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testMatrix.cpp

///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
// Digital Ltd. LLC
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
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// *       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
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// distribution.
// *       Neither the name of Industrial Light & Magic 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
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///////////////////////////////////////////////////////////////////////////



#include <testMatrix.h>
#include <ImathMatrix.h>
#include <ImathVec.h>
#include <ImathLimits.h>
#include <ImathMath.h>
#include <iostream>
#include <assert.h>


using namespace std;


//
// This file is not currently intended to exhaustively test
// the Imath Matrix33<T> and Matrix44<T> classes.  We leave
// that to PyImathTest.
//
// Instead, in this file we test only those aspects of the
// Imath Matrix33<T> and Matrix44<T> classes that must be 
// or are more convenient to test from C++.
//


void
testMatrix ()
{
    cout << "Testing functions in ImathMatrix.h" << endl;

    cout << "Imath::Matrix33 shear functions" << endl;

    Imath::M33f    m1, m2;
    m1.setShear (2.0f);
    assert ( m1[0][0] == 1.0f  &&  m1[0][1] == 0.0f  &&  m1[0][2] == 0.0f  &&
           m1[1][0] == 2.0f  &&  m1[1][1] == 1.0f  &&  m1[1][2] == 0.0f  &&
           m1[2][0] == 0.0f  &&  m1[2][1] == 0.0f  &&  m1[2][2] == 1.0f );
    
    m2.setShear (Imath::V2f (3.0f, 4.0f));
    assert ( m2[0][0] == 1.0f  &&  m2[0][1] == 4.0f  &&  m2[0][2] == 0.0f  &&
           m2[1][0] == 3.0f  &&  m2[1][1] == 1.0f  &&  m2[1][2] == 0.0f  &&
           m2[2][0] == 0.0f  &&  m2[2][1] == 0.0f  &&  m2[2][2] == 1.0f );
    
    
    m1.shear (Imath::V2f (5.0f, 6.0f));
    assert ( m1[0][0] == 13.0f  &&  m1[0][1] == 6.0f  &&  m1[0][2] == 0.0f  &&
           m1[1][0] ==  7.0f  &&  m1[1][1] == 1.0f  &&  m1[1][2] == 0.0f  &&
           m1[2][0] ==  0.0f  &&  m1[2][1] == 0.0f  &&  m1[2][2] == 1.0f );
    
    m2.shear (7.0f);
    assert ( m2[0][0] ==  1.0f  &&  m2[0][1] ==  4.0f  &&  m2[0][2] == 0.0f  &&
           m2[1][0] == 10.0f  &&  m2[1][1] == 29.0f  &&  m2[1][2] == 0.0f  &&
           m2[2][0] ==  0.0f  &&  m2[2][1] ==  0.0f  &&  m2[2][2] == 1.0f );
    

    cout << "ok\n" << endl;
}

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