diff --git a/js/geo-polygon.js b/js/geo-polygon.js
index 1bc047f5..1a867590 100644
--- a/js/geo-polygon.js
+++ b/js/geo-polygon.js
@@ -295,7 +295,7 @@ var gs_base_polygon = exports;
     };
 
     /**
-     * add fill angle hinting from longest segment
+     * hint fill angle hinting from longest segment
      */
     PRO.hintFillAngle = function() {
         var index = 0,
@@ -320,7 +320,6 @@ var gs_base_polygon = exports;
 
         if (longest && this.circularity() >= mincir) {
             this.fillang = longest.p1.slopeTo(longest.p2).normal();
-            // console.log([this.fillang,this.getZ(),this.id]);
         }
 
         return this.fillang;
diff --git a/js/geo-slope.js b/js/geo-slope.js
index 734c8922..46561668 100644
--- a/js/geo-slope.js
+++ b/js/geo-slope.js
@@ -95,7 +95,7 @@ var gs_base_slope = exports;
     PRO.invert = function() {
         this.dx = -this.dx;
         this.dy = -this.dy;
-        this.angle = 360 - this.angle;//Math.atan2(this.dy, this.dx) * RAD2DEG;
+        this.angle = 360 - this.angle;
         return this;
     };
 
diff --git a/js/kiri-slice.js b/js/kiri-slice.js
index d4c7a99a..c56c02e5 100644
--- a/js/kiri-slice.js
+++ b/js/kiri-slice.js
@@ -478,7 +478,7 @@ var gs_kiri_slice = exports;
 
         this.tops.forEach(function(top) {
             if (top.inner && top.inner.length > 0) {
-                top.fill_lines = fillArea(top.inner, angle, spacing);
+                top.fill_lines = fillArea(top.inner, angle, spacing, null, 0.00001);
             } else {
                 top.fill_lines = null;
             }
@@ -751,8 +751,8 @@ var gs_kiri_slice = exports;
             if (angfill.length > 0) {
                 top.fill_lines_ang = {spacing:spacing,list:[],poly:[]};
                 angfill.forEach(function(af) {
-                    fillArea([af], af.fillang.angle+90, spacing, top.fill_lines);
-                    top.fill_lines_ang.list.push(af.fillang.angle+90);
+                    fillArea([af], af.fillang.angle + 45, spacing, top.fill_lines);
+                    top.fill_lines_ang.list.push(af.fillang.angle + 45);
                     top.fill_lines_ang.poly.push(af.clone());
                 });
             }