c# - 使用 map 坐标确定点是否在矩形中

Question

我的大脑今天不工作了。我需要测试一个点(纬度、经度)是否位于 map 上的矩形内。矩形由它的北、东、南和西边界定义。问题是所有点或值都在 map 坐标系中。为了处理日期变更线环绕，我假设如果我们从左到右，经度总是“介于”之间。

bool PointInRectangle(Point pt, double North, double East, double South, double West)
{
    // ????
}

Answer 1

假设东和北为正:

bool PointInRectangle(Point pt, double North, double East, double South, double West)
{
    // you may want to check that the point is a valid coordinate
    if (West < East)
    {
        return pt.X < East && pt.X > West && pt.Y < North && pt.Y > South;
    }

    // it crosses the date line
    return (pt.X < East || pt.X > West) && pt.Y < North && pt.Y > South;        
}