<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 2002-2-1 (1.71) original version by: Nikos Drakos, CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>A.10 sph: spherical triangulation and gridding</TITLE> <META NAME="description" CONTENT="A.10 sph: spherical triangulation and gridding"> <META NAME="keywords" CONTENT="GMT_Docs"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META NAME="Generator" CONTENT="LaTeX2HTML v2002-2-1"> <META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> <LINK REL="STYLESHEET" HREF="GMT_Docs.css"> <LINK REL="next" HREF="node169.html"> <LINK REL="previous" HREF="node167.html"> <LINK REL="up" HREF="node158.html"> <LINK REL="next" HREF="node169.html"> </HEAD> <BODY bgcolor="#ffffff"> <!--Navigation Panel--> <A NAME="tex2html5022" HREF="node169.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html5016" HREF="node158.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html5010" HREF="node167.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html5018" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <A NAME="tex2html5020" HREF="node256.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A> <BR> <B> Next:</B> <A NAME="tex2html5023" HREF="node169.html">A.11 spotter: backtracking and</A> <B> Up:</B> <A NAME="tex2html5017" HREF="node158.html">A. GMT supplemental packages</A> <B> Previous:</B> <A NAME="tex2html5011" HREF="node167.html">A.9 segyprogs: plotting SEGY</A> <B> <A NAME="tex2html5019" HREF="node1.html">Contents</A></B> <B> <A NAME="tex2html5021" HREF="node256.html">Index</A></B> <BR> <BR> <!--End of Navigation Panel--> <H1><A NAME="SECTION0018100000000000000000"> A.10 sph: spherical triangulation and gridding</A> </H1> <P> This package contains the main programs <A NAME="tex2html1608" HREF="../man/sphtriangulate.html"><I><B>sphtriangulate</B></I></A><A NAME="28375"></A>, which you can use to generate data for Delaunay or Voronoi diagrams, <A NAME="tex2html1609" HREF="../man/sphdistance.html"><I><B>sphdistance</B></I></A><A NAME="28380"></A> which calculates distances from lines to grid nodes using Voronoi decomposition of the data, and <A NAME="tex2html1610" HREF="../man/sphinterpolate.html"><I><B>sphinterpolate</B></I></A><A NAME="28385"></A> which performs gridding under tension on a sphere. These programs passes the heavy work onto the two Fortran-77 packages SSRFPACK and STRIPACK by Robert Renka; here they have been translated to C with assistance from <I>f2c</I><A NAME="28389"></A>. The package is maintained by Paul Wessel. <P> <HR> <!--Navigation Panel--> <A NAME="tex2html5022" HREF="node169.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html5016" HREF="node158.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html5010" HREF="node167.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html5018" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <A NAME="tex2html5020" HREF="node256.html"> <IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A> <BR> <B> Next:</B> <A NAME="tex2html5023" HREF="node169.html">A.11 spotter: backtracking and</A> <B> Up:</B> <A NAME="tex2html5017" HREF="node158.html">A. GMT supplemental packages</A> <B> Previous:</B> <A NAME="tex2html5011" HREF="node167.html">A.9 segyprogs: plotting SEGY</A> <B> <A NAME="tex2html5019" HREF="node1.html">Contents</A></B> <B> <A NAME="tex2html5021" HREF="node256.html">Index</A></B> <!--End of Navigation Panel--> <ADDRESS> Paul Wessel 2010-07-14 </ADDRESS> </BODY> </HTML>