From 91b1d808ce5191b7e7fd65dc26b68c85ecbed617 Mon Sep 17 00:00:00 2001
From: mrleo1nid <43583385+mrleo1nid@users.noreply.github.com>
Date: Tue, 27 Oct 2026 01:45:01 +0300
Subject: [PATCH] feat: ATL keeps xpan/ypan/xtile/ytile, 3D rotations, zpos,
 blend, fit and friends instead of dropping them

These properties were treated as GPU hints and silently discarded. The converter now carries xpan, ypan,
xtile, ytile, xrotate, yrotate, zrotate, zpos, zzoom, blend, additive, transform_anchor, rotate_pad,
matrixanchor, matrixtransform, fit, maxsize and crop_relative into the timelines.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
---
 backend/app/converter/atl.py         | 3 +--
 backend/app/converter/rpy_helpers.py | 4 +++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/backend/app/converter/atl.py b/backend/app/converter/atl.py
index 2bf2659..d2b7774 100644
--- a/backend/app/converter/atl.py
+++ b/backend/app/converter/atl.py
@@ -43,8 +43,7 @@ LEADING_ZERO = re.compile(r"(?<![\w.])0+(\d)(?![\d.]*[\w.])")
 SPLIT_SIGN = re.compile(r"^([a-z_]+)(-[\d.]+)$")
 IGNORED = {"subpixel", "animation", "around", "alignaround", "rotate_pad"}  # no visible effect in the browser
 # Purely graphical GPU hints; dropping them changes how a picture is drawn, never what happens
-COSMETIC = ("xpan", "ypan", "matrixtransform", "matrixanchor", "transform_anchor", "shader", "mesh", "gl_", "u_", "blend", "additive", "perspective", "point_to", "xrotate", "yrotate",
-            "zrotate", "zpos", "zzoom", "delay", "events", "fit", "nearest", "fps", "show_cancels_hide")
+COSMETIC = ("shader", "mesh", "gl_", "u_", "perspective", "point_to", "delay", "events", "nearest", "fps", "show_cancels_hide")
 NAMED_POSITIONS = {
     "left": {"xpos": 0.0, "xanchor": 0.0}, "right": {"xpos": 1.0, "xanchor": 1.0},
     "center": {"xpos": 0.5, "xanchor": 0.5}, "truecenter": {"xpos": 0.5, "xanchor": 0.5, "ypos": 0.5, "yanchor": 0.5},
diff --git a/backend/app/converter/rpy_helpers.py b/backend/app/converter/rpy_helpers.py
index 3c24bbd..2d511e4 100644
--- a/backend/app/converter/rpy_helpers.py
+++ b/backend/app/converter/rpy_helpers.py
@@ -12,7 +12,9 @@ Node = dict[str, Any]
 POSITION_PROPS = {"xpos", "ypos", "xanchor", "yanchor", "xalign", "yalign", "xcenter",
                   "ycenter", "zoom", "xzoom", "yzoom", "alpha", "rotate", "xoffset", "yoffset",
                   "align", "pos", "anchor", "xysize", "size", "blur", "matrixcolor", "xycenter",
-                  "xsize", "ysize", "crop"}
+                  "xsize", "ysize", "crop", "xpan", "ypan", "xtile", "ytile", "xrotate", "yrotate", "zrotate", "zpos",
+                  "zzoom", "blend", "additive", "transform_anchor", "rotate_pad", "matrixanchor", "matrixtransform",
+                  "fit", "maxsize", "crop_relative"}
 
 
 _SHOW_KEYWORDS = {"at", "as", "behind", "onlayer", "with", "zorder"}