| Line | Hits | Source |
|---|---|---|
| 1 | /* | |
| 2 | * Created on Jul 22, 2005 | |
| 3 | * | |
| 4 | * Copyright (c) 2005, the JUNG Project and the Regents of the University | |
| 5 | * of California | |
| 6 | * All rights reserved. | |
| 7 | * | |
| 8 | * This software is open-source under the BSD license; see either | |
| 9 | * "license.txt" or | |
| 10 | * http://jung.sourceforge.net/license.txt for a description. | |
| 11 | */ | |
| 12 | package edu.uci.ics.jung.visualization; | |
| 13 | ||
| 14 | import java.awt.geom.AffineTransform; | |
| 15 | import java.awt.geom.Point2D; | |
| 16 | import java.util.Iterator; | |
| 17 | ||
| 18 | import edu.uci.ics.jung.graph.ArchetypeVertex; | |
| 19 | ||
| 20 | 0 | public class VertexLocationUtils |
| 21 | { | |
| 22 | public static VertexLocationFunction scale(VertexLocationFunction vld, double dx, double dy) | |
| 23 | { | |
| 24 | 0 | SettableVertexLocationFunction out = new DefaultSettableVertexLocationFunction(); |
| 25 | // get the max x and max y locations | |
| 26 | 0 | double max_x = 0; |
| 27 | 0 | double max_y = 0; |
| 28 | 0 | for (Iterator iter = vld.getVertexIterator(); iter.hasNext(); ) |
| 29 | { | |
| 30 | 0 | ArchetypeVertex v = (ArchetypeVertex)iter.next(); |
| 31 | 0 | Point2D location = vld.getLocation(v); |
| 32 | 0 | max_x = Math.max(max_x, location.getX()); |
| 33 | 0 | max_y = Math.max(max_y, location.getY()); |
| 34 | } | |
| 35 | 0 | AffineTransform at = AffineTransform.getScaleInstance(dx / max_x, dy / max_y); |
| 36 | 0 | for (Iterator iter = vld.getVertexIterator(); iter.hasNext(); ) |
| 37 | { | |
| 38 | 0 | ArchetypeVertex v = (ArchetypeVertex)iter.next(); |
| 39 | 0 | Point2D location = vld.getLocation(v); |
| 40 | 0 | Point2D new_location = new Point2D.Double(); |
| 41 | 0 | at.transform(location, new_location); |
| 42 | 0 | out.setLocation(v, new_location); |
| 43 | } | |
| 44 | 0 | return out; |
| 45 | } | |
| 46 | } |
|
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