<!-- Creator : groff version 1.19.2 --> <!-- CreationDate: Wed Jul 14 08:43:39 2010 --> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta name="generator" content="groff -Thtml, see www.gnu.org"> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <meta name="Content-Style" content="text/css"> <style type="text/css"> p { margin-top: 0; margin-bottom: 0; } pre { margin-top: 0; margin-bottom: 0; } table { margin-top: 0; margin-bottom: 0; } </style> <title>PSVELO</title> </head> <body bgcolor="#ffffff"> <h1 align=center>PSVELO</h1> <a href="#NAME">NAME</a><br> <a href="#SYNOPSIS">SYNOPSIS</a><br> <a href="#DESCRIPTION">DESCRIPTION</a><br> <a href="#ARGUMENTS">ARGUMENTS</a><br> <a href="#OPTIONS">OPTIONS</a><br> <a href="#EXAMPLES">EXAMPLES</a><br> <a href="#SEE ALSO">SEE ALSO</a><br> <a href="#REFERENCES">REFERENCES</a><br> <a href="#AUTHORS">AUTHORS</a><br> <hr> <a name="NAME"></a> <h2>NAME</h2> <p style="margin-left:11%; margin-top: 1em">psvelo − Plot velocity vectors, crosses, and wedges on maps</p> <a name="SYNOPSIS"></a> <h2>SYNOPSIS</h2> <p style="margin-left:11%; margin-top: 1em"><b>psvelo</b> <i>files</i> <b>−J</b><i>parameters</i> <b>−R</b><i>west</i>/<i>east</i>/<i>south</i>/<i>north</i>[<b>r</b>] [ <b>−B</b>[<b>p</b>|<b>s</b>]<i>parameters</i> ] [ <b>−D</b><i>sigma_scale</i> ] [ <b>−F</b><i>color</i> ] [ <b>−E</b><i>color</i> ] [ <b>−G</b><i>fill</i> ] [ <b>−H</b>[<b>i</b>][<i>nrec</i>] ] [ <b>−K</b> ] [ <b>−L</b> ] [ <b>−N</b> ] [ <b>−O</b> ] [ <b>−P</b> ] [ <b>−S</b><i>symbol</i>/<i>scale</i>/<i>conf</i>/<i>font_size</i> ] [ <b>−U</b>[<i>just</i>/<i>dx</i>/<i>dy</i>/][<b>c</b>|<i>label</i>] ] [ <b>−V</b> ] [ <b>−W</b><i>pen</i> ] [ <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>−:</b>[<b>i</b>|<b>o</b>] ] [ <b>−c</b><i>copies</i> ]</p> <a name="DESCRIPTION"></a> <h2>DESCRIPTION</h2> <p style="margin-left:11%; margin-top: 1em"><b>psvelo</b> reads data values from <i>files</i> [or standard input] and generates <i>PostScript</i> code that will plot velocity arrows on a map. Most options are the same as for <b><A HREF="psxy.html">psxy</A></b>, except <b>−S</b>. The <i>PostScript</i> code is written to standard output. The previous version (<b>psvelomeca</b>) is now obsolete. It has been replaced by <b>psvelo</b> and <b><A HREF="psmeca.html">psmeca</A></b>.</p> <a name="ARGUMENTS"></a> <h2>ARGUMENTS</h2> <p style="margin-left:11%; margin-top: 1em"><i>files</i> List one or more file-names. If no files are given, <b>psvelo</b> will read standard input.</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>−J</b></p> </td> <td width="8%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">Selects the map projection. Scale is UNIT/degree, 1:xxxxx, or width in UNIT (upper case modifier). UNIT is cm, inch, or m, depending on the <b><A HREF="gmtdefaults.html#MEASURE_UNIT">MEASURE_UNIT</A></b> setting in .gmtdefaults4, but this can be overridden on the command line by appending <b>c</b>, <b>i</b>, or <b>m</b> to the scale/width value. When central meridian is optional, default is center of longitude range on <b>−R</b> option. Default standard parallel is the equator. For map height, max dimension, or min dimension, append <b>h</b>, <b>+</b>, or <b>-</b> to the width, respectively.</p> </td> </table> <p style="margin-left:22%;">More details can be found in the <b><A HREF="psbasemap.html">psbasemap</A></b> man pages.</p> <p style="margin-left:22%; margin-top: 1em"><b>CYLINDRICAL PROJECTIONS:</b></p> <p style="margin-left:22%; margin-top: 1em"><b>−Jc</b><i>lon0/lat0/scale</i> (Cassini) <b><br> −Jcyl_stere</b>/[<i>lon0/</i>[<i>lat0/</i>]]<i>scale</i> (Cylindrical Stereographic) <b><br> −Jj</b>[<i>lon0/</i>]<i>scale</i> (Miller) <b><br> −Jm</b>[<i>lon0</i>/[<i>lat0/</i>]]<i>scale</i> (Mercator) <b><br> −Jm</b><i>lon0/lat0/scale</i> (Mercator - Give meridian and standard parallel) <b><br> −Jo</b>[<b>a</b>]<i>lon0/lat0/azimuth/scale</i> (Oblique Mercator - point and azimuth) <b><br> −Jo</b>[<b>b</b>]<i>lon0/lat0/lon1/lat1/scale</i> (Oblique Mercator - two points) <b><br> −Joc</b><i>lon0/lat0/lonp/latp/scale</i> (Oblique Mercator - point and pole) <b><br> −Jq</b>[<i>lon0/</i>[<i>lat0/</i>]]<i>scale</i> (Cylindrical