将平铺图像追加到D3.js网格

var rows = 10;
var cols = 10;
var gridScale = d3.scaleLinear()
  .domain([0, rows * cols])
  .range([0, width]); // width是网格的宽度

// 创建一个SVG的pattern元素，并设置图像的URL和平铺方式
var pattern = svg.append("defs")
  .append("pattern")
  .attr("id", "imagePattern")
  .attr("patternUnits", "userSpaceOnUse")
  .attr("width", gridScale(1))
  .attr("height", gridScale(1))
  .append("image")
  .attr("xlink:href", "image.jpg")
  .attr("width", gridScale(1))
  .attr("height", gridScale(1));

// 将图像平铺到每个网格单元格中
svg.selectAll("rect")
  .data(d3.range(rows * cols))
  .enter()
  .append("rect")
  .attr("x", function(d) { return gridScale(d % cols); })
  .attr("y", function(d) { return gridScale(Math.floor(d / cols)); })
  .attr("width", gridScale(1))
  .attr("height", gridScale(1))
  .style("fill", "url(#imagePattern)");