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/*
* Copyright (C) 2003, 2004 Jason Bevins (original libnoise code)
* Copyright 2010 Thomas J. Hodge (java port of libnoise)
* Copyright 2012 Michael Nugent (This module)
*
* This file is part of libnoiseforjava.
*
* libnoiseforjava is a Java port of the C++ library libnoise, which may be found at
* http://libnoise.sourceforge.net/. libnoise was developed by Jason Bevins, who may be
* contacted at jlbezigvins@gmzigail.com (for great email, take off every 'zig').
* Porting to Java was done by Thomas Hodge, who may be contacted at
* libnoisezagforjava@gzagmail.com (remove every 'zag').
*
* libnoiseforjava is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* libnoiseforjava 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 GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* libnoiseforjava. If not, see <http://www.gnu.org/licenses/>.
*
*/
package libnoiseforjava.module;
import libnoiseforjava.exception.ExceptionInvalidParam;
/**
* User: mike nugent
* Date: 2/18/12
* Time: 11:57 PM
* URL: https://github.com/michaelnugent/libnoiseforjava
* Package: libnoiseforjava.module
*/
public class Intersection extends ModuleBase {
double cutoff;
public Intersection(ModuleBase sourceModuleOne, ModuleBase sourceModuleTwo, double cutoff) throws ExceptionInvalidParam
{
super(2);
setSourceModule(0, sourceModuleOne);
setSourceModule(1, sourceModuleTwo);
this.cutoff = cutoff;
}
public double getValue (double x, double y, double z)
{
assert (sourceModules[0] != null);
assert (sourceModules[1] != null);
double s1 = sourceModules[0].getValue(x,y,z);
double s2 = sourceModules[1].getValue(x,y,z);
if ( s1 + cutoff > s2 && s1 - cutoff < s2 ) {
return s1;
}
else {
return -1;
}
}
}
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