饼、雷达中心坐标百分比支持

doc/example/pie1.html

@@ -97,7 +97,7 @@ option = {
             name:'访问来源',
             type:'pie',
             radius : [0, 110],
-            center: [,225],
+            center: ['50%', 225],
             data:[
                 {value:335, name:'直接访问'},
                 {value:310, name:'邮件营销'},

doc/example/wormhole.html

@@ -113,7 +113,7 @@ option = {
                { text: 'Firefox', max: 400},
                { text: 'Chrome', max: 400}
             ],
-            center : [,240],
+            center : ['50%', 240],
             radius : 150
         }
     ],

doc/slide/js/whyEcharts.js

@@ -1439,7 +1439,7 @@ var optionMap = {
 			               { text: 'Firefox', max: 400},
 			               { text: 'Chrome', max: 400}
 			            ],
-			            center : [,240],
+			            center : ['50%', 240],
 			            radius : 150
 			        }
 			    ],

src/chart/pie.js

@@ -589,22 +589,7 @@ define(function(require) {
                           'recursive' : true
                       }
                   );
-            // 圆心坐标，无则为自适应居中
-            if (!opt.center 
-                || (opt.center && !(opt.center instanceof Array))) {
-                opt.center = [
-                    Math.round(zr.getWidth() / 2),
-                    Math.round(zr.getHeight() / 2)
-                ];
-            }
-            else {
-                if (typeof opt.center[0] == 'undefined') {
-                    opt.center[0] = Math.round(zr.getWidth() / 2);
-                }
-                if (typeof opt.center[1] == 'undefined') {
-                    opt.center[1] = Math.round(zr.getHeight() / 2);
-                }
-            }
+            opt.center = self.parseCenter(opt.center);
             
             // 传数组实现环形图，[内半径，外半径]，传单个则默认为外半径为
             if (typeof opt.radius == 'undefined') {

src/component/base.js

@@ -98,7 +98,6 @@ define(function(require) {
             }
         }
 
-
         /**
          * 获取多级控制嵌套属性的基础方法
          * 返回ctrList中优先级最高（最靠前）的非undefined属性，ctrList中均无定义则返回undefined
@@ -258,6 +257,16 @@ define(function(require) {
                 return value;
             }
         }
+        
+        /**
+         * 获取中心坐标
+         */ 
+        function parseCenter(center) {
+            return [
+                parsePercent(center[0], self.zr.getWidth()),
+                parsePercent(center[1], self.zr.getHeight()),
+            ];
+        }
 
         function _trim(str) {
             return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
@@ -324,6 +333,7 @@ define(function(require) {
         self.getFont = getFont;
         self.addLabel = addLabel;
         self.parsePercent = parsePercent;
+        self.parseCenter = parseCenter;
         self.clear = clear;
         self.dispose = dispose;
         self.backupAdaptiveParams = backupAdaptiveParams;

src/component/polar.js

@@ -765,23 +765,8 @@ define(
                           }
                       );
 
-                // 圆心坐标，无则为自适应居中
-                if (!opt.center 
-                    || (opt.center && !(opt.center instanceof Array))) {
-                    opt.center = [
-                        Math.round(zr.getWidth() / 2),
-                        Math.round(zr.getHeight() / 2)
-                    ];
-                }
-                else {
-                    if (typeof opt.center[0] == 'undefined') {
-                        opt.center[0] = Math.round(zr.getWidth() / 2);
-                    }
-                    if (typeof opt.center[1] == 'undefined') {
-                        opt.center[1] = Math.round(zr.getHeight() / 2);
-                    }
-                }
-
+                opt.center = self.parseCenter(opt.center);
+                
                 if (!opt.radius) {
                     opt.radius = Math.floor(
                         Math.min(_width, _height) / 2 - 50

src/config.js

@@ -329,7 +329,7 @@ define(function() {
         },
 
         polar : {
-            // center: null,                   // 默认全局居中
+            center : ['50%', '50%'],    // 默认全局居中
             // radius: [0, min(width,height) - 50],
             startAngle : 90,
             splitNumber : 5,
@@ -529,7 +529,7 @@ define(function() {
 
         // 饼图默认参数
         pie: {
-            // center: null,                   // 默认全局居中
+            center : ['50%', '50%'],    // 默认全局居中
             // radius: [0, min(width,height) - 50],
             startAngle: 90,
             minAngle: 5,