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StackedColumn 图表中的条形图而不是数据点的鼠标悬停预览

发布于 2024-10-15 22:32:58 字数 123 浏览 3 评论 0原文

我有一个 StackedColumn 图表，我想添加鼠标悬停预览。目前，我正在遍历一系列要点以添加执行此操作的功能。

这使得该列中的每个系列都会进行鼠标悬停/鼠标移出。我希望它为该列执行一次鼠标悬停/鼠标移出。建议？

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谢绝鈎搭 2024-10-22 22:32:58

好吧，这不是一个热门问题。

我偶然发现了CustomizeMapAreas 事件。在那里，我循环遍历 e.MapAreaItems 并调整区域的大小，以便整个列只有一个区域。然后我删除了不再需要的区域。这可能不是最有效的方法，但它就是......

protected void FixStackedColumnAreas(object sender, CustomizeMapAreasEventArgs e)
{
    Dictionary<float, MapArea> newAreas = new Dictionary<float, MapArea>();

    //loop through all areas and collect the Min and Max Y values for each X 
    foreach (MapArea area in e.MapAreaItems)
    {
        if (!newAreas.ContainsKey(area.Coordinates[0]))
        {
            newAreas.Add(area.Coordinates[0], area);
        }
        else
        {
            //get the lowest and highest Y for this X column area
            newAreas[area.Coordinates[0]].Coordinates[1] = Math.Min(newAreas[area.Coordinates[0]].Coordinates[1], area.Coordinates[1]);
            newAreas[area.Coordinates[0]].Coordinates[3] = Math.Max(newAreas[area.Coordinates[0]].Coordinates[3], area.Coordinates[3]);
        }
    }

    //clear out existing areas
    e.MapAreaItems.Clear();

    //put in our new areas that define the whole column area instead of the individual pieces of the column
    foreach (MapArea area in newAreas.Values)
    {
        e.MapAreaItems.Add(area);
    }
}

Ok, not a popular question.

I stumbled across the CustomizeMapAreas event. In there I looped through the e.MapAreaItems and adjusted the size of the areas so that there was just one area for the entire column. Then I removed the areas I didn't need anymore. It's probably not the most efficient way to do it, but here it is...

protected void FixStackedColumnAreas(object sender, CustomizeMapAreasEventArgs e)
{
    Dictionary<float, MapArea> newAreas = new Dictionary<float, MapArea>();

    //loop through all areas and collect the Min and Max Y values for each X 
    foreach (MapArea area in e.MapAreaItems)
    {
        if (!newAreas.ContainsKey(area.Coordinates[0]))
        {
            newAreas.Add(area.Coordinates[0], area);
        }
        else
        {
            //get the lowest and highest Y for this X column area
            newAreas[area.Coordinates[0]].Coordinates[1] = Math.Min(newAreas[area.Coordinates[0]].Coordinates[1], area.Coordinates[1]);
            newAreas[area.Coordinates[0]].Coordinates[3] = Math.Max(newAreas[area.Coordinates[0]].Coordinates[3], area.Coordinates[3]);
        }
    }

    //clear out existing areas
    e.MapAreaItems.Clear();

    //put in our new areas that define the whole column area instead of the individual pieces of the column
    foreach (MapArea area in newAreas.Values)
    {
        e.MapAreaItems.Add(area);
    }
}

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