private void CheckBrowseContourMethod(Bentley.TerrainModelNET.DTM dTM)
{
	ContoursBrowsingDelegate hdl3P = new ContoursBrowsingDelegate(processContours);
	// BrowseContours methods
	ContoursBrowsingCriteria contoursCriteria = new ContoursBrowsingCriteria(1);
	contoursCriteria.SmoothingOption = TerrainModelNET.DTMContourSmoothingMethod.Vertex;//=1

	contoursCriteria.UseOnlyContourValues = true;//获取特定高程等高线
	contoursCriteria.ContourValues = new double[1] { 1460.5 };//unit m

	dTM.BrowseContours(contoursCriteria, hdl3P, null);
}
private bool processContours(DPoint3d[] tPoint, DPoint3d direction, System.Object oArg)
{
	if (tPoint == null)
	{
		return false;
	}
	DgnModel dgnModel = Bentley.MstnPlatformNET.Session.Instance.GetActiveDgnModel();

	CurvePrimitive curvePri = CurvePrimitive.CreateLineString(tPoint);
	//CurveVector curveVec = CurveVector.Create(CurveVector.BoundaryType.Outer);
	Element lineEle = DraftingElementSchema.ToElement(dgnModel, curvePri, null);// UOR Unit

	lineEle.AddToModel();
	return true;
}