Question

Canvas渲染引擎绘制

Summary

OpenCharts.RenderEnginer	Canvas渲染引擎绘制
Functions
renderText	绘制文本
strokeRoundRect	绘制圆角矩形
bezier	绘制贝塞尔曲线，效果有点勉强
bspline	绘制B样条曲线，效果有点勉强
curve	绘制曲线

Functions

renderText

OpenCharts.RenderEnginer.renderText = function( context, strText, textStyle, position )

绘制文本

Parameters

context	{Object} 绘制的canvas画布内容.
strText	{String} 绘制的字符串.
textStyle	{OpenCharts.TextStyle} 绘制的字符串文本风格.
position	{OpenCharts.Point} 绘制的字符串位置.

strokeRoundRect

OpenCharts.RenderEnginer.strokeRoundRect = function( context, rect, radius, style )

绘制圆角矩形

Parameters

context	{Object} 绘制的canvas画布内容.
rect	{OpenCharts.Rect} 绘制的矩形.
radius	{Number} 圆角的半径.
style	{OpenCharts.Style} 绘制的圆角矩形风格.

bezier

OpenCharts.RenderEnginer.bezier = function( context, pointsArray )

绘制贝塞尔曲线，效果有点勉强

Parameters

context	{Object} 绘制的canvas画布内容.
pointsArray	{Array(OpenCharts.Point)} 绘制的点串.

bspline

OpenCharts.RenderEnginer.bspline = function( context, pointsArray )

绘制B样条曲线，效果有点勉强

Parameters

context	{Object} 绘制的canvas画布内容.
pointsArray	{Array(OpenCharts.Point)} 绘制的点串.

curve

OpenCharts.RenderEnginer.curve = function( context, pointsArray )

绘制曲线

Parameters

context	{Object} 绘制的canvas画布内容.
pointsArray	{Array(OpenCharts.Point)} 绘制的点串.