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<HR NOSHADE>
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<H2><A NAME="11_5">11.5 Sample application: Drawing DB schema</A></H2>
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<P> As a final example we shortly discuss how the canvas type of graph
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was used to generate the DB schema for the DDDA architecture.</P>
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<P> The library php file "utils/misc/imgdbschema.php" included in the
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distribution contains some utility classes to make the drawing of table
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schemes easier. It contains two basic classes, Class ImgDBTable and
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Class ImgDBSchema. The first class understand how to draw an image
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illustrating a single table. The second class is responsible for
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automatically extract all the relevant information from a DB to draw a
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complete DB Schema.</P>
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<P> Before going into this a little bit more we show what an example of
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this might look like.<DIV class="example">
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<BR> <A href="exframes/frame_dbschemaex1.html" target="blank"><IMG border="0"
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HEIGHT="750" src="img/dbschemaex1.png" WIDTH="600"></A>
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<BR><B>Figure 190:</B> Example of using the canvas graph style together
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with the imgdbschema.php library to semi-automatically generate a DB
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schema <A href="exframes/frame_dbschemaex1.html" target="blank">[src]</A>
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<P></P>
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</DIV></P>
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<P></P>
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<P> Before going on it should be noted that the ImgDBSchema assumes that
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the DB can be accessed through a DB abstraction layer modeled after the
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abstraction layer available in the 'jpdb.php' file in the DDDA
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architecture. This abstraction layer assumes a MySQL database in the
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bottom. This specific dependency of this particular abstraction layer
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is the reason why these classes is not included in the generic canvas
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tools file.</P>
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<P> The second thing to note is that this library does not contain a
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complete automatic-layout engine but rather a very simple automatic
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system which, if nothing else is specified, just puts the table in a
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rectangular grid. A complete graph layout engine would simple be to
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much to write in this context. This is also a very difficult
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optimization problem and sofar not even any of the available research
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programs that tries this can achieve a satisfactory layout without
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manual intervention.</P>
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<P> The critical lines in the code to generate the above graph is<DIV class="phpscript">
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<CODE><FONT color="#000000"> <FONT color="#0000BB"> $tblposadj</FONT><FONT
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color="#007700">=array(</FONT><FONT color="#0000BB">$tlo</FONT><FONT color="#007700">
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,</FONT><FONT color="#0000BB">0</FONT><FONT color="#007700">,</FONT><FONT
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color="#0000BB">$tblwidth</FONT><FONT color="#007700">+</FONT><FONT color="#0000BB">
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$tlo</FONT><FONT color="#007700">+</FONT><FONT color="#0000BB">2</FONT><FONT
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color="#007700">,</FONT><FONT color="#0000BB">0</FONT><FONT color="#007700">
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,</FONT><FONT color="#0000BB">2</FONT><FONT color="#007700">*</FONT><FONT
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color="#0000BB">$tblwidth</FONT><FONT color="#007700">+</FONT><FONT color="#0000BB">
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$tlo</FONT><FONT color="#007700">+</FONT><FONT color="#0000BB">4</FONT><FONT
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color="#007700">,</FONT><FONT color="#0000BB">0</FONT><FONT color="#007700">
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,-</FONT><FONT color="#0000BB">1</FONT><FONT color="#007700">,</FONT><FONT
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color="#0000BB">16</FONT><FONT color="#007700">,-</FONT><FONT color="#0000BB">
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1</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">16</FONT><FONT
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color="#007700">);
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<BR></FONT><FONT color="#0000BB">$dbschema </FONT><FONT color="#007700">
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= new </FONT><FONT color="#0000BB">ImgDBSchema</FONT><FONT color="#007700">
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(</FONT><FONT color="#DD0000">"jpgraph_doc"</FONT><FONT color="#007700">
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,</FONT><FONT color="#DD0000">"FormatTblName"</FONT><FONT color="#007700">
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,</FONT><FONT color="#DD0000">"FormatFldName"</FONT><FONT color="#007700">
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);
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<BR></FONT><FONT color="#0000BB">$dbschema</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">SetMargin</FONT><FONT color="#007700">(</FONT><FONT
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color="#0000BB">$leftm</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">
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$topm</FONT><FONT color="#007700">);
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<BR></FONT><FONT color="#0000BB">$dbschema</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">SetTableWidth</FONT><FONT color="#007700">
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(</FONT><FONT color="#0000BB">$tblwidth</FONT><FONT color="#007700">);
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<BR></FONT><FONT color="#0000BB">$dbschema</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">Stroke</FONT><FONT color="#007700">(</FONT><FONT
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color="#0000BB">$this</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">
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img</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">$this</FONT><FONT
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color="#007700">-></FONT><FONT color="#0000BB">iscale</FONT><FONT color="#007700">
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,</FONT><FONT color="#0000BB">$tblposadj</FONT><FONT color="#007700">);</FONT><FONT
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color="#0000BB"></FONT></FONT></CODE></DIV></P>
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<P></P>
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<P> The rest of the code in the file is just to setup the canvas, add an
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indented rectangle to group some tables and generate a footer with the
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date and time this image was generated.</P>
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<P> The first line instantiates a new ImgDBSCheme layout engine asking
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it to draw an image for the database 'jpgraph_doc'. The following two
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arguments specify two callback functions for formatting the text for
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header and each field in a table.</P>
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<P> The next line specify the top left margin where the drawing of the
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tables should be started.</P>
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<P> The third line specify the width of a single table. The final lines
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starts the engine and draws all tables in the database to the canvas.
