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<!DOCTYPE html PUBLIC "-//w3c//dtd html 4.0 transitional//en">
<html>
<head>
<meta http-equiv="Content-Type"
content="text/html; charset=iso-8859-1">
<meta name="GENERATOR"
content="Mozilla/4.79 [en] (X11; U; Linux 2.4.9-34smp i686) [Netscape]">
<title>gfeConfig - PNG Graphical Product Generation</title>
</head>
<body style="background-color: rgb(255, 255, 255);">
<div class="Body">
<div class="3Heading">
<h2 style="text-align: center;">GFE/ifpIMAGE Configuration File<br>
PNG Graphical Product Generation<br>
</h2>
<p>The GIF/PNG graphical product generation software uses the gfe
configuration
file to define the weather elements, clipping, colors, etc.&nbsp; Refer
to the ifpIMAGE product generation guide for more details on how the
configuration
file is used.
<br>
&nbsp;
<br>
&nbsp;
<table nosave="" border="1" cols="5" width="100%">
<tbody>
<tr>
<td>
<center><b>GFE Configuration Item</b></center>
</td>
<td>
<center><b>Applicable to GFE</b></center>
</td>
<td>
<center><b>Applicable to <a href="ifpIMAGE.html"><!--disable indexer-->ifpIMAGE</a></b></center>
</td>
<td>
<center><b>Notes</b></center>
</td>
</tr>
<tr>
<td><a href="#PNGLocalTimeLegend">PNG Local Time Legend</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PNGImageSize">PNG Image Size</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PNGWeatherElementtobeDisplayedasanImage">PNG
Weather Element
to be Displayed as an Image</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PNGImageSmoothing">PNG Image Data Smoothing and
Smooth Clipping</a></td>
<td>YES</td>
<td>YES</td>
<td>This is only applicable for scalar and vector weather
elements.&nbsp;
Do not enable this in a normal GFE configuration file since the
performance
of the GFE will be unacceptable.</td>
</tr>
<tr>
<td><a href="#PNGListofWeatherElementsforDisplay">PNG Weather
Elements
to be Displayed</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PNGLegendDisplay">PNG Legend Display</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PNGLegendWeatherElementName">PNG Weather Element
Name</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PngAlternateWeatherElementName">PNG Alternative
Weather Element
Name</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PNGLegendFormats">PNG Legend Formats</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PngFilenamePrefix">PNG Filename Prefix</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PngFilenameFormat">PNG Filename Format</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PngInterval">PNG Interval and Interval Offset</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PngfitToDataArea">PNG Fit To Data Area</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PngLogoandLogoString">PNG Logo and Logo String</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PngLegendLanguage">PNG Legend Language</a></td>
<td>NO</td>
<td>YES</td>
<td>Can use "french" and "spanish".</td>
</tr>
<tr>
<td><a href="#PngomitColorBar">PNG ColorBar Removal</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PNGZoomDisable">PNG Zoom Disable</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PngHistoryMask">PNG History Mask</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PngInfoFiles">PNG Info Files</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
<tr>
<td><a href="#PngSnapshotTime">PNG Snapshot Time</a></td>
<td>NO</td>
<td>YES</td>
<td>Used typically with Png_interval.</td>
</tr>
<tr>
<td><a href="#PNGFileType">PNG File Type</a></td>
<td>NO</td>
<td>YES</td>
<td><br>
</td>
</tr>
</tbody>
</table>
</p>
</div>
<blockquote>
</blockquote>
<hr style="width: 100%; height: 2px;">
<h4><br>
</h4>
<h4><a name="PNGLocalTimeLegend"></a><font size="+1">PNG Local Time
Legend</font></h4>
The legends on the GFE are normally in GMT or ZULU time.&nbsp; The
generated
PNG imagery can contain legends in either GMT or local time.
<p>Legends display mode 0 for UTC, 1 for local time. Do not include a
decimal
point after the number.
</p>
<p><b><tt>Png_localTime = 1</tt></b> <br>
</p>
<p>&nbsp;
</p>
<h4><a name="PNGImageSize"></a><font size="+1">PNG Image Size</font></h4>
The image size in height and width can be defined for Png imagery. You
only need to set one of these since the other will be automatically
calculated
to preserve the aspect ratio of your office domain.&nbsp; If both the
height
and width are set, the width will be used as the reference dimension.
