问题描述
我正在Actionscript中创建一个绘画应用程序(尽管我的问题与Actionscript不相关).基本思想是在按下鼠标时开始绘画并跟踪鼠标的移动.我想要实现的是:
I am creating a painting application in Actionscript (although my question is not Actionscript related). The basic idea is to start painting when the mouse is pressed and tracking the mouse movements. What I want to achieve is:
- 减少鼠标的噪音"和
- 创建更平滑的线条.
现在，( 1 )是有问题的，因为我在几秒钟内获得了数千次鼠标移动.由于( 1 )，该行看起来很锯齿.当前的想法是:当用户完成绘制线条时，我将所有运动存储在一个数组中并减小它们(中值阈值)，然后使用样条算法重新创建一条线.
Right now, (1) is problematic because I get thousands of mouse movements within a few seconds. Due to (1) the line can look jaggy.What current idea: when the user finishes drawing the line, I store all movements in an array and reduce them (median threshold) and then use a spline algorithm to recreate a line.
还有更好的方法吗?
推荐答案
请参见有效的曲线拟合莎拉·弗里斯肯(Sarah Frisken).也可以在作者页面上 .
See Efficient Curve Fitting by Sarah Frisken. Also available at the author's page.
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