GPVIEW(1)

NAME

gpview - quick viewer for the values of a variable specified by a gtool4-type URL.

1.  for 1-dimensional variable, make line plot.

2.  for 2-dimensional variable, make contour/tone plot.

3.  for 3/more-dimensional variable, make contour/tone plot, select first 2D. possible to make animation.

USAGE

The first command form is
    % gpview [options] gturl1 gturl2 gturl3 ...

where the format of the gturl is
    path[@|/]varname[,dimname=pos1[:pos2[:thinning_intv]][,dimname=...]]

The second commnad form is
    % gpview --var url [options] gtfile1 gtfile2 ...

where the format of the url is
    varname[,dimname=pos1[:pos2[:thinning_intv]][,dimname=...]]

OPTIONS

if you want to know more description, please read
    http://ruby.gfd-dennou.org/products/gphys/doc/gpview.html

  GLOBAL OPTIONS

--help:
    print this message.

--var url:
    set the variable name and slicing parameters.

--wsn [1-4]:
    set work staion number. each number represent output device: 1 : X window. 2 : PS file. (named dcl.ps) 3 : Tcl/Tk file. 4 : GTK Windows (depend on dcl-5.3)

--clrmap [1-]:
    set colormap to draw tone/contour.

--itr [1-4,5-7,10-15,20-23,30-33]:
    set axis scale. default is 1.

    • 1 : linear scale for x/y axis

    • 2 : linear scale for x , log scale for y axis

    • 3 : log scale for x , linear scale for y axis

    • 4 : log scale for x/y axis.TP
    --similar [simfac,vxoff,vyoff]: (for 5<=itr<=7) set similarity parameters which are fed in DCL.grssim.

--map_axis [uxc,uyc,rot]:
    (for 10<=itr<=33) set mapping parameters which are fed in DCL.umpcnt.

--map_radius <radius>:
    (for itr>=20) set clipping radius (degree) around the tangential point. Deafault=90.

--xcoord [xcoord]
    name of x-coordinate (use for associate coordinates)

--ycoord [ycoord]
    name of y-coordinate (use for associate coordinates)

--title:
    set title of figure

--aspect <aspect>:
    set aspect ratio of Viewport. default is 2.0.

--noannotate:
    not draw annotations.

--animate/anim <dim>:
    plot animation along <dim>. <dim> must be name of dimension.

--alternate, --Ga:
    enable to backing store.

--nowait, --Gw:
    not wait for any actions if animate

--reverse, --Gr:
    plot animation reversible if animate

--smooth, --Gaw:
    equal to --anlternate && --nowait

--exch:
    exchange(transpose) x/y axis.

--mean <dim>:
    mean along axis <dim>.

--stddev <dim>:
    standard deviation along axis <dim>.

--eddy <dim>:
    deviation from mean along axis <dim>.

--diff:
    calculate the difference of two variables. you must provide two gturls whose size and dimension are same.

--m, --map <map_type>:
    plot map. itr number must be set. this option is neglect if itr number is 1-4. abailable map type is coast_world, border_world, plate_world, state_usa, coast_japan, pref_japan

--operation <math_func>:
    operation of the specified math function on the data. <math_func> should be a math function with one argument such as log10, sqrt, sin, etc.

--time_ax [nil|false|h|ymd]:
    specify type of calendar-type time axis:

    • nil (=> auto slection)

    • false (=> do not use the time axis even if the units of the axis is a time one with since field)

    • "h" (=> like nil, but always use the hour-resolving datetime_ax method in dclext_datetime_ax.rb)

    • "ymd" (=> like "h" but for y-m-d type using DCL.uc[xy]acl).TP
    --xxxx:yyyy=value: specify Dennou Club Library internal variable.

    • "xx" => a package name prefix of DCL (eg. sg=>sgpack)

    • "yy" => a variable name of DCL

    • "value" => value of the DCL variable.SS LINE/MARK OPTIONS

--line:
    make line plot forced. (about first 1D)

--mark:
    make mark plot forced. (about first 1D)

--index:
    set DCL line index, which set the color/thickness of the line primitive. please see DCL documents.

--type:
    set line type.

--range [min:max]
    set min/max value for line plot. min or max must be set.

--overplot
    set number of lines on each figure.

--overplot_color, --Opc
    multiple lines are distinguished with color rather than line type.

  CONTOUR/TONE OPTIONS

--shade:
    make contour and tone plot.

--noshade:
    make contour plot, without tone.

--nocont:
    make tone plot, without contour.

--range [min:max]:
    set min/max value for contour/tone plot. min or max must be set.

--crange:
    set min/max value for contour plot. this is more dominant than --range

--srange:
    set min/max value for tone plot. this is more dominant than --interval/int

--interval,--int [num]:
    set interval value for contour/tone plot. set the number of lines if you set negative value.

--cint:
    set interval value for contour plot. this is more dominant than --interval/int

--sint:
    set interval value for tone plot. this is more dominant than --interval/int.

--levels:
    set values of contour/tone levels.

--clevels:
    set values of contour levels.

--slevels:
    set tone of contour levels.

--patterns:
    set each patterns for tone plot.

