Merge pull request #3 from privatenumber/trim-path

fix: trim "path"

Author: tooolbox

lib/Potrace.js

@@ -1097,9 +1097,9 @@ Potrace.prototype = {
 
     var tag = '<path d="';
 
-    this._pathlist.forEach(function(path) {
-      tag += utils.renderCurve(path.curve, scale);
-    });
+    tag += this._pathlist.map(function(path) {
+      return utils.renderCurve(path.curve, scale);
+    }).join(' ');
 
     tag += '" stroke="none" fill="' + fillColor + '" fill-rule="evenodd"/>';
 

lib/utils.js

@@ -166,9 +166,11 @@ module.exports = {
 
     var startingPoint = curve.c[(curve.n - 1) * 3 + 2];
 
-    var path = 'M '
+    var path = [
+      'M '
       + fixed(startingPoint.x * scale.x) + ' '
-      + fixed(startingPoint.y * scale.y) + ' ';
+      + fixed(startingPoint.y * scale.y)
+    ];
 
     curve.tag.forEach(function(tag, i) {
       var i3 = i * 3;
@@ -177,18 +179,22 @@ module.exports = {
       var p2 = curve.c[i3 + 2];
 
       if (tag === "CURVE") {
-        path += 'C ';
-        path += fixed(p0.x * scale.x) + ' ' + fixed(p0.y * scale.y) + ', ';
-        path += fixed(p1.x * scale.x) + ' ' + fixed(p1.y * scale.y) + ', ';
-        path += fixed(p2.x * scale.x) + ' ' + fixed(p2.y * scale.y) + ' ';
+        path.push(
+          'C '
+          + fixed(p0.x * scale.x) + ' ' + fixed(p0.y * scale.y) + ', '
+          + fixed(p1.x * scale.x) + ' ' + fixed(p1.y * scale.y) + ', '
+          + fixed(p2.x * scale.x) + ' ' + fixed(p2.y * scale.y)
+        );
       } else if (tag === "CORNER") {
-        path += 'L ';
-        path += fixed(p1.x * scale.x) + ' ' + fixed(p1.y * scale.y) + ' ';
-        path += fixed(p2.x * scale.x) + ' ' + fixed(p2.y * scale.y) + ' ';
+        path.push(
+          'L '
+          + fixed(p1.x * scale.x) + ' ' + fixed(p1.y * scale.y) + ' '
+          + fixed(p2.x * scale.x) + ' ' + fixed(p2.y * scale.y)
+        );
       }
     });
 
-    return path;
+    return path.join(' ');
   },
 
   bezier: function bezier(t, p0, p1, p2, p3) {