Sophie

Sophie

distrib > Fedora > 15 > i386 > by-pkgid > 78653db2e4148c15abb94d33af2851c6 > files > 39

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
>Segments</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="Geometrical Object Hierarchy"
HREF="c2915.html"><LINK
REL="PREVIOUS"
TITLE="Vertices"
HREF="gts-vertices.html"><LINK
REL="NEXT"
TITLE="Edges"
HREF="gts-edges.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-vertices.html"
><IMG
SRC="left.png"
WIDTH="24"
HEIGHT="24"
BORDER="0"
ALT="Prev"></A
></TD
><TD
><A
ACCESSKEY="u"
HREF="c2915.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-edges.html"
><IMG
SRC="right.png"
WIDTH="24"
HEIGHT="24"
BORDER="0"
ALT="Next"></A
></TD
></TR
></TABLE
><H1
><A
NAME="GTS-SEGMENTS"
></A
>Segments</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN6136"
></A
><H2
>Name</H2
>Segments&nbsp;--&nbsp;segment object and related functions.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN6139"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>&#13;#include &lt;gts.h&gt;


#define     <A
HREF="gts-segments.html#GTS-SEGMENT-CLASS:CAPS"
>GTS_SEGMENT_CLASS</A
>               (klass)
#define     <A
HREF="gts-segments.html#GTS-SEGMENT:CAPS"
>GTS_SEGMENT</A
>                     (obj)
#define     <A
HREF="gts-segments.html#GTS-IS-SEGMENT:CAPS"
>GTS_IS_SEGMENT</A
>                  (obj)
            <A
HREF="gts-segments.html#GTSSEGMENTCLASS"
>GtsSegmentClass</A
>;
            <A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
>;

