source: OGRE/trunk/ogrenew/Docs/manual/manual_4.html @ 692

Revision 692, 4.9 KB checked in by mattausch, 19 years ago (diff)

adding ogre 1.2 and dependencies
Line 
1<HTML>
2<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
3<!-- Created on , 12 2006 by texi2html 1.64 -->
4<!--
5Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
6            Karl Berry  <karl@freefriends.org>
7            Olaf Bachmann <obachman@mathematik.uni-kl.de>
8            and many others.
9Maintained by: Olaf Bachmann <obachman@mathematik.uni-kl.de>
10Send bugs and suggestions to <texi2html@mathematik.uni-kl.de>
11 
12-->
13<HEAD>
14<TITLE>OGRE Manual v1.2.0 ('Dagon'): The Core Objects</TITLE>
15
16<META NAME="description" CONTENT="OGRE Manual v1.2.0 ('Dagon'): The Core Objects">
17<META NAME="keywords" CONTENT="OGRE Manual v1.2.0 ('Dagon'): The Core Objects">
18<META NAME="resource-type" CONTENT="document">
19<META NAME="distribution" CONTENT="global">
20<META NAME="Generator" CONTENT="texi2html 1.64">
21<LINK TYPE="text/css" rel="stylesheet" href="../style.css"> 
22</HEAD>
23
24<BODY LANG="" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#800080" ALINK="#FF0000">
25
26<A NAME="SEC4"></A>
27<TABLE CELLPADDING=1 CELLSPACING=1 BORDER=0>
28<TR><TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_3.html#SEC3"> &lt; </A>]</TD>
29<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="index.html#SEC_Top"> Up </A>]</TD>
30<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_5.html#SEC8"> &gt; </A>]</TD>
31<TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="index.html#SEC_Top">Top</A>]</TD>
32<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_toc.html#SEC_Contents">Contents</A>]</TD>
33<TD VALIGN="MIDDLE" ALIGN="LEFT">[Index]</TD>
34<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_abt.html#SEC_About"> ? </A>]</TD>
35</TR></TABLE>
36<HR SIZE=1>
37<H1> 2. The Core Objects </H1>
38<!--docid::SEC4::-->
39<A NAME="SEC5"></A>
40<H2> Introduction  </H2>
41<!--docid::SEC5::-->
42<P>
43
44This tutorial gives you a quick summary of the core objects that you will use in OGRE and what they are used for.
45</P><P>
46
47<A NAME="SEC6"></A>
48<H2> A Word About Namespaces </H2>
49<!--docid::SEC6::-->
50<P>
51
52OGRE uses a C++ feature called namespaces. This lets you put classes, enums, structures, anything really within a 'namespace' scope which is an easy way to prevent name clashes, i.e. situations where you have 2 things called the same thing. Since OGRE is designed to be used inside other applications, I wanted to be sure that name clashes would not be a problem. Some people prefix their classes/types with a short code because some compilers don't support namespaces, but I chose to use them because they are the 'right' way to do it. Sorry if you have a non-compliant compiler, but hey, the C++ standard has been defined for years, so compiler writers really have no excuse anymore. If your compiler doesn't support namespaces then it's probably because it's sh*t - get a better one. ;)
53</P><P>
54
55This means every class, type etc should be prefixed with 'Ogre::', e.g. 'Ogre::Camera', 'Ogre::Vector3' etc which means if elsewhere in your application you have used a Vector3 type you won't get name clashes. To avoid lots of extra typing you can add a 'using namespace Ogre;' statement to your code which means you don't have to type the 'Ogre::' prefix unless there is ambiguity (in the situation where you have another definition with the same name).
56</P><P>
57
58<A NAME="SEC7"></A>
59<H2> UML Diagram </H2>
60<!--docid::SEC7::-->
61<P>
62
63Shown below is a UML diagram of the core objects and how they relate to each other. Even if you don't know UML I'm sure you can work out the gist...
64</P><P>
65
66<CENTER><IMG SRC="images/uml-overview.png" ALT="images/uml-overview"></CENTER>
67</P><P>
68
69More details on these objects can be found in the following sections.
70</P><P>
71
72<A NAME="The Root Object"></A>
73<HR SIZE=1>
74<TABLE CELLPADDING=1 CELLSPACING=1 BORDER=0>
75<TR><TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_3.html#SEC3"> &lt; </A>]</TD>
76<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="index.html#SEC_Top"> Up </A>]</TD>
77<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_5.html#SEC8"> &gt; </A>]</TD>
78<TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="index.html#SEC_Top">Top</A>]</TD>
79<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_toc.html#SEC_Contents">Contents</A>]</TD>
80<TD VALIGN="MIDDLE" ALIGN="LEFT">[Index]</TD>
81<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_abt.html#SEC_About"> ? </A>]</TD>
82</TR></TABLE>
83<BR> 
84<FONT SIZE="-1">
85This document was generated
86by <I>Steve Streeting</I> on <I>, 12 2006</I>
87using <A HREF="http://www.mathematik.uni-kl.de/~obachman/Texi2html
88"><I>texi2html</I></A>
89
90</BODY>
91</HTML>
Note: See TracBrowser for help on using the repository browser.