小编vei*_*mer的帖子

这是D3的新手,也是JS的新手.我试图在点击上创建一个圆圈,一旦创建该圆圈需要反复脉动.现在,它正在被正确创建并且它会进行一次转换,但之后由于错误而死亡.这是我的代码:

var shapesAtt = shapes
    // omitted: assigning fill, position, etc; working as intended
    .on("click", circleMouseClick);

function circleMouseClick(d, i)
{
    createPulse(this);
}

function createPulse(focusElement)
{
    // takes in "focal circle" element
    // some things here are hard coded for ease of reading 
    // (i.e. these variables aren't all useless)

    var focus = d3.select(focusElement);
    var origR = focus.attr("r");
    var origX = focus.attr("cx");
    var origY = focus.attr("cy");
    var origFill = focus.style("fill");

    var strokeColor = "black";

    var newG = svgContainer.append("g");
    var pulser = …