PROCEDURE: tlimit,t1,t2 PURPOSE: defines time range for "tplot" (tplot must be called first) INPUTS: Starting and Ending times. These can be string, double (seconds since 1970), or hours since refdate. If no Input is given then the cursor is used to select times from the most recent time plot. KEYWORD: REFDATE: new TPLOT reference data in seconds (double). FULL: use full limits. LAST: use the last plot's limits. ZOOM: set to a value between 0 (no range in times) and 1 (full time range) to zoom in on the center of the time range. WINDOW: window in which to plot new time range. OLD_TVARS: use this to pass an existing tplot_vars structure and override the one in the tplot_com common block. This can be used to select which window and set of data to define a time range in. NEW_TVARS: returns the tplot_vars structure created when plotting the newly defined time range. DAYS, HOURS, MINUTES, SECONDS: passed to "ctime" for cursor input of time range. SILENT If true, don't print output with x/y values under cursor. Default value for Windows is silent=1, default for others is silent = 0. EXAMPLES: tlimit ; Use the cursor tlimit,'12:30','14:30' tlimit, 12.5, 14.5 tlimit,t,t+3600 ; t must be set previously tlimit,/FULL ; full limits tlimit,/LAST ; previous limits CREATED BY: Davin Larson FILE: tlimit.pro VERSION: 1.26 LAST MODIFICATION: 98/08/06