Sophie

Sophie

distrib > Fedora > 15 > i386 > by-pkgid > 78653db2e4148c15abb94d33af2851c6 > files > 31

gts-devel-0.7.6-15.fc15.i686.rpm

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>Isosurfaces from 3D functions</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REL="HOME"
TITLE="GTS Library Reference Manual"
HREF="book1.html"><LINK
REL="UP"
TITLE="Surface operations"
HREF="c12206.html"><LINK
REL="PREVIOUS"
TITLE="Out-of-core simplification"
HREF="gts-out-of-core-simplification.html"><LINK
REL="NEXT"
TITLE="Delaunay and constrained Delaunay triangulations"
HREF="gts-delaunay-and-constrained-delaunay-triangulations.html"><STYLE
TYPE="text/css"
>.synopsis, .classsynopsis {
    background: #eeeeee;
    border: solid 1px #aaaaaa;
    padding: 0.5em;
}
.programlisting {
    background: #eeeeff;
    border: solid 1px #aaaaff;
    padding: 0.5em;
}
.variablelist {
    padding: 4px;
    margin-left: 3em;
}
.navigation {
    background: #ffeeee;
    border: solid 1px #ffaaaa;
    margin-top: 0.5em;
    margin-bottom: 0.5em;
}
.navigation a {
    color: #770000;
}
.navigation a:visited {
    color: #550000;
}
.navigation .title {
    font-size: 200%;
}</STYLE
></HEAD
><BODY
CLASS="REFENTRY"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><TABLE
WIDTH="100%"
CLASS="navigation"
SUMMARY="Navigation header"
CELLPADDING="2"
CELLSPACING="2"
><TR
VALIGN="middle"
><TD
><A
ACCESSKEY="p"
HREF="gts-out-of-core-simplification.html"
><IMG
SRC="left.png"
WIDTH="24"
HEIGHT="24"
BORDER="0"
ALT="Prev"></A
></TD
><TD
><A
ACCESSKEY="u"
HREF="c12206.html"
><IMG
SRC="up.png"
WIDTH="24"
HEIGHT="24"
BORDER="0"
ALT="Up"></A
></TD
><TD
><A
ACCESSKEY="h"
HREF="book1.html"
><IMG
SRC="home.png"
WIDTH="24"
HEIGHT="24"
BORDER="0"
ALT="Home"></A
></TD
><TH
WIDTH="100%"
align="center"
>GTS Library Reference Manual</TH
><TD
><A
ACCESSKEY="n"
HREF="gts-delaunay-and-constrained-delaunay-triangulations.html"
><IMG
SRC="right.png"
WIDTH="24"
HEIGHT="24"
BORDER="0"
ALT="Next"></A
></TD
></TR
></TABLE
><H1
><A
NAME="GTS-ISOSURFACES-FROM-3D-FUNCTIONS"
></A
>Isosurfaces from 3D functions</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN13804"
></A
><H2
>Name</H2
>Isosurfaces from 3D functions&nbsp;--&nbsp;computing triangulated isosurfaces of a given function f(x,y,z).</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN13807"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>&#13;#include &lt;gts.h&gt;


            <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
>;
            <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSGRIDPLANE"
>GtsGridPlane</A
>;

<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSGRIDPLANE"
>GtsGridPlane</A
>* <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-GRID-PLANE-NEW"
>gts_grid_plane_new</A
>            (<GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
> nx,
                                             <GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
> ny);
<GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-GRID-PLANE-DESTROY"
>gts_grid_plane_destroy</A
>          (<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSGRIDPLANE"
>GtsGridPlane</A
> *g);

            <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
>;

<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
>* <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISO-SLICE-NEW"
>gts_iso_slice_new</A
>              (<GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
> nx,
                                             <GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
> ny);
<GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISO-SLICE-FILL"
>gts_iso_slice_fill</A
>              (<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
> *slice,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSGRIDPLANE"
>GtsGridPlane</A
> *plane1,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSGRIDPLANE"
>GtsGridPlane</A
> *plane2,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> **f1,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> **f2,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso,
                                             <A
HREF="gts-vertices.html#GTSVERTEXCLASS"
>GtsVertexClass</A
> *klass);
<GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISO-SLICE-FILL-CARTESIAN"
>gts_iso_slice_fill_cartesian</A
>    (<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
> *slice,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> **f1,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> **f2,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso,
                                             <A
HREF="gts-vertices.html#GTSVERTEXCLASS"
>GtsVertexClass</A
> *klass);
<GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISO-SLICE-DESTROY"
>gts_iso_slice_destroy</A
>           (<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
> *slice);
<GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISOSURFACE-SLICE"
>gts_isosurface_slice</A
>            (<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
> *slice1,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
> *slice2,
                                             <A
HREF="gts-surfaces.html#GTSSURFACE"
>GtsSurface</A
> *surface);
<GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        (<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
>*GtsIsoCartesianFunc</A
>)          (<GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> **a,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
> i,
                                             <GTKDOCLINK
HREF="GPOINTER"
>gpointer</GTKDOCLINK
> data);
<GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISOSURFACE-CARTESIAN"
>gts_isosurface_cartesian</A
>        (<A
HREF="gts-surfaces.html#GTSSURFACE"
>GtsSurface</A
> *surface,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
>GtsIsoCartesianFunc</A
> f,
                                             <GTKDOCLINK
