How to make a link straight?

GoJS
1

My link routing is AvoidsNodes. I want the link will be straight line after i drag the mouse from any port and drag it forward direction.when i will drag my mouse pointer any other direction,that time only the link will change its direction
.

2

Now, my link is coming like this.

postp2.PNG797×346 1.26 KB

I want this a straight line with out normal routing.

3

AvoidsNodes routing is always orthogonal – all segments are either horizontal or vertical.

4

can i write customRouting class??

5

Sure, there are several example subclasses inheriting from go.Link throughout the samples and extensions, overriding methods that get called as part of Link.computePoints