

FOR DIGITIZING TIDE GUAGE DATA

Data files should be created in photoshop and saved as tif files.  
The data should be in a file called 'filename.tif'
There are also text files describing the data files called 'filename.lis'


First, run rrquick_look.pro 
1. Open MacX or eXodus on the Mac
2. Make sure the input file in rrquick_look is the filename you want
3. At corona promt type 'idl'  
4. At idl prompt type '@rrquick_look'
5. Make sure there are no errors
rrquick_look outputs to filename.sav

Second, run rrdgt.pro to digitize the data
1. First create a filename.pro file in the /Runs directory
	This is the file which describe the data file, you must give it the 
	time, date, etc.
2. In rrdgt.pro, make sure the input file is your filename.pro file you
	have created
3. At corona prompt type 'idl rrdgt.pro >&! Runs/filename.lis'
rrdgt.pro outputs to Data/filename_line.sav  which is in IDL format
It also creates 4 new files:
a)Runs/filename.lis 		a printout of how the program ran 
				so you can look for errors
b)Runs/filname_o3.ps		a plot of the data with graph units, 
				time and sea level and interpolated 
				lines
c)Runs/filename_3.ps		3 plots of the data - graph units, 
				time and sea level and interpolated 
				lines
d)Runs/filename_original.ps	a color plot of the digitized data 
				over the original with the labels

Third, run rrwrt.pro to convert from IDL format to ASCII
1. At the corona prompt type 'ls -1 Da*/*line.sav > ! files.dat'
	This creates a file which lists all your filename_line.sav files 
	so you can convert all of them in a batch job
2. At the corona prompt type 'idl rrwrt.pro >&! Runs/data960403.lis 
	(enter whatever the date is)
rrwrt.pro outputs to Data/filename_line.dat which is an ASCII file
It also creates a postscript file filename_line.ps which is a plot of the 
	digitized data



