From b42abd03250df0b0ce7326b30c0c99e87f693db7 Mon Sep 17 00:00:00 2001
From: Thomas Forgione <thomas@tforgione.fr>
Date: Thu, 12 Apr 2018 09:44:32 +0200
Subject: [PATCH] Added center and scale

---
 src/model.rs           | 12 ++++++++++++
 src/programs/viewer.rs |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/src/model.rs b/src/model.rs
index 09d4c75..54fc2d0 100644
--- a/src/model.rs
+++ b/src/model.rs
@@ -406,4 +406,16 @@ impl Model {
         (avg, sd)
 
     }
+
+    /// Centers and scales the model.
+    pub fn center_and_scale(&mut self) {
+        let bbox = self.bounding_box();
+        let center = (bbox.min() + bbox.max()) / 2.0;
+        let size = (bbox.max() - bbox.min()).norm();
+
+        for vertex in &mut self.vertices {
+            *vertex -= center;
+            *vertex /= size;
+        }
+    }
 }
diff --git a/src/programs/viewer.rs b/src/programs/viewer.rs
index 9f7fb9f..7dcba46 100644
--- a/src/programs/viewer.rs
+++ b/src/programs/viewer.rs
@@ -57,6 +57,8 @@ fn main() {
         }
     }
 
+    model.center_and_scale();
+
     let mut events_loop = EventsLoop::new();
     let window = WindowBuilder::new().with_visibility(false);
     let context = glutin::ContextBuilder::new().with_depth_buffer(24);