private void UpdateElementSpatialRef()
{
if (null == m_cachedDisplay ||
null == m_nativeSR ||
null == m_triangle ||
null == m_cachedDisplay.DisplayTransformation.SpatialReference)
return;
if (null == m_triangle.SpatialReference)
m_triangle.SpatialReference = m_cachedDisplay.DisplayTransformation.SpatialReference;
m_triangle.Project(m_nativeSR);
RefreshTracker();
}