<A
HREF="gts-segments.html#GTSSEGMENTCLASS"
>GtsSegmentClass</A
>* <A
HREF="gts-segments.html#GTS-SEGMENT-CLASS"
>gts_segment_class</A
>          (void);
<A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
>* <A
HREF="gts-segments.html#GTS-SEGMENT-NEW"
>gts_segment_new</A
>                 (<A
HREF="gts-segments.html#GTSSEGMENTCLASS"
>GtsSegmentClass</A
> *klass,
                                             <A
HREF="gts-vertices.html#GTSVERTEX"
>GtsVertex</A
> *v1,
                                             <A
HREF="gts-vertices.html#GTSVERTEX"
>GtsVertex</A
> *v2);
#define     <A
HREF="gts-segments.html#GTS-SEGMENTS-ARE-IDENTICAL"
>gts_segments_are_identical</A
>      (s1, s2)
<A
HREF="gts-points.html#GTSINTERSECT"
>GtsIntersect</A
> <A
HREF="gts-segments.html#GTS-SEGMENTS-ARE-INTERSECTING"
>gts_segments_are_intersecting</A
>  (<A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
> *s1,
                                             <A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
> *s2);
<A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
>* <A
HREF="gts-segments.html#GTS-SEGMENT-IS-DUPLICATE"
>gts_segment_is_duplicate</A
>        (<A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
> *s);
<GTKDOCLINK
HREF="GBOOLEAN"
>gboolean</GTKDOCLINK
>    <A
HREF="gts-segments.html#GTS-SEGMENT-IS-OK"
>gts_segment_is_ok</A
>               (<A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
> *s);
#define     <A
HREF="gts-segments.html#GTS-SEGMENT-CONNECT"
>gts_segment_connect</A
>             (s, e1, e2)
#define     <A
HREF="gts-segments.html#GTS-SEGMENTS-TOUCH"
>gts_segments_touch</A
>              (s1, s2)
<GTKDOCLINK
HREF="GSLIST"
>GSList</GTKDOCLINK
>*     <A
HREF="gts-segments.html#GTS-SEGMENTS-FROM-VERTICES"
>gts_segments_from_vertices</A
>      (<GTKDOCLINK
HREF="GSLIST"
>GSList</GTKDOCLINK
> *vertices);
<A
HREF="gts-vertices.html#GTSVERTEX"
>GtsVertex</A
>*  <A
HREF="gts-segments.html#GTS-SEGMENT-MIDVERTEX"
>gts_segment_midvertex</A
>           (<A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
> *s,
                                             <A
HREF="gts-vertices.html#GTSVERTEXCLASS"
>GtsVertexClass</A
> *klass);</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN6174"
></A
><H2
>Description</H2
><P
>Segments are defined by their two <A
HREF="gts-vertices.html#GTSVERTEX"
><SPAN
CLASS="TYPE"
>GtsVertex</SPAN
></A
>. They are not oriented.</P
><P
>When destroying a <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>, all the vertices not used by another edge are also destroyed. This default behaviour can be changed punctually by setting the global variable gts_allow_floating_vertices to <TT
CLASS="LITERAL"
>TRUE</TT
>. You must not forget to set this variable back to <TT
CLASS="LITERAL"
>FALSE</TT
> as all the algorithms of GTS assume the default behaviour.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN6184"
></A
><H2
>Details</H2
><DIV
CLASS="REFSECT2"
><A
NAME="AEN6186"
></A
><H3
><A
NAME="GTS-SEGMENT-CLASS:CAPS"
></A
>GTS_SEGMENT_CLASS()</H3
><PRE
CLASS="PROGRAMLISTING"
>#define     GTS_SEGMENT_CLASS(klass)</PRE
><P
>Casts <CODE
CLASS="PARAMETER"
>klass</CODE
> to <A
HREF="gts-segments.html#GTSSEGMENTCLASS"
><SPAN
CLASS="TYPE"
>GtsSegmentClass</SPAN
></A
>.</P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6197"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>klass</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>a descendant of <A
HREF="gts-segments.html#GTSSEGMENTCLASS"
><SPAN
CLASS="TYPE"
>GtsSegmentClass</SPAN
></A
>.
&#13;</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6204"
></A
><H3
><A
NAME="GTS-SEGMENT:CAPS"
></A
>GTS_SEGMENT()</H3
><PRE
CLASS="PROGRAMLISTING"
>#define     GTS_SEGMENT(obj)</PRE
><P
>Casts <CODE
CLASS="PARAMETER"
>obj</CODE
> to <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>.</P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6215"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>obj</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>a descendant of <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>.
&#13;</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6222"
></A
><H3
><A
NAME="GTS-IS-SEGMENT:CAPS"
></A
>GTS_IS_SEGMENT()</H3
><PRE
CLASS="PROGRAMLISTING"
>#define     GTS_IS_SEGMENT(obj)</PRE
><P
>Evaluates to <TT
CLASS="LITERAL"
>TRUE</TT
> if <CODE
CLASS="PARAMETER"
>obj</CODE
> is a descendant of <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>, <TT
CLASS="LITERAL"
>FALSE</TT
> otherwise.</P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6235"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>obj</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>a pointer to test.
&#13;</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6240"
></A
><H3
><A
NAME="GTSSEGMENTCLASS"
></A
>GtsSegmentClass</H3
><PRE
CLASS="PROGRAMLISTING"
>typedef struct {
  GtsObjectClass parent_class;
} GtsSegmentClass;</PRE
><P
>The segment class. No virtual functions are assiocated.</P
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6247"
></A
><H3
><A
NAME="GTSSEGMENT"
></A
>GtsSegment</H3
><PRE
CLASS="PROGRAMLISTING"
>typedef struct {
  GtsObject object;