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The final argument requires some further explanation. This is an offset
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(x,y) from the top left corner how each individual table should be
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positioned. If the value is -1 indicates that the default value should
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be used. If this array is not specified then the tables will simple
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arranged line by line.</P>
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<P> The full source code for drawing this DB schema example is shown
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below.</P>
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<P><DIV class="phpscript">(File: dbschemaex1.php)
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<BR><CODE><FONT color="#000000"> <FONT color="#0000BB"><?php
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<BR></FONT><FONT color="#FF8000">
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/*=======================================================================
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<BR>// File: DBSCHEMAEX1.PHP
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<BR>// Description: Draw a DB schema of the DDDA architecture
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<BR>// Created: 2002-08-25
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<BR>
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// Ver: $Id: dbschemaex1.php,v 1.1 2002/08/27 20:08:57 aditus Exp $
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<BR>//
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<BR>// License: This code is released under QPL
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<BR>// Copyright (C) 2001,2002 Johan Persson
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<BR>
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// Note: The actual drawing of the tables are semi-automatically
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<BR>
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// but you can easily adjust the individual tables position
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<BR>// with the 'tblposadj' array.
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<BR>//
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<BR>
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//========================================================================
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<BR>*/
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<BR></FONT><FONT color="#007700">include </FONT><FONT color="#DD0000">
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"../jpgraph.php"</FONT><FONT color="#007700">;
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<BR>include </FONT><FONT color="#DD0000">"../jpgraph_canvas.php"</FONT><FONT
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color="#007700">;
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<BR>include </FONT><FONT color="#DD0000">"../jpgraph_canvtools.php"</FONT><FONT
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color="#007700">;
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<BR>include </FONT><FONT color="#DD0000">"../imgdbschema.inc"</FONT><FONT
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color="#007700">;
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<BR>include </FONT><FONT color="#DD0000">"../jpdb.php"</FONT><FONT color="#007700">
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;
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<BR>
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<BR>
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<BR></FONT><FONT color="#FF8000">
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// Global callback to format the table header names
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<BR></FONT><FONT color="#007700">function </FONT><FONT color="#0000BB">
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FormatTblName</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
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$aName</FONT><FONT color="#007700">) {
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<BR> </FONT><FONT color="#FF8000">
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// We want to replace any specifi references to the
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<BR> // 'JpGraph' project with the generic '<project>'
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<BR> </FONT><FONT color="#007700">return </FONT><FONT color="#0000BB">
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str_replace</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
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'JpGraph'</FONT><FONT color="#007700">,</FONT><FONT color="#DD0000">
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'<project>'</FONT><FONT color="#007700">, </FONT><FONT color="#0000BB">
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$aName</FONT><FONT color="#007700">);
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<BR>}
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<BR>
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<BR></FONT><FONT color="#FF8000">
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// Global callback to format each field name in the table
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<BR></FONT><FONT color="#007700">function </FONT><FONT color="#0000BB">
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FormatFldName</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