Equidistant) <b><br> −Jt</b><i>lon0/</i>[<i>lat0/</i>]<i>scale</i> (TM - Transverse Mercator) <b><br> −Ju</b><i>zone/scale</i> (UTM - Universal Transverse Mercator) <b><br> −Jy</b>[<i>lon0/</i>[<i>lat0/</i>]]<i>scale</i> (Cylindrical Equal-Area)</p> <p style="margin-left:22%; margin-top: 1em"><b>CONIC PROJECTIONS:</b></p> <p style="margin-left:22%; margin-top: 1em"><b>−Jb</b><i>lon0/lat0/lat1/lat2/scale</i> (Albers) <b><br> −Jd</b><i>lon0/lat0/lat1/lat2/scale</i> (Conic Equidistant) <b><br> −Jl</b><i>lon0/lat0/lat1/lat2/scale</i> (Lambert Conic Conformal) <b><br> −Jpoly</b>/[<i>lon0/</i>[<i>lat0/</i>]]<i>scale</i> ((American) Polyconic)</p> <p style="margin-left:22%; margin-top: 1em"><b>AZIMUTHAL PROJECTIONS:</b></p> <p style="margin-left:22%; margin-top: 1em"><b>−Ja</b><i>lon0/lat0</i>[<i>/horizon</i>]<i>/scale</i> (Lambert Azimuthal Equal-Area) <b><br> −Je</b><i>lon0/lat0</i>[<i>/horizon</i>]<i>/scale</i> (Azimuthal Equidistant) <b><br> −Jf</b><i>lon0/lat0</i>[<i>/horizon</i>]<i>/scale</i> (Gnomonic) <b><br> −Jg</b><i>lon0/lat0</i>[<i>/horizon</i>]<i>/scale</i> (Orthographic) <b><br> −Jg</b><i>lon0/lat0/altitude/azimuth/tilt/twist/Width/Height/scale</i> (General Perspective). <b><br> −Js</b><i>lon0/lat0</i>[<i>/horizon</i>]<i>/scale</i> (General Stereographic)</p> <p style="margin-left:22%; margin-top: 1em"><b>MISCELLANEOUS PROJECTIONS:</b></p> <p style="margin-left:22%; margin-top: 1em"><b>−Jh</b>[<i>lon0/</i>]<i>scale</i> (Hammer) <b><br> −Ji</b>[<i>lon0/</i>]<i>scale</i> (Sinusoidal) <b><br> −Jkf</b>[<i>lon0/</i>]<i>scale</i> (Eckert IV) <b><br> −Jk</b>[<b>s</b>][<i>lon0/</i>]<i>scale</i> (Eckert IV) <b><br> −Jn</b>[<i>lon0/</i>]<i>scale</i> (Robinson) <b><br> −Jr</b>[<i>lon0/</i>]<i>scale</i> (Winkel Tripel) <b><br> −Jv</b>[<i>lon0/</i>]<i>scale</i> (Van der Grinten) <b><br> −Jw</b>[<i>lon0/</i>]<i>scale</i> (Mollweide)</p> <p style="margin-left:22%; margin-top: 1em"><b>NON-GEOGRAPHICAL PROJECTIONS:</b></p> <p style="margin-left:22%; margin-top: 1em"><b>−Jp</b>[<b>a</b>]<i>scale</i>[<i>/origin</i>][<b>r</b>|<b>z</b>] (Polar coordinates (theta,r)) <b><br> −Jx</b><i>x-scale</i>[<b>d</b>|<b>l</b>|<b>p</b><i>pow</i>|<b>t</b>|<b>T</b>][<i>/y-scale</i>[<b>d</b>|<b>l</b>|<b>p</b><i>pow</i>|<b>t</b>|<b>T</b>]] (Linear, log, and power scaling)</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>−R</b></p> </td> <td width="8%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top"><i>west, east, south,</i> and <i>north</i> specify the Region of interest, and you may specify them in decimal degrees or in [+-]dd:mm[:ss.xxx][W|E|S|N] format. Append <b>r</b> if lower left and upper right map coordinates are given instead of w/e/s/n. The two shorthands <b>−Rg</b> and <b>−Rd</b> stand for global domain (0/360 and -180/+180 in longitude respectively, with -90/+90 in latitude). Alternatively, specify the name of an existing grid file and the <b>−R</b> settings (and grid spacing, if applicable) are copied from the grid.</p></td> </table> <p style="margin-left:22%; margin-top: 1em"><b>−S</b>Selects the meaning of the columns in the data file and the figure to be plotted.</p> <p style="margin-left:11%;"><b>−Se</b><i>velscale/confidence/fontsize</i>.</p> <p style="margin-left:22%;">Velocity ellipses in (N,E) convention. <i>Vscale</i> sets the scaling of the velocity arrows. This scaling gives inches (unless <b>c</b>, <b>i</b>, <b>m</b>, or <b>p</b> is appended). <i>Confidence</i> sets the 2-dimensional confidence limit for the ellipse, e.g., 0.95 for 95% confidence ellipse. <i>Fontsize</i> sets the size of the text in points. The ellipse will be filled with the color or shade specified by the <b>−G</b> option [default transparent]. The arrow and the circumference of the ellipse will be drawn with the pen attributes specified by the <b>−W</b> option. Parameters are expected to be in the following columns:</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>1,2</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">longitude, latitude of station (<b>−:</b> option interchanges order)</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>3,4</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">eastward, northward velocity (<b>−:</b> option interchanges order)</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>5,6</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">uncertainty of eastward, northward velocities (1-sigma) (<b>−:</b> option interchanges order)</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>7</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">correlation between eastward and northward components</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>8</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">name of station (optional).