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<title>PSIMAGE</title>
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<h1 align=center>PSIMAGE</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#OPTIONS">OPTIONS</a><br>
<a href="#EXAMPLES">EXAMPLES</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<a name="NAME"></a>
<h2>NAME</h2>
<p style="margin-left:11%; margin-top: 1em">psimage −
To plot images (EPS files or Sun raster files) on maps</p>
<a name="SYNOPSIS"></a>
<h2>SYNOPSIS</h2>
<p style="margin-left:11%; margin-top: 1em"><b>psimage</b>
<i>imagefile</i> [
<b>−W</b>[<b>-</b>]<i>width</i>[/<i>height</i>] |
<b>−E</b><i>dpi</i> ] [
<b>−C</b><i>xpos</i>/<i>ypos</i>[/<i>justify</i>] ] [
<b>−F</b><i>pen</i> ] [
<b>−G</b>[<b>b</b>|<b>f</b>|<b>t</b>]<i>color</i> ] [
<b>−I</b> ] [ <b>−K</b> ] [ <b>−M</b> ] [
<b>−N</b><i>nx</i>[/<i>ny</i>] ] [ <b>−O</b> ] [
<b>−P</b> ] [
<b>−U</b>[<i>just</i>/<i>dx</i>/<i>dy</i>/][<b>c</b>|<i>label</i>]
] [ <b>−V</b> ] [
<b>−X</b>[<b>a</b>|<b>c</b>|<b>r</b>][<i>x-shift</i>[<b>u</b>]]
] [
<b>−Y</b>[<b>a</b>|<b>c</b>|<b>r</b>][<i>y-shift</i>[<b>u</b>]]
] [ <b>−c</b><i>copies</i> ]</p>
<a name="DESCRIPTION"></a>
<h2>DESCRIPTION</h2>
<p style="margin-left:11%; margin-top: 1em"><b>psimage</b>
reads an Encapsulated <i>PostScript</i> 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 <b>−Gp</b> mechanism offered in
most <b><A HREF="GMT.html">GMT</A></b> programs is limited to rasters smaller than
146 by 146). <i><br>
imagefile</i></p>
<p style="margin-left:22%;">This must be an Encapsulated
<i>PostScript</i> (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).</p>
<table width="100%" border=0 rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p style="margin-top: 1em" valign="top"><b>−E</b></p> </td>
<td width="8%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Sets the dpi of the
image in dots per inch, or use <b>−W</b>.</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p style="margin-top: 1em" valign="top"><b>−W</b></p> </td>
<td width="8%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Sets the width (and
height) of the image in plot coordinates (inches, cm, etc.).
If <i>height</i> is not given, the original aspect ratio of
the image is maintained. If <i>width</i> is negative we use
the absolute value and interpolate image to the device
resolution using the <i>PostScript</i> image operator.
Alternatively, use <b>−E</b>.</p></td>
</table>
<a name="OPTIONS"></a>
<h2>OPTIONS</h2>
<p style="margin-left:11%; margin-top: 1em">No space
between the option flag and the associated arguments.</p>
<table width="100%" border=0 rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em" valign="top"><b>−C</b></p> </td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">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].</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em" valign="top"><b>−F</b></p> </td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Draws a rectangular
frame around the image with the given pen [no frame]. (See
SPECIFYING PENS below).</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em" valign="top"><b>−K</b></p> </td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">More
<i>PostScript</i> code will be appended later [Default
terminates the plot system].</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em" valign="top"><b>−M</b></p> </td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Convert color image
to monochrome grayshades using the (television)
YIQ-transformation.</p> </td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em" valign="top"><b>−N</b></p> </td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Replicate the image
<i>nx</i> times horizontally and <i>ny</i> times vertically.
