diff --git a/src/Grafoscopio/GrafoscopioNode.class.st b/src/Grafoscopio/GrafoscopioNode.class.st
index 32861ec..efe2ead 100644
--- a/src/Grafoscopio/GrafoscopioNode.class.st
+++ b/src/Grafoscopio/GrafoscopioNode.class.st
@@ -917,6 +917,18 @@ GrafoscopioNode >> removeLastNode [
 	
 ]
 
+{ #category : #utility }
+GrafoscopioNode >> removeLeadingLineNumbersSized: anInteger [
+	| cleanBody |
+	cleanBody := ''.
+	self body lines do: [ :line | | cleanLine |
+		line size >= anInteger 
+			ifTrue: [ cleanLine := line copyFrom: anInteger to: line size. ]
+			ifFalse: [ cleanLine := '' ].
+		cleanBody := cleanBody, cleanLine, String cr  ].
+	self body: cleanBody asString.
+]
+
 { #category : #'add/remove nodes' }
 GrafoscopioNode >> removeNode: aNode [
 	(self children includes: aNode)
diff --git a/src/Grafoscopio/GrafoscopioNodeTest.class.st b/src/Grafoscopio/GrafoscopioNodeTest.class.st
index 1d7da93..cfc578e 100644
--- a/src/Grafoscopio/GrafoscopioNodeTest.class.st
+++ b/src/Grafoscopio/GrafoscopioNodeTest.class.st
@@ -83,6 +83,39 @@ GrafoscopioNodeTest >> testPromoteNode [
 	
 ]
 
