protected virtual MacroCommand resolveGraph(GraphNode[] nodes, GraphLink[] links, IDrawingInterface drawable)
{
//try and rearrange the graph by setting node positions
//if want to, call drawable update to refresh
return null;
}
public GraphLink(GraphNode nodeA, GraphNode nodeB, int modelDegree)
{
this.nodeA = nodeA;
this.nodeB = nodeB;
linkLength = 32f;
linkStrength = 0.03f;
}
protected override MacroCommand resolveGraph(GraphNode[] nodes, GraphLink[] links, MuCell.View.IDrawingInterface drawable)
{
Vector2 topLeft = drawable.getScreenTopLeftInWorldCoordinates();
Vector2 bottomRight = drawable.getScreenBottomRightInWorldCoordinates();
float screenWidth = bottomRight.x - topLeft.x;
float screenHeight = bottomRight.y - topLeft.y;
float G = 60f;
float sideForce = 30f;
running = true;
long iterationCount = 0;
long renderTime = 1000;// (long)(1000.0 * (10.0 / nodes.Length));
while (running)
{
for (int l = 0; l < links.Length; l++)
{
GraphLink link = links[l];
link.step();
}
//push all nodes away from each other
for (int a = 0; a < nodes.Length-1; a++)
{
GraphNode nodeA = nodes[a];
for (int b = a + 1; b < nodes.Length; b++)
{
GraphNode nodeB = nodes[b];
Vector2 aToB = nodeB.getComponent().getPosition() - nodeA.getComponent().getPosition();
float distSqrd = aToB.getSqrdLength();
if (distSqrd < 1)
{
distSqrd = 1;
}
aToB.normalise();
Vector2 force = (aToB*G*(nodeA.getMass() * nodeB.getMass())) / distSqrd;
nodeA.push(-force);
nodeB.push(force);
}
}
//push all nodes in from the sides
for (int a = 0; a < nodes.Length; a++)
{
GraphNode nodeA = nodes[a];
Vector2 pos=nodeA.getComponent().getPosition();
float leftDistance = pos.x - topLeft.x;
if (leftDistance < 1f)
{
leftDistance = 1f;
}
float topDistance = pos.y - topLeft.y;
if (topDistance < 1f)
{
topDistance = 1f;
}
float rightDistance =bottomRight.x-pos.x;
if (rightDistance < 1f)
{
rightDistance = 1f;
}
float bottomDistance = bottomRight.y-pos.y;
if (bottomDistance < 1f)
{
bottomDistance = 1f;
}
Vector2 force = new Vector2((sideForce / leftDistance) - (sideForce / rightDistance), (sideForce / topDistance) - (sideForce / bottomDistance));
nodeA.push(force);
}
for (int n = 0; n < nodes.Length; n++)
{
GraphNode node = nodes[n];
node.step();
}
iterationCount++;
if (iterationCount % renderTime == 0)
{
drawable.redrawGraphPanel();
}
//Thread.Sleep(100);
}
drawable.redrawGraphPanel();
MacroCommand rearrangeCommand = new MacroCommand();
for (int n = 0; n < nodes.Length; n++)
{
GraphNode node = nodes[n];
MoveComponentCommand moveCommand = new MoveComponentCommand(node.getComponent(), node.getStartPosition(), node.getComponent().getPosition());
rearrangeCommand.addCommand(moveCommand);
}
return rearrangeCommand;
}