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$aName</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">$aTable</FONT><FONT
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color="#007700">) {
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<BR> return </FONT><FONT color="#0000BB">$aName</FONT><FONT color="#007700">
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;
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<BR>}
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<BR>
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<BR>
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<BR>class </FONT><FONT color="#0000BB">Driver </FONT><FONT color="#007700">
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{
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<BR>
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<BR> var </FONT><FONT color="#0000BB">$ig</FONT><FONT color="#007700">
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, </FONT><FONT color="#0000BB">$img</FONT><FONT color="#007700">, </FONT><FONT
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color="#0000BB">$iscale</FONT><FONT color="#007700">, </FONT><FONT color="#0000BB">
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$ishape</FONT><FONT color="#007700">;
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<BR> var </FONT><FONT color="#0000BB">$iymax</FONT><FONT color="#007700">
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,</FONT><FONT color="#0000BB">$ixmax</FONT><FONT color="#007700">;
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<BR> var </FONT><FONT color="#0000BB">$iwidth</FONT><FONT color="#007700">
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,</FONT><FONT color="#0000BB">$iheight</FONT><FONT color="#007700">;
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<BR>
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<BR> function </FONT><FONT color="#0000BB">Driver</FONT><FONT color="#007700">
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() {
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<BR>
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<BR> </FONT><FONT color="#FF8000">
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// Define Image size and coordinate grid space to work within
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">iwidth </FONT><FONT color="#007700">= </FONT><FONT
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color="#0000BB">600</FONT><FONT color="#007700">;
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">iheight</FONT><FONT color="#007700">= </FONT><FONT
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color="#0000BB">750</FONT><FONT color="#007700">;
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">iymax </FONT><FONT color="#007700">= </FONT><FONT
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color="#0000BB">50</FONT><FONT color="#007700">;
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">ixmax </FONT><FONT color="#007700">= </FONT><FONT
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color="#0000BB">55</FONT><FONT color="#007700">;
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<BR>
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<BR> </FONT><FONT color="#FF8000">// Setup a basic canvas
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">ig </FONT><FONT color="#007700">= new </FONT><FONT
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color="#0000BB">CanvasGraph</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
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$this</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">iwidth</FONT><FONT
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color="#007700">,</FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">iheight</FONT><FONT color="#007700">,</FONT><FONT
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color="#DD0000">'auto'</FONT><FONT color="#007700">);
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">img </FONT><FONT color="#007700">= </FONT><FONT
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color="#0000BB">$this</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">
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ig</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">img</FONT><FONT
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color="#007700">;
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<BR>
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<BR> </FONT><FONT color="#FF8000">// Define the scale to be used
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">iscale </FONT><FONT color="#007700">
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= new </FONT><FONT color="#0000BB">CanvasScale</FONT><FONT color="#007700">
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(</FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">-></FONT><FONT
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color="#0000BB">ig</FONT><FONT color="#007700">);
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">iscale</FONT><FONT color="#007700">-></FONT><FONT
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color="#0000BB">Set</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
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0</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">$this</FONT><FONT
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color="#007700">-></FONT><FONT color="#0000BB">ixmax</FONT><FONT color="#007700">
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,</FONT><FONT color="#0000BB">0</FONT><FONT color="#007700">,</FONT><FONT
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color="#0000BB">$this</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">
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iymax</FONT><FONT color="#007700">);
