public IGPSBounds RelevantArea()
{
IGPSBounds area = null;
if (m_TrailRoutes.Count > 0)
{
area = TrailMapPolyline.getGPSBounds(m_TrailRoutes);
}
if (m_TrailPoints.Count > 0)
{
//Normal trails all have the same radius, should not be much difference anyway
float highlightRadius = m_TrailPoints[0].Radius;
IGPSBounds area2 = TrailGPSLocation.getGPSBounds(m_TrailPoints, 2 * highlightRadius);
area = this.Union(area, area2);
}
if (m_SplitPoints.Count > 0)
{
IGPSBounds area2 = SplitGPSLocation.getGPSBounds(m_SplitPoints);
area = this.Union(area, area2);
}
if (m_MarkedTrailRoutes.Count > 0 || m_MarkedTrailRoutesNoShow.Count > 0)
{
IGPSBounds area2 = Union(TrailMapPolyline.getGPSBounds(m_MarkedTrailRoutes),
TrailMapPolyline.getGPSBounds(m_MarkedTrailRoutesNoShow));
area = this.Union(area, area2);
}
return(area);
}