<!DOCTYPE html
  PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<!--
Copyright (c) 2006 UGS Corp.

All Rights Reserved.

This software and related documentation are proprietary to UGS Corp.
-->
<html>
   <head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <title>Parameters</title>
      <script language="javaScript">
        abridged="false";
        displayConditions=new Array();
      </script>
      <link type="text/css" href="../css/main_styles.css" rel="stylesheet">
   </head>
   <body class="bodydocs" onload="top.pageLoader()" bgcolor="#FFFFFF">
      <div class="title_topic3" id="xps10_pagetitle">Parameters</div>
      <hr noshade="true">
      <div class="title_division">B-spline approximation tolerance (tol.)</div>
      <p class="para_division">The <b class="uiTerm">Face/Edge B-Spline Approximation Tolerance (Tol.)</b> option allows you to specify the upper bound on the distance between the B-spline approximated representation of a face or edge and the corresponding original face or edge when a face or edge must be approximated into a B-spline surface (faces) or a B-spline curve (edges). A recommended value would be to use a value one order of magnitude smaller than the machining tolerance. This will decrease the output file size but still maintain the accuracy usually required. Corresponds to settings file keyword: PA_EDGE_FACE_BSPLINE_APPROX_TOL.
      </p>
      <table border="0">
         <tr>
            <td valign="top" align="left"><img align="left" src="../graphics/note.gif" alt="Note" title="Note"></td>
            <td valign="bottom" align="left" width="100%">
               <div class="para_note">
                  <p class="para_note_body">The system will base the units of the value displayed or entered on the units of the current work part. The value for this field will always write to the .def file as a millimeter value and converts to the appropriate work part units when read by the interface. For .def files written before Unigraphics V15 this value saves as a meter value and will convert to millimeters by the V15 translator as long as the pre-version keyword is available in the .def file.</p>
               </div>
            </td>
         </tr>
      </table>
   </body>
</html>