+{ #category : #'tests-utility' }
+GrafoscopioNodeTest >> testRemoveLeadingLineNumbersSized [
+	| copiedCode testNode |
+	copiedCode := '
+ 1var tree = d3.layout.tree()
+ 2    .sort(null)
+ 3    .size([size.height, size.width - maxLabelLength*options.fontSize])
+ 4    .children(function(d)
+ 5    {
+ 6        return (!d.contents || d.contents.length === 0) ? null : d.contents;
+ 7    });
+ 8
+ 9var nodes = tree.nodes(treeData);
+10var links = tree.links(nodes);
+11  '.
+	testNode := GrafoscopioNode new
+		body: copiedCode.
+	testNode removeLeadingLineNumbersSized: 3.
+	self assert: testNode body equals: '
+var tree = d3.layout.tree()
+    .sort(null)
+    .size([size.height, size.width - maxLabelLength*options.fontSize])
+    .children(function(d)
+    {
+        return (!d.contents || d.contents.length === 0) ? null : d.contents;
+    });
+
+var nodes = tree.nodes(treeData);
+var links = tree.links(nodes);
+  
+'
+]
+
 { #category : #tests }
 GrafoscopioNodeTest >> testRemovingChildren [
 	| tree orig | 
diff --git a/src/Grafoscopio/MindMap.class.st b/src/Grafoscopio/MindMap.class.st
new file mode 100644
index 0000000..e37f9e0
--- /dev/null
+++ b/src/Grafoscopio/MindMap.class.st
@@ -0,0 +1,185 @@
+"
+I provide support for minmapping Freemind import and d3js export.
+In the future I'll plan to support exporting from Grafoscopio notebooks
+to javascript enabled web presentations.
+"
+Class {
+	#name : #MindMap,
+	#superclass : #Object,
+	#category : #'Grafoscopio-Model'
+}
+
+{ #category : #'as yet unclassified' }
+MindMap class >> d3CSS [
+	"I define the nodes geometrical form, their text and the links between them."
+	^ ' .node circle {
+   fill: #fff;
+   stroke: steelblue;
+   stroke-width: 3px;
+ }
+
+ .node text { font: 12px sans-serif; }
+
+ .link {
+   fill: none;
+   stroke: #ccc;
+   stroke-width: 2px;
+ }'
+]
+
+{ #category : #'as yet unclassified' }
+MindMap class >> d3SVGAppender [
+	"I append the SVG working area to the body of our web page and create a group elements 
+	(<g>) that will contain the SVG objects (the nodes, text and links)"
+
+	^'var svg = d3.select("body").append("svg")
+ .attr("width", width + margin.right + margin.left)
+ .attr("height", height + margin.top + margin.bottom)
+  .append("g")
+ .attr("transform", "translate(" + margin.left + "," + margin.top + ")");'
+]
+
+{ #category : #'as yet unclassified' }
+MindMap class >> d3TreeDemoData [
+	"I'm demo data for the tutorial contain at: https://blog.pixelingene.com/2011/07/building-a-tree-diagram-in-d3-js/"
+	^ 'var treeData = {
+    name: "/",
+    contents: [
+        {
+            name: "Applications",
+            contents: [
+                { name: "Mail.app" },
+                { name: "iPhoto.app" },
+                { name: "Keynote.app" },
+                { name: "iTunes.app" },
+                { name: "XCode.app" },
+                { name: "Numbers.app" },
+                { name: "Pages.app" }
+            ]
+        },
+        {
+            name: "System",
+            contents: []
+        },
+        {
+            name: "Library",
+            contents: [
+                {
+                    name: "Application Support",
+                    contents: [
+                        { name: "Adobe" },
+                        { name: "Apple" },
+                        { name: "Google" },
+                        { name: "Microsoft" }
+                    ]
+                },
+                {
+                    name: "Languages",
+                    contents: [
+                        { name: "Ruby" },
+                        { name: "Python" },
+                        { name: "Javascript" },
+                        { name: "C#" }
+                    ]
+                },
+                {
+                    name: "Developer",
+                    contents: [
+                        { name: "4.2" },
+                        { name: "4.3" },
+                        { name: "5.0" },
+                        { name: "Documentation" }
+                    ]
+                }
+            ]
+        },
+        {
+            name: "opt",
+            contents: []
+        },
+        {
+            name: "Users",
+            contents: [
+                { name: "pavanpodila" },
+                { name: "admin" },
+                { name: "test-user" }
+            ]
+        }
+    ]
+};'
+]
+
+{ #category : #'as yet unclassified' }
+MindMap class >> d3TreeDiagramProperties [
+	^ 'var margin = {top: 20, right: 120, bottom: 20, left: 120},
+ width = 960 - margin.right - margin.left,
+ height = 500 - margin.top - margin.bottom;
+ 
+var i = 0;
+
+var tree = d3.layout.tree()
+ .size([height, width]);'
+]
+
+{ #category : #'as yet unclassified' }
+MindMap class >> d3TreeLinksDrawerFunction [
+	^ 'var diagonal = d3.svg.diagonal()
+ .projection(function(d) { return [d.y, d.x]; });'
+]
+
+{ #category : #'as yet unclassified' }
+MindMap class >> d3TreeRootDefinition [
+	"For an excellent explanation on whi this, look at:
+	http://www.d3noob.org/2014/01/tree-diagrams-in-d3js_11.html"
+	^ 'root = treeData[0];'
+]
+
+{ #category : #'as yet unclassified' }
+MindMap class >> d3TreeUpdater [
+	^ 'function update (source) { 
+			// Compute the new tree layout.
+			var nodes = tree.nodes(root).reverse(),
+				links = tree.links(nodes);
+				
+			// Normalize for fixed-depth.
+			nodes.forEach(function(d) { d.y = d.depth * 180 });
+			
+			// Declare the nodes
+			var node = svg.selectAll("g.node")
+				.data(nodes, function(d) { return d.id || (d.id = ++i); });
+			
+			// Enter the nodes.
+			var nodeEnter = node.enter().append("g")
+				.attr("class", "node")
+				.attr("transform", function(d) { 
+				 	return "translate(" + d.y + "," + d.x + ")";});
+					
+			nodeEnter.append("circle")
+				.attr("r",10)
+				.style("fill", "#fff");
+				
+			nodeEnter.append("text")
+				.attr("x", function (d) { 
+				 return d.children || d._children ? -13 : 13; })
+				.attr("dy", ".35em")
+				.attr("text-anchor", function(d) { 
+				 return d.children || d._children ? "end" : "start"; })
+				.text(function(d) { return d.name; })
+				.style ("fill-opacity", 1);
+				
+			// Declare the links
+			var link = svg.selectAll("path.link")
+				.data(links, function(d) { return d.targed.id });
+				
+			// Enter the links.
+			link.enter().insert("path","g")
+				.attr("class", "link")
+				.attr("d", diagonal);
+			
+	}'
+]
+
+{ #category : #'as yet unclassified' }
+MindMap class >> d3TreeUpdaterCaller [
+	^ 'update(root)'
+]