com.metsci.glimpse.painter.treemap.SliceAndDiceLayout Maven / Gradle / Ivy
/*
* Copyright (c) 2012, Metron, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Metron, Inc. nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL METRON, INC. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.metsci.glimpse.painter.treemap;
import java.awt.geom.Rectangle2D;
/**
* Lays out the children in a simplistic manner. It just divides the bounding
* rectangle into n slices (direction depends on the level).
*
* @author borkholder
*/
public class SliceAndDiceLayout implements TreeMapLayout
{
@Override
public Rectangle2D[] layout( Rectangle2D boundary, double[] sizes, int level )
{
boolean horizontal = level % 2 == 0;
double area = boundary.getWidth( ) * boundary.getHeight( );
double totalSize = 0;
for ( int i = 0; i < sizes.length; i++ )
{
totalSize += sizes[i];
}
Rectangle2D[] rects = new Rectangle2D[sizes.length];
double xOffset = boundary.getMinX( );
double yOffset = boundary.getMinY( );
for ( int i = 0; i < sizes.length; i++ )
{
double scaledSize = sizes[i] / totalSize * area;
double height = boundary.getHeight( );
double width = boundary.getWidth( );
if ( horizontal )
{
width = scaledSize / boundary.getHeight( );
}
else
{
height = scaledSize / boundary.getWidth( );
}
rects[i] = new Rectangle2D.Double( xOffset, yOffset, width, height );
if ( horizontal )
{
xOffset += width;
}
else
{
yOffset += height;
}
}
return rects;
}
}