channel curvature not shown

[Bluenose57]

I thought that if I specified all LOB distances that are say - less than - all my ROB distances, my channel would then be shown as swinging to the left in the direction of flow. ("Left" meaning/assuming that I am looking downstream, of course.) Not so, my HEC RAS channel is shown as having no curvature (plan view, xyz view). Why?

 

[cvg]

when you draw in your river reach, you need to draw it with a curve. otherwise, if it is geo-referenced, it should also show up with a curve