togeomview1

Usage

Overview

togeomview sends a stream of geomview commands, or OOGL-format geometric data, to a cooperating copy of geomview. If geomview is not running, it is automatically started. ('geomview' must be on the $PATH of the user running 'togeomview' in order for this to work.)

Typical usage is:

someprogram | togeomview    (to send commands) or
someprogram-generating-OOGL-data | togeomview -g  (to send geometry) 

i.e. a program pipes geometric data into ``togeomview''; the data is displayed by a copy of geomview run with the -M option and a name matching the one given to togeomview.

Togeomview uses a named pipe in the directory /tmp/geomview to communicate with geomview. If unspecified, the pipe's default name is "OOGL". When sending geometry (-g), a geomview object with the same name as the pipe appears in geomview's object browser.

By default, when no suitable copy of geomview is running, togeomview invokes "geomview" with arguments specifying the appropriate named pipe. A different command may be specified as in:

togeomview OOGL gv -wpos 300x300 -c my_startup_script

which communicates through a pipe named OOGL, and (if necessary) invokes the given gv command. The pipe name is required if a command is specified.

After togeomview has created it, the named pipe may be written as an ordinary file. For example, one could use

togeomview pipename < /dev/null

to invoke a listening copy of geomview, and then run a program which simply wrote to /tmp/geomview/pipename.

Files

/tmp/geomview