From 5f4c77358116895f8f9aa2cb1fb56064752a0e11 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Mon, 13 Nov 2017 11:26:46 +0100
Subject: [PATCH] fixed the disappearing center in equi-euclidean

---
 hypgraph.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hypgraph.cpp b/hypgraph.cpp
index 718eaa5f..995a56ef 100644
--- a/hypgraph.cpp
+++ b/hypgraph.cpp
@@ -152,6 +152,7 @@ void applymodel(hyperpoint H, hyperpoint& ret) {
 
   if(mdEqui()) {
     ld rad = sqrt(H[0] * H[0] + H[1] * H[1]);
+    if(rad == 0) rad = 1;
     ld d = hdist0(H);
     
     // 4 pi / 2pi = M_PI