ClearCanvas =========== Open source code base for enabling software innovation in imaging. The extensible and robust platform includes viewing, archiving, management, workflow and distribution of images as well as an open architecture for core compe
ClearCanvas =========== Open source code base for enabling software innovation in imaging. The extensible and robust platform includes viewing, archiving, management, workflow and distribution of images as well as an open architecture for core compe
ClearCanvas Developers Guide Preface to 2.0 SP1 ClearCanvas Workstation 2.0 SP1 fixes four bugs, all related to non-square pixels, as described in ClearCanvas Product Bulletin 002. The potential impact of the bugs was determined to be significant en
总结以下三种清空canvas画布的方式：
1. 最简单的方法：由于canvas每当高度或宽度被重设时，画布内容就会被清空，因此可以用以下方法清空：
function clearCanvas()
{
var c=document.getElementById("myCanvas");
var cxt=c.getContext("2d");
c.height=c.height;
}
2. 使用clearRect方法：
function clearCanvas(
