Unidata IDV Workshop for version 6.2u2 > Accessing and Displaying Data > Point Observations
3.7.5 Observation List Display
The Observation List Display Control shows a textual listing of
observation data. We are going to look at some earthquake point data.
- If other displays and data are already loaded, select the
menu item
or the icon in the toolbar to clear them out.
- Load some point data.
- Open the
Data Choosers
.
- In the
Data Chooser
tree click on the
Files
node.
- Go to the point data directory:
/data/idv/point/
.
- Select
earthquake.nc
(Note: not earthquake.csv
)
- Under the
Data Source Type
pulldown menu, select "Netcdf Point Data files"
- Press
Add Source
- Create the display
- In the
Fields
panel select Point Data
.
- In the
Displays
select Point Data List
and press
Create Display
- Modify the displayed fields.
- Press the
Select Fields
button
- We see there are 4 fields shown and one field (
var
) not shown.
- Select
var
and press Add
- Change the order of the fields - select
var
and then press
the up arrow button.
- Press
OK
.
- Modify the listing.
- Toggle
Show Raw Data
- Sort the columns by pressing the
var
column header.
- Figure out what is the maximum depth of the observations.
- Export the data as a text CSV file.
- Use in the
Point Data List
display control.
- Enter
earthquake.csv
- Read in this file from the File Chooser. Make sure you set the
Data Source Type
to "I'm Feeling Lucky"
- Create another
Point Data List
display with this CSV data.
Unidata IDV Workshop for version 6.2u2 > Accessing and Displaying Data > Point Observations