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FIX:when two dir is perpendicular to each other,scale error 

(plane_normal.dot(ray_dir))
jira:STUDIO-8274

Change-Id: Ib3145ab75e18c832d20065d204aa41b75f73b673
This commit is contained in:
zhou.xu 2024-10-14 14:31:15 +08:00 committed by Lane.Wei
parent 4819949d5b
commit fbdc9cd580
1 changed files with 8 additions and 2 deletions
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10
src/slic3r/GUI/Gizmos/GLGizmoScale.cpp
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@ -364,10 +364,16 @@ double GLGizmoScale3D::calc_ratio(const UpdateData& data) const
Vec3d plane_vec = mouse_dir.cross(m_starting.plane_nromal);
plane_normal = plane_vec.cross(m_starting.plane_nromal);
}
plane_normal = plane_normal.normalized();
// finds the intersection of the mouse ray with the plane that the drag point moves
// use ray-plane intersection see i.e. https://en.wikipedia.org/wiki/Line%E2%80%93plane_intersection
Vec3d inters = GetIntersectionOfRayAndPlane(data.mouse_ray.a, mouse_dir, m_starting.drag_position, plane_normal.normalized());
auto dot_value = (plane_normal.dot(mouse_dir));
auto angle = Geometry::rad2deg(acos(dot_value));
auto big_than_min_angle = abs(angle) < 95 && abs(angle) > 85;
if (big_than_min_angle) {
return 1;
}
Vec3d inters = GetIntersectionOfRayAndPlane(data.mouse_ray.a, mouse_dir, m_starting.drag_position, plane_normal);
Vec3d inters_vec = inters - m_starting.drag_position;