", color="#FFFFFF", fillcolor="#4B75B9", fontcolor="#FFFFFF" shape=box, fontname="Arial"];
+      {{ end }}
     {{ end }}
 
-    {{ range .Children }}
-       {{ template "cluster" . }}
+    {{ range $c := .cluster.Children }}
+       {{ template "cluster" (dict "cluster" $c "edges" $.edges "hideUnlinked" $.hideUnlinked) }}
     {{ end }}
   }
 {{ end }}
 
-{{ range .Clusters }}
-  {{ template "cluster" . }}
+{{ range $c := .Clusters }}
+  {{ template "cluster" (dict "cluster" $c "edges" $.Edges "hideUnlinked" $.HideUnlinked) }}
 {{ end }}
 
-{{ range $_, $n := .RemainNodes }}
+{{ range $n := .RemainNodes }}
   subgraph "cluster_{{ $n.Name }}" {
     label = "{{ $n | fullname }} ({{ len $n.RealNodes }})";
     style = "solid,bold";
-    {{ range $_, $co := $n.Components }}
+    {{ range $co := $n.Components }}
+    {{ if or (not $.HideUnlinked) (is_linked $co $.Edges) }}
     "{{$co | id }}"[label="{{ $co.Name | unesc }}", style="rounded,filled,bold", color="#FFFFFF", fillcolor="#4B75B9", fontcolor="#FFFFFF" shape=box, fontname="Arial"];
     {{ end }}
+    {{ end }}
     {{ $length := len $n.Components }}
     {{ if eq $length 0 }}
     "none"[label="", shape=none];
@@ -54,11 +60,13 @@ digraph ndiag {
   }
 {{ end }}
 
-{{ range $_, $co := .GlobalComponents }}
+{{ range $co := .GlobalComponents }}
+{{ if or (not $.HideUnlinked) (is_linked $co $.Edges) }}
 "{{ $co | id }}"[label="{{ $co.Name | unesc }}", style="rounded,bold", shape=box, fontname="Arial"];
 {{ end }}
+{{ end }}
 
-{{ range $_, $e := .Edges }}
+{{ range $e := .Edges }}
 "{{ $e.Src | id }}" -> "{{ $e.Dst | id }}"[arrowhead=normal, arrowtail=normal, headlabel="", taillabel="", color="#33333399", labelfontcolor="#333333", style=bold, fontname="Arial"{{ $e.Attrs | attrs }}];
 {{ end }}
 
diff --git a/output/dot/templates/node.dot.tmpl b/output/dot/templates/node.dot.tmpl
index b648e42e..84dfc99f 100644
--- a/output/dot/templates/node.dot.tmpl
+++ b/output/dot/templates/node.dot.tmpl
@@ -2,22 +2,24 @@ digraph ndiag {
   graph [rankdir=TB, layout=dot, fontname="Arial"];
 
 {{ define "cluster" }}
-  subgraph "cluster_{{ . | id }}" {
-    label = "{{ .Layer }}:{{ .Name | unesc }}";
+  subgraph "cluster_{{ .cluster | id }}" {
+    label = "{{ .cluster.Layer }}:{{ .cluster.Name | unesc }}";
     style = "rounded,filled";
     color = "#4B75B933"
     shape = box;
     fontname="Arial";
 
-    {{ range $_, $n := .Nodes }}
+    {{ range $n := .cluster.Nodes }}
     subgraph "cluster_{{ $n | id }}" {
       label = "{{ $n.Name | unesc }} ({{ len $n.RealNodes }})";
       style = "solid,bold,filled";
       color = "#333333"
       fillcolor = "#FFFFFF"
-      {{ range $_, $co := $n.Components }}
+      {{ range $co := $n.Components }}
+      {{ if is_linked $co $.edges }}
       "{{ $co | id }}"[label="{{ $co.Name | unesc }}", style="rounded,filled,bold", color="#FFFFFF", fillcolor="#4B75B9", fontcolor="#FFFFFF" shape=box, fontname="Arial"];
       {{ end }}
+      {{ end }}
 