<p>You can set the height and width (in pixels) for the Png images. It
is only necessary to set one of these, as the other will be calculated
using the aspect ratio of your office domain. Do not include decimal
points
after the numbers. Both default to 400.
</p>
<p><b><tt>Png_height = 400</tt></b>
<br>
<b><tt>Png_width = 400</tt></b> <br>
</p>
<p>&nbsp;
</p>
<h4><a name="PNGWeatherElementtobeDisplayedasanImage"></a><font
size="+1">PNG
Weather Element to be Displayed as an Image</font></h4>
By default, all weather elements displayed in the GFE for graphical
product
generation are displayed as a graphic, e.g., contours for scalars, wind
barbs or arrows for vectors, and bounded areas for weather. If the user
wishes to display one of the weather elements as an image, then this
entry
must be set to the parameter name of the weather element.&nbsp; Only
one
weather element can be an image simultaneously.
<p>If specified with the environment variable below, the weather
element
will be displayed as an image in the png. If nothing is specified here,
then all weather elements will be displayed as a graphic. For
non-surface
based elements, the format is weatherElementName_level_image.
</p>
<p><b><tt>Png_image = 'T'</tt></b> <br>
</p>
<p><a name="PNGSmoothClipping"></a></p>
<p><a name="PNGImageSmoothing"></a><b><font size="+1">PNG Image Data
Smoothing
and Smooth Clipping</font></b>
</p>
<p>Data Smoothing, and Smooth Clipping options are available for Png
images.
The Png_smoothImage indicates if the Png image displayed should be
smoothed
(1 = smoothing enabled, 0 = smoothing disabled).&nbsp; Note that
smoothing
will only apply to scalar and vector images.&nbsp; The Png_smoothClip
(1
= enabled, 0= disabled) provides smoothing clipping to the edit area
mask
defined in <a href="gfeConfig_DB.html#FilteredDataMask">display filter
</a>.
</p>
<p><b><tt>Png_smoothImage = 0</tt></b>
<br>
<b><tt>Png_smoothClip = 0</tt></b>
</p>
<p>The following rules apply if both Png_smoothImage and Png_smoothClip
are used.
<br>
&nbsp;
<table nosave="" border="1" width="100%">
<tbody>
<tr>
<td>
<center><b>DataType</b></center>
</td>
<td>
<center><b>Png_smoothImage</b></center>
</td>
<td>
<center><b>Png_smoothClip</b></center>
</td>
<td>
<center><b>Result</b></center>
</td>
</tr>
<tr>
<td>
<center>SCALAR/VECTOR</center>
</td>
<td>
<center>0</center>
</td>
<td>
<center>0</center>
</td>
<td>No data smoothing, no smooth clipping</td>
</tr>
<tr>
<td>
<center>SCALAR/VECTOR</center>
</td>
<td>
<center>0</center>
</td>
<td>
<center>1</center>
</td>
<td>No data smoothing, clipped to the pixel level of the <a
href="gfeConfig_DB.html#FilteredDataMask">display
filter </a>(mask) indicated, uses the nearest "grid box" for the data</td>
</tr>
<tr>
<td>
<center>SCALAR/VECTOR</center>
</td>
<td>
<center>1</center>
</td>
<td>
<center>0</center>
</td>
<td>Data smoothing, clipped to the pixel level of the <a
href="ifpIMAGE.html#CanImaskcertainareasofthe">display
filter (</a>mask) indicated, uses bi-linear interpolation for the data
values</td>
</tr>
<tr>
<td>
<center>SCALAR/VECTOR</center>
</td>
<td>
<center>1</center>
</td>
<td>
<center>1</center>
</td>
<td>Data smoothing, clipped to the pixel level of the <a
href="ifpIMAGE.html#CanImaskcertainareasofthe">display
filter </a>(mask) indicated, uses bi-linear interpolation for the data
values</td>
</tr>
<tr>
<td>
<center>WEATHER/DISCRETE</center>
</td>
<td>
<center>0</center>
</td>
<td>
<center>0</center>
</td>
<td>No data smoothing, no smooth clipping</td>
