From d45ad6e1ae3681f4d429e21b28d82a7b659a2b30 Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Tue, 25 Oct 2022 17:55:47 -0400
Subject: [PATCH] Add images/orientation_angle partial that returns the angle
 (in degress) of the orientation from an image's Exif info

---
 layouts/partials/images/orientation_angle.html | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 layouts/partials/images/orientation_angle.html

diff --git a/layouts/partials/images/orientation_angle.html b/layouts/partials/images/orientation_angle.html
new file mode 100644
index 0000000..480cfd7
--- /dev/null
+++ b/layouts/partials/images/orientation_angle.html
@@ -0,0 +1,13 @@
+{{ $orientation := .Exif.Tags.Orientation }}
+{{/* EXIF orientation is specified as an integer corresponding to a 90º rotation. */}}
+{{ $angle := 0 }}
+{{ if in (slice 1 2) $orientation }}
+    {{ $orientation = 0 }}
+{{ else if in (slice 3 4) $orientation }}
+    {{ $orientation = 180 }}
+{{ else if in (slice 5 6) $orientation }}
+    {{ $orientation = 90 }}
+{{ else if in (slice 7 8) $orientation }}
+    {{ $orientation = 270 }}
+{{ end }}
+{{ return $orientation }}