  GtsVertex * v1;
  GtsVertex * v2;
} GtsSegment;</PRE
><P
>The segment object.</P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6255"><SPAN
STYLE="white-space: nowrap"
><A
HREF="gts-object-class.html#GTSOBJECT"
>GtsObject</A
>&nbsp;<CODE
CLASS="STRUCTFIELD"
>object</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>The parent object.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6261"><SPAN
STYLE="white-space: nowrap"
><A
HREF="gts-vertices.html#GTSVERTEX"
>GtsVertex</A
>&nbsp;*<CODE
CLASS="STRUCTFIELD"
>v1</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>First endpoint of the segment.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6267"><SPAN
STYLE="white-space: nowrap"
><A
HREF="gts-vertices.html#GTSVERTEX"
>GtsVertex</A
>&nbsp;*<CODE
CLASS="STRUCTFIELD"
>v2</CODE
>;</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>Second endpoint of the segment.&#13;</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6273"
></A
><H3
><A
NAME="GTS-SEGMENT-CLASS"
></A
>gts_segment_class ()</H3
><PRE
CLASS="PROGRAMLISTING"
><A
HREF="gts-segments.html#GTSSEGMENTCLASS"
>GtsSegmentClass</A
>* gts_segment_class          (void);</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="AEN6283"><SPAN
STYLE="white-space: nowrap"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Returns</I
></SPAN
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> the <A
HREF="gts-segments.html#GTSSEGMENTCLASS"
><SPAN
CLASS="TYPE"
>GtsSegmentClass</SPAN
></A
>.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6290"
></A
><H3
><A
NAME="GTS-SEGMENT-NEW"
></A
>gts_segment_new ()</H3
><PRE
CLASS="PROGRAMLISTING"
><A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
>* gts_segment_new                 (<A
HREF="gts-segments.html#GTSSEGMENTCLASS"
>GtsSegmentClass</A
> *klass,
                                             <A
HREF="gts-vertices.html#GTSVERTEX"
>GtsVertex</A
> *v1,
                                             <A
HREF="gts-vertices.html#GTSVERTEX"
>GtsVertex</A
> *v2);</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="AEN6303"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>klass</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-segments.html#GTSSEGMENTCLASS"
><SPAN
CLASS="TYPE"
>GtsSegmentClass</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6310"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>v1</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-vertices.html#GTSVERTEX"
><SPAN
CLASS="TYPE"
>GtsVertex</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6317"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>v2</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> another <A
HREF="gts-vertices.html#GTSVERTEX"
><SPAN
CLASS="TYPE"
>GtsVertex</SPAN
></A
> different from <CODE
CLASS="PARAMETER"
>v1</CODE
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6325"><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-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
> linking <CODE
CLASS="PARAMETER"
>v1</CODE
> and <CODE
CLASS="PARAMETER"
>v2</CODE
>.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6334"
></A
><H3
><A
NAME="GTS-SEGMENTS-ARE-IDENTICAL"
></A
>gts_segments_are_identical()</H3
><PRE
CLASS="PROGRAMLISTING"
>#define     gts_segments_are_identical(s1, s2)</PRE
><P
>Evaluates to <TT
CLASS="LITERAL"
>TRUE</TT
> if <CODE
CLASS="PARAMETER"
>s1</CODE
> and <CODE
CLASS="PARAMETER"
>s2</CODE
> link the same vertices, <TT
CLASS="LITERAL"
>FALSE</TT
> otherwise.</P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6346"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>s1</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>a <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6353"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>s2</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>another <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>.
&#13;</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6360"
></A
><H3
><A
NAME="GTS-SEGMENTS-ARE-INTERSECTING"
></A
>gts_segments_are_intersecting ()</H3
><PRE
CLASS="PROGRAMLISTING"
><A
HREF="gts-points.html#GTSINTERSECT"
>GtsIntersect</A
> gts_segments_are_intersecting  (<A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
> *s1,
                                             <A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
> *s2);</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="AEN6372"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>s1</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6379"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>s2</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6386"><SPAN
STYLE="white-space: nowrap"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Returns</I
></SPAN
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> <TT
CLASS="LITERAL"
>GTS_IN</TT
> if <CODE
CLASS="PARAMETER"
>s1</CODE
> and <CODE
CLASS="PARAMETER"
>s2</CODE
> are intersecting, <TT
CLASS="LITERAL"
>GTS_ON</TT
> if one of the
endpoints of <CODE
CLASS="PARAMETER"
>s1</CODE
> (resp. <CODE
CLASS="PARAMETER"
>s2</CODE
>) lies on <CODE
CLASS="PARAMETER"
>s2</CODE
> (resp. <CODE
CLASS="PARAMETER"
>s1</CODE
>), <TT
CLASS="LITERAL"
>GTS_OUT</TT
> otherwise.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6400"
></A
><H3
><A
NAME="GTS-SEGMENT-IS-DUPLICATE"
></A
>gts_segment_is_duplicate ()</H3
><PRE
CLASS="PROGRAMLISTING"
><A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
>* gts_segment_is_duplicate        (<A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
