111 lines
2.8 KiB
C++
111 lines
2.8 KiB
C++
#include "point.hpp"
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#include "tap.hpp"
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#include "types.hpp"
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#include "coord/iostream.hpp"
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using namespace cruft;
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///////////////////////////////////////////////////////////////////////////////
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int
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main (void)
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{
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cruft::TAP::logger tap;
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// Redim to lower dimension
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{
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const point3f p { 0.f, 1.f, 2.f };
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const point2f q = p.redim<2> ();
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const point2f r { 0.f, 1.f };
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tap.expect_eq (q, r, "redim to lower dimension");
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}
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// Redim to higher dimension without fill
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{
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const point2f p(0.f, 1.f);
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const point2f q = p.redim<2> ();
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// GCC: we can't use the equality operator here because it triggers
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// an ICE on GCC 7.1.0
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tap.expect (
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std::equal (std::cbegin (p), std::cend (p), std::cbegin (q)),
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"redim to higher dimension"
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);
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}
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// Redim to higher dimension with fill
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//
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// HACK: This fails under GCC-7.1.0, and i'm not wasting any more time
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// reducing this test case. it's _really_ template heavy.
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{
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static const point4f FILL (1.f, 2.f, 3.f, 4.f);
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const point2f p (0.1f, 1.f);
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const point4f q = p.template redim<4> (FILL);
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tap.expect (
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almost_equal (q[0], p[0]) &&
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almost_equal (q[1], p[1]) &&
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almost_equal (q[2], FILL[2]) &&
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almost_equal (q[3], FILL[3]),
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"redim to higher with fill"
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);
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}
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// Simple linking check for coord type casting. Relies on truncation.
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{
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const point2f pf (0.5f, 0.2f);
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const point2u pu (0, 0);
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tap.expect_eq (pf.template cast<point2u::value_type> (), pu, "type cast with truncation");
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}
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// redim to 4-dimension homogenous coords
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{
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const point3f p (3, 4, 5);
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const point4f q = p.homog ();
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tap.expect (
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equal (q.x, 3.f) &&
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equal (q.y, 4.f) &&
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equal (q.z, 5.f) &&
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equal (q.w, 1.f),
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"homogenous redim"
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);
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}
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// trivial checks for distance metrics
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{
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const point2f a (1, 2);
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const point2f b (9, 5);
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tap.expect_eq (distance2 (a, b), 73.f, "distance2");
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tap.expect_eq (distance (a, b), std::sqrt (73.f), "distance");
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tap.expect_eq (manhattan (a, b), 11.f, "manhattan");
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tap.expect_eq (chebyshev (a, b), 8.f, "chebyshev");
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}
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// test furthest point calculation
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{
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cruft::point2f const cloud[] = {
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{ 0, 0},
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{-1, 2},
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{ 9,-3},
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{ 6, 1},
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};
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auto const i = 1, j = 2;
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auto const [a,b] = furthest (cruft::view{cloud});
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tap.expect ((a == cloud[i] && b == cloud[j]) ||
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(b == cloud[i] && a == cloud[j]),
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"furthest point test");
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};
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return tap.status ();
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}
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