Module Document - READ_TIN

<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> <a name="READ_TIN"> <table width="84%" border="0" align="center"> <tr bgcolor="FFFFAA" align="center"> <td nowrap width="15%" height="32"> <tt class="label">1845</tt></td> <td nowrap width="100%"> <tt class="label">READ_TIN</tt></td> <td nowrap width="150"><tt class="label">07/16/94</tt></td> </tr> <tr><td align="left" colspan="3"><p>NAME READ_TIN - Reader for Arc/Info Triangulated Region Mesh The READ_TIN module accesses external ASCII files defining a triangulated irregular network (TIN) structure from Arc/Info. This is generally used for a surface representation derived from irregulary space sample points and breakline features. The TIN data set includes topological relationships between points and their proximal triangles. Each sample point has an x,y coordinate and a surface, or z-value. These points are connected by edges to form a set of nonoverlapping triangles userd to represent the surface. TIN files are also called "irregular triangular mesh" or "irregular triangular surface model" in some contexts. "TIN" is the name of the ESRI Arc/Info application module that models, creates, displays, and exports TIN files. Within the TIN application the UNGENERATETIN command with the NET option should generate files compatable with this reader module. An optional image input port will apply a full colour texture map onto the TIN geometry, such that the geometry viewer can show the texture overlay on the terrain. The second file browser (WorldImageFile) allows a small coordinate range correction file to specify the mapping between the optional input raster texture image and the TIN coordinate system. This module requires AVS 5.01, with texture per object support.</p></td></tr> <tr><td align="left" colspan="3"><table class="avs5_repository"> <tr valign="top"><td><b>Author:</b></td><td>Scott Goodyear</td></tr> <tr><td><b>Version:</b></td><td>1.000</td></tr> <tr><td><b>Language:</b></td><td>C</td></tr> <tr> <td><b>Path:</b></td><td>source/data_input/READ_TIN/</td></tr> </table></td></tr> <tr><td align="left" colspan="3"><p> <a href="READ_TIN.shtml" target="_top"> <img src="../../../../../img/doc_mod.gif" border="0" width="30" height="30" alt="Module Document - READ_TIN"></a> <a href="source/data_input/READ_TIN/READ_TIN.tar.gz"> <img src="../../../../../img/targz.gif" border="0" width="52" height="30" alt="Archive - READ_TIN.tar.gz"></a> <a href="source/data_input/READ_TIN/READ_TIN.tar.Z"> <img src="../../../../../img/tarz.gif" border="0" width="52" height="30" alt="Archive - READ_TIN.tar.Z"></a> <a href="source/data_input/READ_TIN/READ_TIN.zip"> <img src="../../../../../img/zip.gif" border="0" width="52" height="30" alt="Archive - READ_TIN.zip"></a> </p></td> </tr> </table> <br> </td> </tr> <tr> <td>  <html> <head> <title> READ_TIN - Reader for Arc/Info Triangulated Region Mesh </title> </head> <body bgcolor=#FFFFCC> <h2> READ_TIN - Reader for Arc/Info Triangulated Region Mesh </h2> <h3>Name </h3> <blockquote> <pre> READ_TIN - Reader for Arc/Info Triangulated Region Mesh </pre> </blockquote> <h3>Author </h3> <blockquote> <pre> Scott Goodyear </pre> </blockquote> <h3>Type </h3> <blockquote> <pre> Input </pre> </blockquote> <h3>Inputs</h3> <blockquote> <pre> TIN (Arc/Info) file "Texture" field 2D 2-space 4-vector uniform byte OPTIONAL </pre> </blockquote> <h3>Outputs</h3> <blockquote> <pre> "Geometry" geom Polyhedron, with imbedded texture field </pre> </blockquote> <h3>Parameters</h3> <blockquote> <pre> "TinFile" TIN file name browser "ZScale" dial 1.00000 0.00000 100.000 (Z Exaggeration on mesh) "WorldImageFile" file name browser for World Mapping File "AutoTransform" boolean - controls coordinate representation "ZeroElevations" boolean - creates flat version of TIN </pre> </blockquote> <h3>Description</h3> <blockquote> <pre> The READ_TIN module accesses external ASCII files defining a triangulated irregular network (TIN) structure from Arc/Info. This is generally used for a surface representation derived from irregulary space sample points and breakline features. The TIN data set includes topological relationships between points and their proximal triangles. Each sample point has an x,y coordinate and a surface, or z-value. These points are connected by edges to form a set of nonoverlapping triangles userd to represent the surface. TIN files are also called "irregular triangular mesh" or "irregular triangular surface model" in some contexts. "TIN" is the name of the ESRI Arc/Info application module that models, creates, displays, and exports TIN files. Within the TIN application the UNGENERATETIN command with the NET option should generate files compatable with this reader module. An optional image input port will apply a full colour texture map onto the TIN geometry, such that the geometry viewer can show the texture overlay on the terrain. The second file browser (WorldImageFile) allows a small coordinate range correction file to specify the mapping between the optional input raster texture image and the TIN coordinate system. This module requires AVS 5.01, with texture per object support. </pre> </blockquote> </body> </html>  </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="sideLinkLevel3"><a href="../../../input.shtml" target="_top">    Data Input</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="../../../output.shtml" target="_top">    Data Output</a></p> <p class="sideLinkLevel3"><a href="../../../misc.shtml" target="_top">    Miscellaneous</a></p> <p class="sideLinkLevel2"><a href="../../../../express/index.shtml" target="_top">  AVS/Express</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>