</tr>
<tr>
<td>
<center>WEATHER/DISCRETE</center>
</td>
<td>
<center>0</center>
</td>
<td>
<center>1</center>
</td>
<td>No data smoothing, clipped to the pixel level of the <a
href="ifpIMAGE.html#CanImaskcertainareasofthe">display
filter</a> (mask) indicated, uses the nearest "grid box" for the data</td>
</tr>
<tr>
<td>
<center>WEATHER/DISCRETE</center>
</td>
<td>
<center>1</center>
</td>
<td>
<center>0</center>
</td>
<td>No data smoothing, no smooth clipping</td>
</tr>
<tr>
<td>
<center>WEATHER/DISCRETE</center>
</td>
<td>
<center>1</center>
</td>
<td>
<center>1</center>
</td>
<td>No data smoothing, clipped to the pixel level of the <a
href="ifpIMAGE.html#CanImaskcertainareasofthe">display
filter</a> (mask) indicated, uses the nearest "grid box" for the data</td>
</tr>
</tbody>
</table>
<br>
&nbsp;
<br>
&nbsp;
</p>
<h4><a name="PNGListofWeatherElementsforDisplay"></a><font size="+1">PNG
List
of Weather Elements for Display</font></h4>
The user can specify the list of weather elements to be displayed by
specifying
the Png_parms.&nbsp; This entry only applies to the ifpIMAGE program.
<p>The format of each entry is a coded weather element identifier in
the
following format:
<br>
"parmName_level:optType_modelName seq". For example, to display the
QPF surface field for the Official database, the entry would be:
"QPF_SFC:_Official
-1"
</p>
<p><b><tt>Png_parms = ['FzLevel_SFC:_Fcst -1', 'Sky_SFC:_Fcst -1',
'QPF_SFC:_Fcst
-1']</tt></b> <br>
</p>
<p>&nbsp;
</p>
<p><a name="PNGLegendDisplay"></a><b><font size="+1">PNG Legend Display</font></b>
</p>
<p>The legend that appears on the PNG image can be enabled or
disabled.&nbsp;
By default it is enabled.
</p>
<p>This variable allows the ability to turn on/off legends for the
graphic
generation.&nbsp; It applies only to graphic product generation and not
the GFE.&nbsp; It defaults to 'on' if it is not specified.&nbsp; Do not
include a decimal point after the number.
</p>
<p><b><tt>Png_legend = 1</tt></b> <br>
</p>
<p>&nbsp;
</p>
<h4><a name="PNGLegendWeatherElementName"></a><font size="+1">PNG
Legend Weather
Element Name</font></h4>
By default, the weather element name placed on the legend of a PNG
image
is simply the 'SHORT'&nbsp; weather element name, such as "T" for
temperature.&nbsp;
The user can enable this option, which will instead use the long
descriptive
name for the weather element on the legend, such as "Temperature", or
turn
the name off completely.&nbsp; An alternative form of the weather
element
name can be used if the Png_wxname_AltName entries are used in
conjunction
with this entry and this entry is set to "ALT".&nbsp; If "ALT" is
specified,
and the corresponding Png_wxnamd_AltName is not found, then the short
weather
element name is used.
<p>The applicable legend weather element name modes are 'SHORT' for
weather
element name,
<br>
LONG for weather element descriptive name,&nbsp; ALT for alternate,
and OFF for no name.
</p>
<p><b><tt>Png_descriptiveWeName = 'SHORT'</tt></b> <br>
</p>
<p>&nbsp;
</p>
<h4><a name="PngAlternateWeatherElementName"></a><font size="+1">Png
Alternate
Weather Element Name</font></h4>
The Png Alternative Weather Element Name is used to define your own
weather
element name legend for the Png images.&nbsp; For this feature to be
enabled,
you must set the Png_descriptiveName to ALT.
<p>These entries define the weather element name to be displayed based
on the weather element name (e.g., "T").&nbsp; The string format is
Png_WxElem_AltName.
