Files
gzz-mirror/Modules/awtool/AwtMetricsFC.java
2026-09-14 20:19:29 -04:00

95 lines
2.4 KiB
Java

/*
AwtMetricsNormal.java
*
* Copyright (c) 2000, Ted Nelson and Tuomas Lukka
*
* You may use and distribute under the terms of either the GNU Lesser
* General Public License, either version 2 of the license or,
* at your choice, any later version. Alternatively, you may use and
* distribute under the terms of the XPL.
*
* See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of
* the licenses.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the README
* file for more details.
*
*/
/*
* Written by Kimmo Wideroos
*/
package org.gzigzag.module;
import org.gzigzag.*;
import java.util.*;
import java.awt.*;
/** Focus+context metrics1
*/
public class AwtMetricsFC extends AwtMetrics {
public String getZObName() {
return "Focus+Context";
}
public double[] transformAtFocusNbhood(double x, double y, double focusCoeff) {
double dx, dy, x2, y2;
x2 = x*focusCoeff;
y2 = y*focusCoeff;
if(x2<1 && x2>-1) {
dx = x2;
} else {
dx = x2*x2;
dx = x2>0 ? dx : -dx;
}
if(y2<1 && y2>-1) {
dy = y2;
} else {
dy = y2*y2;
dy = y2>0 ? dy : -dy;
}
return new double[] { dx/focusCoeff, dy/focusCoeff };
}
public double[] inverseTransformAtFocusNbhood(double x, double y, double focusCoeff) {
double dx, dy, x2, y2;
x2 = x*focusCoeff;
y2 = y*focusCoeff;
if(x2<1 && x2>-1) {
dx = x2;
} else {
dx = (x2>0) ? Math.sqrt(x2) : -Math.sqrt(-x2);
}
if(y2<1 && y2>-1) {
dy = y2;
} else {
dy = (y2>0) ? Math.sqrt(y2) : -Math.sqrt(-y2);
}
return new double[] { dx/focusCoeff, dy/focusCoeff };
}
public double transformScalingValue(double s) { return 1.0/s; }
public double focusCoefficientMinimum() { return 4.0; }
public double focusCoefficientMaximum() { return 8.0; }
public AwtMetricsFC() { super(); }
public AwtMetricsFC(ZZCell start, Dimension rv, Dimension vv,
double ox, double oy) {
super(start, rv, vv, ox, oy);
}
}