From ae91f3bcd57caf40be958fc1bc5dee7669c726d7 Mon Sep 17 00:00:00 2001
From: Yann Lanthony <yann.lanthony@gmail.com>
Date: Thu, 19 Sep 2019 12:50:48 +0200
Subject: [PATCH] [reconstruction] ViewpointWrapper: fix uvCenterOffset for
 rotated images

correctly apply image transformation to principal point correction in uv coordinates.
---
 meshroom/ui/reconstruction.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/meshroom/ui/reconstruction.py b/meshroom/ui/reconstruction.py
index 18a5ffd0..015f67e3 100755
--- a/meshroom/ui/reconstruction.py
+++ b/meshroom/ui/reconstruction.py
@@ -332,7 +332,12 @@ class ViewpointWrapper(QObject):
         uvPP = QVector2D(float(pp[0]) / self.imageSize.width(), float(pp[1]) / self.imageSize.height())
         # convert to offset
         offset = uvPP - QVector2D(0.5, 0.5)
-        return offset if self.orientation == 1 else -offset
+        # apply orientation to principal point correction
+        if self.orientation == 6:
+            offset = QVector2D(-offset.y(), offset.x())
+        elif self.orientation == 8:
+            offset = QVector2D(offset.y(), -offset.x())
+        return offset
 
     @Property(type=float, notify=sfmParamsChanged)
     def fieldOfView(self):