ps-lineto.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- splitted from ./en/functions/ps.xml, last change in rev 1.12 -->
<refentry xml:id="function.ps-lineto" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>ps_lineto</refname>
  <refpurpose>Draws a line</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>ps_lineto</methodname>
   <methodparam><type>resource</type><parameter>psdoc</parameter></methodparam>
   <methodparam><type>float</type><parameter>x</parameter></methodparam>
   <methodparam><type>float</type><parameter>y</parameter></methodparam>
  </methodsynopsis>
  <para>
   Adds a straight line from the current point to the given coordinates to the
   current path. Use <function>ps_moveto</function> to set the starting point
   of the line.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>psdoc</parameter></term>
     <listitem>
      <para>
       Resource identifier of the postscript file
       as returned by <function>ps_new</function>.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>x</parameter></term>
     <listitem>
      <para>
       x-coordinate of the end point of the line.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>y</parameter></term>
     <listitem>
      <para>
       y-coordinate of the end point of the line.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Drawing a rectangle</title>
    <programlisting role="php">
<![CDATA[
<?php
$ps = ps_new();
if (!ps_open_file($ps, "rectangle.ps")) {
  print "Cannot open PostScript file\n";
  exit;
}

ps_set_info($ps, "Creator", "rectangle.php");
ps_set_info($ps, "Author", "Uwe Steinmann");
ps_set_info($ps, "Title", "Lineto example");

ps_begin_page($ps, 596, 842);
ps_moveto($ps, 100, 100);
ps_lineto($ps, 100, 200);
ps_lineto($ps, 200, 200);
ps_lineto($ps, 200, 100);
ps_lineto($ps, 100, 100);
ps_stroke($ps);
ps_end_page($ps);

ps_delete($ps);
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>ps_moveto</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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