User Macro Document - Interp2D

<table cellspacing="0" cellpadding="0"> <tr height="150"> <td align="left"><img src="../../../../img/logo.gif" alt="IAC logo"></img></td> <td width="100%" rowspan="2" align="left" valign="center"> <table cellspacing="0" cellpadding="0"> <tr> <td> <table class="navigate_doc" width="100%" border="0" align="center"> <tr bgcolor="c6c6e0" align="center"> <th nowrap width="1%" height="32">P0173</th> <th nowrap width="98%">Krig</th> <th nowrap width="1%">9th November 2001</th> </tr> <tr> <td align="left" colspan="3"> <p><b>Authors:</b> Mark Lambert, Roger Fleuty, Ian Curington, AVS Inc.; Ma YingLiang, MVC; Andrew Dodd, IAC <b>Version:</b> 1.1 <b>Path:</b> iac_proj/krig/</p> <a href="../../filters.shtml" target="_top"><img src="../../../../img/filter.gif" width="44" height="30" border="0" alt="Filters"></a> <a href="interp2D.shtml" target="_top"> <img src="../../../../img/doc_umac.gif" border="0" width="30" height="30" alt="User Macro Document - Interp2D"></a> <a href="krig2D.shtml" target="_top"> <img src="../../../../img/doc_umac.gif" border="0" width="30" height="30" alt="User Macro Document - Krig2D"></a> <a href="krig3D.shtml" target="_top"> <img src="../../../../img/doc_umac.gif" border="0" width="30" height="30" alt="User Macro Document - Krig3D"></a> <a href="source/filters/krig/krig.tar.gz"> <img src="../../../../img/targz.gif" border="0" width="52" height="30" alt="Archive - krig.tar.gz"></a> <a href="source/filters/krig/krig.tar.Z"> <img src="../../../../img/tarz.gif" border="0" width="52" height="30" alt="Archive - krig.tar.Z"></a> <a href="source/filters/krig/krig.zip"> <img src="../../../../img/zip.gif" border="0" width="52" height="30" alt="Archive - krig.zip"></a> <img src="../../../../img/note.gif" width="15" height="30" alt="Windows Only"> </td> </tr> </table> <br> </td> </tr> <tr> <td>  <h1>Interp2D</h1> <h3>Synopsis</h3> <p>Advanced interpolation modules using polynomial and statistically based on kriging methods in 2D and 3D.</p> <p> <h4>Input Ports</h4> <table class="parameters"> <tr> <td width="100"><b>Name</b></td> <td width="150"><b>Type</b></td> <td width="425"><b>Description</b></td> </tr> <tr> <td colspan="4"><hr></td> </tr> <tr> <td width="100"><i>in_fld</i></td> <td width="80">Mesh+Node_Data</td> <td width="425">2D scatter points</td> </tr> <tr> <td colspan="4"><hr></td> </tr> </table> <h4>Parameters</h4> <table class="parameters"> <tr> <td width="100"><b>Name</b></td> <td width="80"><b>Type</b></td> <td width="425"><b>Description</b></td> </tr> <tr> <td colspan="4"><hr></td> </tr> <tr> <td width="100"><i>num_x</i></td> <td width="80">int</td> <td width="425">number of grid nodes in x direction</td> </tr> <tr> <td width="100"><i>num_y</i></td> <td width="80">int</td> <td width="425">number of grid nodes in y direction</td> </tr> <tr> <td colspan="4"><hr></td> </tr> </table> <h4>Output Ports</h4> <table class="parameters"> <tr> <td width="100"><b>Name</b></td> <td width="80"><b>Type</b></td> <td width="425"><b>Description</b></td> </tr> <tr> <td colspan="4"><hr></td> </tr> <tr> <td width="100"><i>out_fld</i></td> <td width="80">Mesh+Node_Data</td> <td width="425">2D gridded data</td> </tr> <tr> <td colspan="4"><hr></td> </tr> </table> </p> <h3>Description</h3> The Krig set of modules perform scatter to grid interpolation. They arein_fld based on the Toolmaster interpolation system, using both simple and Kriging methods. As these routines are already part of the AVS/Express runtime environment, these modules provide high-level Field wrappers around these interpolation functions. Three macro modules are provided in this Krig library: <p><b><i>Interp2D</i></b> - Interpolation from 2D scatter points and data values to a 2D uniform grid <p>Approximates the value of a bivariate function at the grid nodes on a regular 2D grid. Distance weighted interpolation is used to map scatter point values, while the grid is smoothed using a quadratic interpolation function.