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Support larger printer sizes by using 64-bit.

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SuperSlicer is referenced for some changes.

Co-authored-by: Merill <merill@free.fr>
This commit is contained in:
SoftFever 2024-05-10 23:42:28 +08:00
parent 5bceebdd9d
commit 9b2c2bff1d
87 changed files with 380 additions and 362 deletions
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26
src/libslic3r/Geometry.hpp
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@ -48,14 +48,24 @@ enum Orientation
// As the points are limited to 30 bits + signum,
// the temporaries u, v, w are limited to 61 bits + signum,
// and d is limited to 63 bits + signum and we are good.
static inline Orientation orient(const Point &a, const Point &b, const Point &c)
{
static_assert(sizeof(coord_t) * 2 == sizeof(int64_t), "orient works with 32 bit coordinates");
int64_t u = int64_t(b.x()) * int64_t(c.y()) - int64_t(b.y()) * int64_t(c.x());
int64_t v = int64_t(a.x()) * int64_t(c.y()) - int64_t(a.y()) * int64_t(c.x());
int64_t w = int64_t(a.x()) * int64_t(b.y()) - int64_t(a.y()) * int64_t(b.x());
int64_t d = u - v + w;
return (d > 0) ? ORIENTATION_CCW : ((d == 0) ? ORIENTATION_COLINEAR : ORIENTATION_CW);
//note: now coord_t is int64_t, so the algorithm is now adjusted to fallback to double is too big.
static inline Orientation orient(const Point &a, const Point &b, const Point &c) {
//static_assert(sizeof(coord_t) * 2 == sizeof(int64_t), "orient works with 32 bit coordinates");
// BOOST_STATIC_ASSERT(sizeof(coord_t) == sizeof(int64_t));
if (a.x() <= 0xffffffff && b.x() <= 0xffffffff && c.x() <= 0xffffffff &&
a.y() <= 0xffffffff && b.y() <= 0xffffffff && c.y() <= 0xffffffff) {
int64_t u = int64_t(b(0)) * int64_t(c(1)) - int64_t(b(1)) * int64_t(c(0));
int64_t v = int64_t(a(0)) * int64_t(c(1)) - int64_t(a(1)) * int64_t(c(0));
int64_t w = int64_t(a(0)) * int64_t(b(1)) - int64_t(a(1)) * int64_t(b(0));
int64_t d = u - v + w;
return (d > 0) ? ORIENTATION_CCW : ((d == 0) ? ORIENTATION_COLINEAR : ORIENTATION_CW);
} else {
double u = double(b(0)) * double(c(1)) - double(b(1)) * double(c(0));
double v = double(a(0)) * double(c(1)) - double(a(1)) * double(c(0));
double w = double(a(0)) * double(b(1)) - double(a(1)) * double(b(0));
double d = u - v + w;
return (d > 0) ? ORIENTATION_CCW : ((d == 0) ? ORIENTATION_COLINEAR : ORIENTATION_CW);
}
}
// Return orientation of the polygon by checking orientation of the left bottom corner of the polygon