(For non surface-based weather elements, the format is
Png_WxElem_Level_AltName.)&nbsp;For
example, Png_MaxT_AltName = "Highs" will display "Highs" for the Wx
element
name rather than "MaxT" or "Maximum Temperature".&nbsp; If it is not
defined
and 'ALT' is set, then the weather element name will be the 'SHORT'
name.
</p>
<p><b><tt>Png_MaxT_AltName = "Highs"</tt></b> <br>
</p>
<p>&nbsp;
</p>
<h4><a name="PNGLegendFormats"></a><font size="+1">PNG Legend Formats</font></h4>
The legend formats (for both Zulu mode and local time mode) may be
controlled
through the configuration file. The general ordering of each legend
is:&nbsp;
duration + startTime + endTime.&nbsp; Any of these may be disabled or
enabled
through the use of the format strings.&nbsp; By setting a format string
to "", that value is not output.&nbsp; There are separate entries for
the
Zulu and Local Time legends.&nbsp; The formatting entries consist of a
keyword prefixed with an '%'.&nbsp; The software will substitute the
appropriate
value in place of the %keyword in the format string.&nbsp; To add extra
characters, such as spaces or some text (e.g., "to"), simply add those
characters to the format.&nbsp;&nbsp;&nbsp; The following list
specifies
the acceptable formatting entries that are allowed:
<br>
&nbsp;
<table nosave="" border="1" width="100%">
<tbody>
<tr>
<td><tt>%</tt>a</td>
<td>Locale's abbreviated weekday name.</td>
</tr>
<tr>
<td>%A</td>
<td>Locale's full weekday name.</td>
</tr>
<tr>
<td>%b</td>
<td>Locale's abbreviated month name.</td>
</tr>
<tr>
<td>%B</td>
<td>Locale's full month name.</td>
</tr>
<tr>
<td>%c&nbsp;</td>
<td>Locale's appropriate date and time representation.</td>
</tr>
<tr>
<td>%C&nbsp;</td>
<td>The century number (the year divided by 100 and truncated to
an integer)
as a&nbsp;&nbsp; decimal number [00-99].</td>
</tr>
<tr>
<td>%d&nbsp;</td>
<td>Day of the month as a decimal number [01,31].</td>
</tr>
<tr>
<td>%D</td>
<td>Equivalent to the directive string %m/%d/%y.</td>
</tr>
<tr>
<td>%e&nbsp;</td>
<td>Day of the month as a decimal number [1,31], a single digit
is preceded
by a space.</td>
</tr>
<tr>
<td>%h&nbsp;</td>
<td>Equivalent to %b.</td>
</tr>
<tr>
<td>%H&nbsp;</td>
<td>Hour (24-hour clock) as a decimal number [00,23].</td>
</tr>
<tr>
<td>%I&nbsp;</td>
<td>Hour (12-hour clock) as a decimal number [01,12].</td>
</tr>
<tr>
<td>%j&nbsp;</td>
<td>Day of the year as a decimal number [001,366].</td>
</tr>
<tr>
<td>%m&nbsp;</td>
<td>Month as a decimal number [01,12].</td>
</tr>
<tr>
<td>%M&nbsp;</td>
<td>Minute as a decimal number [00,59].</td>
</tr>
<tr>
<td>%n&nbsp;</td>
<td>The New-line character.</td>
</tr>
<tr>
<td>%p&nbsp;</td>
<td>Locale's equivalent of either AM or PM.</td>
</tr>
<tr>
<td>%r&nbsp;</td>
<td>The time in AM and PM notation; in the POSIX locale this is
equivalent
to %I:%M:%S %p.</td>
</tr>
<tr>
<td>%R&nbsp;</td>
<td>The time in 24 hour notation (%H:%M).</td>
</tr>
<tr>
<td>%S&nbsp;</td>
<td>Second as a decimal number [00,61].</td>
</tr>
<tr>
<td>%t&nbsp;</td>
<td>The Tab character.</td>
</tr>
<tr>
<td>%T&nbsp;</td>
<td>The time in hours, minutes, and seconds (%H:%M:%S).</td>
</tr>
<tr>
<td>%u&nbsp;</td>
<td>The weekday as a decimal number [1(Monday),7].</td>
</tr>
<tr>
<td>%U&nbsp;</td>
<td>Week number of the year (Sunday as the first day of the week)
as a
decimal number [00,53].&nbsp; All days in a new year preceding the
first
Sunday are considered to be in week 0.</td>
</tr>
<tr>
<td>%V&nbsp;</td>
<td>The week number of the year (Monday as the first day of the
