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JGraphX Swing Component - Java Graph Visualization Library
This is a binary & source redistribution of the original, unmodified JGraphX library originating from:
"https://github.com/jgraph/jgraphx/archive/v3.4.1.3.zip".
The purpose of this redistribution is to make the library available to other Maven projects.
/**
* $Id: mxDistanceCostFunction.java,v 1.1 2009/10/16 14:35:58 david Exp $
* Copyright (c) 2007-2009, JGraph Ltd
*/
package com.mxgraph.analysis;
import com.mxgraph.util.mxPoint;
import com.mxgraph.view.mxCellState;
/**
* Implements a cost function for the Euclidean length of an edge.
*/
public class mxDistanceCostFunction implements mxICostFunction
{
/**
* Returns the Euclidean length of the edge defined by the absolute
* points in the given state or 0 if no points are defined.
*/
public double getCost(mxCellState state)
{
double cost = 0;
int pointCount = state.getAbsolutePointCount();
if (pointCount > 0)
{
mxPoint last = state.getAbsolutePoint(0);
for (int i = 1; i < pointCount; i++)
{
mxPoint point = state.getAbsolutePoint(i);
cost += point.getPoint().distance(last.getPoint());
last = point;
}
}
return cost;
}
}