</p> </td> </table> <p style="margin-left:11%;"><b>−Sn</b><i>barscale.</i></p> <p style="margin-left:22%;">Anisotropy bars. <i>Barscale</i> sets the scaling of the bars This scaling gives inches (unless <b>c</b>, <b>i</b>, <b>m</b>, or <b>p</b> is appended). Parameters are expected to be in the following columns:</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>1,2</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">longitude, latitude of station (<b>−:</b> option interchanges order)</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>3,4</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">eastward, northward components of anisotropy vector (<b>−:</b> option interchanges order)</p></td> </table> <p style="margin-left:11%;"><b>−Sr</b><i>velscale/confidence/fontsize</i></p> <p style="margin-left:22%;">Velocity ellipses in rotated convention. <i>Vscale</i> sets the scaling of the velocity arrows. This scaling gives inches (unless <b>c</b>, <b>i</b>, <b>m</b>, or <b>p</b> is appended). <i>Confidence</i> sets the 2-dimensional confidence limit for the ellipse, e.g., 0.95 for 95% confidence ellipse. <i>Fontsize</i> sets the size of the text in points. The ellipse will be filled with the color or shade specified by the <b>−G</b> option [default transparent]. The arrow and the circumference of the ellipse will be drawn with the pen attributes specified by the <b>−W</b> option. Parameters are expected to be in the following columns:</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>1,2</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">longitude, latitude, of station (<b>−:</b> option interchanges order)</p> </td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>3,4</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">eastward, northward velocity (<b>−:</b> option interchanges order)</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>5,6</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">semi-major, semi-minor axes</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>7</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">counter-clockwise angle, in degrees, from horizontal axis to major axis of ellipse.</p> </td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>8</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">name of station (optional)</p> </td> </table> <p style="margin-left:11%;"><b>−Sw</b><i>wedge_scale/wedge_mag</i>.</p> <p style="margin-left:22%;">Rotational wedges. <i>Wedge_scale</i> sets the size of the wedges in inches (unless <b>c</b>, <b>i</b>, <b>m</b>, or <b>p</b> is appended). Values are multiplied by <i>Wedge_mag</i> before plotting. For example, setting <i>Wedge_mag</i> to 1.e7 works well for rotations of the order of 100 nanoradians/yr. Use <b>−G</b> to set the fill color or shade for the wedge, and <b>−E</b> to set the color or shade for the uncertainty. Parameters are expected to be in the following columns:</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>1,2</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">longitude, latitude, of station (<b>−:</b> option interchanges order)</p> </td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>3</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">rotation in radians</p> </td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>4</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">rotation uncertainty in radians</p></td> </table> <p style="margin-left:11%;"><b>−Sx</b><i>cross_scale</i></p> <p style="margin-left:22%;">gives Strain crosses. <i>Cross_scale</i> sets the size of the cross in inches (unless <b>c</b>, <b>i</b>, <b>m</b>, or <b>p</b> is appended). Parameters are expected to be in the following columns:</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>1,2</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">longitude, latitude, of station (<b>−:</b> option interchanges order)</p> </td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>3</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">eps1, the most extensional eigenvalue of strain tensor, with extension taken positive.