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">ishape </FONT><FONT color="#007700">
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= new </FONT><FONT color="#0000BB">Shape</FONT><FONT color="#007700">(</FONT><FONT
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color="#0000BB">$this</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">
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ig</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">$this</FONT><FONT
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color="#007700">-></FONT><FONT color="#0000BB">iscale</FONT><FONT color="#007700">
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);
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<BR>
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<BR> </FONT><FONT color="#FF8000">// A small frame around the canvas
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">ig</FONT><FONT color="#007700">-></FONT><FONT
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color="#0000BB">SetMargin</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
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2</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">3</FONT><FONT
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color="#007700">,</FONT><FONT color="#0000BB">2</FONT><FONT color="#007700">
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,</FONT><FONT color="#0000BB">3</FONT><FONT color="#007700">);
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">ig</FONT><FONT color="#007700">-></FONT><FONT
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color="#0000BB">SetMarginColor</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
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"teal"</FONT><FONT color="#007700">);
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<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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-></FONT><FONT color="#0000BB">ig</FONT><FONT color="#007700">-></FONT><FONT
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256 |
color="#0000BB">InitFrame</FONT><FONT color="#007700">();
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257 |
<BR>
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258 |
<BR> }
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259 |
<BR>
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260 |
<BR> function </FONT><FONT color="#0000BB">Run</FONT><FONT color="#007700">
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261 |
() {
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262 |
<BR>
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263 |
<BR> </FONT><FONT color="#0000BB">$leftm</FONT><FONT color="#007700">
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264 |
=</FONT><FONT color="#0000BB">1.5</FONT><FONT color="#007700">; </FONT><FONT
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265 |
color="#FF8000">// Left margin (for table schemes)
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266 |
<BR> </FONT><FONT color="#0000BB">$topm</FONT><FONT color="#007700">=</FONT><FONT
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267 |
color="#0000BB">5</FONT><FONT color="#007700">; </FONT><FONT color="#FF8000">
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268 |
// Top margin (for table schemes)
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269 |
<BR> </FONT><FONT color="#0000BB">$tblwidth</FONT><FONT color="#007700">
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270 |
=</FONT><FONT color="#0000BB">15</FONT><FONT color="#007700">; </FONT><FONT
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271 |
color="#FF8000">// Individual table width
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272 |
<BR> </FONT><FONT color="#0000BB">$tlo</FONT><FONT color="#007700">=</FONT><FONT
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273 |
color="#0000BB">1</FONT><FONT color="#007700">; </FONT><FONT color="#FF8000">
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274 |
// Offset for top line
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275 |
<BR>
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276 |
<BR> // Add the background color for the project specific tables
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277 |
<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
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278 |
-></FONT><FONT color="#0000BB">ishape</FONT><FONT color="#007700">-></FONT><FONT
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279 |
color="#0000BB">IndentedRectangle</FONT><FONT color="#007700">(</FONT><FONT
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280 |
color="#0000BB">$leftm</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">
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281 |
$topm</FONT><FONT color="#007700">-</FONT><FONT color="#0000BB">1</FONT><FONT
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282 |
color="#007700">,</FONT><FONT color="#0000BB">3</FONT><FONT color="#007700">
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283 |
*</FONT><FONT color="#0000BB">$tblwidth</FONT><FONT color="#007700">+</FONT><FONT
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284 |
color="#0000BB">$tlo</FONT><FONT color="#007700">+</FONT><FONT color="#0000BB">
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285 |
6</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">45</FONT><FONT
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286 |
color="#007700">,
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287 |
<BR> </FONT><FONT color="#0000BB">$tlo</FONT><FONT color="#007700">
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288 |
+</FONT><FONT color="#0000BB">2</FONT><FONT color="#007700">*</FONT><FONT
