Transcript WDSS-II Training Module I An overview of the WDSS-II display

WDSS-II Training Module I
An overview of the WDSS-II
display
What is WDSS-II?
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Infrastructure to support application
development, data ingest and distribution,
configuration, and output data formats.
Real-time and off-line data integration of data
from multiple radars and other sensors.
Interactive 4D Display designed specifically to
effectively manage and provide rapid access
to the most important information for
decision-making
Multi-sensor Algorithms to detect, diagnose
and predict severe weather events.
The WDSS-II display
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The display is essentially just a GUIbased algorithm
Any data that can be viewed in the
display may be accessed by any other
algorithm!
The WDSS-II display
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The aim of this module is to present the
underlying concepts.
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The version of the display you are using may be
different.
The display is constantly evolving in response to
user feedback and requirements
The knobology may be different
Try to perform the steps as you go through
this presentation
Operating systems
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Red Hat Enterprise 3 and 4
Windows XP (display only)
Starting up rssd
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“rssd” runs as a daemon that controls:
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product notification (lets processes know that a
new product is available to fetch)
Data transfer between machines
Step 1: configure .rssd.conf
Step 2: type “rssd” at command-prompt
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It should run until you reboot the machine – no
need to start it every time
Environment variable RMTPORT to set port
Set RMTPORT to 50000 within NSSL
Starting up rssd
Edit .rssd.conf (in your home directory)
Client: 172.16.*.*
Client: 172.18.*.*
Path: /tmp
Path: /data
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“Client” tells which computers are allowed to
connect to this one
“Path” tells which directories they are allowed
to browse
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No need to include subdirectories (.e.g.
/data/may3) if their containing dir is in the path.
rssd for multiple users
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If you have multiple users on the same
machine:
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set RMTPORT to /tmp:50000
Can use any directory that is worldwriteable
Starting up wg (the WDSS-II
GUI)
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% wg –c myConfigFileName
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% wg
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Starts the WDSSII GUI. Saves your session upon
exit in myConfigFileName
Also, loads the old session from myConfigfileName
on startup.
You can save multiple configurations (e.g.
different settings for archived cases or real-time)
Starts the WDSSII GUI
Uses a default configuration file “.wgpref”
Add “--verbose” to the command line to help
diagnose run-time errors.
Wg Layout
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Each tab (left) controls a
different functionality:
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Control loaded products
Controls for camera /
readout / etc.
Maps
Connect to and manage
data sources
Connecting to a real-time data
source
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At NSSL, there are a number of realtime data sources that can be
connected to very simply:
Click: “Sources” / “Add”
Connecting to a real-time data
source
machine
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Click on the
data source
of interest
Set the
history
(next slide)
Click “add”
Path to the index
Connecting to a real-time data
source: setting the history
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“History” is how many minutes (default =
30) that will be maintained in the index
from the most recent time.
Having a long history (e.g. “All”) can slow
down initial connection times and use
more memory – use only for archived
cases.
For real-time data, use an amount of time
greater than the length of time you expect
to loop.
Connecting to a real-time data
source: additional notes
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An index of existing real-time data sources
may be listed in an XML file and used as
your default selections in the sources page
(see tensor:rindex.xml)
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May be changed in the “preferences” dialogue
Real-time system status page:
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http://tensor/cgi-bin/rupdate/radarUpdate.pl?group=REALTIME
Or just visit the tensor web site and click on
“WDSSII Real-time Radar Status”
Connecting to an existing
archive data source
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Give the source
a name
Enter the
location of the
index file
Select the
protocol (next
slide)
Set the history
to “all”
Data sources: index protocols
Indices are lists of data products and where
they are located (local or remote). WDSSII
natively supports three index protocols:
 xmllb – a “linear buffer” file
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Allows for real-time notification of new products
Has a limited number of records (~ 32000)
xml – a text index file
orpg – an index of ORPG products
Additional types may be added as plug-ins.
Sources: Loading a product
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This is a product list for each source.
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Single click on the product will open up “category”
menu
Double click on product will load the product in the
first category
Click on a time will load the product at that time
Sources: Other notes
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You can delete a source completely if you are finished
with it.
If not using a source, disconnecting may speed things up
on a slower computer or network.
If a real-time source stops updating, then try
reconnecting.
Change the history time by clicking here.
Viewing multiple products in
one window
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Two or more image products from the same
source cannot be viewed in the same window
– one will always be in front. This is
configrable
Images from two different sources may be
overlaid on each other:
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Use hide / only to avoid confusion
The highlighted product in the product
selection tab will always be in front
Viewing multiple products in
one window
Notes on time:
 If browsing backward in
time, the highlighted
product is considered
most recent – newer
data from other sources
will not be displayed
 In Auto Update mode,
simulation time is the
most recent product from
any source
Viewing multiple products in
one window
Controlling the product view:
Don’t show the
highlighted
product
Show only the
highlighted
product
highlighted product
Real-time: Auto update
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Auto Update: listen for new products on an LB an
automatically update to the latest one.
