how should glsp gEdge make a turn

[zrwsmd]

for glsp gEdge,how can i make a turn like below Identification section ,or for below diagram,which connection line should i use instead of gEdge(maybe i should custom?)

[rsoika]

It is not very clear to me what you want to achive. But for example you can implement your own Edge View. We do this in our project. Find the example code here. You can also implement your own Router. But this is more complex and from your screenshot it seems not to be necessary.

[planger]

This is very hard for me to debug remote without the code, but I'm pretty sure there are unwanted routing points in your edges. Your edges mustn't have any routing points and the port on the rail must be on the same height as the port (or anchor) on the rectangle. Then the lines would be straight horizontally.
So there is something going on in the GModel that you generate. I recommend to look into that.

[zrwsmd]

when i drag a node and create a connection( do save operation),it have routing point like below screnshot

but how to save this routing point so that next time when i reload model,i can render this routing point(reload and this routing point length is 0 at moment like below screenshot),but my previous saved edge is above screenshot

[zrwsmd]

i find it computedBoundsAction operation which return this routing point,but how this routing point pass to gmodel factory
so that i can update gModel,i guess if this root(below screenshot) call modelstate.updateRoot() method to update root,it may suit my requirement

[planger]

I'm afraid I don't really understand what you want to achieve. Do you want to set the routing points on the server without having the client interfere? If yes, I suggest to configure the polyline edge router on the client and add the routing points in your GModelFactory.
If you want your client to compute a Manhattan style routing (Manhattan routing will compute a route with horizontal and vertical lines from the source to the target point), then the server only sets the source and the target in the GModel and the client computes the route from source to target according to its strategy. If this routing strategy doesn't fit your needs, you can customize it on the client, too.

You can also mix this: the server sets certain fixed routing points and the client applies the routing strategy on top.

From your screenshots, it looks like you have the Manhattan routing configured on the client for this edge type. That means that this router will add routing points according to its routing strategy on the client. In the computed bounds action, the client will then report all computed sizes, positions and the routing point computed on the client to the server. This is why you seem to have two routing points in the GModel in the computed bounds action.

Just reading your last message, where you indicate you can address your requirements if you manipulate the GModel after the computed bounds action:
You can rebind the ComputedBoundActionHandler with a your custom implementation to adjust the GModel after the client has communicated its computed sizes, positions, and routing points and change the GModel again before submitting it back to the client.

But as I said before, I'm not quite sure what your overall goal is.

[zrwsmd]

i drage two node and connect them with Manhattan edge,and i call save model method.it look like below first screenshot

but when i call loadSourceModel method(reload it again) it like below which miss route point

so i mean how can i save this routing point into gModel so that i can render it correctly