First commit.

Signed-off-by: Chen Xiao <abigwc@gmail.com>
2026-05-08 14:43:16 +08:00
commit 0b64e2de94
10989 changed files with 2253791 additions and 0 deletions
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+var FDLayoutNode = require('layout-base').FDLayoutNode;
+var IMath = require('layout-base').IMath;
+
+function CoSENode(gm, loc, size, vNode) {
+  FDLayoutNode.call(this, gm, loc, size, vNode);
+}
+
+
+CoSENode.prototype = Object.create(FDLayoutNode.prototype);
+for (var prop in FDLayoutNode) {
+  CoSENode[prop] = FDLayoutNode[prop];
+}
+
+CoSENode.prototype.move = function ()
+{
+  var layout = this.graphManager.getLayout();
+  this.displacementX = layout.coolingFactor *
+          (this.springForceX + this.repulsionForceX + this.gravitationForceX) / this.noOfChildren;
+  this.displacementY = layout.coolingFactor *
+          (this.springForceY + this.repulsionForceY + this.gravitationForceY) / this.noOfChildren;
+
+
+  if (Math.abs(this.displacementX) > layout.coolingFactor * layout.maxNodeDisplacement)
+  {
+    this.displacementX = layout.coolingFactor * layout.maxNodeDisplacement *
+            IMath.sign(this.displacementX);
+  }
+
+  if (Math.abs(this.displacementY) > layout.coolingFactor * layout.maxNodeDisplacement)
+  {
+    this.displacementY = layout.coolingFactor * layout.maxNodeDisplacement *
+            IMath.sign(this.displacementY);
+  }
+
+  // a simple node, just move it
+  if (this.child == null)
+  {
+    this.moveBy(this.displacementX, this.displacementY);
+  }
+  // an empty compound node, again just move it
+  else if (this.child.getNodes().length == 0)
+  {
+    this.moveBy(this.displacementX, this.displacementY);
+  }
+  // non-empty compound node, propogate movement to children as well
+  else
+  {
+    this.propogateDisplacementToChildren(this.displacementX,
+            this.displacementY);
+  }
+
+  layout.totalDisplacement +=
+          Math.abs(this.displacementX) + Math.abs(this.displacementY);
+
+  this.springForceX = 0;
+  this.springForceY = 0;
+  this.repulsionForceX = 0;
+  this.repulsionForceY = 0;
+  this.gravitationForceX = 0;
+  this.gravitationForceY = 0;
+  this.displacementX = 0;
+  this.displacementY = 0;
+};
+
+CoSENode.prototype.propogateDisplacementToChildren = function (dX, dY)
+{
+  var nodes = this.getChild().getNodes();
+  var node;
+  for (var i = 0; i < nodes.length; i++)
+  {
+    node = nodes[i];
+    if (node.getChild() == null)
+    {
+      node.moveBy(dX, dY);
+      node.displacementX += dX;
+      node.displacementY += dY;
+    }
+    else
+    {
+      node.propogateDisplacementToChildren(dX, dY);
+    }
+  }
+};
+
+CoSENode.prototype.setPred1 = function (pred1)
+{
+  this.pred1 = pred1;
+};
+
+CoSENode.prototype.getPred1 = function ()
+{
+  return pred1;
+};
+
+CoSENode.prototype.getPred2 = function ()
+{
+  return pred2;
+};
+
+CoSENode.prototype.setNext = function (next)
+{
+  this.next = next;
+};
+
+CoSENode.prototype.getNext = function ()
+{
+  return next;
+};
+
+CoSENode.prototype.setProcessed = function (processed)
+{
+  this.processed = processed;
+};
+
+CoSENode.prototype.isProcessed = function ()
+{
+  return processed;
+};
+
+module.exports = CoSENode;