如何在javascript中将坐标转换为二维数组？

function convertTo2DArray(x1, x2, y1, y2, step) {
  var array2D = [];
  
  var rows = Math.floor((y2 - y1) / step) + 1;
  var cols = Math.floor((x2 - x1) / step) + 1;
  
  for (var i = 0; i < rows; i++) {
    array2D[i] = [];
    
    for (var j = 0; j < cols; j++) {
      var x = x1 + j * step;
      var y = y1 + i * step;
      
      array2D[i][j] = [x, y];
    }
  }
  
  return array2D;
}

// 示例用法
var result = convertTo2DArray(0, 4, 0, 4, 1);
console.log(result);