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OrcaSlicer/src/libslic3r/GCode/BeltBackTransform.hpp
T

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1.5 KiB
C++

#ifndef slic3r_BeltBackTransform_hpp_
#define slic3r_BeltBackTransform_hpp_
#include "../libslic3r.h"
#include "../Point.hpp"
#include "../PrintConfig.hpp"
namespace Slic3r {
// Reverses the pre-slice remap + shear + scale transforms that
// PrintObjectSlice.cpp applies to belt printer geometry, converting G-code
// coordinates from the sliced (remapped/sheared/scaled) frame back to the
// machine's real coordinate space.
//
// Initialized once from PrintConfig, then applied per-point in
// GCodeWriter::to_machine_coords() before axis remapping.
//
// Active when gcode_back_transform is true AND at least one of:
// - a shear axis has global mode enabled, or
// - a pre-slice axis remap is non-identity.
class BeltBackTransform
{
public:
BeltBackTransform() = default;
// Initialize from belt printer config. Rebuilds the same pre-slice remap,
// shear, and scale matrices as PrintObjectSlice.cpp and precomputes the
// affine inverse. Returns true if a non-identity back-transform was computed.
bool init_from_config(const PrintConfig &config);
// Apply the inverse transform to a point. Returns pos unchanged if
// no back-transform is active.
Vec3d apply(const Vec3d &pos) const;
// True if a non-identity back-transform is active.
bool is_active() const { return m_active; }
private:
bool m_active = false;
Transform3d m_inverse = Transform3d::Identity();
};
} // namespace Slic3r
#endif // slic3r_BeltBackTransform_hpp_