week) as
a decimal number [01,53].&nbsp; If the week containing January 1st has
four or more days in the new&nbsp; year, then it is considered week 1;
otherwise, it is week 53 of the previous year, and the next week is
week
1.</td>
</tr>
<tr>
<td>%w&nbsp;</td>
<td>Weekday as a decimal number [0(Sunday),6].</td>
</tr>
<tr>
<td>%W&nbsp;</td>
<td>Week number of the year (Monday as the first day of the week)
as a
decimal number [00,53].&nbsp; All days in a new&nbsp; year preceding
the
first Monday are considered to be in week 0.</td>
</tr>
<tr>
<td>%x&nbsp;</td>
<td>Locale's appropriate date representation.</td>
</tr>
<tr>
<td>%X&nbsp;</td>
<td>Locale's appropriate time representation.</td>
</tr>
<tr>
<td>%y&nbsp;</td>
<td>Year without century as a decimal number [00,99].</td>
</tr>
<tr>
<td>%Y&nbsp;</td>
<td>Year with century as a decimal number.</td>
</tr>
<tr>
<td>%Z&nbsp;</td>
<td>Time zone name (or by no characters if no time zone exists).</td>
</tr>
<tr>
<td>%%&nbsp;</td>
<td>The percent (%) character.</td>
</tr>
</tbody>
</table>
<p>In addition to the above list, there are special entries that
are substituted: [UNITS] can be substituted for the units for the
weather
element. Be sure to include the braces. For example, if you wanted the
local time string to be displayed like
<b>Maximum Temperature&nbsp; (F)&nbsp;
12 hours Ending Wed Mar 3, 2000 6:00 PM MST</b>, then the format
strings
would be set up to be:
</p>
<p><b><tt>Png_legendFormat_LT_dur = "([UNITS]) %H hours "</tt></b>
<br>
<b><tt>Png_legendFormat_LT_start = ""</tt></b>
<br>
<b><tt>Png_legendFormat_LT_end = "Ending %a %b %d, %Y&nbsp; %I:%M %p
%Z"</tt></b>
</p>
<p>If the duration, start time, or ending time is not desired, then the
entry should be set to "".&nbsp; Note that there are separate entries
for
Zulu and LocalTime.&nbsp; The duration formats
<br>
can use the %H (hours) %M (minutes) formats.
</p>
<p><b><tt>Png_legendFormat_Zulu_dur = ""</tt></b>
<br>
<b><tt>Png_legendFormat_Zulu_start = "%b %d %H%MZ to "</tt></b>
<br>
<b><tt>Png_legendFormat_Zulu_end = "%b %d %H%MZ"</tt></b>
<br>
<b><tt>Png_legendFormat_LT_dur = ""</tt></b>
<br>
<b><tt>Png_legendFormat_LT_start = "%b %d %I:%M %p %Z"</tt></b>
<br>
<b><tt>Png_legendFormat_LT_end = "%b %d %I:%M %p %Z"</tt></b>
</p>
<p>If <a href="#PngSnapshotTime">Png_snapshotTime</a> is enabled, then
the single time depicted in the legend is the calculated snapshot time
(typically based on <a href="#PngInterval">Png_interval</a> and <a
href="#PngInterval">Png_intervalOffset</a>).&nbsp;
In this case, there are other legend format configuration file entries
that are used:
</p>
<p><b><tt>Png_legendFormat_LT_snapshot = "%b %d %I:%M %p %Z"</tt></b>
<br>
<b><tt>Png_legendFormat_Zulu_snapshot = "%b %d %H%MZ"</tt></b>
<br>
&nbsp;
</p>
<h4><a name="PngFilenamePrefix"></a><font size="+1">Png Filename Prefix</font></h4>
By default, the naming of the png files are <b>yyyymmdd_hhmm.png</b>.&nbsp;&nbsp;
A prefix can be added to the name if desired using the
Png_filenamePrefix
item.&nbsp; For example, if you wanted the filenames to be of a form
Wind_Sky_yyyymmdd_hhmm.png,
you would set the following string in the gfe configuration file:
<p><b><tt>Png_filenamePrefix = 'Wind_Sky_'</tt></b>
</p>
<p>The date/time string can also be changed to a base time and relative
offset from the absolute time.&nbsp; See the <a href="ifpIMAGE.html">ifpIMAGE
User's Manual</a> section on <a
href="ifpIMAGE.html#ChangingtheDateString">date/time
string configuration</a>.