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289 |
color="#0000BB">$tblwidth</FONT><FONT color="#007700">+</FONT><FONT color="#0000BB">
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290 |
2</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">30</FONT><FONT
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291 |
color="#007700">,</FONT><FONT color="#0000BB">CORNER_BOTTOMLEFT</FONT><FONT
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292 |
color="#007700">,
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293 |
<BR> </FONT><FONT color="#DD0000">'lightblue'</FONT><FONT
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294 |
color="#007700">);
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295 |
<BR>
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296 |
<BR> </FONT><FONT color="#FF8000">
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297 |
// Stroke the tables (series of x,y offsets, If =-1 then use the
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298 |
<BR> // automtic positioning
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299 |
<BR> </FONT><FONT color="#0000BB">$tblposadj</FONT><FONT color="#007700">
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300 |
=array(</FONT><FONT color="#0000BB">$tlo</FONT><FONT color="#007700">,</FONT><FONT
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301 |
color="#0000BB">0</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">
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302 |
$tblwidth</FONT><FONT color="#007700">+</FONT><FONT color="#0000BB">$tlo</FONT><FONT
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303 |
color="#007700">+</FONT><FONT color="#0000BB">2</FONT><FONT color="#007700">
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304 |
,</FONT><FONT color="#0000BB">0</FONT><FONT color="#007700">,</FONT><FONT
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305 |
color="#0000BB">2</FONT><FONT color="#007700">*</FONT><FONT color="#0000BB">
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306 |
$tblwidth</FONT><FONT color="#007700">+</FONT><FONT color="#0000BB">$tlo</FONT><FONT
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307 |
color="#007700">+</FONT><FONT color="#0000BB">4</FONT><FONT color="#007700">
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308 |
,
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309 |
<BR> </FONT><FONT color="#0000BB">0</FONT><FONT color="#007700">
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310 |
,-</FONT><FONT color="#0000BB">1</FONT><FONT color="#007700">,</FONT><FONT
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311 |
color="#0000BB">16</FONT><FONT color="#007700">,-</FONT><FONT color="#0000BB">
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312 |
1</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">16</FONT><FONT
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313 |
color="#007700">);
|
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314 |
<BR> </FONT><FONT color="#0000BB">$dbschema </FONT><FONT color="#007700">
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315 |
= new </FONT><FONT color="#0000BB">ImgDBSchema</FONT><FONT color="#007700">
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316 |
(</FONT><FONT color="#DD0000">'jpgraph_doc'</FONT><FONT color="#007700">
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|
317 |
,</FONT><FONT color="#DD0000">'FormatTblName'</FONT><FONT color="#007700">
|
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|
318 |
,</FONT><FONT color="#DD0000">'FormatFldName'</FONT><FONT color="#007700">
|
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|
319 |
);
|
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|
320 |
<BR> </FONT><FONT color="#0000BB">$dbschema</FONT><FONT color="#007700">
|
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|
321 |
-></FONT><FONT color="#0000BB">SetMargin</FONT><FONT color="#007700">(</FONT><FONT
|
|
|
322 |
color="#0000BB">$leftm</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">
|
|
|
323 |
$topm</FONT><FONT color="#007700">);
|
|
|
324 |
<BR> </FONT><FONT color="#0000BB">$dbschema</FONT><FONT color="#007700">
|
|
|
325 |
-></FONT><FONT color="#0000BB">SetTableWidth</FONT><FONT color="#007700">
|
|
|
326 |
(</FONT><FONT color="#0000BB">$tblwidth</FONT><FONT color="#007700">);
|
|
|
327 |
<BR> </FONT><FONT color="#0000BB">$dbschema</FONT><FONT color="#007700">
|
|
|
328 |
-></FONT><FONT color="#0000BB">Stroke</FONT><FONT color="#007700">(</FONT><FONT
|
|
|
329 |
color="#0000BB">$this</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">
|
|
|
330 |
img</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">$this</FONT><FONT
|
|
|
331 |
color="#007700">-></FONT><FONT color="#0000BB">iscale</FONT><FONT color="#007700">
|
|
|
332 |
,</FONT><FONT color="#0000BB">$tblposadj</FONT><FONT color="#007700">);
|
|
|
333 |
<BR>
|
|
|
334 |
<BR> </FONT><FONT color="#0000BB">$tt </FONT><FONT color="#007700">
|
|
|
335 |
= new </FONT><FONT color="#0000BB">CanvasRectangleText</FONT><FONT color="#007700">
|
|
|
336 |
();
|
|
|
337 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
338 |
color="#0000BB">SetFillColor</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
|
|
|
339 |
''</FONT><FONT color="#007700">);
|
|
|
340 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
341 |
color="#0000BB">SetColor</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
|
|
|
342 |
''</FONT><FONT color="#007700">);
|
|
|
343 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
344 |
color="#0000BB">SetFontColor</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
|
|
|
345 |
'navy'</FONT><FONT color="#007700">);
|
|
|
346 |
<BR>
|
|
|
347 |
<BR> </FONT><FONT color="#FF8000">// Add explanation