HREF="GPOINTER"
>gpointer</GTKDOCLINK
> data,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso);
<GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISOSURFACE-TETRA"
>gts_isosurface_tetra</A
>            (<A
HREF="gts-surfaces.html#GTSSURFACE"
>GtsSurface</A
> *surface,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
>GtsIsoCartesianFunc</A
> f,
                                             <GTKDOCLINK
HREF="GPOINTER"
>gpointer</GTKDOCLINK
> data,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso);
<GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISOSURFACE-TETRA-BOUNDED"
>gts_isosurface_tetra_bounded</A
>    (<A
HREF="gts-surfaces.html#GTSSURFACE"
>GtsSurface</A
> *surface,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
>GtsIsoCartesianFunc</A
> f,
                                             <GTKDOCLINK
HREF="GPOINTER"
>gpointer</GTKDOCLINK
> data,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso);
<GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISOSURFACE-TETRA-BCL"
>gts_isosurface_tetra_bcl</A
>        (<A
HREF="gts-surfaces.html#GTSSURFACE"
>GtsSurface</A
> *surface,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
>GtsIsoCartesianFunc</A
> f,
                                             <GTKDOCLINK
HREF="GPOINTER"
>gpointer</GTKDOCLINK
> data,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso);</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN13883"
></A
><H2
>Description</H2
><P
>Using the <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISOSURFACE-CARTESIAN"
><CODE
CLASS="FUNCTION"
>gts_isosurface_cartesian()</CODE
></A
> function, it is possible to build a triangulated isosurface of a given user-defined function. As its name indicates this function assumes that the values of the user-defined function are defined for points located on a regular cartesian grid described by the <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
><SPAN
CLASS="TYPE"
>GtsCartesianGrid</SPAN
></A
> parameter. The triangles describing the isosurface are computed for each pair of successive planes z and z+dz in a pipelined manner. Consequently only two planes need to be stored in memory at any time. This allows to construct isosurfaces for datasets too large to fit in main memory.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN13890"
></A
><H2
>Details</H2
><DIV
CLASS="REFSECT2"
><A
NAME="AEN13892"
></A
><H3
><A
NAME="GTSCARTESIANGRID"
></A
>GtsCartesianGrid</H3
><PRE
CLASS="PROGRAMLISTING"
>typedef struct {
  guint nx, ny, nz;
  gdouble x, dx, y, dy, z, dz;
} GtsCartesianGrid;</PRE
><P
>A regular cartesian grid is defined by the number of points in each direction, the spatial increment in each direction and the coordinates of the first point.</P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13900"><SPAN
STYLE="white-space: nowrap"
><GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
>&nbsp;<CODE
CLASS="STRUCTFIELD"
>nx</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>Number of points in direction x.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13906"><SPAN
STYLE="white-space: nowrap"
><GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
>&nbsp;<CODE
CLASS="STRUCTFIELD"
>ny</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>Number of points in direction y.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13912"><SPAN
STYLE="white-space: nowrap"
><GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
>&nbsp;<CODE
CLASS="STRUCTFIELD"
>nz</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>Number of points in direction z.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13918"><SPAN
STYLE="white-space: nowrap"
><GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
>&nbsp;<CODE
CLASS="STRUCTFIELD"
>x</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>x coordinate of the first point.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13924"><SPAN
STYLE="white-space: nowrap"
><GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
>&nbsp;<CODE
CLASS="STRUCTFIELD"
>dx</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>Increment in direction x.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13930"><SPAN
STYLE="white-space: nowrap"
><GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
>&nbsp;<CODE
CLASS="STRUCTFIELD"
>y</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>y coordinate of the first point.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13936"><SPAN
STYLE="white-space: nowrap"
><GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
>&nbsp;<CODE
CLASS="STRUCTFIELD"
>dy</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>Increment in direction y.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13942"><SPAN
STYLE="white-space: nowrap"
><GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
>&nbsp;<CODE
CLASS="STRUCTFIELD"
>z</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>z coordinate of the first point.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13948"><SPAN
STYLE="white-space: nowrap"
><GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
>&nbsp;<CODE
CLASS="STRUCTFIELD"
>dz</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>Increment in direction z.&#13;</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN13954"
></A
><H3
><A
NAME="GTSGRIDPLANE"
></A
>GtsGridPlane</H3
><PRE
CLASS="PROGRAMLISTING"
>typedef struct {
  GtsPoint ** p;
  guint nx, ny;
} GtsGridPlane;</PRE
><P
></P
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN13961"
></A
><H3
><A
NAME="GTS-GRID-PLANE-NEW"
></A
>gts_grid_plane_new ()</H3
><PRE
CLASS="PROGRAMLISTING"
><A
HREF="gts-isosurfaces-from-3d-functions.html#GTSGRIDPLANE"
>GtsGridPlane</A
>* gts_grid_plane_new            (<GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
> nx,
                                             <GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
> ny);</PRE
><P
></P
