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
Minimum spanning trees
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 nodes 1,2 and 3 are outside the visible simulation 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 Minimum spanning trees 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 nodes 1,2 and 3 are outside the visible simulation window)![bug25](https://user-images.githubusercontent.com/43748830/54490622-64586e00-48dd-11e9-8495-35e3e0114440.png)