FIND DATA AND MAP -- locate data and map based on user choice from a DATA LIST

Name

FIND DATA AND MAP -- locate data and map based on user choice from
		a DATA LIST	 

Author

Kathy Pearson, MCNC, kathyp@mcnc.org, (919) 248-9240

Summary

	Name		FIND DATA AND MAP	
	Type		data_input	
	Inputs		none
	Outputs		field name		(string)	
			timestamp name		(string)
			map name		(string)
			map dir			(string)
	Parameters
			Name		Type		Def	Min	Max
			----		----		---	---	---
			filename	(string)	NULL	--	--
			list		(string)	" "	--	--
			go		(oneshot)	0	0	1
			autogo		(toggle)	0	0	1

Inputs

(none)

Outputs

field name	the full path name of the AVS field file
timestamp name	the full path name of the ASCII timestamp file
map name	the full path name of the ASCII map description file
map dir		the name of the directory of the ARCinfo gen map file sources 

Parameters

filename	the full path name of the DATA LIST
list		the list of descriptions for selecting a data set
go		send the output if button is pressed
autogo		send the output if an input or a parameter changes

Description

This module reads from the DATA LIST the top data directory and the top
map directory  (map dir).  Additionally, for each entry in the DATA LIST,
a description is read and displayed as a user choice for selection.  Beside
each description is a list that specifies the data directory within the top
data directory where the information for each entry is located plus the name
of the AVS field, the name of the timestamp file, and the name of the map 
description file.  When a description is selected from the list, the module
creates full path names for the field, timestamp, and map description files
and outputs them along with the top map directory name.  The field name is
passed to the "read field" module.  The timestamp name is passed to the
"READ TIMESTAMP" module, and the map name and map dir outputs are passed to
the "GET MODEL MAP" module.

Example

Related modules

Limitations

See also

(MCNC Visualization Plan)						11/93
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The MCNC Environmental Programs Group has created this module as part of a
suite of AVS demo modules, networks, and sample data sets to demonstrate 
the functionality of its visualization prototype for an Environmental 
Decision Support System (EDSS).  This system provides a unified method of 
analysis and visualization for data output from different environmental air 
quality models.  Remotely, standard output files from the following models 
can be read into AVS:
        ROM (Regional Oxidant Model)
        RADM (Regional Acid Deposition Model), low res and high res
        RADM (Regional Acid Depostion Model) Emissions, low res
        UAM (Urban Airshed Model, regulatory version)
        UAM (Urban Airshed Model, AREAL research version)
        UAM Wind (Urban Airshed Model, regulatory version)
        MCNC ALPHA-Prototype netCDF files
Alternatively, xdr portable binary AVS fields can be created from these
data types and accessed directly from the local workstation.
You can download these modules individually from the IAC using anonymous
ftp to the appropriate directories /avs_modules at avs.ncsc.org.  
If you would like to download the entire suite of modules, networks, and
sample datasets at the same time, the IAC recommends that you use 
anonymous ftp to grab the following file from avs.ncsc.org -
/sample_data/avs_data/MCNC_Env_Pgms/MCNC_Env_Pgms.tar.Z
This contains all source code to all local and remote modules, as well as
all of the sample datasets, networks, documentation, installation, and
usage notes.
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