private float GetRadius(CenterPivot centerPivot)
{
var width = centerPivot.Center.ToUtm().X - centerPivot.EndPoint.ToUtm().X;
return (float)Math.Abs(width);
}
private static CenterPivot LoadCenterPivotPattern(XmlNode lineNode)
{
var pattern = new CenterPivot { GuidancePatternType = GuidancePatternTypeEnum.CenterPivot };
var pointNodes = lineNode.SelectNodes("PNT");
if (pointNodes.Count < 1 || pointNodes.Count > 3)
return null;
pattern.Center = ShapeLoader.LoadPoint(pointNodes[0]);
if (pattern.Center == null)
return null;
pattern.StartPoint = pointNodes.Count > 1 ? ShapeLoader.LoadPoint(pointNodes[1]) : null;
pattern.EndPoint = pointNodes.Count > 2 ? ShapeLoader.LoadPoint(pointNodes[2]) : null;
return pattern;
}
private void ProcessCenterPivot(CenterPivot centerPivot)
{
var delta = _drawingUtil.GetDelta();
var center = centerPivot.Center.ToUtm().ToXy(_drawingUtil.MinX, _drawingUtil.MinY, delta);
var radius = GetRadius(centerPivot);
_drawingUtil.Graphics.DrawEllipse(DrawingUtil.Pen, center.X - radius, center.Y - radius, radius + radius, radius + radius);
}
private static void WritePivot(XmlWriter writer, CenterPivot centerPivot)
{
var line = new LineString { Points = new List<Point>() };
line.Points.Add(centerPivot.Center);
if (centerPivot.StartPoint != null)
{
line.Points.Add(centerPivot.StartPoint);
if (centerPivot.EndPoint != null)
line.Points.Add(centerPivot.EndPoint);
}
ShapeWriter.WriteLine(writer, line, "5");
}
