我在“ Chartjs二维轴” 网格上遇到问题。有两个具有不同数据的y轴。我想将左y轴和右y轴对齐到背景网格只有大小相同的框的高度（如第二个屏幕截图所示）。

1 Picture - How the background grid looks like

2 Picture - How the background grid should look like

以下是用于构建图形结构的数据：

      $o = [
            "type" => "line","data" => [
                "labels" => [],"datasets" => []
            ],"options" => [
                "responsive" => true,"title" => [
                    "display" => true,"text" => $map->title
                ],"elements" => [
                    "line" => [
                        "borderWidth" => 1.5
                    ],"point" => [
                        "radius" => 2,"hitRadius" => 2,"hoverRadius" => 3
                    ]
                ],"legend" => [
                    "display" => true,"" => "right","labels" => [
                        "boxWidth" => 16
                    ]
                ],"tooltips" => [
                    "mode" => "index"
                ],"scales" => [
                    "xAxes"=> [
                      "stacked"=> true
                    ],"yAxes"=> [[
                      "stacked"=> true,"position"=> "left","id"=> "y-axis-0","scaleLabel" => [
                        "display" => true,"labelString" => $map->y1Label

                    ]
                    ],[
                      "stacked" => true,"position" => "right","id"=> "y-axis-1","scaleLabel" => [
                      "display" => true,"labelString" => $map->y2Label
                      ]
                    ]]
                ]
            ]
        ];

最诚挚的问候