can not override export class CreateLdChangeRoutingPointsOperationHandler extends GModelChangeRoutingPointsOperationHandler {

[zrwsmd]

i want to save changed route point into my model state session.but when i write like this and register CreateLdChangeRoutingPointsOperationHandler into diagram-module ,an error occured

[tortmayr]

@zrwsmd
Please post the error message that you received otherwise we cannot help you.
At first glance your code looks correct.

[zrwsmd]

the internet was not very good,here is error message

[zrwsmd]

my original edge route point is like below [{x:170,y:310},{x:170,y:209}]

when i change route point and debug GModelChangeRoutingPointsOperationHandler#executeChangeRoutingPoints() method ,
i found it has changed,

[zrwsmd]

so i think may be i do not need to rewrite this handler,i can get data from model index