testMatrix4.cpp

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/*
 * testMatrix4.cpp
 *
 * Copyright (C) 2009  Thomas A. Vaughan
 * All rights reserved.
 *
 * Test program for the matrix4_t object.
 */

// includes --------------------------------------------------------------------
#include "geometry/matrix_4.h"

#include <math.h>


////////////////////////////////////////////////////////////////////////////////
//
//      static helper methods
//
////////////////////////////////////////////////////////////////////////////////

static void
doTest
(
void
)
{
        matrix4_t M;

        M.setIdentity();
        M.dump("identity");

        point3d_t p(1, 2, 3);
        M += p;
        M.dump("translation");

        M = p;
        M.dump("translation");

        M += p;
        M.dump("translation again");

        M.setZRotation(M_PI / 2.0);
        M.dump("Z-rotation: 90 degrees");

        M = p;
        point3d_t start(0, 0, 0);
        point3d_t end = M.transform(start);
        start.dump("starting point");
        M.dump("transformation");
        end.dump("transformed point");

        M.setZRotation(M_PI / 2.0);
        start = point3d_t(10, 0, 5);
        start.dump("new starting point");
        end = M.transform(start);
        end.dump("transformed point");

        M += p;
        end = M.transform(start);
        end.dump("transformed point");

        matrix4_t A, B;

        A.setZRotation(M_PI / 2.0);
        B = p;

        M = B * A;
        M.dump("M = B * A");

        // okay set up a simple test
        p.set(1, 1, 0);
        p.dump("starting point");

        M.setYRotation(M_PI / 2.0);
        p = M * p;
        p.dump("Rotated 90 degrees around Y axis");

        M.setZRotation(M_PI / 2.0);
        p = M * p;
        p.dump("Rotated 90 degrees around Z axis");


        p.set(1, 1, 0);
        p.dump("starting point");
        A.setYRotation(M_PI / 2.0);
        B.setZRotation(M_PI / 2.0);
        M = B * A;
        p = M * p;
        p.dump("Same transformation");
}



////////////////////////////////////////////////////////////////////////////////
//
//      entry point
//
////////////////////////////////////////////////////////////////////////////////

int
main
(
IN int argc,
IN const char * argv[]
)
{
        doTest();
}