Builtin service operation

Websocketserver allows for some pre-configured services, including EnSight and EnVision to be used. This can be used to support 3D remote graphics using EnVision like this:

• Launch websocketserver serving up some web pages (http) on port 28000 and the web socket protocol on port 28001:

bin\cpython.bat nexus###\nexus_launcher\websocketserver.py --http_directory nexus### --http_port 28000 --client_hostname localhost --local_session envision 4 --verbose 1 28001

• In a web browser, browse to this URL:

http://localhost:28000/ansys###/nexus/test/viewer_test_vnc.html

The testing web page will be loaded. The upper panel displays a proxy image which may be clicked to launch a new EnVision session. The lower panel will automatically launch an EnVision session, interactively viewing a 3D dataset.