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    <p>This works (in all situations, I believe), but it might require more thorough testing: </p> <pre><code>Area area; // The value is set elsewhere in the code ArrayList&lt;double[]&gt; areaPoints = new ArrayList&lt;double[]&gt;(); ArrayList&lt;Line2D.Double&gt; areaSegments = new ArrayList&lt;Line2D.Double&gt;(); double[] coords = new double[6]; for (PathIterator pi = area.getPathIterator(null); !pi.isDone(); pi.next()) { // The type will be SEG_LINETO, SEG_MOVETO, or SEG_CLOSE // Because the Area is composed of straight lines int type = pi.currentSegment(coords); // We record a double array of {segment type, x coord, y coord} double[] pathIteratorCoords = {type, coords[0], coords[1]}; areaPoints.add(pathIteratorCoords); } double[] start = new double[3]; // To record where each polygon starts for (int i = 0; i &lt; areaPoints.size(); i++) { // If we're not on the last point, return a line from this point to the next double[] currentElement = areaPoints.get(i); // We need a default value in case we've reached the end of the ArrayList double[] nextElement = {-1, -1, -1}; if (i &lt; areaPoints.size() - 1) { nextElement = areaPoints.get(i + 1); } // Make the lines if (currentElement[0] == PathIterator.SEG_MOVETO) { start = currentElement; // Record where the polygon started to close it later } if (nextElement[0] == PathIterator.SEG_LINETO) { areaSegments.add( new Line2D.Double( currentElement[1], currentElement[2], nextElement[1], nextElement[2] ) ); } else if (nextElement[0] == PathIterator.SEG_CLOSE) { areaSegments.add( new Line2D.Double( currentElement[1], currentElement[2], start[1], start[2] ) ); } } // areaSegments now contains all the line segments </code></pre>
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    1. POUsing PathIterator to return all line segments that constrain an Area?
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    1. COThanks for being one of the minority in SO to include comments in your code!
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    2. COThis is also tremendously helpful for finding the individual points of the path (either by cycling through the segments and grabbing the first point, or by simplifying the algorithm by skipping the segment generation).
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      1. USPeter Schwarz
    3. COYou could wrap your path iterator in a http://docs.oracle.com/javase/7/docs/api/java/awt/geom/FlatteningPathIterator.html to convert your curves to lines, and then use the solution above
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