How to add this feature into model editor?

[GoogleCodeExporter]

Hello, everyone, I found oryx-editor online demo have a function that if move 
canvas element, there will be a Vertical or Horizontal line, anyone know this 
feature?

Original issue reported on code.google.com by yuanqi...@gmail.com on 30 Nov 2011 at 3:33

Attachments:

• [2011-11-30 11-26-35.png](https://storage.googleapis.com/google-code-attachments/oryx-editor/issue-495/comment-0/2011-11-30 11-26-35.png)