Provided by: libncarg-dev_6.1.2-7_amd64 bug

NAME

       NGWSYM - Draws a symbol from the standard WMO/NOAA meteorological fonts by reference to
       the font name and symbol number within that font.

SYNOPSIS

       CALL NGWSYM(FTYPE,NUM,X,Y,SIZE,ICOLOR,IALT)

C-BINDING SYNOPSIS

       #include <ncarg/ncargC.h>

       void c_ngwsym(char *ftype, int num, float x, float y,
       float size, int icolor, int ialt)

DESCRIPTION

       FTYPE       (an input parameter of type CHARACTER) specifying the desired font.  Legal
                   values are:

                   'WW'   -  Present weather.

                   'C'    -  Cloud types.

                   'CL'   -  Low clouds.

                   'CM'   -  Medium clouds.

                   'CH'   -  High clouds.

                   'W'    -  Past weather.

                   'N'    -  Sky cover.

                   'a'    -  Pressure tendency.

       NUM         (an input parameter of type INTEGER) specifying the number of the desired
                   symbol within the specified font.

       X           (an input parameter of type REAL) specifying the X coordinate position, in
                   world coordinates, where the symbol is to be positioned.  This X position
                   marks the horizontal center of the symbol.

       Y           (an input parameter of type REAL) specifying the Y coordinate position, in
                   world coordinates, where the symbol is to be positioned.  This Y position
                   marks the vertical center of the symbol.

       SIZE        (an input parameter of type REAL) the value of which is the height, in world
                   coordinates, of the symbol.

       ICOLOR      (an input parameter of type INTEGER) the value of which is the GKS color index
                   specifying what color the symbol will be.

       IALT        (an input parameter of type INTEGER) indicating whether an alternate
                   representation for the specified symbol is to be used.   If IALT=1, then the
                   alternate symbol for the one specified is drawn.  This applies only to a few
                   symbols such as numbers 7, 93, 94, 95, 97 in the WW font and number 3 in the W
                   font.

C-BINDING DESCRIPTION

       The C binding argument descriptions are the same as the FORTRAN argument descriptions.

USAGE

       This function simply looks up the appropriate symbol in either font 36 or 37 of Plotchar
       and uses Plotchar to draw the symbol.

       To produce a table of all the weather symbols broken down by font and symbol number,
       execute "ncargex fngwsym".

       For the WW (present weather) font, the descriptions for the symbols are:

         0   Cloud development NOT observed or NOT observable during past hour

         1   Clouds generally dissolving or becoming less developed during past hour

         2   State of sky on the whole unchanged during past hour

         3   Clouds generally forming or developing during past hour

         4   Visibility reduced by smoke

         5   Haze

         6   Widespread dust in suspension in the air, NOT raised by wind, at time of observation

         7   Dust or sand raised by wind at time of observation

         8   Well-developed dust whirl(s) within past hour

         9   Dust storm or sandstorm within sight of or at station during past hour

        10   Light fog (mist)

        11   Patches of shallow fog at station, NOT deeper than 6 feet on land

        12   More or less continuous shallow fog at station, NOT deeper than 6 feet on land

        13   Lightning visible, no thunder heard

        14   Precipitation within sight, but NOT reaching the ground

        15   Precipitation within sight, reaching the ground but distant from station

        16   Precipitation within sight, reaching the ground, near to but NOT at station

        17   Thunderstorm, but no precipitation at the station

        18   Squall(s) within sight during past hour or at time of observation

        19   Funnel cloud(s) within sight of station at time of observation

        20   Drizzle (NOT freezing) or snow grains (NOT falling as showers) during past hour, but
             NOT at time of observation

        21   Rain (NOT freezing and not falling as showers) during past hour, but NOT at time of
             observation

        22   Snow (NOT falling as showers) during past hour, but NOT at time of observation

        23   Rain and snow or ice pellets (NOT falling as showers) during past hour, but NOT at
             time of observation

        24   Freezing drizzle or freezing rain (NOT falling as showers) during past hour, but NOT
             at time of observation

