Provided by: gmt_4.5.11-1build1_amd64 bug

NAME

       psimage - To plot images (EPS files or Sun raster files) on maps

SYNOPSIS

       psimage  imagefile  [  -W[-]width[/height] | -Edpi ] [ -Cxpos/ypos[/justify] ] [ -Fpen ] [
       -G[b|f|t]color  ]  [  -I  ]  [  -K  ]  [  -M  ]  [  -Nnx[/ny]  ]  [  -O  ]  [   -P   ]   [
       -U[just/dx/dy/][c|label]  ]  [  -V ] [ -X[a|c|r][x-shift[u]] ] [ -Y[a|c|r][y-shift[u]] ] [
       -ccopies ]

DESCRIPTION

       psimage reads an Encapsulated PostScript file or a 1, 8, 24, or 32-bit Sun raster file and
       plots  it  on  a map.  The image can be scaled arbitrarily, and 1-bit raster images can be
       (1) inverted, i.e., black  pixels  (on)  becomes  white  (off)  and  vice  versa,  or  (2)
       colorized,  by  assigning  different  foreground  and  background  colors,  and  (3)  made
       transparent where one of back- or foreground is painted only. As an option, the  user  may
       choose  to  convert  colored raster images to grayscale using TV's YIQ-transformation.  In
       case of 8-, 24- or 32-bit Sun raster files, the user can select which  color  to  be  made
       transparent.   The  user  may  also  choose to replicate the image which, when preceded by
       appropriate clip paths, may allow larger custom-designed fill patterns to  be  implemented
       (the  -Gp mechanism offered in most GMT programs is limited to rasters smaller than 146 by
       146).

       imagefile
              This must be an Encapsulated PostScript (EPS) file or a Sun raster  file.   An  EPS
              file must contain an appropriate BoundingBox.  A raster file can have a depth of 1,
              8, 24, or 32 bits. Old-style, Standard,  Run-length-encoded,  and  RGB  Sun  raster
              files  are  supported.   Other  raster formats can be converted to Sun format via a
              variety of public-domain software (e.g., convert, xv).

       -E     Sets the dpi of the image in dots per inch, or use -W.

       -W     Sets the width (and height) of the image in plot coordinates  (inches,  cm,  etc.).
              If  height  is not given, the original aspect ratio of the image is maintained.  If
              width is negative we use the absolute value and interpolate  image  to  the  device
              resolution using the PostScript image operator.  Alternatively, use -E.

OPTIONS

       No space between the option flag and the associated arguments.

       -C     Sets  position of the image in plot coordinates (inches, cm, etc.) from the current
              origin of the plot.  By default, this defines the position of the lower left corner
              of the image, but this can be changed by specifying justification [0/0/BL].

       -F     Draws  a  rectangular  frame  around the image with the given pen [no frame].  (See
              SPECIFYING PENS below).

       -K     More PostScript code will be appended later [Default terminates the plot system].

       -M     Convert  color  image  to  monochrome  grayshades  using  the   (television)   YIQ-
              transformation.

       -N     Replicate  the  image  nx  times  horizontally  and  ny times vertically.  If ny is
              omitted, it will be identical to nx [Default is 1/1].

       -O     Selects Overlay plot mode [Default initializes a new plot system].

       -P     Selects Portrait plotting mode [Default is Landscape,  see  gmtdefaults  to  change
              this].

       -U     Draw  Unix  System time stamp on plot.  By adding just/dx/dy/, the user may specify
              the justification of the stamp and where the stamp should fall on the page relative
              to  lower  left  corner of the plot.  For example, BL/0/0 will align the lower left
              corner of the time stamp with the lower  left  corner  of  the  plot.   Optionally,
              append  a  label,  or  c (which will plot the command string.).  The GMT parameters
              UNIX_TIME, UNIX_TIME_POS, and UNIX_TIME_FORMAT can affect the appearance;  see  the
              gmtdefaults man page for details.  The time string will be in the locale set by the
              environment variable TZ (generally local time).

       -V     Selects verbose mode, which will send progress  reports  to  stderr  [Default  runs
              "silently"].

       -X -Y  Shift  plot  origin  relative  to  the  current  origin  by  (x-shift,y-shift)  and
              optionally append the length unit (c, i, m, p).  You can prepend  a  to  shift  the
              origin  back  to  the  original position after plotting, or prepend  r [Default] to
              reset the current origin to the new location.  If -O is used then the  default  (x-
              shift,y-shift)   is   (0,0),   otherwise  it  is  (r1i,  r1i)  or  (r2.5c,  r2.5c).
              Alternatively, give c to align the center coordinate (x or y) of the plot with  the
              center of the page based on current page size.

       -c     Specifies the number of plot copies. [Default is 1].

       These  options  are  for  1-bit Sun raster images only.  They have no effect when plotting
       other images or PostScript files.

       -Gb    Sets  background  color  (replace  white  pixel)  of  1-bit  images.   Use  -   for
              transparency (and set -Gf to the desired color).  (See SPECIFYING COLOR below).

       -Gf    Sets   foreground  color  (replace  black  pixel)  of  1-bit  images.   Use  -  for
              transparency (and set -Gb to the desired color).  (See SPECIFYING COLOR below).

       -I     Invert 1-bit image before plotting. This is what is done when you use -GP in  other
              GMT programs.

       These  options  are  for  8-, 24-, and 32-bit Sun raster images only.  They have no effect
       when plotting 1-bit images or PostScript files.

       -Gt    Assigns the color that is to be made transparent.  Sun Raster files do not  support
              transparency, so indicate here which color to be made transparent.  (See SPECIFYING
              COLOR below).

   SPECIFYING PENS
       pen    The attributes of  lines  and  symbol  outlines  as  defined  by  pen  is  a  comma
              delimetered list of width, color and texture, each of which is optional.  width can
              be  indicated  as  a  measure  (points,   centimeters,   inches)   or   as   faint,
              thin[ner|nest],  thick[er|est],  fat[ter|test],  or  obese.  color specifies a gray
              shade or color (see SPECIFYING COLOR below).  texture is a  combination  of  dashes
              `-' and dots `.'.

   SPECIFYING COLOR
       color  The color of lines, areas and patterns can be specified by a valid color name; by a
              gray shade (in the range 0-255); by a decimal color  code  (r/g/b,  each  in  range
              0-255;  h-s-v,  ranges  0-360,  0-1,  0-1;  or c/m/y/k, each in range 0-1); or by a
              hexadecimal color code (#rrggbb, as used in HTML).  See the gmtcolors  manpage  for
              more information and a full list of color names.

EXAMPLES

       To  plot the image contained in the 8-bit raster file scanned_face.ras, scaling it to 8 by
       10  cm  (thereby  possibly  changing  the  aspect  ratio),  and  making  the  white  color
       transparent, use

       psimage scanned_face.ras -W 8c/10c -Gtwhite > image.ps

       To include an Encapsulated PostScript file tiger.eps with its upper right corner 2 inch to
       the right and 1 inch up from the current location, and have its width scaled to 3  inches,
       while keeping the aspect ratio, use

       psimage tiger.eps -C 2i/1i/TR -W 3i > image.ps

       To  replicate the 1-bit raster image template 1_bit.ras, colorize it (brown background and
       red foreground), and setting each of 5 by 5 tiles to be 1 cm wide, use

       psimage 1_bit.ras -Gb brown -Gf red -N 5 -W 1c > image.ps

SEE ALSO

       GMT(1), gmtcolors(5), psxy(1)