--tone [a|e|f|b|c]:
    set tone subroutine:

    • a (=> tone routine is selected automatically depending on the datasize)

    • e (=> DCL.uetone is used)

    • f (=> DCL.uetonf is used)

    • b (=> DCL.uetonb is used)

    • c (=> DCL.uetonc is used).TP
    --nocolorbar: do not draw color bar

--nozero:
    do not draw zero contour

--udsfmt [strings]:
    change contour label format. see UDCNTR/DCL manual for the format.

  EXAMPLES

For a single GPhys variable,
    % gpview data.nc@temp
    % gpview data.nc@temp,lon=130:150,lat=0:90:2
    % gpview --nocont data.nc@temp,lon=130:150,lat=0
    % gpview --noshade data.nc@temp,lon=130:150,lat=0
    % gpview --mean lon data.nc@temp,lon=130:150,lat=0
    % gpview --exch data.nc@temp,lon=130:150,lat=0
    % gpview --animate lon data.nc@temp,lon=130:150
    % gpview --animate lon --alternate data.nc@temp
    % gpview --smooth lon data.nc@temp,lon=130:150
    % gpview --levels 0,10,20,30 --pattern 30999,40999,50999,60999,70999 data.nc@temp
    % gpview --overplot=3 --anim t data.nc@temp,lon=0
    % gpview --mark data.nc@temp,lon=0,lat=0
    % gpview --operation log10 data.nc@temp,lon=0
    % gpview --time_ax false data.nc@temp,lon=0,lat=0

Example to set DCL internal variable,
    % gpview -ud:lmsg=false --itr 5 --exch data.nc@temp,lon=0

For multiple GPhys variables,
    % gpview data1.nc@temp data2.nc@temp
    % gpview data1.nc@temp,lon=130:150 data2.nc@temp,lon=150:170
    % gpview --overplot=3 --anim t data.nc@temp,lon=0 data.nc@temp,lon=10
    % gpview --var temp,lon=130:150 data?.nc
    % gpview --anim t --var temp,lon=130:150 data*.nc

  HISTORY
    2004/12/14  D Tsukahara && T Horinouti(parse_gturl)
    2005/01/08  D Tsukahara (add option --exch and able to invalid value)
    2005/01/09  D Tsukahara (add option --animate, smooth, alternate, index )
    2005/01/10  D Tsukahara (transpose axis with attr "positive:down" ,
                             abailable loopsense_flag. )
    2005/01/10  D Tsukahara (implement GGraph::color_bar, and margin_info,
                             which file name, date, and toolname. )
    2005/01/11  D Tsukahara ( 1. write document about OPTIONS.
                              2. add many options. more info please see document. )
    2005/01/23  S Takehiro  (add option --similar, map_axis)
    2005/02/09  D Tsukahara && M Nakano (add option --reverse, --Gr, --map)
    2005/02/10  D Tsukahara (change option parser (getopts => getoptlong))
    2005/02/24  D Tsukahara (apply --range for line plot)
    2005/06/15  S Takehiro (add option --levels, --clevels, --slevels, --patterns)
    2005/06/17  S Takehiro (missing_value attribute setting removed)
    2005/06/22  S Takehiro (debug, clipping control added to GGraph::annotate)
    2005/06/23  S Takehiro (debug, option --title implemented)
    2005/07/15  S Takehiro (option --noannotate implemented)
    2005/08/07  S Takehiro (option --overplot implemented)
    2005/08/09  S Takehiro && T Horinouchi (add option --help and help function.
                                              URL information corrected. )
    2005/08/23  S Takehiro (multiple Gphys variables plotting
                             and option --var implemented)
    2005/08/23  S Takehiro (common methods to gp* command moved to gpcommon.rb)
    2005/10/30  S Takehiro (option --animate recoverd)
    2005/10/31  S Takehiro (option --smooth bug fixed)
    2006/03/07  M Nakano (option --int bug fixed)
    2007/10/03  S Takehiro (option --nocolorbar implemented)
    2008/04/03  S Takehiro (option --nozero implemented)
    2008/12/14  S Takehiro (option --mark implemented)
    2010/03/10  Y SASAKI (change help block into RD format)
    2011/01/14  T Tanigawa && S Takehiro (option --operation implemented)
    2011/11/04  S Takehiro (option --time_ax implemented)
    2011/11/20  S Takehiro (option --eddy implemented)
    2012/02/19  S Takehiro (description for gturl format updated)
    2013/01/29  T Tanigawa && S Takehiro (calculation of aspect ratio
                                          of viewport improved)
    2013/01/29  S Nishizawa && S Takehiro (sequential operation implemented)
    2014/02/21  Y Naito && S Takehiro (implement DCL internal variable setting,
                                       add option --udsfmt)
    2014/02/21  S Noda && S Takehiro (add option --stddev)
    2014/02/23  S Takehiro (option --tonf is changed to --tone)
    2014/03/05  S Takehiro (add option --map_radius)
    2014/03/10  Y Kawai && S Takehiro (setting labels for contours)
    2014/04/06  S Takehiro (option --map_radius bug fix)
    2014/06/27  S Nishizawa && S Takehiro (add options --xcoord, --ycoord)
    2014/11/28  H Kashimura && S Takehiro (add option --diff, --tone bug fix)
    2014/11/28  Y O Takahashi && S Takehiro (add option --overplot_color, --Opc)