From 733c6f8670889c2c53308cf241c9cce946c500be Mon Sep 17 00:00:00 2001
From: crosstyan <crosstyan@outlook.com>
Date: Thu, 24 Apr 2025 14:23:56 +0800
Subject: [PATCH] Update execution counts in find_cute_box_with_image.ipynb and
 adjust coordinate transformations for OpenGL to Blender compatibility.

---
 find_cute_box_with_image.ipynb | 27 ++++++++++++---------------
 1 file changed, 12 insertions(+), 15 deletions(-)

diff --git a/find_cute_box_with_image.ipynb b/find_cute_box_with_image.ipynb
index 6f4317c..4a5ede5 100644
--- a/find_cute_box_with_image.ipynb
+++ b/find_cute_box_with_image.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 77,
+   "execution_count": 117,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -29,7 +29,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 78,
+   "execution_count": 118,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -42,7 +42,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 79,
+   "execution_count": 119,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -54,7 +54,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 80,
+   "execution_count": 120,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -66,7 +66,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 81,
+   "execution_count": 121,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -88,7 +88,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 82,
+   "execution_count": 122,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -121,7 +121,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 83,
+   "execution_count": 123,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -192,7 +192,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 86,
+   "execution_count": 126,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -298,16 +298,13 @@
     "id_to_3d_coords = {marker.id: marker_to_3d_coords(marker, m) for marker in output_markers}\n",
     "# note that the glb is Y up\n",
     "# when visualizing with matplotlib, it's Z up\n",
-    "# GLTF → Blender:     (X, Y, Z) → (X, -Z, Y)\n",
     "OPEN_GL_TO_BLENDER = np.array([[1, 0, 0], [0, 0, -1], [0, 1, 0]])\n",
-    "# Blender → GLTF:     (X, Y, Z) → (X, Z, -Y)\n",
-    "BLENDER_TO_OPEN_GL = np.array([[1, 0, 0], [0, 0, 1], [0, -1, 0]])\n",
     "display(np.linalg.inv(OPEN_GL_TO_BLENDER)) # should be the same"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 93,
+   "execution_count": 131,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -370,10 +367,10 @@
     "    assert face is not None\n",
     "    color = face.color\n",
     "    for i in range(4):\n",
-    "        p1 = corners[i]\n",
-    "        p2 = corners[(i + 1) % 4]\n",
+    "        p1 = OPEN_GL_TO_BLENDER @ corners[i]\n",
+    "        p2 = OPEN_GL_TO_BLENDER @ corners[(i + 1) % 4]\n",
     "        ax.plot(*zip(p1, p2), color=color)\n",
-    "    center = corners.mean(axis=0)\n",
+    "    center = OPEN_GL_TO_BLENDER @ corners.mean(axis=0)\n",
     "    ax.scatter(*center, color=color)\n",
     "    ax.text(*center, str(tag_id), fontsize=9, color=\"black\") # type: ignore\n",
     "\n",