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13973"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>nx</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
></P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13978"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>ny</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
></P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13983"><SPAN
STYLE="white-space: nowrap"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Returns</I
></SPAN
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
></P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN13988"
></A
><H3
><A
NAME="GTS-GRID-PLANE-DESTROY"
></A
>gts_grid_plane_destroy ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        gts_grid_plane_destroy          (<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSGRIDPLANE"
>GtsGridPlane</A
> *g);</PRE
><P
></P
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN13999"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>g</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
></P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN14004"
></A
><H3
><A
NAME="GTSISOSLICE"
></A
>GtsIsoSlice</H3
><PRE
CLASS="PROGRAMLISTING"
>typedef struct _GtsIsoSlice GtsIsoSlice;</PRE
><P
>A GtsIsoSlice is an opaque data structure containing the coordinates of the points located on the isosurface for a given slice of the user-defined function.</P
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN14011"
></A
><H3
><A
NAME="GTS-ISO-SLICE-NEW"
></A
>gts_iso_slice_new ()</H3
><PRE
CLASS="PROGRAMLISTING"
><A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
>* gts_iso_slice_new              (<GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
> nx,
                                             <GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
> ny);</PRE
><P
></P
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14023"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>nx</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> number of vertices in the x direction.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14028"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>ny</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> number of vertices in the y direction.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14033"><SPAN
STYLE="white-space: nowrap"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Returns</I
></SPAN
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a new <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
><SPAN
CLASS="TYPE"
>GtsIsoSlice</SPAN
></A
>.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN14040"
></A
><H3
><A
NAME="GTS-ISO-SLICE-FILL"
></A
>gts_iso_slice_fill ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        gts_iso_slice_fill              (<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
> *slice,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSGRIDPLANE"
>GtsGridPlane</A
> *plane1,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSGRIDPLANE"
>GtsGridPlane</A
> *plane2,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> **f1,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> **f2,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso,
                                             <A
HREF="gts-vertices.html#GTSVERTEXCLASS"
>GtsVertexClass</A
> *klass);</PRE
><P
>Fill <CODE
CLASS="PARAMETER"
>slice</CODE
> with the coordinates of the vertices defined by 
f1 (x,y,z) = <CODE
CLASS="PARAMETER"
>iso</CODE
> and f2 (x, y, z) = <CODE
CLASS="PARAMETER"
>iso</CODE
>.</P
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14060"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>slice</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
><SPAN
CLASS="TYPE"
>GtsIsoSlice</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14067"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>plane1</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSGRIDPLANE"
><SPAN
CLASS="TYPE"
>GtsGridPlane</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14074"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>plane2</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> another <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSGRIDPLANE"
><SPAN
CLASS="TYPE"
>GtsGridPlane</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14081"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>f1</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> values of the function corresponding to <CODE
CLASS="PARAMETER"
>plane1</CODE
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14087"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>f2</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> values of the function corresponding to <CODE
CLASS="PARAMETER"
>plane2</CODE
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14093"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>iso</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> isosurface value.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14098"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>klass</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-vertices.html#GTSVERTEXCLASS"
><SPAN
CLASS="TYPE"
>GtsVertexClass</SPAN
></A
> or one of its descendant to be used for the 
new vertices.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN14105"
></A
><H3
><A
NAME="GTS-ISO-SLICE-FILL-CARTESIAN"
></A
>gts_iso_slice_fill_cartesian ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        gts_iso_slice_fill_cartesian    (<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
> *slice,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> **f1,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> **f2,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso,
                                             <A
HREF="gts-vertices.html#GTSVERTEXCLASS"
>GtsVertexClass</A
> *klass);</PRE
><P
>Fill <CODE
CLASS="PARAMETER"
