From 2f64ad2c1070df88f8c16f92ad8f9b5bd1892cf2 Mon Sep 17 00:00:00 2001
From: TheNumbat <mjslater@andrew.cmu.edu>
Date: Wed, 30 Sep 2020 14:05:17 -0400
Subject: [PATCH] change halfedge placement

---
 CMakeLists.txt    | 2 +-
 src/gui/model.cpp | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1e4b869..0de7b79 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 
-cmake_minimum_required(VERSION 3.17)
+cmake_minimum_required(VERSION 2.8)
 
 # define project
 
diff --git a/src/gui/model.cpp b/src/gui/model.cpp
index 98e472d..67b7493 100644
--- a/src/gui/model.cpp
+++ b/src/gui/model.cpp
@@ -283,11 +283,11 @@ void Model::halfedge_viz(Halfedge_Mesh::HalfedgeRef h, Mat4 &transform) {
     float v0s = vert_sizes[v_0->id()], v1s = vert_sizes[v_1->id()];
     float s = 0.3f * (v0s < v1s ? v0s : v1s);
 
-    // Move to center of edge and towards center of face
+    // Move to center of edge and away from edge
     Vec3 offset = (v1 - v0) * 0.2f;
-    Vec3 face = h->face()->center();
+    Vec3 face_n = h->face()->normal();
     Vec3 avg = 0.5f * (v0 + v1);
-    offset += (face - avg).unit() * s * 0.2f;
+    offset += cross(face_n, dir).unit() * s * 0.2f + face_n * s * 0.05f;
 
     // Align edge
     if (dir.y == 1.0f || dir.y == -1.0f) {
-- 
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