|
|
|
348 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
349 |
color="#0000BB">SetFont</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
|
|
|
350 |
FF_ARIAL</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">
|
|
|
351 |
FS_NORMAL</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">12</FONT><FONT
|
|
|
352 |
color="#007700">);
|
|
|
353 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
354 |
color="#0000BB">Set</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
|
|
|
355 |
'Project specific tables'</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">
|
|
|
356 |
$tblwidth</FONT><FONT color="#007700">+</FONT><FONT color="#0000BB">
|
|
|
357 |
$leftm</FONT><FONT color="#007700">+</FONT><FONT color="#0000BB">3</FONT><FONT
|
|
|
358 |
color="#007700">,</FONT><FONT color="#0000BB">16</FONT><FONT color="#007700">
|
|
|
359 |
,</FONT><FONT color="#0000BB">15</FONT><FONT color="#007700">);
|
|
|
360 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
361 |
color="#0000BB">Stroke</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
|
|
|
362 |
$this</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">img</FONT><FONT
|
|
|
363 |
color="#007700">,</FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
|
|
|
364 |
-></FONT><FONT color="#0000BB">iscale</FONT><FONT color="#007700">);
|
|
|
365 |
<BR>
|
|
|
366 |
<BR> </FONT><FONT color="#FF8000">// Add title
|
|
|
367 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
368 |
color="#0000BB">SetColor</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
|
|
|
369 |
''</FONT><FONT color="#007700">);
|
|
|
370 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
371 |
color="#0000BB">SetFont</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
|
|
|
372 |
FF_VERDANA</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">
|
|
|
373 |
FS_BOLD</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">26</FONT><FONT
|
|
|
374 |
color="#007700">);
|
|
|
375 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
376 |
color="#0000BB">Set</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
|
|
|
377 |
'DDDA - DB Schema'</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">
|
|
|
378 |
9</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">0.5</FONT><FONT
|
|
|
379 |
color="#007700">,</FONT><FONT color="#0000BB">30</FONT><FONT color="#007700">
|
|
|
380 |
);
|
|
|
381 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
382 |
color="#0000BB">Stroke</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
|
|
|
383 |
$this</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">img</FONT><FONT
|
|
|
384 |
color="#007700">,</FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
|
|
|
385 |
-></FONT><FONT color="#0000BB">iscale</FONT><FONT color="#007700">);
|
|
|
386 |
<BR>
|
|
|
387 |
<BR> </FONT><FONT color="#FF8000">// Add a version and date
|
|
|
388 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
389 |
color="#0000BB">SetFillColor</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
|
|
|
390 |
'yellow'</FONT><FONT color="#007700">);
|
|
|
391 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
392 |
color="#0000BB">SetFont</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
|
|
|
393 |
FF_FONT1</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">
|
|
|
394 |
FS_NORMAL</FONT><FONT color="#007700">,</FONT><FONT color="#0000BB">10</FONT><FONT
|
|
|
395 |
color="#007700">);
|
|
|
396 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
397 |
color="#0000BB">Set</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">
|
|
|
398 |
"Generated: "</FONT><FONT color="#007700">.</FONT><FONT color="#0000BB">
|
|
|
399 |
date</FONT><FONT color="#007700">(</FONT><FONT color="#DD0000">"ymd H:i"</FONT><FONT
|
|
|
400 |
color="#007700">,</FONT><FONT color="#0000BB">time</FONT><FONT color="#007700">
|
|
|
401 |
()),</FONT><FONT color="#0000BB">1</FONT><FONT color="#007700">,</FONT><FONT
|
|
|
402 |
color="#0000BB">$this</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">
|
|
|
403 |
iymax</FONT><FONT color="#007700">*</FONT><FONT color="#0000BB">0.96</FONT><FONT
|
|
|
404 |
color="#007700">,</FONT><FONT color="#0000BB">15</FONT><FONT color="#007700">
|
|
|
405 |
);
|
|
|
406 |
<BR> </FONT><FONT color="#0000BB">$tt</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
407 |
color="#0000BB">Stroke</FONT><FONT color="#007700">(</FONT><FONT color="#0000BB">
|
|
|
408 |
$this</FONT><FONT color="#007700">-></FONT><FONT color="#0000BB">img</FONT><FONT
|
|
|
409 |
color="#007700">,</FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
|
|
|
410 |
-></FONT><FONT color="#0000BB">iscale</FONT><FONT color="#007700">);
|
|
|
411 |
<BR>
|
|
|
412 |
<BR> </FONT><FONT color="#0000BB">$this</FONT><FONT color="#007700">
|
|
|
413 |
-></FONT><FONT color="#0000BB">ig</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
414 |
color="#0000BB">Stroke</FONT><FONT color="#007700">();
|
|
|
415 |
<BR> }
|
|
|
416 |
<BR>}
|
|
|
417 |
<BR>
|
|
|
418 |
<BR></FONT><FONT color="#0000BB">$driver </FONT><FONT color="#007700">
|
|
|
419 |
= new </FONT><FONT color="#0000BB">Driver</FONT><FONT color="#007700">
|
|
|
420 |
();
|
|
|
421 |
<BR></FONT><FONT color="#0000BB">$driver</FONT><FONT color="#007700">-></FONT><FONT
|
|
|
422 |
color="#0000BB">Run</FONT><FONT color="#007700">();
|
|
|
423 |
<BR>
|
|
|
424 |
<BR></FONT><FONT color="#0000BB">?>
|
|
|
425 |
<BR></FONT>
|
|
|
426 |
<BR></FONT></CODE></DIV></P>
|
|
|
427 |
<HR NOSHADE>
|
|
|
428 |
<A HREF="toc.html">Contents</A>
|
|
|
429 |
<A HREF="114Usingacanvasscale.html">Previous</A>
|
|
|
430 |
<A HREF="12AntiSpamChallenges.html">Next</A>
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|
431 |
</BODY>
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432 |
</HTML>
|