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Code source de jpGraph 2.2 |
1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> 2 <HTML> 3 <HEAD> 4 <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=iso-iso-8859-1"> 5 <LINK REL="Start" HREF="index.html"> 6 <LINK REL="Contents" HREF="toc.html"> 7 <LINK REL="Prev" HREF="9126Adjustingthemarginswithautosizing.html"> 8 <LINK REL="Next" HREF="914AddingCSIMClientsideImageMapstoGanttcharts.html"> 9 <STYLE TYPE="text/css"><!-- 10 BODY { font-family: serif } 11 H1 { font-family: sans-serif } 12 H2 { font-family: sans-serif } 13 H3 { font-family: sans-serif } 14 H4 { font-family: sans-serif } 15 H5 { font-family: sans-serif } 16 H6 { font-family: sans-serif } 17 SUB { font-size: smaller } 18 SUP { font-size: smaller } 19 PRE { font-family: monospace } 20 A { text-decoration: none } 21 --></STYLE> 22 </HEAD> 23 <BODY> 24 <A HREF="toc.html">Contents</A> 25 <A HREF="9126Adjustingthemarginswithautosizing.html">Previous</A> 26 <A HREF="914AddingCSIMClientsideImageMapstoGanttcharts.html">Next</A> 27 <HR NOSHADE> 28 <H2><A NAME="9_13">9.13 Simplifying the drawing of Gantt graphs</A></H2> 29 <P> As we have shown in the previous examples constructing a Gantt chart 30 consists of a number of repetitive tasks; Create the individual 31 activity bars and add them to the graph.</P> 32 <P> Now when you have a basic understanding of how this works you are 33 ready to appreciate a small helper method. <A href=""> 34 GanttGraph::CreateSimple()</A>. This method takes a few arrays of data 35 which specifies you Gantt chart and then constructs this chart. By 36 using this method you sacrifices a few adjustment possibilities for 37 simplicity. This method is nothing magical it just takes the data for 38 the activities,(start and end date, titles, progress, any constrains 39 and so on) and constructs the activities and adds them to the graph.</P> 40 <P> The activities are specified in data array which for each activity 41 have the following fields</P> 42 <UL> 43 <LI> What row the activity should be on</LI> 44 <LI> Activity type, controls the appearance. Can be one of 45 <OL> 46 <LI> ACTYPE_NORMAL, A standard activty bar</LI> 47 <LI> ACTYPE_GROUP, A Grouping bar</LI> 48 <LI> ACTYPE_MILESTONE, A milestone</LI> 49 <LI></LI> 50 </OL> 51 <P></P> 52 </LI> 53 <LI> Title text</LI> 54 <LI> Start date</LI> 55 <LI> End date (NOT FOR Milestones!)</LI> 56 <LI> Caption</LI> 57 </UL> 58 <P></P> 59 <P> So for example to create a Gantt chart consisting of two activities 60 which are grouped and a milestone one would have to use something 61 similar to the following code</P> 62 <P><DIV class="phpscript"><CODE><FONT color="#000000"> <FONT color="#0000BB"> 63 $data </FONT><FONT color="#007700">= array( 64 <BR> array(</FONT><FONT color="#0000BB">0</FONT><FONT color="#007700">,</FONT><FONT 65 color="#0000BB">ACTYPE_GROUP</FONT><FONT color="#007700">, </FONT><FONT 66 color="#DD0000">"Phase 1"</FONT><FONT color="#007700">, </FONT><FONT 67 color="#DD0000">"2001-10-26"</FONT><FONT color="#007700">,</FONT><FONT color="#DD0000"> 68 "2001-11-23"</FONT><FONT color="#007700">,</FONT><FONT color="#DD0000"> 69 ""</FONT><FONT color="#007700">), 70 <BR> array(</FONT><FONT color="#0000BB">1</FONT><FONT color="#007700">,</FONT><FONT 71 color="#0000BB">ACTYPE_NORMAL</FONT><FONT color="#007700">, </FONT><FONT 72 color="#DD0000">" Label 2"</FONT><FONT color="#007700">, </FONT><FONT 73 color="#DD0000">"2001-10-26"</FONT><FONT color="#007700">,</FONT><FONT color="#DD0000"> 74 "2001-11-13"</FONT><FONT color="#007700">,</FONT><FONT color="#DD0000"> 75 "[KJ]"</FONT><FONT color="#007700">), 76 <BR> array(</FONT><FONT color="#0000BB">2</FONT><FONT color="#007700">,</FONT><FONT 77 color="#0000BB">ACTYPE_NORMAL</FONT><FONT color="#007700">, </FONT><FONT 78 color="#DD0000">" Label 3"</FONT><FONT