<br>
&nbsp;
</p>
<h4><a name="PngFilenameFormat"></a><font size="+1">Png Filename Format</font></h4>
By default, the naming of the png files are yyyymmdd_hhmm.png.&nbsp;
The
date-time string may be changed to a user-specified format by using the
Png_baseTimeFormat in the gfe configuration file.&nbsp; The possible
set
of values are those defined above in the legend format section.&nbsp;
For
example, if you wanted the filename format to only include the day and
hour, then you could set the entry to:
<p><b><tt>Png_baseTimeFormat = "%d%H"</tt></b>
</p>
<p>If the time of the file is 20010509_1800, then the filename would be
0918.png.&nbsp; See the <a href="ifpIMAGE.html">ifpIMAGE User's Manual</a>
section on <a href="ifpIMAGE.html#ChangingtheDateString">date/time
string
configuration</a>.
<br>
&nbsp;
</p>
<h4><a name="PngInterval"></a><font size="+1">Png Interval and
IntervalOffset</font></h4>
Images can be created at regular at intervals by setting an interval
option
in the ipfIMAGE configuration file.&nbsp;&nbsp; The interval starting
time
can be varied by setting an offset.
<p>By default, png images are generated for each and every possible
change
in the generated grids.&nbsp; For example, if you are generating a grid
for T and WaveHeight, and the T is a one hour grid and the WaveHeight a
6 hour grid, that starts at the same time (e.g., 12z), two different
images
will be generated.&nbsp; The first will have T and WaveHeight together
and will be time stamped to 12z; the second will just have WaveHeight
and
will be time stamped to 13z.&nbsp; This is identical behavior to
running
the GFE with multiple visible weather elements.
</p>
<p>You can override this behavior for the creation of the Png imagery
by
specifying an interval for which to generate imagery.&nbsp; The
interval
is specified in hours.&nbsp; Setting the value to 6 will generate grids
at 00z, 06z, 12z, and 18z, assuming there is data available to generate
the imagery.&nbsp; The configuration line to set the generation to
every
6 hours is shown below:
</p>
<p><b><tt>Png_interval = 6</tt></b>
</p>
<p>To generate images that begin at a starting time other than 00z, you
can specify an interval offset using a configuration
option.&nbsp;&nbsp;
For example, specifying an interval offset of 1 and an interval of 6
(i.e.,
Png_interval = 6) will generate images at 01z,&nbsp; 07z, 13z and
19z.&nbsp;&nbsp;
The default for Png_intervalOffset is 0.
</p>
<p><b><tt>Png_intervalOffset = 1</tt></b>
<br>
&nbsp;
</p>
<h4><a name="PngfitToDataArea"></a><font size="+1">Png_fitToDataArea</font></h4>
The Png_fitToDataArea works in conjunction with a <a
href="gfeConfig_nonWECol.html#InitialColorTableRange">fit
to data algorithm</a>.&nbsp; If the user has specified a "All Grids
over
Area", or "Single Grid over Area", then the ifpIMAGE program needs to
know
which area is to be used.&nbsp; For the GFE, it is always the active
edit
area.&nbsp; For the ifpIMAGE, the concept of an active edit area does
not
exist.&nbsp; The format of the entry is simply the name of the edit
area.
<p><b><tt>Png_fitToDataArea = "BOU"</tt></b>
<br>
&nbsp;
</p>
<h4><a name="PngLogoandLogoString"></a><font size="+1">Png Logo and
Logo String</font></h4>
The ifpIMAGE program can automatically add to the bottom of each image
the NOAA and NWS logos.&nbsp; The Png_logo entry enables the logo and
the
Png_logoString entry defines the text to appear between the two logos.