>slice</CODE
> with the coordinates of the vertices defined by 
f1 (x,y,z) = <CODE
CLASS="PARAMETER"
>iso</CODE
> and f2 (x, y, z) = <CODE
CLASS="PARAMETER"
>iso</CODE
>.</P
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14124"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>slice</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
><SPAN
CLASS="TYPE"
>GtsIsoSlice</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14131"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>g</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
><SPAN
CLASS="TYPE"
>GtsCartesianGrid</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14138"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>f1</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> values of the function for plane z = <CODE
CLASS="PARAMETER"
>g.z</CODE
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14144"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>f2</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> values of the function for plane z = <CODE
CLASS="PARAMETER"
>g.z</CODE
> + <CODE
CLASS="PARAMETER"
>g.dz</CODE
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14151"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>iso</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> isosurface value.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14156"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>klass</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-vertices.html#GTSVERTEXCLASS"
><SPAN
CLASS="TYPE"
>GtsVertexClass</SPAN
></A
>.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN14163"
></A
><H3
><A
NAME="GTS-ISO-SLICE-DESTROY"
></A
>gts_iso_slice_destroy ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        gts_iso_slice_destroy           (<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
> *slice);</PRE
><P
>Free all memory allocated for <CODE
CLASS="PARAMETER"
>slice</CODE
>.</P
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14175"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>slice</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
><SPAN
CLASS="TYPE"
>GtsIsoSlice</SPAN
></A
>.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN14182"
></A
><H3
><A
NAME="GTS-ISOSURFACE-SLICE"
></A
>gts_isosurface_slice ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        gts_isosurface_slice            (<A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
> *slice1,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
>GtsIsoSlice</A
> *slice2,
                                             <A
HREF="gts-surfaces.html#GTSSURFACE"
>GtsSurface</A
> *surface);</PRE
><P
>Given two successive slices <CODE
CLASS="PARAMETER"
>slice1</CODE
> and <CODE
CLASS="PARAMETER"
>slice2</CODE
> link their vertices with
segments and triangles which are added to <CODE
CLASS="PARAMETER"
>surface</CODE
>.</P
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14198"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>slice1</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
><SPAN
CLASS="TYPE"
>GtsIsoSlice</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14205"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>slice2</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> another <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOSLICE"
><SPAN
CLASS="TYPE"
>GtsIsoSlice</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14212"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>surface</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-surfaces.html#GTSSURFACE"
><SPAN
CLASS="TYPE"
>GtsSurface</SPAN
></A
>.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN14219"
></A
><H3
><A
NAME="GTSISOCARTESIANFUNC"
></A
>GtsIsoCartesianFunc ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        (*GtsIsoCartesianFunc)          (<GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> **a,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <GTKDOCLINK
HREF="GUINT"
>guint</GTKDOCLINK
> i,
                                             <GTKDOCLINK
HREF="GPOINTER"
>gpointer</GTKDOCLINK
> data);</PRE
><P
>This user-defined function is passed to the <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISOSURFACE-CARTESIAN"
><CODE
CLASS="FUNCTION"
>gts_isosurface_cartesian()</CODE
></A
> 
function. Given a particular <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
><SPAN
CLASS="TYPE"
>GtsCartesianGrid</SPAN
></A
> <CODE
CLASS="PARAMETER"
>g</CODE
> it must fill the array <CODE
CLASS="PARAMETER"
>a</CODE
>
with the values of the function for the plane z=<CODE
CLASS="PARAMETER"
>g.z</CODE
> (or for the corresponding 
index <CODE
CLASS="PARAMETER"
>i</CODE
>). This function is always called in order by <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISOSURFACE-CARTESIAN"
><CODE
CLASS="FUNCTION"
>gts_isosurface_cartesian()</CODE
></A
>, i.e. <CODE
CLASS="PARAMETER"
>i</CODE
> varies from 0 to <CODE
CLASS="PARAMETER"
>g.nz</CODE
> - 1 with an increment of one (and similarly <CODE
CLASS="PARAMETER"
>g.z</CODE
> is incremented every time by <CODE
CLASS="PARAMETER"
>g.dz</CODE
>).</P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14246"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>a</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>the 2D array to be filled.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14251"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>g</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
><SPAN
CLASS="TYPE"
>GtsCartesianGrid</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14258"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>i</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>the z direction index of the plane to be filled.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14263"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>data</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>user data.
