本文整理匯總了C#中System.Coordinate.IsEmpty方法的典型用法代碼示例。如果您正苦於以下問題：C# Coordinate.IsEmpty方法的具體用法？C# Coordinate.IsEmpty怎麽用？C# Coordinate.IsEmpty使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Coordinate的用法示例。
在下文中一共展示了Coordinate.IsEmpty方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: TransformToImage
/// <summary>
/// Transforms from world coordinate system (WCS) to image coordinates
/// NOTE: This method DOES NOT take the MapTransform property into account (use <see cref="Map.WorldToImage(GeoAPI.Geometries.Coordinate,bool)"/> instead)
/// </summary>
/// <param name="p">Point in WCS</param>
/// <param name="map">Map reference</param>
/// <returns>Point in image coordinates</returns>
private static Vector2 TransformToImage(Coordinate p, Map map)
{
//if (map.MapTransform != null && !map.MapTransform.IsIdentity)
// map.MapTransform.TransformPoints(new System.Drawing.PointF[] { p });
if (p.IsEmpty())
return new Vector2(float.NaN);
var height = (map.Zoom * map.Size.Height) / map.Size.Width;
var left = map.Center.X - map.Zoom * 0.5;
var top = map.Center.Y + height * 0.5 * map.PixelAspectRatio;
var x = (float)((p.X - left) / map.PixelWidth);
var y = (float)((top - p.Y) / map.PixelHeight);
if (double.IsNaN(x) || double.IsNaN(y))
return new Vector2(float.NaN);
return new Vector2(x, y);
}