color="#007700">, </FONT><FONT 79 color="#DD0000">"2001-11-20"</FONT><FONT color="#007700">,</FONT><FONT color="#DD0000"> 80 "2001-11-22"</FONT><FONT color="#007700">,</FONT><FONT color="#DD0000"> 81 "[EP]"</FONT><FONT color="#007700">), 82 <BR> array(</FONT><FONT color="#0000BB">3</FONT><FONT color="#007700">,</FONT><FONT 83 color="#0000BB">ACTYPE_MILESTONE</FONT><FONT color="#007700">,</FONT><FONT 84 color="#DD0000">" Phase 1 Done"</FONT><FONT color="#007700">, </FONT><FONT 85 color="#DD0000">"2001-11-23"</FONT><FONT color="#007700">,</FONT><FONT color="#DD0000"> 86 "M2"</FONT><FONT color="#007700">) ); 87 <BR> 88 <BR></FONT><FONT color="#FF8000">// Create the basic graph 89 <BR></FONT><FONT color="#0000BB">$graph </FONT><FONT color="#007700"> 90 = new </FONT><FONT color="#0000BB">GanttGraph</FONT><FONT color="#007700"> 91 (); 92 <BR></FONT><FONT color="#0000BB">$graph</FONT><FONT color="#007700">-></FONT><FONT 93 color="#0000BB">title</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB"> 94 Set</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000"> 95 "Gantt Graph using CreateSimple()"</FONT><FONT color="#007700">); 96 <BR> 97 <BR></FONT><FONT color="#FF8000">// Setup scale 98 <BR></FONT><FONT color="#0000BB">$graph</FONT><FONT color="#007700">-></FONT><FONT 99 color="#0000BB">ShowHeaders</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB"> 100 GANTT_HYEAR </FONT><FONT color="#007700">| </FONT><FONT color="#0000BB"> 101 GANTT_HMONTH </FONT><FONT color="#007700">| </FONT><FONT color="#0000BB"> 102 GANTT_HDAY </FONT><FONT color="#007700">| </FONT><FONT color="#0000BB"> 103 GANTT_HWEEK</FONT><FONT color="#007700">); 104 <BR></FONT><FONT color="#0000BB">$graph</FONT><FONT color="#007700">-></FONT><FONT 105 color="#0000BB">scale</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB"> 106 week</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">SetStyle</FONT><FONT 107 color="#007700">(</FONT><FONT color="#0000BB">WEEKSTYLE_FIRSTDAY</FONT><FONT 108 color="#007700">); 109 <BR> 110 <BR></FONT><FONT color="#FF8000">// Add the specified activities 111 <BR></FONT><FONT color="#0000BB">$graph</FONT><FONT color="#007700">-></FONT><FONT 112 color="#0000BB">CreateSimple</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB"> 113 $data</FONT><FONT color="#007700">); 114 <BR> 115 <BR></FONT><FONT color="#FF8000">// .. and stroke the graph 116 <BR></FONT><FONT color="#0000BB">$graph</FONT><FONT color="#007700">-></FONT><FONT 117 color="#0000BB">Stroke</FONT><FONT color="#007700">(); 118 <BR></FONT><FONT color="#0000BB"></FONT></FONT></CODE></DIV></P> 119 <P> This will then show up as<DIV class="example"> 120 <BR> <A href="exframes/frame_ganttsimpleex1.html" target="blank"><IMG border="0" 121 HEIGHT="231" src="img/img/img/img/img/img/ganttsimpleex1.png" WIDTH="523"></A> 122 <BR><B>Figure 170:</B> Using the simplified way via CreateSimple() 123 method <A href="exframes/frame_ganttsimpleex1.html" target="blank"> 124 [src]</A> 125 <P></P> 126 </DIV></P> 127 <P> You may (slightly) modify the appearance of the simple Gantt charts 128 by means of the methods <A href="">GanttGraph::SetSimpleFont()</A> and <A 129 href="">GanttGraph::SetSimpleStyle()</A> But not anything else, remember 130 that the purpose with this way of constructing graphs is to be simple. 131 If you need full advanced control you have to construct all the 132 activities in the "normal" way.</P> 133 <P> You can also specify constrains and progress for each bar by 134 supplying additional data arrays to GanttGraph::CreateSimple().</P> 135 <HR NOSHADE> 136 <A HREF="toc.html">Contents</A> 137 <A HREF="9126Adjustingthemarginswithautosizing.html">Previous</A> 138 <A HREF="914AddingCSIMClientsideImageMapstoGanttcharts.html">Next</A> 139 </BODY> 140 </HTML>
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