diff options
Diffstat (limited to 'xs/src/libslic3r/Point.cpp')
| -rw-r--r-- | xs/src/libslic3r/Point.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/xs/src/libslic3r/Point.cpp b/xs/src/libslic3r/Point.cpp index d7819bce2..e3c7b2262 100644 --- a/xs/src/libslic3r/Point.cpp +++ b/xs/src/libslic3r/Point.cpp @@ -72,8 +72,10 @@ Point::rotate(double angle, const Point ¢er) 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 ¢er) 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 |