</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>4</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">eps2, the most compressional eigenvalue of strain tensor, with extension taken positive.</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="4%"> <p style="margin-top: 1em" valign="top"><b>5</b></p></td> <td width="7%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">azimuth of eps2 in degrees CW from North.</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="9%"> <p style="margin-top: 1em" valign="top"><b>−A</b></p> </td> <td width="2%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top"><i>Arrow_width/Head_length/Head_width</i> Size of arrow in inches. [Default is 0.03/0.12/0.09].</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="9%"> <p style="margin-top: 1em" valign="top"><b>−B</b></p> </td> <td width="2%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">Sets map boundary annotation and tickmark intervals; see the <b><A HREF="psbasemap.html">psbasemap</A></b> man page for all the details.</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="9%"> <p style="margin-top: 1em" valign="top"><b>−C</b></p> </td> <td width="2%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">Offset focal mechanisms to the latitude and longitude specified in the last two columns of the input file.</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="9%"> <p style="margin-top: 1em" valign="top"><b>−D</b></p> </td> <td width="2%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top"><i>Sigma_scale</i> can be used to rescale the uncertainties of velocities (<b>−Se</b> and <b>−Sr</b>) and rotations (<b>−Sw</b>). Can be combined with the <i>confidence</i> variable.</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="9%"> <p style="margin-top: 1em" valign="top"><b>−F</b><i>fill</i></p> </td> <td width="2%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">Sets the color or shade used for frame and annotation. [Default is 0/0/0 (black)]</p> </td> <tr valign="top" align="left"> <td width="11%"></td> <td width="9%"> <p style="margin-top: 1em" valign="top"><b>−E</b><i>fill</i></p> </td> <td width="2%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">Sets the color or shade used for filling uncertainty wedges (<b>−Sw</b>) or velocity error ellipses (<b>−Se</b> or <b>−Sr</b>). [If <b>−E</b> is not specified, the uncertainty regions will be transparent.]</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="9%"> <p style="margin-top: 1em" valign="top"><b>−G</b><i>fill</i></p> </td> <td width="2%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">Select filling of ellipses, wedges, and focal mechanisms. By convention, the compressional quadrants of the focal mechanism beach balls are shaded. Set the shade (0−255) or color (r/g/b) [Default is 0/0/0]. Optionally, specify <b>−Gp</b><i>icon_size/pattern</i>, where <i>pattern</i> gives the number of the image pattern (1-90) OR the name of a icon-format file. <i>icon_size</i> sets the unit size in inches. To invert black and white pixels, use <b>−GP</b> instead of <b>−Gp</b>. See <b>pspatterns</b> for information on individual patterns.</p> </td> <tr valign="top" align="left"> <td width="11%"></td> <td width="9%"> <p style="margin-top: 1em" valign="top"><b>−H</b></p> </td> <td width="2%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">Input file(s) has header record(s). If used, the default number of header records is <b><A HREF="gmtdefaults.html#N_HEADER_RECS">N_HEADER_RECS</A></b>. Use <b>−Hi</b> if only input data should have header records [Default will write out header records if the input data have them]. Blank lines and lines starting with # are always skipped.