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some optimizations of Point rotation

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bubnikv
2016-09-12 13:52:31 +02:00
parent 9a83d4e8d5
commit 73cbb4b5dc
2 changed files with 9 additions and 5 deletions
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2
xs/src/libslic3r/BoundingBox.hpp
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@@ -94,7 +94,7 @@ inline bool operator!=(const BoundingBoxBase<VT> &bb1, const BoundingBoxBase<VT>
template<typename VT>
inline bool empty(const BoundingBoxBase<VT> &bb)
{
return bb.min.x > bb.max.y || bb.min.y > bb.max.y;
return bb.min.x > bb.max.x || bb.min.y > bb.max.y;
}
template<typename VT>

12
xs/src/libslic3r/Point.cpp
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@@ -72,8 +72,10 @@ Point::rotate(double angle, const Point &center)
double cur_y = (double)this->y;
double s = sin(angle);
double c = cos(angle);
this->x = (coord_t)round( (double)center.x + c * (cur_x - (double)center.x) - s * (cur_y - (double)center.y) );
this->y = (coord_t)round( (double)center.y + c * (cur_y - (double)center.y) + s * (cur_x - (double)center.x) );
double dx = cur_x - (double)center.x;
double dy = cur_y - (double)center.y;
this->x = (coord_t)round( (double)center.x + c * dx - s * dy );
this->y = (coord_t)round( (double)center.y + c * dy + s * dx );
}
bool
@@ -386,8 +388,10 @@ Pointf::rotate(double angle, const Pointf &center)
double cur_y = this->y;
double s = sin(angle);
double c = cos(angle);
this->x = center.x + c * (cur_x - center.x) - s * (cur_y - center.y);
this->y = center.y + c * (cur_y - center.y) + s * (cur_x - center.x);
double dx = cur_x - center.x;
double dy = cur_y - center.y;
this->x = center.x + c * dx - s * dy;
this->y = center.y + c * dy + s * dx;
}
Pointf