</p> <h3>Inputs</h3> <p><b><i>in_fld</i></b></p> <p>2D scatter points which combine a mesh and some node data. A Node_Data object represents the values of some dataset at the node points of a field, while the Mesh represents the locations of that field's nodes in space. </p> <h3>Outputs</h3> <p><b><i>in_fld</i></b></p> <p>2D uniform grid. The Values at the grid-points are approximated avalues of a bivariate function.</p> <h3> Utility Macros</h3> <p> The Interp2D macro uses the agxint low-level module. This modules uses the XuGriddingLocalFitCalc and other functions of the the Toolmaster agX library. </p> <h3>Files</h3> <p><i>iac_proj/krig/krigmods.v</i> contains the V definition of the agxint,XuKrigging2D and XuKrigging3D modules.</p> <p><i>iac_proj/krig/krigmacs.v</i> contains the V definitions of the Krig2D,Interp2D and Krig macros.</p> <p><i>iac_proj/krig/krigapps.v</i> contains the V definition of the KrigApps example application.</p> <h3> Other Notes</h3>  See the documentation for <b><i>XuKriging2DCalc,  XuKriging3DCalc,  XuGriddingLocalFitCalc </i></b>in the Toolmaster agX Reference Manual. <h3>Authors</h3> <p> <pre> Mark Lambert, Roger Fleuty, Ian Curington </pre> <pre> Advanced Visual Systems, Inc. </pre> </p> <h3> Modifications</h3> <p> <pre> Ma YingLiang, Manchester Visualization Centre Andrew Dodd, International AVS Centre </pre> </p> <h3> Contact</h3> <p> <pre> International AVS Centre Manchester Visualization Centre Manchester Computing University of Manchester Oxford Road Manchester United Kingdom M13 9PL </pre> </p>  </td> </tr> </table> </td> </tr> <tr height="100%"> <td class="sideLink" width="25%" align="left" valign="top" nowrap="nowrap"> <p><a href="../../../../general/index.shtml" target="_top">General Information</a></p> <p><a href="../../../../repository/index.shtml" target="_top">Repositories</a></p> <p class="sideLinkLevel2"><a href="../../../new/index.shtml" target="_top">  New Releases</a></p> <p class="sideLinkLevel2"><a href="../../../download/index.shtml" target="_top">  Download</a></p> <p class="sideLinkLevel2"><a href="../../../submit/index.shtml" target="_top">  Submit</a></p> <p class="sideLinkLevel2"><a href="../../../pfiles/index.shtml" target="_top">  Project Files</a></p> <p class="sideLinkLevel2"><a href="../../../avs5/index.shtml" target="_top">  AVS5</a></p> <p class="sideLinkLevel2"><a href="../../../express/index.shtml" target="_top">  AVS/Express</a></p> <p class="sideLinkLevel3"><a href="../../atoz.shtml" target="_top">    A to Z</a></p> <p class="sideLinkLevel3"><a href="../../number.shtml" target="_top">    Project #</a></p> <p></p> <p class="sideLinkLevel3"><a href="../../data_io.shtml" target="_top">    Data IO</a></p> <p class="sideLinkLevel3"><a href="../../filters.shtml" target="_top">    Filters</a></p> <p class="sideLinkLevel3"><a href="../../mappers.shtml" target="_top">    Mappers</a></p> <p class="sideLinkLevel3"><a href="../../misc.shtml" target="_top">    Miscellaneous</a></p> <p class="sideLinkLevel3"><a href="../../special.shtml" target="_top">    Special Projects</a></p> <p class="sideLinkLevel2"><a href="../../../pog/index.shtml" target="_top">  Project Guidelines</a></p> <p><a href="../../../../usergroup/index.shtml" target="_top">User Group</a></p> <p><a href="../../../../training/index.shtml" target="_top">Training Materials</a></p> </td> </tr> </table> <table width="100%" border="0" cellspacing="0" cellpadding="0" bgcolor="c6c6e0"> <tr> <td><img src="../../../../img/foot1.gif" alt="IAC" width="155" height="25"></td> <td width="100%"> Last Updated:  26th November 2002 </td> </tr> </table>