# The two title sweep leaves, across their WHOLE cycle. 2026-08-30.
# instrument: examples/ptloop_leaf_extent.rs
#
# Why this exists: ptloop_leaf_sweep_at.rs samples t=340..540, a window chosen to
# compare two competing fits, so it never showed how far the leaves travel. That
# gap let a claim stand that ptloop01/02 "do not free-run", measured over the
# PARENT's 200x90 rect -- a pivot anchor the leaf is almost never inside.
#
# sylpheed-port reported x tracks of -639..1521 and -839..1721 from their export.
# Checked against the disc, independently:

######## GP_TITLE entry 4 ########
  ptloop01.rat parent rest (441,270)  nested cycle span 600
    leaf pteff03.t32  pivot 200x90  quad w=400  x track -639 .. 1521  (centre -439 .. 1721)  scale_x [100] scale_y [600]
  ptloop02.rat parent rest (441,270)  nested cycle span 720
    leaf pteff03a.t32 pivot 200x90  quad w=400  x track -839 .. 1721  (centre -639 .. 1921)  scale_x [100] scale_y [800]

######## GP_TITLE entry 5 ########
  ptloop01.rat parent rest (441,270)  nested cycle span 600
    leaf pteff03.t32  pivot 200x90  quad w=400  x track -639 .. 1521  (centre -439 .. 1721)  scale_x [100] scale_y [600]
  ptloop02.rat parent rest (441,270)  nested cycle span 720
    leaf pteff03a.t32 pivot 200x90  quad w=400  x track -839 .. 1721  (centre -639 .. 1921)  scale_x [100] scale_y [800]

######## GP_TITLE entry 7 ########
  ptloop01.rat parent rest (441,270)  nested cycle span 600
    leaf pteff03.t32  pivot 200x90  quad w=400  x track -639 .. 1521  (centre -439 .. 1721)  scale_x [100] scale_y [600]
  ptloop02.rat parent rest (441,270)  nested cycle span 720
    leaf pteff03a.t32 pivot 200x90  quad w=400  x track -839 .. 1721  (centre -639 .. 1921)  scale_x [100] scale_y [800]
--- END ---

# CONFIRMED to the digit: ptloop01 -> pteff03, span 600, x -639..1521,
# scale (100, 600); ptloop02 -> pteff03a, span 720, x -839..1721, scale (100,800).
#
# 📌 AND A FACT NEITHER OF US HAD: the leaves are IDENTICAL on entries 4, 5 and 7
# -- the title, the MAIN MENU and the JP title. Same leaf names, same spans, same
# x tracks, same scales, same parent rest position. So the menu carries exactly
# the same sweep as the title, at the declaration level.
#
# The quad is 400 px wide at scale_x 100 % -- not widened -- and scale_y 600/800 %
# makes it 1080 / 1440 px tall, taller than the 720-px screen. A full-height strip
# whose left edge travels -639..1521, i.e. right across the frame and off both
# sides. Two phases of that are hundreds of pixels apart, which is why a
# phase-to-phase diff covers the union of both positions and looks frame-wide.
#
# ⚠️ My own earlier figure, "centre running x~921->1041", is a 30-UNIT WINDOW of a
# 600-unit cycle whose centre spans -439..1721. A sub-range is not an extent --
# the same caution as a pivot not being a bounding box, one level up.