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Added helper functions to generate 3d transforms

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This commit is contained in:
Enrico Turri 2018-10-12 10:09:16 +02:00
parent 0bc99f3f65
commit aa0c3bf2e3
5 changed files with 46 additions and 33 deletions
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17
src/libslic3r/Geometry.cpp
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@ -1166,4 +1166,21 @@ MedialAxis::retrieve_endpoint(const VD::cell_type* cell) const
}
}
void assemble_transform(Transform3d& transform, const Vec3d& translation, const Vec3d& rotation, const Vec3d& scale)
{
transform = Transform3d::Identity();
transform.translate(translation);
transform.rotate(Eigen::AngleAxisd(rotation(2), Vec3d::UnitZ()));
transform.rotate(Eigen::AngleAxisd(rotation(1), Vec3d::UnitY()));
transform.rotate(Eigen::AngleAxisd(rotation(0), Vec3d::UnitX()));
transform.scale(scale);
}
Transform3d assemble_transform(const Vec3d& translation, const Vec3d& rotation, const Vec3d& scale)
{
Transform3d transform;
assemble_transform(transform, translation, rotation, scale);
return transform;
}
} }

15
src/libslic3r/Geometry.hpp
View file

@ -157,6 +157,21 @@ class MedialAxis {
const Point& retrieve_endpoint(const VD::cell_type* cell) const;
};
// Sets the given transform by assembling the given transformations in the following order:
// 1) scale
// 2) rotate X
// 3) rotate Y
// 4) rotate Z
// 5) translate
void assemble_transform(Transform3d& transform, const Vec3d& translation = Vec3d::Zero(), const Vec3d& rotation = Vec3d::Zero(), const Vec3d& scale = Vec3d::Ones());
// Returns the transform obtained by assembling the given transformations in the following order:
// 1) scale
// 2) rotate X
// 3) rotate Y
// 4) rotate Z
// 5) translate
Transform3d assemble_transform(const Vec3d& translation = Vec3d::Zero(), const Vec3d& rotation = Vec3d::Zero(), const Vec3d& scale = Vec3d::Ones());
} }
#endif

22
src/libslic3r/Model.cpp
View file

@ -1185,22 +1185,14 @@ void ModelInstance::transform_polygon(Polygon* polygon) const
Transform3d ModelInstance::world_matrix(bool dont_translate, bool dont_rotate, bool dont_scale) const
{
#if ENABLE_MODELINSTANCE_3D_FULL_TRANSFORM
Vec3d translation = dont_translate ? Vec3d::Zero() : m_offset;
Vec3d rotation = dont_rotate ? Vec3d::Zero() : m_rotation;
Vec3d scale = dont_scale ? Vec3d::Ones() : m_scaling_factor;
return Geometry::assemble_transform(translation, rotation, scale);
#else
Transform3d m = Transform3d::Identity();
#if ENABLE_MODELINSTANCE_3D_FULL_TRANSFORM
if (!dont_translate)
m.translate(m_offset);
if (!dont_rotate)
{
m.rotate(Eigen::AngleAxisd(m_rotation(2), Vec3d::UnitZ()));
m.rotate(Eigen::AngleAxisd(m_rotation(1), Vec3d::UnitY()));
m.rotate(Eigen::AngleAxisd(m_rotation(0), Vec3d::UnitX()));
}
if (!dont_scale)
m.scale(m_scaling_factor);
#else
if (!dont_translate)
m.translate(Vec3d(offset(0), offset(1), 0.0));
@ -1209,9 +1201,9 @@ Transform3d ModelInstance::world_matrix(bool dont_translate, bool dont_rotate, b
if (!dont_scale)
m.scale(scaling_factor);
#endif // ENABLE_MODELINSTANCE_3D_FULL_TRANSFORM
return m;
#endif // ENABLE_MODELINSTANCE_3D_FULL_TRANSFORM
}
}