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//# tHyperPlane.cc: Test the HyperPlane class
//# Copyright (C) 2001,2002,2004
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This program 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 2 of the License, or (at your option)
//# any later version.
//#
//# This program 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 this program; if not, write to the Free Software Foundation, Inc.,
//# 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: casa-feedback@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
#include <casacore/scimath/Functionals/HyperPlane.h>
#include <casacore/scimath/Mathematics/AutoDiff.h>
#include <casacore/scimath/Mathematics/AutoDiffA.h>
#include <casacore/scimath/Mathematics/AutoDiffIO.h>
#include <casacore/scimath/Mathematics/AutoDiffMath.h>
#include <casacore/casa/BasicSL/Constants.h>
#include <casacore/casa/BasicMath/Math.h>
#include <casacore/casa/Arrays/ArrayLogical.h>
#include <casacore/casa/Arrays/Vector.h>
#include <casacore/casa/Arrays/ArrayMath.h>
#include <casacore/casa/Utilities/Assert.h>
#include <casacore/casa/iostream.h>
#include <casacore/casa/namespace.h>
int main() {
try {
// Construct an m dimensional hyper plane which has m coefficients. By
// default, the coefficients are initialized to zero.
//HyperPlane(uInt m);
HyperPlane<Double> hyper(3);
// Make this object a copy of other.
//HyperPlane(const HyperPlane<Type> &other);
HyperPlane<Double> comb2(hyper);
// Make this object a copy of other.
//HyperPlane<Type> &operator=(const HyperPlane<Type> &other);
comb2 = hyper;
// Return the total number of coefficients, which is the dimension of the
// hyper plane.
AlwaysAssertExit(hyper.nparameters() == 3 &&
hyper.nparameters() == comb2.nparameters());
Vector<Double> v(3);
// Set the value of a coefficient.
// Get the value of a coefficient.
// f(x,y,z) = 10x + 11y + 12*z
for (uInt i=0; i<3; i++) {
hyper[i] = i+10;
AlwaysAssertExit(hyper[i] == Double(i+10));
v(i) = i+10;
}
// Set all coefficients at once.
// Get all the values of coefficients at once.
hyper.parameters().setParameters(v);
AlwaysAssertExit(allEQ(hyper.parameters().getParameters(), v));
// Evaluate the function at <src>v</src>.
// f(x,y,z) = 10x + 11y + 12*z
AlwaysAssertExit((hyper(v) - Double(365)) < 1.e-6);
// Returns the dimension of functions in the linear hyper
// uInt ndim() const;
AlwaysAssertExit(hyper.ndim() == 3);
// Set coefficients
for (uInt i=0; i<hyper.nparameters()-2; i++) {
hyper.mask(i) = False;
AlwaysAssertExit(!hyper.mask(i));
}
AlwaysAssertExit(hyper.parameters().nMaskedParameters() == 2);
for (uInt i=0; i<hyper.parameters().nMaskedParameters(); i++) {
AlwaysAssertExit(hyper.parameters().getMaskedParameters()[i] ==
Double(11+i));
}
// test specialized AutoDiff
// f(x,y,z) = 10x + 11y + 12*z + 13
Vector<AutoDiffA<Double> > v6(3);
HyperPlane<AutoDiff<Double> > s5(3);
for (uInt i=0; i<3; i++) {
s5[i] = AutoDiff<Double>(i+10,3,i);
AlwaysAssertExit(s5[i] == Double(i+10));
v[i] = i+10;
v6(i) = i+10;
}
Double y50 = s5(v).value();
Vector<Double> y51;
y51 = s5(v).derivatives();
cout << "AutoDiff: " << s5(v) << endl;
// Generic AutoDiff
HyperPlane<AutoDiffA<Double> > s6(3);
for (uInt i=0; i<3; i++) {
s6[i] = AutoDiffA<Double>(i+10,3,i);
AlwaysAssertExit(s6[i].value() == Double(i+10));
v6(i) = i+10;
}
Double y60 = s6(v6).value();
Vector<Double> y61;
y61 = s6(v6).derivatives();
cout << "AutoDiffA: " << s6(v6) << endl;
AlwaysAssertExit(near(y60, y50) &&
near(y61(0), y51[0]) &&
near(y61(1), y51[1]) &&
near(y61(2), y51[2]));
} catch (std::exception& x) {
cout << "Exception : " << x.what() << endl;
}
cout << "OK" << endl;
return 0;
}
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