63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
#include "bezier.hpp"
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#include "debug.hpp"
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#include <cstdlib>
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int
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main (int, char**)
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{
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// Check degree-1 beziers
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{
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static const util::bezier<1> b1 ({{ 0.f, 0.f},
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{100.f, 100.f}});
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auto p0 = b1.eval(0.f);
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auto p1 = b1.eval(1.f);
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CHECK_EQ (p0, b1[0]);
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CHECK_EQ (p1, b1[1]);
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auto px = b1.eval(0.5f);
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auto rx = b1[0] + 0.5f * (b1[1]-b1[0]);
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CHECK_EQ (px, rx);
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}
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// Check degree-2 beziers
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{
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static const util::bezier<2> b2 ({{ 0.f, 0.f},
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{ 50.f, 50.f},
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{100.f, 100.f}});
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auto p0 = b2.eval(0.f);
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auto p2 = b2.eval(1.f);
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CHECK_EQ (p0, b2[0]);
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CHECK_EQ (p2, b2[2]);
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auto px = b2.eval(0.5f);
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auto rx = b2[0] + 0.5f * (b2[2]-b2[0]);
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CHECK_EQ (px, rx);
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}
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// Check degree-3 beziers
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{
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static const util::bezier<3> b3 ({{ 0.f, 0.f },
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{ 33.f, 33.f },
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{ 67.f, 67.f },
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{ 100.f, 100.f }});
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auto p0 = b3.eval (0.f);
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auto p3 = b3.eval (1.f);
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CHECK_EQ (p0, b3[0]);
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CHECK_EQ (p3, b3[3]);
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auto px = b3.eval (0.5f);
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auto rx = b3[0] + 0.5f * (b3[3] - b3[0]);
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CHECK_EQ (px, rx);
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}
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return EXIT_SUCCESS;
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}
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