最新回答 / qq_nothero丶alon_0
canvas.toDataURL("image/png");??用toDataURL?把canvas內(nèi)容轉(zhuǎn)為base64的圖片
2016-02-01
計(jì)算線寬的公式不對吧,resultLineWidth=(v-0.1)/(10-0.1) * (30-1) + 1
2016-01-26
發(fā)現(xiàn)一bug:如果只是點(diǎn)擊一下不會有痕跡出現(xiàn),下面是我的改善的部分代碼,大家可以參考一下:
var isMouseMove = false;
canvas.onmouseup = function(e)
{ if(isMouseMove != true)
{
context.beginPath();
context.arc(curLoc.x, curLoc.y, 15, 0 ,2*Math.PI);
context.fillStyle = drawColor;
context.fill();
}
isMouseMove = false;
}
var isMouseMove = false;
canvas.onmouseup = function(e)
{ if(isMouseMove != true)
{
context.beginPath();
context.arc(curLoc.x, curLoc.y, 15, 0 ,2*Math.PI);
context.fillStyle = drawColor;
context.fill();
}
isMouseMove = false;
}
2016-01-26