27 lines
3.8 KiB
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27 lines
3.8 KiB
HTML
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Chapter 4. Your first graph script</title><link rel="stylesheet" type="text/css" href="manual.css"><meta name="generator" content="DocBook XSL Stylesheets V1.76.0"><link rel="home" href="index.html" title="JpGraph Manual"><link rel="up" href="pt02.html" title="Part II. Basic graph creation"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 4. Your first graph script</th></tr><tr><td width="20%" align="left"> </td><th width="60%" align="center">Part II. Basic graph creation</th><td width="20%" align="right"> </td></tr></table><hr></div><div class="chapter" title="Chapter 4. Your first graph script"><div class="titlepage"><div><div><h2 class="title"><a name="id2492877"></a>Chapter 4. Your first graph script</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="sect1"><a href="ch04.html#id2492897">4.1. Some words of caution</a></span></dt><dt><span class="sect1"><a href="ch04s02.html">4.2. Graphing the number of sun spots during the 19th Century</a></span></dt><dd><dl><dt><span class="sect2"><a href="ch04s02.html#id2492934">4.2.1. The historic data</a></span></dt><dt><span class="sect2"><a href="ch04s02.html#sec.preparing-sunspots-data">4.2.2. Preparing the data</a></span></dt><dt><span class="sect2"><a href="ch04s02.html#id2492973">4.2.3. A basic line graph</a></span></dt><dt><span class="sect2"><a href="ch04s02.html#id2493198">4.2.4. A basic bar graph</a></span></dt></dl></dd></dl></div>
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<p title="What you will learn in this chapter">
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<b>What you will learn in this chapter. </b>
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This chapter will illustrate how a basic line and bar graph can be created and it
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will also show how input data should be prepared so it can be read and used by the
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library.
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</p>
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<div class="sect1" title="Some words of caution"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2492897"></a>Some words of caution</h2></div></div></div>
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<p>In order to quickly show a very first example we will create both a basic line
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graph and a basic bar graph that depicts the number of sun spots (a.k.a. solar
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flares) during the 19th century. The goal of this example is not to show every
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possible configuration and parameter supported by the library but rather show how
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simple it is to create a basic graph.</p>
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<p>In the sections following this one we will describe more in details the
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idiosyncrasies about dynamic graph generation and JpGraph so even if you don't fully
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understand all the detail it will give a flavor of what is to come. As with all
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complex libraries one has to start somewhere and sometimes accept some practices
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without yet fully understand them. However, the goal of this manual is that after
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reading it through you will fully understand every single detail shown in this
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script.</p>
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<p>So, without further due, let's start.</p>
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</div>
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