&#13;</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN14268"
></A
><H3
><A
NAME="GTS-ISOSURFACE-CARTESIAN"
></A
>gts_isosurface_cartesian ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        gts_isosurface_cartesian        (<A
HREF="gts-surfaces.html#GTSSURFACE"
>GtsSurface</A
> *surface,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
>GtsIsoCartesianFunc</A
> f,
                                             <GTKDOCLINK
HREF="GPOINTER"
>gpointer</GTKDOCLINK
> data,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso);</PRE
><P
>Adds to <CODE
CLASS="PARAMETER"
>surface</CODE
> new faces defining the isosurface f(x,y,z) = <CODE
CLASS="PARAMETER"
>iso</CODE
>. By
convention, the normals to the surface are pointing toward the positive
values of f(x,y,z) - <CODE
CLASS="PARAMETER"
>iso</CODE
>.</P
><P
>The user function <CODE
CLASS="PARAMETER"
>f</CODE
> is called successively for each value of the z 
coordinate defined by <CODE
CLASS="PARAMETER"
>g</CODE
>. It must fill the corresponding (x,y) plane with
the values of the function for which the isosurface is to be computed.</P
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14289"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>surface</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-surfaces.html#GTSSURFACE"
><SPAN
CLASS="TYPE"
>GtsSurface</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14296"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>g</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
><SPAN
CLASS="TYPE"
>GtsCartesianGrid</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14303"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>f</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
><SPAN
CLASS="TYPE"
>GtsIsoCartesianFunc</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14310"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>data</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> user data to be passed to <CODE
CLASS="PARAMETER"
>f</CODE
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14316"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>iso</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> isosurface value.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN14321"
></A
><H3
><A
NAME="GTS-ISOSURFACE-TETRA"
></A
>gts_isosurface_tetra ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        gts_isosurface_tetra            (<A
HREF="gts-surfaces.html#GTSSURFACE"
>GtsSurface</A
> *surface,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
>GtsIsoCartesianFunc</A
> f,
                                             <GTKDOCLINK
HREF="GPOINTER"
>gpointer</GTKDOCLINK
> data,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso);</PRE
><P
>Adds to <CODE
CLASS="PARAMETER"
>surface</CODE
> new faces defining the isosurface f(x,y,z) =
<CODE
CLASS="PARAMETER"
>iso</CODE
>. By convention, the normals to the surface are pointing toward
the positive values of f(x,y,z) - <CODE
CLASS="PARAMETER"
>iso</CODE
>.</P
><P
>The user function <CODE
CLASS="PARAMETER"
>f</CODE
> is called successively for each value of the z
coordinate defined by <CODE
CLASS="PARAMETER"
>g</CODE
>. It must fill the corresponding (x,y)
plane with the values of the function for which the isosurface is
to be computed.</P
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14342"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>surface</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-surfaces.html#GTSSURFACE"
><SPAN
CLASS="TYPE"
>GtsSurface</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14349"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>g</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
><SPAN
CLASS="TYPE"
>GtsCartesianGrid</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14356"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>f</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
><SPAN
CLASS="TYPE"
>GtsIsoCartesianFunc</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14363"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>data</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> user data to be passed to <CODE
CLASS="PARAMETER"
>f</CODE
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14369"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>iso</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> isosurface value.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN14374"
></A
><H3
><A
NAME="GTS-ISOSURFACE-TETRA-BOUNDED"
></A
>gts_isosurface_tetra_bounded ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        gts_isosurface_tetra_bounded    (<A
HREF="gts-surfaces.html#GTSSURFACE"
>GtsSurface</A
> *surface,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
>GtsIsoCartesianFunc</A
> f,
                                             <GTKDOCLINK
HREF="GPOINTER"
>gpointer</GTKDOCLINK
> data,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso);</PRE
><P
>Adds to <CODE
CLASS="PARAMETER"
