From b79d9e5b0eeef83f1839d8f59770ec2ff595cd1f Mon Sep 17 00:00:00 2001
From: Stewart Allen <stewart@neuron.com>
Date: Mon, 21 Jan 2019 15:21:24 -0500
Subject: [PATCH] add missing half of gyroid

---
 js/geo-gyroid.js          | 2 +-
 web/kiri/gyroid-test.html | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/geo-gyroid.js b/js/geo-gyroid.js
index 2040f26c..2e0429c6 100644
--- a/js/geo-gyroid.js
+++ b/js/geo-gyroid.js
@@ -46,7 +46,7 @@ var gs_base_gyroid = exports;
             let erow = edge[y];
             let lval = vrow[vrow.length - 1];
             vrow.forEach((val, x) => {
-                if (lval <= 0 && val >= 0) {
+                if ((lval <= 0 && val >= 0) || (lval >= 0 && val <= 0)) {
                     erow[x] = 1;
                     points++;
                     points_lr++;
diff --git a/web/kiri/gyroid-test.html b/web/kiri/gyroid-test.html
index 8e452aaf..2bb9bede 100644
--- a/web/kiri/gyroid-test.html
+++ b/web/kiri/gyroid-test.html
@@ -99,7 +99,7 @@
                 let erow = edge[y];
                 let lval = vrow[vrow.length - 1];
                 vrow.forEach((val, x) => {
-                    if (lval <= 0 && val >= 0) {
+                    if ((lval <= 0 && val >= 0) || (lval >= 0 && val <= 0)) {
                         erow[x] = 1;
                         points++;
                         points_lr++;