If <i>ny</i> is omitted, it will be identical to <i>nx</i>
[Default is 1/1].</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em" valign="top"><b>−O</b></p> </td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Selects Overlay
plot mode [Default initializes a new plot system].</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em" valign="top"><b>−P</b></p> </td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Selects Portrait
plotting mode [Default is Landscape, see <b><A HREF="gmtdefaults.html">gmtdefaults</A></b>
to change this].</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em" valign="top"><b>−U</b></p> </td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Draw Unix System
time stamp on plot. By adding <i>just/dx/dy/</i>, 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 <i>label</i>, or <b>c</b> (which
will plot the command string.). The <b><A HREF="GMT.html">GMT</A></b> parameters
<b><A HREF="gmtdefaults.html#UNIX_TIME">UNIX_TIME</A></b>, <b><A HREF="gmtdefaults.html#UNIX_TIME_POS">UNIX_TIME_POS</A></b>, and
<b><A HREF="gmtdefaults.html#UNIX_TIME_FORMAT">UNIX_TIME_FORMAT</A></b> can affect the appearance; see the
<b><A HREF="gmtdefaults.html">gmtdefaults</A></b> man page for details. The time string
will be in the locale set by the environment variable
<b>TZ</b> (generally local time).</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em" valign="top"><b>−V</b></p> </td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Selects verbose
mode, which will send progress reports to stderr [Default
runs "silently"].</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em" valign="top"><b>−X
−Y</b></p> </td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Shift plot origin
relative to the current origin by (<i>x-shift,y-shift</i>)
and optionally append the length unit (<b>c</b>, <b>i</b>,
<b>m</b>, <b>p</b>). You can prepend <b>a</b> to shift the
origin back to the original position after plotting, or
prepend <b>r</b> [Default] to reset the current origin to
the new location. If <b>−O</b> is used then the
default (<i>x-shift,y-shift</i>) is (0,0), otherwise it is
(r1i, r1i) or (r2.5c, r2.5c). Alternatively, give <b>c</b>
to align the center coordinate (x or y) of the plot with the
center of the page based on current page size.</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em" valign="top"><b>−c</b></p> </td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Specifies the
number of plot copies. [Default is 1].</p></td>
</table>
<p style="margin-left:11%; margin-top: 1em">These options
are for 1-bit Sun raster images only. They have no effect
when plotting other images or PostScript files.</p>
<table width="100%" border=0 rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p style="margin-top: 1em" valign="top"><b>−Gb</b></p> </td>
<td width="7%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Sets background
color (replace white pixel) of 1-bit images. Use - for
transparency (and set <b>−Gf</b> to the desired
color). (See SPECIFYING COLOR below).</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p style="margin-top: 1em" valign="top"><b>−Gf</b></p> </td>
<td width="7%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Sets foreground
color (replace black pixel) of 1-bit images. Use - for
transparency (and set <b>−Gb</b> to the desired
color). (See SPECIFYING COLOR below).</p></td>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p style="margin-top: 1em" valign="top"><b>−I</b></p> </td>
<td width="7%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">Invert 1-bit image
before plotting. This is what is done when you use
<b>−GP</b> in other GMT programs.</p></td>
</table>
<p style="margin-left:11%; margin-top: 1em">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.</p>
<table width="100%" border=0 rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p style="margin-top: 1em" valign="top"><b>−Gt</b></p> </td>
<td width="7%"></td>
<td width="78%">
<p style="margin-top: 1em" valign="top">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).</p></td>
</table>
<p style="margin-left:11%; margin-top: 1em"><b>SPECIFYING
PENS</b></p>
<table width="100%" border=0 rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p valign="top"><i>pen</i></p></td>
<td width="7%"></td>
<td width="78%">
<p valign="top">The attributes of lines and symbol outlines
as defined by <i>pen</i> is a comma delimetered list of
<i>width</i>, <i>color</i> and <i>texture</i>, each of which
is optional. <i>width</i> can be indicated as a measure
(points, centimeters, inches) or as <b>faint</b>,
<b>thin</b>[<b>ner</b>|<b>nest</b>],
<b>thick</b>[<b>er</b>|<b>est</b>],
<b>fat</b>[<b>ter</b>|<b>test</b>], or <b>obese</b>.
<i>color</i> specifies a gray shade or color (see SPECIFYING
COLOR below). <i>texture</i> is a combination of dashes
‘-’ and dots ‘.’.</p></td>
</table>
<p style="margin-left:11%; margin-top: 1em"><b>SPECIFYING
COLOR</b></p>
<table width="100%" border=0 rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p valign="top"><i>color</i></p></td>
<td width="4%"></td>
<td width="78%">
<p valign="top">The <i>color</i> 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 <b><A HREF="gmtcolors.html">gmtcolors</A></b> manpage for more
information and a full list of color names.</p></td>
</table>
<a name="EXAMPLES"></a>
<h2>EXAMPLES</h2>
<p style="margin-left:11%; margin-top: 1em">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</p>
<p style="margin-left:11%; margin-top: 1em"><b>psimage</b>
scanned_face.ras <b>−W</b>8<b>c</b>/10<b>c</b>
-Gtwhite > image.ps</p>
<p style="margin-left:11%; margin-top: 1em">To include an
Encapsulated <i>PostScript</i> 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</p>
<p style="margin-left:11%; margin-top: 1em"><b>psimage</b>
tiger.eps <b>−C</b>2<b>i</b>/1<b>i</b>/TR
<b>−W</b>3<b>i</b> > image.ps</p>
<p style="margin-left:11%; margin-top: 1em">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</p>
<p style="margin-left:11%; margin-top: 1em"><b>psimage</b>
1_bit.ras <b>−Gb</b>brown <b>−Gf</b>red
<b>−N</b>5 <b>−W</b>1<b>c</b> > image.ps</p>
<a name="SEE ALSO"></a>
<h2>SEE ALSO</h2>
<p style="margin-left:11%; margin-top: 1em"><i><A HREF="GMT.html">GMT</A></i>(1),
<i><A HREF="gmtcolors.html">gmtcolors</A></i>(5), <i><A HREF="psxy.html">psxy</A></i>(1)</p>
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