        25   Showers of rain during past hour, but NOT at time of observation

        26   Showers of snow or of rain and snow, during past hour, but NOT at time of
             observation

        27   Showers of hail or of hail and rain, during past hour, but NOT at time of
             observation

        28   Fog during past hour, but NOT at time of observation

        29   Thunderstorm (with or without precipitation) during past hour, but NOT at time of
             observation

        30   Slight or moderate dust storm or sandstorm, has decreased during past hour

        31   Slight or moderate dust storm or sandstorm, no appreciable change during past hour

        32   Slight or moderate dust storm or sandstorm has begun or increased during past hour

        33   Severe dust storm or sandstorm, has decreased during past hour

        34   Severe dust storm or sandstorm, no appreciable change during past hour

        35   Severe dust storm or sandstorm has begun or increased during past hour

        36   Slight or moderate drifting snow, generally low (less than 6 feet)

        37   Heavy drifting snow, generally low

        38   Slight or moderate blowing snow, generally high (more than 6 feet)

        39   Heavy blowing snow, generally high

        40   For or ice fog at distance at time of observation, but NOT at station during past
             hour

        41   Fog or ice fog in patches

        42   Fog or ice fog, sky discernible, has become thinner during past hour

        43   Fog or ice fog, sky NOT discernible, has become thinner during past hour

        44   Fog or ice fog, sky discernible, no appreciable change during past hour

        45   Fog or ice fog, sky NOT discernible, no appreciable change during past hour

        46   Fog or ice fog, sky discernible, has begun or become thicker during past hour

        47   Fog or ice fog, sky NOT discernible, has begun or become thicker during past hour

        48   Fog depositing rime, sky discernible

        49   Fog depositing rime, sky NOT discernible

        50   Intermittent drizzle (NOT freezing), slight at time of observation

        51   Continuous drizzle (NOT freezing), slight at time of observation

        52   Intermittent drizzle (NOT freezing), moderate at time of observation

        53   Continuous drizzle (NOT freezing), moderate at time of observation

        54   Intermittent drizzle (NOT freezing), heavy at time of observation

        55   Continuous drizzle (NOT freezing), heavy at time of observation

        56   Slight freezing drizzle

        57   Moderate or heavy freezing drizzle

        58   Drizzle and rain, slight

        59   Drizzle and rain, moderate or heavy

        60   Intermittent rain (NOT freezing), slight at time of observation

        61   Continuous rain (NOT freezing), slight at time of observation

        62   Intermittent rain (NOT freezing), moderate at time of observation

        63   Continuous rain (NOT freezing), moderate at time of observation

        64   Intermittent rain (NOT freezing), heavy at time of observation

        65   Continuous rain (NOT freezing), heavy at time of observation

        66   Slight freezing rain

        67   Moderate or heavy freezing rain

        68   Rain or drizzle and snow, slight

        69   Rain or drizzle and snow, moderate or heavy

        70   Intermittent fall of snowflakes, slight at time of observation

        71   Continuous fall of snowflakes, slight at time of observation

        72   Intermittent fall of snowflakes, moderate at time of observation

        73   Continuous fall of snowflakes, moderate at time of observation

        74   Intermittent fall of snowflakes, heavy at time of observation

        75   Continuous fall of snowflakes, heavy at time of observation

        76   Ice prisms (with or without fog)

        77   Snow grains (with or without fog)

        78   Isolated starlike snow crystals (with or without fog)

        79   Ice pellets or snow pellets

        80   Slight rain shower(s)

        81   Moderate or heavy rain shower(s)

        82   Violent rain shower(s)

        83   Slight shower(s) of rain and snow mixed

        84   Moderate or heavy shower(s) of rain and snow mixed

        85   Slight snow shower(s)

        86   Moderate or heavy snow shower(s)

        87   Slight shower(s) of snow pellets, or ice pellets with or without rain, or rain and
             snow mixed

        88   Moderate or heavy shower(s) of snow pellets, or ice pellets, or ice pellets with or
             without rain or rain and snow mixed

        89   Slight shower(s) of hail, with or without rain or rain and snow mixed, not
             associated with thunder

        90   Moderate or heavy shower(s) of hail, with or without rain, or rain and snow mixed,
             not associated with thunder

        91   Slight rain at time of observation; thunderstorm during past hour, but NOT at time
             of observation

        92   Moderate or heavy rain at time of observation; thunderstorm during past hour, but
             NOT at time of observation

        93   Slight snow, or rain and snow mixed, or hail at time of observation; thunderstorm
             during past hour, but NOT at time of observation

        94   Moderate or heavy snow, or rain and snow mixed, or hail at time of observation;
             thunderstorm during past hour, but NOT at time of observation

        95   Slight or moderate thunderstorm without hail, but with rain and/or snow at time of
             observation

        96   Slight or moderate thunderstorm, with hail at time of observation

        97   Heavy thunderstorm, without hail, but with rain and/or snow at time of observation

        98   Thunderstorm combined with dust storm or sandstorm at time of observation

        99   Heavy thunderstorm with hail at time of observation

       For the C (cloud types) font:

         0   Ci - Cirrus

         1   Cc - Cirrocumulus

         2   Cs - Cirrostratus

         3   Ac - Altocumulus

         4   As - Altostratus

         5   Ns - Nimbostratus

         6   Sc - Stratocumulus

         7   St - Stratus

         8   Cu - Cumulus

         9   Cb - Cumulonimbus

       For the CL (low clouds) font:

         0   not defined

         1   Cu of fair weather, little vertical development and seemingly flattened

         2   Cu of considerable development, generally towering, with or without other Cu or Sc
             bases all at same level

