1回答

• 

  青山依旧ii

  2020-12-21 11:48:38

  // 线性渐变 需要手动添加  linearGradient 标签
  // 径向渐变同理
  function linearGradient(container, color1, color2) {
    var defs = container.append("defs");
  
    var gradient = defs
      .append("linearGradient")
      .attr("id", "linearColor")
      .attr("x1", "0%")
      .attr("y1", "0%")
      .attr("x2", "0%")
      .attr("y2", "100%");
  
    gradient
      .append("stop")
      .attr("offset", "0%")
      .style("stop-color", color1.toString());
  
    gradient
      .append("stop")
      .attr("offset", "100%")
      .style("stop-color", color2.toString());
  
    return gradient;
  }

  
  

  0 0