Stepping backward in time will turn off Auto Update
Can use auto-update when doing playback (w2simulator)
also
Looping products
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Turn on a loop for the current window
Looping controls are found under Options /
Preferences
Color Key
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Turns on the color bar for all products in this
window
Can be edited (more on this in a later
session)
Navigating a multi-slice
product
Green = current
volume scan
Red = previous
volume scan
Step back
in time
Step
forward in
time
Step to
Browse up/down most recent
Browse
in “virtual
time
up/down
volume” (most
in current
recent slices) –
volume
this is how most
WDSS-II
algorithms
operate
Multiple windows
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Controlled by “view” in top menu bar
“New Window”: adds an empty new
window
“Set Main Window”: choose which window
is attached to the controls at the bottom
“Main Window” / “All windows”: turn
on/off auto update, auto snapshot, and
color key
Multiple windows: View
Tiled
Tiled without controls
Right side
Navigation: mouse controls
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Pan: left mouse, move in direction
desired
Zoom: middle mouse, move up or down
Pop-up menu: right mouse
Right mouse pop-up menu
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Swap with main window: put this one in the
main window spot and connect to controls
Set product / time / subtype / Auto update /
Loop / Show Color Key / Show readout
-- set these items for this window
Group: sync with other window
Rename: name this window
Take snapshot
Delete this window
Sync Group
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Put multiple windows in the same sync
group” to make them pan / zoom / tilt /
time match, etc.
Flexible, exact synchronization types are
controlled under the preferences
window
Auto Snapshot
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Take a snapshot each time a new
product appears
Controlled by preferences
May be used to automatically generate
static images, e.g. for putting on the
web
Options menu (top bar)
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Data readout options:
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Raw value
Lat / Lon
Azimuth / Range (polar only)
Height MSL and Above Radar Level
Preferences
Options / Preferences /
Windows
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Each Sync group
may be loosely
or complexly
coupled
Options / Preferences /
Snapshot
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Filename naming
convention:
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%p = product name
and subtype
%t = time
%c = count
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Use as an alternative
to %t
Simplifies scripts
Snapshots are what’s
visible in window
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Same size as window
Unless “custom size”
Options / Preferences /
Readout
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Same as options
menu
English / Metric
– controls for
data readout as
well as tables,
range rings, etc.
Options / Preferences /
Display
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Font size for icons,
text
Dynamic slice:
increase value for
higher resolution.
This may slow down
machines with limited
graphic memory.
Level of Detail culling:
keep only the most
important icons as you
zoom out.
Options / Preferences / Cache
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Cache: purely memorydependent. Products
are not preloaded into
the cache. If you like
lots of history or lots of
products, use a bigger
cache. Check memory
usage with "top" and
compare to your
machine's memory
Clear Color Maps if you
edited one of them
Options / Preferences / Paths
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Path to real-time
index location
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This is where the list
of sources for
“Sources / Add” come
from.
Can create similar
file on your machine
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Can collaborate with
others in lab
machine:path-to-xml
Can have multiple
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Separate using ;
Options / Preferences / Loop
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Set the looping
parameters
The bar at the top
gives a visual of
how the loop will
behave
Dynamic cross section / CAPPI
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To begin: choose “Create” / “Dynamic Slice or
CAPPI” on the product navigation menu
Any 3D data field (polar or Lat/Lon) may be
used as input
Dynamic cross section / CAPPI
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Click create
again and
draw a line
with left
mouse
Click “Reset”
to start from
scratch
Dynamic cross section / CAPPI
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Dynamically drag
the small boxes to
change the cross
section:
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Middle box: move
cross section
2nd / 4th boxes:
rotate cross
section
End boxes: move
only this end,
keeping the other
fixed
Dynamic cross section / CAPPI
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Choose “CAPPI”
and draw a box
with left mouse
for a constantaltitude plot
Middle blue bar
or shift-middle
controls altitude
Note altitude at
top
Dynamic cross section / CAPPI
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Shift-left
mouse
controls tilt
Click “plan
view” to go
back to zenith
viewing angle
Dynamic cross section / CAPPI
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Turn off
interpolation
to see
original data
field
B-scan (table readout)
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Check “table” in
the navigation
pane to bring
up a table of
raw data values
Tables, Trends, and Icons
point data
(such as
cell
centroids,
rain
gauges,
etc) are
stored in
tables.
Tables, Trends, and Icons
Two table
types:
 Pop-up
window
 Inview
Tables, Trends, and Icons
Features:
 Past tracks
 Icons (w/
height poles
for 3D view)
 Trends
 Table sort
End of WDSS-II Training
Module I