GH: gHowl

gHowl is a set of components which extend Grasshopper’s ability to communicate and exchange information with other applications and physical devices.

Download:

gHowl_r46 for GH 0.7.0057 and 0.8.x (works best in 0.8)

Components:

UDP:

UDP Components now have the ability to send and receive to a Multicast group.  To send or receive to a Multicast group, make sure you use the IP Range of 224.0.0.0 – 239.255.255.255.

OSC functionality is provided by the Bespoke OSC Library by Paul Varcholik.

Network Source – Tests the connection of your machine to a network.

UDP Send – Allows the sending of UDP messages over the network.  Also allows the sending of OSC messages to OSC enabled software and hardware devices. (Deleting this component in 0.7.0057 crashes GH / Rhino)

UDP Receive – Allows the sending and receiving of UDP messages.  Also allows the reception of OSC messages and bundles (from Reactivision for example).(Deleting this component in 0.7.0057 crashes GH / Rhino)

OSC Channel – This component allows the storage of a single OSC Channel.  Change the component’s nickname to store that address’ data.

OSC Dispatch – This component allows the storage of data from multiple OSC addresses.

Spreadsheet:
The spreadsheet components leverage the Open Office Calc engine.  You must have Open Office Calc installed in order for these components to work.  These components read and write *.ods, *.xls, and *.xlsx files.  Supports numerical values and strings.

AppChecker – Checks to see whether Open Office Calc or Excel are installed on your computer.

Spreadsheet In – Retrieves spreadsheet data from a file stored on your computer. (Deleting this component after referencing a file in 0.7.0057 crashes GH / Rhino)

Spreadsheet Out – Allows you to write a spreadsheet file. (Deleting this component after writing a file in 0.7.0057 crashes GH / Rhino)

XML:
These components retrieve xml data from local and web sources (such as RSS feeds).

Pachube – Retrieves data from a Pachube feed.  Must have a valid Pachube API. (Deleting this component after making a connection in 0.7.0057 crashes GH / Rhino)

XML Parser – This component parses an XML file stored on your computer or on the web.