fix contour(carpet) rounded off edgpath constraints contour bug

++ update incorrect baselines added two commits ago.

Author: etpinard

Diff for: src/traces/contour/close_boundaries.js

@@ -58,14 +58,16 @@ module.exports = function(pathinfo, contours) {
                     }
                     break;
                 case '<':
-                    if(contoursValue < boundaryMin) {
+                    if(contoursValue < boundaryMin ||
+                        (!pi0.edgepaths.length && pi0.starts.length && contoursValue === boundaryMin)) {
                         pi0.prefixBoundary = true;
                     }
                     break;
                 case '[]':
                     v1 = Math.min(contoursValue[0], contoursValue[1]);
                     v2 = Math.max(contoursValue[0], contoursValue[1]);
-                    if(v2 < boundaryMin || v1 > boundaryMax) {
+                    if(v2 < boundaryMin || v1 > boundaryMax ||
+                        (!pi0.edgepaths.length && pi0.starts.length && v2 === boundaryMin)) {
                         pi0.prefixBoundary = true;
                     }
                     break;

Diff for: src/traces/contour/convert_to_constraints.js

@@ -41,6 +41,9 @@ module.exports = function(pathinfo, operation) {
             for(i = 0; i < pi0.paths.length; i++) {
                 pi0.paths[i] = op0(pi0.paths[i]);
             }
+            for(i = 0; i < pi0.starts.length; i++) {
+                pi0.starts[i] = op0(pi0.starts[i]);
+            }
 
             return pathinfo;
         case '][':
@@ -65,24 +68,31 @@ module.exports = function(pathinfo, operation) {
             for(i = 0; i < pi0.edgepaths.length; i++) {
                 pi0.edgepaths[i] = op0(pi0.edgepaths[i]);
             }
-
             for(i = 0; i < pi0.paths.length; i++) {
                 pi0.paths[i] = op0(pi0.paths[i]);
             }
+            for(i = 0; i < pi0.starts.length; i++) {
+                pi0.starts[i] = op0(pi0.starts[i]);
+            }
 
             while(pi1.edgepaths.length) {
                 pi0.edgepaths.push(op1(pi1.edgepaths.shift()));
             }
             while(pi1.paths.length) {
                 pi0.paths.push(op1(pi1.paths.shift()));
             }
+            while(pi1.starts.length) {
+                pi0.starts.push(op1(pi1.starts.shift()));
+            }
+
             return [pi0];
     }
 };
 
 function copyPathinfo(pi) {
     return Lib.extendFlat({}, pi, {
         edgepaths: Lib.extendDeep([], pi.edgepaths),
-        paths: Lib.extendDeep([], pi.paths)
+        paths: Lib.extendDeep([], pi.paths),
+        starts: Lib.extendDeep([], pi.starts)
     });
 }