       {{ $length := len $n.Components }}
       {{ if eq $length 0 }}
@@ -26,21 +28,23 @@ digraph ndiag {
     }
     {{ end }}
 
-    {{ range $_, $co := .Components }}
+    {{ range $co := .cluster.Components }}
+      {{ if is_linked $co $.edges }}
       "{{ $co | id }}"[label="{{ $co.Name | unesc }}", style="rounded,filled,bold", color="#FFFFFF", fillcolor="#4B75B9", fontcolor="#FFFFFF" shape=box, fontname="Arial"];
+      {{ end }}
     {{ end }}
 
-    {{ range .Children }}
-       {{ template "cluster" . }}
+    {{ range $c := .cluster.Children }}
+       {{ template "cluster" (dict "cluster" $c "edges" $.edges) }}
     {{ end }}
   }
 {{ end }}
 
-{{ range .Clusters }}
-  {{ template "cluster" . }}
+{{ range $c := .Clusters }}
+  {{ template "cluster" (dict "cluster" $c "edges" $.Edges) }}
 {{ end }}
 
-{{ range $_, $n := .RemainNodes }}
+{{ range $n := .RemainNodes }}
   subgraph "cluster_{{ $n.Name }}" {
     label = "{{ $n | fullname }} ({{ len $n.RealNodes }})";
     style = "solid,bold";
@@ -49,9 +53,11 @@ digraph ndiag {
     fontcolor="#666666";
     color="#999999";
     {{ end }}
-    {{ range $_, $co := $n.Components }}
+    {{ range $co := $n.Components }}
+    {{ if or (eq $.MainNodeId ($n | id)) (is_linked $co $.Edges) }}
     "{{$co | id }}"[label="{{ $co.Name | unesc }}", style="rounded,filled,bold", color="#FFFFFF", fillcolor="#4B75B9", fontcolor="#FFFFFF" shape=box, fontname="Arial"];
     {{ end }}
+    {{ end }}
     {{ $length := len $n.Components }}
     {{ if eq $length 0 }}
     "none"[label="", shape=none];
@@ -59,11 +65,13 @@ digraph ndiag {
   }
 {{ end }}
 
-{{ range $_, $co := .GlobalComponents }}
+{{ range $co := .GlobalComponents }}
+{{ if is_linked $co $.Edges }}
 "{{ $co | id }}"[label="{{ $co.Name | unesc }}", style="rounded,bold", shape=box, fontname="Arial"];
 {{ end }}
+{{ end }}
 
-{{ range $_, $e := .Edges }}
+{{ range $e := .Edges }}
 "{{ $e.Src | id }}" -> "{{ $e.Dst | id }}"[arrowhead=normal, arrowtail=normal, headlabel="", taillabel="", color="#33333399", labelfontcolor="#333333", style=bold, fontname="Arial"{{ $e.Attrs | attrs }}];
 {{ end }}
 
diff --git a/output/output.go b/output/output.go
index 1a6a29ff..3133bdc4 100644
--- a/output/output.go
+++ b/output/output.go
@@ -98,6 +98,23 @@ var FuncMap = template.FuncMap{
 		}
 		return out
 	},
+	"dict": func(v ...interface{}) map[string]interface{} {
+		dict := map[string]interface{}{}
+		length := len(v)
+		for i := 0; i < length; i += 2 {
+			key := v[i].(string)
+			dict[key] = v[i+1]
+		}
+		return dict
+	},
+	"is_linked": func(c *config.Component, edges []*config.NEdge) bool {
+		for _, e := range edges {
+			if c.Id() == e.Src.Id() || c.Id() == e.Dst.Id() {
+				return true
+			}
+		}
+		return false
+	},
 }
 
 // componentLink