Defect description:
The User can create nodes outside the visible simulation window by extending an edge from an already created node
Steps to reproduce the issue:
List of Experiments
Graph Traversals
Simulator
Create a node
Click on the node and drag the cursor outside the simulation window
Expected result:
The user should not be able to create nodes beyond the visible window
Actual result:
The User can create nodes beyond the visible window
Screenshot:
(Here we can see that nodes 1 and 3 are outside the window )
Defect description: The User can create nodes outside the visible simulation window by extending an edge from an already created node
Steps to reproduce the issue: List of Experiments Graph Traversals Simulator Create a node Click on the node and drag the cursor outside the simulation window
Expected result: The user should not be able to create nodes beyond the visible window
Actual result: The User can create nodes beyond the visible window
Screenshot: (Here we can see that nodes 1 and 3 are outside the window )![bug23](https://user-images.githubusercontent.com/43748830/54489984-f9f0ff00-48d7-11e9-92f2-dee2c0884bfc.png)