fix path join

src/graphics/image/fitContour.js

@@ -10,6 +10,7 @@ define(
         var fitBezier = require('graphics/image/fitBezier');
         var findBreakPoints = require('graphics/image/findBreakPoints');
         var pathUtil = require('graphics/pathUtil');
+        var reducePath = require('graphics/reducePath');
         var vector = require('graphics/vector');
 
 
@@ -136,7 +137,11 @@ define(
                 resultContour.splice(resultContour.length - 1, 1);
             }
 
-            return pathUtil.deInterpolate(resultContour);
+            return pathUtil.deInterpolate(reducePath(resultContour)).map(function (p) {
+                p.x = Math.floor(p.x);
+                p.y = Math.floor(p.y);
+                return p;
+            });
         }
 
         return fitContour;

src/graphics/pathJoin.js

@@ -24,7 +24,7 @@ define(
         var interpolatePathCrossBezier = require('./join/interpolatePathCrossBezier');
         var bezier2Segment = require('./join/bezier2Segment');
         var segment2Bezier = require('./join/segment2Bezier');
-
+        var reducePath = require('./reducePath');
 
         /**
          * 求路径交集、并集、差集
@@ -88,7 +88,7 @@ define(
             return paths.filter(function (path) {
                 return path.length > 2;
             }).map(function (path) {
-                return deInterpolate(path);
+                return reducePath(deInterpolate(path));
             });
         }