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Rotation functions added

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Christian Fiedler
2013-11-13 14:39:23 +01:00
parent fa5d2e17e5
commit c7f7566e5a
1 changed files with 25 additions and 0 deletions
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CampusAppWP8/CampusAppWPortalLib8/Model/Utility/MapPoint.cs
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@@ -134,6 +134,31 @@ namespace CampusAppWPortalLib8.Model.Utility
return false;
}
/// <summary> Rotate degrees. </summary>
/// <remarks> Fiedler, 13.11.2013. </remarks>
/// <param name="fixPoint"> The fix point. </param>
/// <param name="angleDeg"> The angle degrees. positive values -> counterclockwise rotation.</param>
/// <returns> A MapPoint. </returns>
public MapPoint RotateDeg(MapPoint fixPoint, double angleDeg)
{
return this.Rotate(fixPoint, angleDeg * (Math.PI / 180));
}
/// <summary> Rotates. </summary>
/// <remarks> Fiedler, 13.11.2013. </remarks>
/// <param name="fixPoint"> The fix point. </param>
/// <param name="angleRad"> The angle radians. positive values -> counterclockwise rotation.</param>
/// <returns> A MapPoint. </returns>
public MapPoint Rotate(MapPoint fixPoint, double angleRad)
{
MapPoint retValue = new MapPoint(0, 0);
retValue.X = fixPoint.X + (this.X - fixPoint.X) * Math.Cos(angleRad) - (this.Y - fixPoint.Y) * Math.Sin(angleRad);
retValue.Y = fixPoint.Y + (this.X - fixPoint.X) * Math.Sin(angleRad) + (this.Y - fixPoint.Y) * Math.Cos(angleRad);
return retValue;
}
#endregion
}
}