如何更改 BingMaps for Silverlight 中自定义图钉内元素的大小

发布于 2024-12-25 20:12:00 字数 1346 浏览 6 评论 0原文

我有一个包含椭圆的自定义图钉，我想在后面的 C# 代码中以编程方式更改其大小。我可以更改图钉大小，但这会影响它在地图上的位置。

有没有办法让我直接通过渲染变换或直接更改椭圆的高度和宽度来处理椭圆？

这是 xaml：

<map:Pushpin Location="51.4,-0.2" >
    <map:Pushpin.Template>
        <ControlTemplate>
            <Ellipse Width="15" Height="15" Fill="Red" Opacity="0.7" Stroke="Black" StrokeThickness="2.5">
                 <Ellipse.RenderTransform>   
                     <TranslateTransform X="0" Y="18" />
                 </Ellipse.RenderTransform>
             </Ellipse>
         </ControlTemplate>
     </map:Pushpin.Template>
</map:Pushpin>

这是我目前使用的 C#，它更改了图钉大小（当前为随机数）：

private void MapItemsSizeChange()
{
    Random rnd = new Random();
    ScaleTransform pin_st = new ScaleTransform();

    if (mainMap != null)
    {
        foreach (UIElement UI in mainMap.Children)
        {
            if (UI is Pushpin)
            {
                var pin = UI as Pushpin;

                if (pin != null)
                {
                    double x = rnd.Next(5, 20);
                    x = x / 10;

                    pin_st.ScaleX = x;
                    pin_st.ScaleY = x;

                    UI.RenderTransform = pin_st;
                }
            }
        }
    }
}

谢谢大家！

原文

I have a custom pushpin which contains an Ellipse, and I would like to change its size programtically in the C# code behind. I am able to change the pushpin size, however, this affects its location on the map.

Is there a way for me to address the ellipse directly through a render transform or by directly changing its height and width?

Here is the xaml:

<map:Pushpin Location="51.4,-0.2" >
    <map:Pushpin.Template>
        <ControlTemplate>
            <Ellipse Width="15" Height="15" Fill="Red" Opacity="0.7" Stroke="Black" StrokeThickness="2.5">
                 <Ellipse.RenderTransform>   
                     <TranslateTransform X="0" Y="18" />
                 </Ellipse.RenderTransform>
             </Ellipse>
         </ControlTemplate>
     </map:Pushpin.Template>
</map:Pushpin>

Here is the C# I am using at present which changes the Pushpin sizes (currently to a random number):

private void MapItemsSizeChange()
{
    Random rnd = new Random();
    ScaleTransform pin_st = new ScaleTransform();

    if (mainMap != null)
    {
        foreach (UIElement UI in mainMap.Children)
        {
            if (UI is Pushpin)
            {
                var pin = UI as Pushpin;

                if (pin != null)
                {
                    double x = rnd.Next(5, 20);
                    x = x / 10;

                    pin_st.ScaleX = x;
                    pin_st.ScaleY = x;

                    UI.RenderTransform = pin_st;
                }
            }
        }
    }
}

Thanks All!

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