I/O Methods on Time_Object

 

     

TIME_OBJECT * timeobj
char * path

"read-data" reads in the Time_Object description file path/name.to where name is the name of the timeobj instance. g_time_parm_get_data (see section 7.4.1.2) is used to read the parameter data and to create the associated rulers, then "list-alloc" is called (by then "num_of_frames" is known) and all frames are computed.

"read-data" is usually called by "read-in" on class FileList, the default method of the button. The button pops up a file-requester which shows all files with the extension returned by "get-extension", for Time_Step this extension is *.to (its really a pattern and not an extension, but for historic reasons the method is called "get-extension").

All subclasses of Time_Object which use their own input files (with a different extension) have to implement these methods.

   GRAPE(timeobj, "xdr")(xdrp)

TIME_OBJECT * timeobj
XDR * xdrp

Read the timeobj instance from or write is to the XDR stream xdrp. This method should not be called directly, refer to 5.7 (especially 5.7.3) for details.

Only the time variable is not handled by this method. This should be no problem since the time-dependency of the double variables is lost anyway because of Time_Parm "xdr"....