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#include <cmath>
#include <utest/utest.h>
#include <libnr/nr-matrix.h>
#include <libnr/nr-matrix-fns.h> /* identity, matrix_equalp */
#include <libnr/nr-matrix-ops.h>
#include <libnr/nr-point-fns.h>
#include <libnr/nr-point-matrix-ops.h>
#include <libnr/nr-rotate.h>
#include <libnr/nr-rotate-fns.h>
#include <libnr/nr-rotate-ops.h>
using NR::X;
using NR::Y;
int main(int argc, char *argv[])
{
utest_start("rotate");
NR::Matrix const m_id(NR::identity());
NR::rotate const r_id(0.0);
NR::rotate const rot234(.234);
UTEST_TEST("constructors, comparisons") {
UTEST_ASSERT( r_id == r_id );
UTEST_ASSERT( rot234 == rot234 );
UTEST_ASSERT( rot234 != r_id );
UTEST_ASSERT( r_id == NR::rotate(NR::Point(1.0, 0.0)) );
UTEST_ASSERT( NR::Matrix(r_id) == m_id );
UTEST_ASSERT( NR::Matrix(r_id).test_identity() );
UTEST_ASSERT(rotate_equalp(rot234, NR::rotate(NR::Point(cos(.234), sin(.234))), 1e-12));
}
UTEST_TEST("operator=") {
NR::rotate rot234_eq(r_id);
rot234_eq = rot234;
UTEST_ASSERT( rot234 == rot234_eq );
UTEST_ASSERT( rot234_eq != r_id );
}
UTEST_TEST("inverse") {
UTEST_ASSERT( r_id.inverse() == r_id );
UTEST_ASSERT( rot234.inverse() == NR::rotate(-.234) );
}
NR::Point const b(-2.0, 3.0);
NR::rotate const rot180(NR::Point(-1.0, 0.0));
UTEST_TEST("operator*(Point, rotate)") {
UTEST_ASSERT( b * r_id == b );
UTEST_ASSERT( b * rot180 == -b );
UTEST_ASSERT( b * rot234 == b * NR::Matrix(rot234) );
UTEST_ASSERT(point_equalp(b * NR::rotate(M_PI / 2),
NR::rot90(b),
1e-14));
UTEST_ASSERT( b * rotate_degrees(90.) == NR::rot90(b) );
}
UTEST_TEST("operator*(rotate, rotate)") {
UTEST_ASSERT( r_id * r_id == r_id );
UTEST_ASSERT( rot180 * rot180 == r_id );
UTEST_ASSERT( rot234 * r_id == rot234 );
UTEST_ASSERT( r_id * rot234 == rot234 );
UTEST_ASSERT(rotate_equalp(rot234 * rot234.inverse(), r_id, 1e-14));
UTEST_ASSERT(rotate_equalp(rot234.inverse() * rot234, r_id, 1e-14));
UTEST_ASSERT(rotate_equalp(( NR::rotate(0.25) * NR::rotate(.5) ),
NR::rotate(.75),
1e-10));
}
UTEST_TEST("operator/(rotate, rotate)") {
UTEST_ASSERT( rot234 / r_id == rot234 );
UTEST_ASSERT( rot234 / rot180 == rot234 * rot180 );
UTEST_ASSERT(rotate_equalp(rot234 / rot234, r_id, 1e-14));
UTEST_ASSERT(rotate_equalp(r_id / rot234, rot234.inverse(), 1e-14));
}
return ( utest_end()
? EXIT_SUCCESS
: EXIT_FAILURE );
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
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