3DPrinting/PrusaSlicer-NonPlainar
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Fix rounding error in clipper.cpp

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This fixes half of #1486 (test failure in t/geometry.t)
This commit is contained in:
Nicolas Dandrimont 2013-11-03 01:13:23 +01:00
parent 849d69d178
commit 067cc1a74a
1 changed files with 4 additions and 4 deletions
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8
xs/src/clipper.cpp
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@ -3335,11 +3335,11 @@ void DoSquare(double mul)
a1 = std::fabs(a2 - a1);
if (a1 > pi) a1 = pi * 2 - a1;
double dx = std::tan((pi - a1) / 4) * std::fabs(m_delta * mul);
pt1 = IntPoint((long64)(pt1.X -normals[m_k].Y * dx),
(long64)(pt1.Y + normals[m_k].X * dx));
pt1 = IntPoint((long64)Round(pt1.X -normals[m_k].Y * dx),
(long64)Round(pt1.Y + normals[m_k].X * dx));
AddPoint(pt1);
pt2 = IntPoint((long64)(pt2.X + normals[m_j].Y * dx),
(long64)(pt2.Y -normals[m_j].X * dx));
pt2 = IntPoint((long64)Round(pt2.X + normals[m_j].Y * dx),
(long64)Round(pt2.Y -normals[m_j].X * dx));
AddPoint(pt2);
}
else