基于 D3 的开源图表库，C3.js 0.4.9 发布

C3.js 0.4.9 发布了，C3.js 是一个基于 D3.js 的可重用的开源图表库。使用非常舒服、充分可定制性和控制性。支持多种图表类型。

该版本改进记录包括：

• Addtooltip.positionoption - #833

• Add polyfill for phantomjs compatibility - #578 #838

• Adddata.selection.draggableand fix scrolling issue - #215 #798

• Addonrenderedcallback - #880

• Addaxis.y.invertedandaxis.y2.inverted- #885 #534

• Removedata.ondragstartanddata.ondragendcallbacks - #215 #798

• Improve performance by avoiding updating arc targets when it's not needed - #172

• Improve performance by skip transition whentransition.duration = 0- #172

• Fix to free detached DOM tree whendestorycalled - #866

• Fixpadding.leftwhen rotated category axis - #872

• FixgenerateColorfor arc chart - #874

• Fix d3 dependency to <=3.5.0 - #893

• Fix tooltip width to have auto - #832

• Fixdata.labels.format- #854

• Fix tooltip position when arc and legend right - #847

• Fixaxis.y.min/maxwhen it's inverted - #885

• Fix x grid height withpadding.top- #903

• Remove useless files in bower - #869