This software can be used to view and generate points.
You can also view the connectivity if you have the edge file.
(open a points file first, then load the corresponding connectivity file)


Mode: (insertion mode and edit mode).
You can choose it from Mode menu.
Under insertion mode, just left click to put some nodes. (x and y coordinate will be shown at the status bar)
Under edit mode, you can select a existing node, drag it or delete it.
The selected node will be shown in read. (you can see its id from the status bar)
To drag it, just hold left mouse button, move to desired place and release the button.
To delete a vertex, select it first, and press 'DEL' key.

Pan and Zoom in/out:
Hold the right mouse button, you can move the whole scene.
You can also use mouse wheel to zoom in and zoom out.