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Added calculation of the distance between a line and a point
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
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<HTML
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><HEAD
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><TITLE
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>&#13; pgSphere 1.1.5
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</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
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REL="NEXT"
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TITLE="
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What is pgSphere?
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"
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HREF="x20.html"><LINK
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REL="STYLESHEET"
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TYPE="text/css"
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HREF="pg_sphere.css"><META
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NAME="creation"
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CONTENT="2023-08-04T08:50:28"><META
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HTTP-EQUIV="Content-Type"
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CONTENT="text/html; charset=utf-8"></HEAD
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><BODY
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CLASS="article"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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CLASS="ARTICLE"
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><DIV
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CLASS="TITLEPAGE"
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><H1
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CLASS="title"
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><A
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NAME="AEN2"
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>pgSphere 1.1.5</A
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></H1
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><H3
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CLASS="author"
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><A
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NAME="AEN4"
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>pgSphere development team</A
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></H3
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><DIV
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><DIV
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CLASS="abstract"
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><P
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></P
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><A
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NAME="AEN6"
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></A
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>
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<P
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>&#13; <DIV
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CLASS="mediaobject"
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><P
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>&#13; <IMG
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SRC="img/logo.png"
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WIDTH="168px">
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</P
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></DIV
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>
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</P
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>
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<P
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>&#13; <SPAN
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CLASS="application"
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>pgSphere</SPAN
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> provides spherical data
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types, functions, and operators for
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<SPAN
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CLASS="application"
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>PostgreSQL</SPAN
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>.
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</P
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>
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<P
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>&#13; The project is hosted at <A
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HREF="http://pgfoundry.org/projects/pgsphere/"
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TARGET="_top"
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><I
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CLASS="citetitle"
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>pgfoundry.org</I
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></A
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>
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and <A
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HREF="https://github.com/akorotkov/pgsphere"
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TARGET="_top"
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><I
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CLASS="citetitle"
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>https://github.com/akorotkov/pgsphere</I
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></A
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>
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</P
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>
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<P
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>
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This document
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describes installation and usage of this module.
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</P
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>
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<P
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></P
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></DIV
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></DIV
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><HR></DIV
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><DIV
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CLASS="TOC"
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><DL
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><DT
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><B
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>Table of Contents</B
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></DT
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><DT
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>1. <A
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HREF="x20.html"
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>What is pgSphere?</A
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></DT
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><DT
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>2. <A
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HREF="x46.html"
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>Installation</A
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></DT
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><DD
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><DL
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><DT
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>2.1. <A
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HREF="x46.html#AEN48"
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>Download</A
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></DT
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><DT
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>2.2. <A
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HREF="x46.html#AEN56"
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>Installation</A
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></DT
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><DT
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>2.3. <A
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HREF="x46.html#AEN95"
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>Creating a database with <SPAN
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CLASS="application"
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>pgSphere</SPAN
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></A
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></DT
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></DL
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></DD
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><DT
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>3. <A
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HREF="types.html"
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>Data types</A
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></DT
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><DD
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><DL
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><DT
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>3.1. <A
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HREF="types.html#dt.over"
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>Overview</A
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></DT
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><DT
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>3.2. <A
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HREF="types.html#dt.spoint"
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>Point</A
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></DT
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></DL
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></DD
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></DL
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></DIV
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>
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</DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>&nbsp;</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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>&nbsp;</TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="x20.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>&nbsp;</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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>&nbsp;</TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>What is pgSphere?</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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>

Diff for: ‎doc/operators.sgm

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a non-boolean operator returning the distance between two
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objects in radians. Currently,
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<application>pgSphere</application> supports only distances
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between points, circles, and between point and circle. If the
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between points, circles, between point and circle, and
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between point and line. If the
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objects are overlapping, the distance operator returns zero
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(0.0).
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</para>
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<![CDATA[ dist]]>
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<![CDATA[------]]>
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<![CDATA[ 16]]>
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<![CDATA[(1 row)]]>
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</programlisting>
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</example>
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<example>
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<title>Distance between point and line</title>
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<programlisting>
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<![CDATA[sql> SELECT 180 * (sline '( 0d, 0d, 0d, XYZ ), 40d ' <-> spoint '( 0d, 90d )')]]>
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<![CDATA[ / pi() AS dist ;]]>
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<![CDATA[ dist]]>
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<![CDATA[------]]>
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<![CDATA[ 90]]>
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<![CDATA[(1 row)]]>
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</programlisting>
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</example>

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