Question

在试图使用Linear Gradient时,我有问题。

//linear gradient
canvas.beginPath();
canvas.arc(350,400,100,0,2*Math.PI,false);
canvas.strokeStyle =  lightblue ;

var grad = canvas.createLinearGradient(350,110,100,0);  //(x0,y0) to (x1,y1)
grad.addColorStop(0, red );
grad.addColorStop(1, yellow );
grad.fillStyle = grad;
canvas.fill();
canvas.stroke();

问题是,圈子的线梯度不工作。圈子本身显示罚款。

在该法规之前,一号是“Ecanpo. 填埋场 = 青;”因此,环体是“青的,而不是 red的”。也许会放弃某些内容。

Thanks! (btw i use chrome and this effect working fine on other things)

Answer 1

canvas. liverStyle = grad;, not grad.lifStyle = grad;!

使梯度完全达到你想要的东西是另一个问题:

It looks all red right now, but if you changed the x/y values you d be able to see the gradient. For instance:

var grad = canvas.createLinear Gradient (350,110,100,330);

trick。

http://jsfiddle.net/3EzUq/

I don t think you should call the context canvas. I d recommend ctx or context instead. It s not a big deal but you ll confuse collaborators someday.

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