> *s);</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="AEN6411"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>s</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6418"><SPAN
STYLE="white-space: nowrap"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Returns</I
></SPAN
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> the first <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
> different from <CODE
CLASS="PARAMETER"
>s</CODE
> which shares the
same endpoints or <TT
CLASS="LITERAL"
>NULL</TT
> if there is none.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6427"
></A
><H3
><A
NAME="GTS-SEGMENT-IS-OK"
></A
>gts_segment_is_ok ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="GBOOLEAN"
>gboolean</GTKDOCLINK
>    gts_segment_is_ok               (<A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
> *s);</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="AEN6438"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>s</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6445"><SPAN
STYLE="white-space: nowrap"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Returns</I
></SPAN
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> <TT
CLASS="LITERAL"
>TRUE</TT
> if <CODE
CLASS="PARAMETER"
>s</CODE
> is not degenerate (i.e. <CODE
CLASS="PARAMETER"
>s</CODE
>-&gt;v1 != <CODE
CLASS="PARAMETER"
>s</CODE
>-&gt;v2) and not 
duplicate, <TT
CLASS="LITERAL"
>FALSE</TT
> otherwise.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6455"
></A
><H3
><A
NAME="GTS-SEGMENT-CONNECT"
></A
>gts_segment_connect()</H3
><PRE
CLASS="PROGRAMLISTING"
>#define     gts_segment_connect(s, e1, e2)</PRE
><P
>Evaluates to <TT
CLASS="LITERAL"
>TRUE</TT
> if <CODE
CLASS="PARAMETER"
>s</CODE
> connects <CODE
CLASS="PARAMETER"
>e1</CODE
> with <CODE
CLASS="PARAMETER"
>e2</CODE
>, <TT
CLASS="LITERAL"
>FALSE</TT
> otherwise.</P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6468"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>s</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>a <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6475"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>e1</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>a <A
HREF="gts-vertices.html#GTSVERTEX"
><SPAN
CLASS="TYPE"
>GtsVertex</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6482"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>e2</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>another <A
HREF="gts-vertices.html#GTSVERTEX"
><SPAN
CLASS="TYPE"
>GtsVertex</SPAN
></A
>.
&#13;</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6489"
></A
><H3
><A
NAME="GTS-SEGMENTS-TOUCH"
></A
>gts_segments_touch()</H3
><PRE
CLASS="PROGRAMLISTING"
>#define     gts_segments_touch(s1, s2)</PRE
><P
></P
><P
></P
><TABLE
CLASS="variablelist"
BORDER="0"
CELLSPACING="0"
CELLPADDING="4"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6497"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>s1</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
></P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6502"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>s2</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>&#13;</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6507"
></A
><H3
><A
NAME="GTS-SEGMENTS-FROM-VERTICES"
></A
>gts_segments_from_vertices ()</H3
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="GSLIST"
>GSList</GTKDOCLINK
>*     gts_segments_from_vertices      (<GTKDOCLINK
HREF="GSLIST"
>GSList</GTKDOCLINK
> *vertices);</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="AEN6518"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>vertices</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a list of <A
HREF="gts-vertices.html#GTSVERTEX"
><SPAN
CLASS="TYPE"
>GtsVertex</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6525"><SPAN
STYLE="white-space: nowrap"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Returns</I
></SPAN
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a list of unique <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
> which have one of their vertices in 
<CODE
CLASS="PARAMETER"
>vertices</CODE
>.</P
></TD
></TR
></TBODY
></TABLE
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN6533"
></A
><H3
><A
NAME="GTS-SEGMENT-MIDVERTEX"
></A
>gts_segment_midvertex ()</H3
><PRE
CLASS="PROGRAMLISTING"
><A
HREF="gts-vertices.html#GTSVERTEX"
>GtsVertex</A
>*  gts_segment_midvertex           (<A
HREF="gts-segments.html#GTSSEGMENT"
>GtsSegment</A
> *s,
                                             <A
HREF="gts-vertices.html#GTSVERTEXCLASS"
>GtsVertexClass</A
> *klass);</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="AEN6545"><SPAN
STYLE="white-space: nowrap"
><CODE
CLASS="PARAMETER"
>s</CODE
>&nbsp;:</SPAN
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
> a <A
HREF="gts-segments.html#GTSSEGMENT"
><SPAN
CLASS="TYPE"
>GtsSegment</SPAN
></A
>.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6552"><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
> to be used for the new vertex.</P
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><A
NAME="AEN6559"><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-vertices.html#GTSVERTEX"
><SPAN
CLASS="TYPE"
>GtsVertex</SPAN
></A
>, midvertex of <CODE
CLASS="PARAMETER"
>s</CODE
>.</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-vertices.html"
><B
>&lt;&lt;&lt;&nbsp;Vertices</B
></A
></TD
><TD
ALIGN="right"
><A
ACCESSKEY="n"
HREF="gts-edges.html"
><B
>Edges&nbsp;&gt;&gt;&gt;</B
></A
></TD
></TR
></TABLE
></BODY
></HTML
>

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