From 620ba72765eda244ca3f3806b8ad709929e74b3c Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Thu, 21 Jun 2018 10:50:23 +0000
Subject: [PATCH] Isak's proposal for stretching energy calculation,  take 1

---
 src/energy.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/energy.h b/src/energy.h
index 1b97fa9..ad3a01b 100644
--- a/src/energy.h
+++ b/src/energy.h
@@ -8,4 +8,7 @@
 ts_bool sweep_attraction_bond_energy(ts_vesicle *vesicle);
 inline ts_bool attraction_bond_energy(ts_bond *bond, ts_double w);
 ts_double direct_force_energy(ts_vesicle *vesicle, ts_vertex *vtx, ts_vertex *vtx_old);
+
+void stretchenergy(ts_vesicle *vesicle, ts_triangle *triangle);
+ts_double stretchenergy2(ts_double current_area,ts_double tensionless_area);
 #endif

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