[Emc-commit] [LinuxCNC/linuxcnc] f6ff60: preview: a cut from where left-out traverses went ...

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  Branch: refs/heads/master
  Home:   https://github.com/LinuxCNC/linuxcnc
  Commit: f6ff60787b8cd88133b8b96143894e16e20c5e66
      https://github.com/LinuxCNC/linuxcnc/commit/f6ff60787b8cd88133b8b96143894e16e20c5e66
  Author: Luca Toniolo <107...@us...>
  Date:   2026-10-14 (Wed, 14 Oct 2026)

  Changed paths:
    M src/emc/rs274ngc/gcode_renderer.cc
    M src/emc/rs274ngc/gcode_renderer.hh
    M tests/glcanon/test_workplane.py

  Log Message:
  -----------
  preview: a cut from where left-out traverses went counts toward the plane

After G43 or a tool change the preview leaves out the traverses before the first feed, as it always has, and those traverses never reached the plane in effect either. A plane whose first cut starts from them recorded only the cut's end: Sigma1912's program, G68.2, G53.1, G0 X0 Y0 Z50, G0 Z0, G1 X600, drew the first plane small at X 600 instead of over the cut from X 0 to 600.

A traverse left out under a plane now marks the point it reached, and a cut drawn from that point counts its start toward the plane. Only then: counting every left-out traverse would take in the end of a G53.1 orientation move, where the tool stood before the plane, and counting every cut's start would take in a cut that begins before the plane is set.

tests/glcanon/test_workplane.py checks a cut after G43.1 drawn from where the traverses went.

Reported by Sigma1912.

  Commit: f6eea6847fe42f70ef877cd6d0216187bf678e10
      https://github.com/LinuxCNC/linuxcnc/commit/f6eea6847fe42f70ef877cd6d0216187bf678e10
  Author: Luca Toniolo <107...@us...>
  Date:   2026-10-14 (Wed, 14 Oct 2026)

  Changed paths:
    M src/emc/rs274ngc/gcode_renderer.cc
    M src/emc/rs274ngc/gcode_renderer.hh
    M tests/glcanon/test_workplane.py

  Log Message:
  -----------
  Merge pull request #4679 from grandixximo/preview-plane-cut

preview: a cut from where left-out traverses went counts toward the plane

Compare: https://github.com/LinuxCNC/linuxcnc/compare/b36e0d1822ec...f6eea6847fe4

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