         3   Cb with tops lacking clear-cut outlines, but distinctly not cirriform or anvil-
             shaped; with or without Cu, Sc, St

         4   Sc formed by spreading out of Cu; Cu often present also

         5   Sc not formed by spreading out of Cu

         6   St or StFra (stratus fractus), but no StFra of bad weather

         7   StFra and/or CuFra of bad weather (scud)

         8   Cu and Sc (not formed by spreading out of Cu) with bases at different levels

         9   Cb having clearly fibrous (cirriform) top, often anvil-shaped, with or without Cu,
             Sc, St, or scud

       For the CM (medium clouds) font:

         0   not defined

         1   Thin As (most of cloud layer semitransparent)

         2   Thick As, greater part sufficiently dense to hide sun (or moon), or Ns

         3   Thin Ac, mostly semitransparent: cloud elements not changing much and at a single
             level

         4   Thin Ac in patches; cloud elements continually changing and/or occurring at more
             than one level

         5   Thin Ac in bands or in a layer gradually spreading over sky and usually thickening
             as a whole

         6   Ac formed by the spreading out of Cu or Cb

         7   Double-layered Ac, or a thick layer of Ac, not increasing; or Ac with As and/or Ns

         8   Ac in the form of Cu-shaped tufts or Ac with turrets

         9   Ac of a chaotic sky, usually at different levels; patches of dense Ci are usually
             present also

       For the CH (high clouds) font:

         0   not defined

         1   Filaments of Ci, or "mares tails," scattered and not increasing

         2   Dense Ci in patches or twisted sheaves, usually not increasing, sometimes like
             remains of Cb; or towers or tufts

         3   Dense Ci, often anvil-shaped, derived from or associated with Cb

         4   Ci, often hook-shaped, gradually spreading over the sky and usually thickening as a
             whole

         5   Ci and Cs, often in converging bands, or Cs alone; generally overspreading and
             growing denser; the continuous layer not reaching 45 degree altitude

         6   Ci and Cs, often in converging bands, or Cs alone; generally overspreading and
             growing denser; the continuous layer exceeding 45 degree altitude

         7   Veil of Cs covering the entire sky

         8   Cs not increasing and not covering entire sky

         9   Cc alone or Cc with some Ci or Cs, but the Cc being the main cirriform cloud

       For the W (past weather) font:

         0   Clear or few clouds [no associated symbol]

         1   Partly cloudy (scattered) or variable sky [no associated symbol]

         2   Cloudy (broken) or overcast [no associated symbol]

         3   Sandstorm or dust storm, or drifting or blowing snow

         4   Fog, ice fog, thick haze or thick smoke

         5   Drizzle

         6   Rain

         7   Snow, or rain and snow mixed, or ice pellets

         8   Shower(s)

         9   Thunderstorm, with or without precipitation

       For the N (sky cover) font:

         0   No clouds

         1   One-tenth or less

         2   Two-tenths or three-tenths

         3   Four-tenths

         4   Five-tenths

         5   Six-tenths

         6   Seven-tenths or eight tenths

         7   Nine-tenths or overcast with openings

         8   Completely overcast (ten-tenths)

         9   Sky obscured

       For the a (pressure tendency) font:

         0   Rising, then falling; same as or higher than 3 hours ago

         1   Rising, then steady; or rising, then rising more slowly

         2   Rising steadily, or unsteadily

         3   Falling or steady, then rising; or rising, then rising more rapidly

         4   Steady; same as 3 hours ago

         5   Falling, then rising; same as or lower than 3 hours ago

         6   Falling, then steady; or falling, then falling more slowly

         7   Falling steadily, or unsteadily

         8   Steady or rising, then falling; or falling, then falling more rapidly

         9   not defined

EXAMPLES

       CALL NGWSYM('N',5,.5,.5,.25,1,0)
              Plots the symbol for six-tenths cloud cover at position (.5,.5) and height .25 in
              the foreground color.

       CALL NGWSYM('a',6,.2,.8,.3,1,0)
              Plots the symbol for barometric pressure that is falling then steady.

       CALL NGWSYM('WW',95,.5,.5,.2,1,1)
              Plots the alternate symbol for slight or moderate thunderstorm without hail.

              Use the ncargex command to see the following relevant example: fngwsym.

ACCESS

       To use NGWSYM or c_ngwsym, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c,
       preferably in that order.

MESSAGES

       If an illegal font, or symbol number within a font, is requested, then a warning is
       issued.

SEE ALSO

       Online: plotchar(3NCARG), ncarg_cbind(3NCARG)

       Hardcopy: NCAR Graphics Fundamentals, UNIX Version

COPYRIGHT

       Copyright (C) 1987-2009
       University Corporation for Atmospheric Research
       The use of this Software is governed by a License Agreement.