<p>If Png_logo is set to 1, then a bar containing the noaa and nws
logos
will be inserted at the bottom of the image.
</p>
<p><b><tt>Png_logo = 0</tt></b>
</p>
<p>If Png_logo is enabled, then Png_logoString can be set to a string
you
would
<br>
like to have in the "logo bar".&nbsp; The string will be centered in
the bar.
</p>
<p><b><tt>Png_logoString = ""</tt></b>
<br>
&nbsp;
</p>
<h4><a name="PngLegendLanguage"></a><font size="+1">Png Legend Language</font></h4>
The Png_legendLanguage only affects the legends for the Png
imagery.&nbsp;
If english is desired, then do not use this option.&nbsp; If an
alternate
legend language is desired, then enter that here. Acceptable values
those
defined in the locale command (part of Unix).
<br>
Acceptable languages are "spanish" and "french".
<p><b><tt>Png_legendLanguage = "spanish"</tt></b>
<br>
&nbsp;
</p>
<h4><a name="PngomitColorBar"></a><font size="+1">Png Color Bar Removal</font></h4>
Setting Png_omitColorBar to 1, will omit the color bar in ifpImage
<p><b><tt>Png_omitColorBar = 0</tt></b>
<br>
&nbsp;
</p>
<h4><a name="PNGZoomDisable"></a><font size="+1">Png Zoom Disable</font></h4>
Setting Png_wholeDomain to 1 or yes, will disable the automatic zoom
that
occurs when your data is clipped to a smaller region.&nbsp; The default
is zoom to the clipped data region.
<p><b><tt>Png_wholeDomain = 0</tt></b>
<br>
&nbsp;
</p>
<h4><a name="PngHistoryMask"></a><font size="+1">Png History Mask</font></h4>
Setting Png_historyMask to 1 or yes, will enables the display mask to
follow
the information contained in the Grid Data History of each grid.&nbsp;
When set to 1, the grids will automatically be masked by the site
information
and the background color will be shown for those areas without data.
<p><b><tt>Png_historyMask = 1</tt></b>
<br>
</p>
<blockquote>
<p>&nbsp; </p>
</blockquote>
<h4><a name="PngInfoFiles"></a><font size="+1">Png Info Files</font></h4>
Setting Png_infoFiles to 1 or yes, will enable the creation of the PNG
info files along with the image PNG files.&nbsp; Setting Png_infoFiles
to 0 or no will disable the creation of these files.&nbsp; The default
is to create the Png info files.
<br>
&nbsp;
<p><b><tt>Png_infoFiles = 1</tt></b>
<br>
&nbsp;
</p>
<h4><a name="PngSnapshotTime"></a><font size="+1">Png Snapshot Time</font></h4>
Setting Png_snapshotTime to 1, will change the time displayed on the
PNG
images for each grid from the valid time of the grid, to the snapshot
time.&nbsp;
You can use the <a href="#PNGLegendFormats">legend formats</a> to
control
how the time is formatted.&nbsp; The snapshot time option is normally
used
with the <a href="#PngInterval">Png_interval</a> and <a
href="#PngInterval">Png_intervalOffset</a>
options.&nbsp; Those options create images on a regular basis and thus
are good candidates for displaying the time of the image, rather than
the
valid time of the grid.
<br>
&nbsp;
<p><b><tt>Png_snapshotTime = 1</tt></b>
<br>
&nbsp;
</p>
<h4><a name="PNGFileType"></a><b><font size="+1">Png File Type</font></b></h4>
Defines the type of files that ifpIMAGE will produce. The default is
png.&nbsp;
But you may also choose from the following list.&nbsp; Note that these
are case sensitive and only png, svg, and gif have been really tested.
[ 'png', 'pnm', 'gif', 'svg', 'ai', 'ps', 'cgm', 'fig', 'pcl', 'hpgl',
'regis','tek', 'meta' ]
<p><b><tt>Png_fileType = 'png'</tt></b>
</p>
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