</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="9%"> <p style="margin-top: 1em" valign="top"><b>−K</b></p> </td> <td width="2%"></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="9%"> <p style="margin-top: 1em" valign="top"><b>−L</b></p> </td> <td width="2%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">Draw lines. Ellipses and fault planes will have their outlines drawn using current pen (see <b>−W</b>).</p></td> <tr valign="top" align="left"> <td width="11%"></td> <td width="9%"> <p style="margin-top: 1em" valign="top"><b>−N</b></p> </td> <td width="2%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">Do <b>NOT</b> skip symbols that fall outside the frame boundary specified by <b>−R</b>.</p> </td> </table> <p style="margin-left:22%;">[Default plots symbols inside frame only].</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>−O</b></p> </td> <td width="8%"></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="3%"> <p style="margin-top: 1em" valign="top"><b>−P</b></p> </td> <td width="8%"></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="3%"> <p style="margin-top: 1em" valign="top"><b>−U</b></p> </td> <td width="8%"></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="3%"> <p style="margin-top: 1em" valign="top"><b>−V</b></p> </td> <td width="8%"></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="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">Set pen attributes for velocity arrows, ellipse circumference and fault plane edges.</p> </td> </table> <p style="margin-left:22%;">[Defaults: width = 1, color = 0/0/0, texture = solid].</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>−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>−:</b></p> </td> <td width="4%"></td> <td width="78%"> <p style="margin-top: 1em" valign="top">Toggles between (longitude,latitude) and (latitude,longitude) input and/or output. [Default is (longitude,latitude)]. Append <b>i</b> to select input only or <b>o</b> to select output only. [Default affects both].</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> <a name="EXAMPLES"></a> <h2>EXAMPLES</h2> <p style="margin-left:11%; margin-top: 1em">The following should make big red arrows with green ellipses, outlined in red. Note that the 39% confidence scaling will give an ellipse which fits inside a rectangle of dimension Esig by Nsig.</p> <p style="margin-left:11%; margin-top: 1em"><b>psvelo</b> << END <b>−H</b>2 <b>−R</b>-10/10/-10/10 <b>−W</b>0.25p,red <b>−G</b>green <b>−L −Se</b>0.2/0.39/18 <b>−B</b>1g1 <b>−Jx</b>0.4/0.4 <b>−A</b>0.1/0.3/0.3 <b>−P −V</b> >! test.ps <br> Long. Lat. Evel Nvel Esig Nsig CorEN SITE <br> (deg) (deg) (mm/yr) (mm/yr) <br> 0. -8. 0.0 0.0 4.0 6.0 0.500 4x6 <br> -8. 5. 3.0 3.0 0.0 0.0 0.500 3x3 <br> 0. 0. 4.0 6.0 4.0 6.0 0.500 <br> -5. -5. 6.0 4.0 6.0 4.0 0.500 6x4 <br> 5. 0. -6.0 4.0 6.0 4.0 -0.500 -6x4 <br> 0. -5. 6.0 -4.0 6.0 4.0 -0.500 6x-4 <br> END <br> This example should plot some residual rates of rotation in the Western Transverse Ranges, California. The wedges will be dark gray, with light gray wedges to represent the 2-sigma uncertainties.</p> <p style="margin-left:11%; margin-top: 1em"><b>psvelo</b> <<END <b>−Sw</b>0.4/1.e7 <b>−W</b>0.75p <b>−G</b>darkgray <b>−E</b>lightgray <b>−H</b>1 <b>−D</b>2 <b>−Jm</b>2.2 <b>−R</b>240./243./32.5/34.75 <b>−B</b>f10ma60m/WeSn <b>−P</b> >! test.ps <br> lon lat spin(rad/yr) spin_sigma (rad/yr) <br> 241.4806 34.2073 5.65E-08 1.17E-08 <br> 241.6024 34.4468 -4.85E-08 1.85E-08 <br> 241.0952 34.4079 4.46E-09 3.07E-08 <br> 241.2542 34.2581 1.28E-07 1.59E-08 <br> 242.0593 34.0773 -6.62E-08 1.74E-08 <br> 241.0553 34.5369 -2.38E-07 4.27E-08 <br> 241.1993 33.1894 -2.99E-10 7.64E-09 <br> 241.1084 34.2565 2.17E-08 3.53E-08 <br> END</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="psbasemap.html">psbasemap</A></i>(1), <i><A HREF="psxy.html">psxy</A></i>(1)</p> <a name="REFERENCES"></a> <h2>REFERENCES</h2> <p style="margin-left:11%; margin-top: 1em">Bomford, G., Geodesy, 4th ed., Oxford University Press, 1980.</p> <a name="AUTHORS"></a> <h2>AUTHORS</h2> <p style="margin-left:11%; margin-top: 1em">Kurt Feigl <br> CNRS UMR 5562 <br> Toulouse, France <br> (Kurt.Feigl@.cnes.fr) <br> Genevieve Patau <br> CNRS UMR 7580 <br> Seismology Dept. <br> Institut de Physique du Globe de Paris <br> (patau@ipgp.jussieu.fr)</p> <hr> </body> </html>