>surface</CODE
> new faces defining the isosurface f(x,y,z) =
<CODE
CLASS="PARAMETER"
>iso</CODE
>. By convention, the normals to the surface are pointing toward
the positive values of f(x,y,z) - <CODE
CLASS="PARAMETER"
>iso</CODE
>. To ensure a closed object,
a boundary of G_MINDOUBLE is added around the domain</P
><P
>The user function <CODE
CLASS="PARAMETER"
>f</CODE
> is called successively for each value of the z
coordinate defined by <CODE
CLASS="PARAMETER"
>g</CODE
>. It must fill the corresponding (x,y)
plane with the values of the function for which the isosurface is
to be computed.</P
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14395"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>surface</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-surfaces.html#GTSSURFACE"
><SPAN
CLASS="TYPE"
>GtsSurface</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14402"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>g</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
><SPAN
CLASS="TYPE"
>GtsCartesianGrid</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14409"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>f</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
><SPAN
CLASS="TYPE"
>GtsIsoCartesianFunc</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14416"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>data</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> user data to be passed to <CODE
CLASS="PARAMETER"
>f</CODE
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14422"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>iso</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> isosurface value.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN14427"
></A
><H3
><A
NAME="GTS-ISOSURFACE-TETRA-BCL"
></A
>gts_isosurface_tetra_bcl ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="VOID"
>void</GTKDOCLINK
>        gts_isosurface_tetra_bcl        (<A
HREF="gts-surfaces.html#GTSSURFACE"
>GtsSurface</A
> *surface,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
>GtsCartesianGrid</A
> g,
                                             <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
>GtsIsoCartesianFunc</A
> f,
                                             <GTKDOCLINK
HREF="GPOINTER"
>gpointer</GTKDOCLINK
> data,
                                             <GTKDOCLINK
HREF="GDOUBLE"
>gdouble</GTKDOCLINK
> iso);</PRE
><P
>Adds to <CODE
CLASS="PARAMETER"
>surface</CODE
> new faces defining the isosurface f(x,y,z) =
<CODE
CLASS="PARAMETER"
>iso</CODE
>. By convention, the normals to the surface are pointing toward
the positive values of f(x,y,z) - <CODE
CLASS="PARAMETER"
>iso</CODE
>.</P
><P
>The user function <CODE
CLASS="PARAMETER"
>f</CODE
> is called successively for each value of the z
coordinate defined by <CODE
CLASS="PARAMETER"
>g</CODE
>. It must fill the corresponding (x,y)
plane with the values of the function for which the isosurface is
to be computed.  </P
><P
>This version produces the dual "body-centered" faces relative to
the faces produced by <A
HREF="gts-isosurfaces-from-3d-functions.html#GTS-ISOSURFACE-TETRA"
><CODE
CLASS="FUNCTION"
>gts_isosurface_tetra()</CODE
></A
>.</P
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14451"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>surface</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-surfaces.html#GTSSURFACE"
><SPAN
CLASS="TYPE"
>GtsSurface</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14458"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>g</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSCARTESIANGRID"
><SPAN
CLASS="TYPE"
>GtsCartesianGrid</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14465"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>f</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-isosurfaces-from-3d-functions.html#GTSISOCARTESIANFUNC"
><SPAN
CLASS="TYPE"
>GtsIsoCartesianFunc</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14472"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>data</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> user data to be passed to <CODE
CLASS="PARAMETER"
>f</CODE
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN14478"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>iso</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> isosurface value.</P
></TD
></TR
></TBODY
></TABLE
></DIV
></DIV
><TABLE
CLASS="navigation"
WIDTH="100%"
SUMMARY="Navigation footer"
CELLPADDING="2"
CELLSPACING="2"
><TR
VALIGN="middle"
><TD
ALIGN="left"
><A
ACCESSKEY="p"
HREF="gts-out-of-core-simplification.html"
><B
>&lt;&lt;&lt;&nbsp;Out-of-core simplification</B
></A
></TD
><TD
ALIGN="right"
><A
ACCESSKEY="n"
HREF="gts-delaunay-and-constrained-delaunay-triangulations.html"
><B
>Delaunay and constrained Delaunay triangulations&nbsp;&gt;&gt;&gt;</B
></A
></TD
></TR
></TABLE
></BODY
></HTML
>

Perl :: Catalyst :: PostgreSQL :: RPM Valid HTML 4.01 Transitional