public static Task Offset(this ILocator locator, double dx, double dy)
{
var center = locator.MapToScreen(locator.Center.Lon, locator.Center.Lat);
center.Offset(-dx, -dy);
var newCenter = locator.ScreenToMap(center.X, center.Y);
return(locator.Locate(locator.Scale, newCenter));
}
public bool RevisePointData(PointD position, int index)
{
if (!IsEffectedSelectedIndex(index))
{
return(false);
}
Point point = _locator.MapToScreen(position.X, position.Y);
var lastPosition = _mapPoints[index];
_mapPoints[index] = position;
RadarArea.Polygon = _mapPoints.ToArray();
_polygon.Points[index] = point;
drawEllipse(_ellipses[index], point);
updateBorder(position.X, position.Y);
if (needUpdateBorder(lastPosition.X, lastPosition.Y))
{
updateAllBorder();
}
return(true);
}