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unify frame tilt work

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Joseph Robertson
2026-06-08 06:16:48 -05:00
parent 9405ac5976
commit fee6be98b2
10 changed files with 112 additions and 401 deletions
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15
src/libslic3r/GCode/MachineFrameTransform.hpp
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@@ -9,14 +9,15 @@ namespace Slic3r {
// Post-stage machine-frame transform for belt printers.
//
// Applied in BeltGCodeWriter::to_machine_coords AFTER the back-transform,
// the gcode_remap_* axis remap and per-axis origin snap. Maps Cartesian
// (axis-permuted) G-code coordinates into the printer's physical machine
// frame using:
// gcode_shear_x/y/z + _angle + _from
// gcode_scale_x/y/z + _angle
// Applied in BeltGCodeWriter::to_machine_coords AFTER the back-transform and
// the gcode_remap_* axis remap. Maps Cartesian (axis-permuted) G-code
// coordinates into the printer's physical machine frame.
//
// Composition follows belt_gcode_transform_order (shear * scale or scale * shear).
// Derived entirely from the single belt tilt (belt_slice_rotation axis +
// belt_slice_rotation_angle): a shear coupling the height axis to the belt-feed
// axis (factor tan a) plus a 1/cos a scale on the belt-feed axis. The expert
// belt_frame_tilt_decouple flag lets the machine-frame angle differ from the
// pre-slice rotation angle via belt_frame_tilt_angle.
class MachineFrameTransform
{
public: