NetCharts® Applets and PHP with FlatFiles:

 

The complete PHP code for Sales Data example

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<html>
<head>
<title>Sales Data Applet</title>
</head>
<body>
<h2>Sales Data</h2>
This PHP page will extract data from a flat file data source and populate an applet with it
<p>
<?php
/*
Copyright 2001 by Visual Mining, Inc, Rockville, MD USA
Permission to use, copy, modify, or distribute this software
and its documentation for any purpose is hereby granted.
This notice must appear in all copies and this copyright
permission notice must appear in supporting documentation.
Visual Mining Inc. disclaims all warranties with regard to this software,
including all implied warranties of merchantability and fitness.
In no event shall Visual Mining Inc. be liable for any special, indirect
or consequential damages or any damages whatsoever resulting from
loss of use, data or profits, whether in an action of contract,
negligence or other tortuous action, arising out of or in
connection with the use or performance of this software.

' The purpose of this PHP example is to demonstrate extracting
' data from a flat file data source and populating a NetCharts
' chart with this data. The basic order of events is as follows:
' - Open the file
' - Read file line by line, and parse the data into
' their respective variables
' - Close the connection to the file
' - Instantiate the applet and pass the variables in through
' the NFParamScript parameter.
*/
// assign filename here. this file needs to be placed in the same
// subdirectory as getSalesDataChartFF.php. otherwise, you will
// need to modify $filename to reflect the path of the data file
// on the host machine.
$filename = "regionalsales.dat";

// open file; if not open, will return 'false' and quit.
if (!$file=fopen($filename, "r"))
{
echo ("Could not open file: $filename");
}
else
{
$count = 0;

// reading first line to flush it from system.
$text = (fgets ($file,45));

// looping through file, line by line, to extract data.
// - column1 = label
// - column2 = dataset1 (quarter1)
// - column3 = dataset2 (quarter2)
// - column4 = dataset3 (quarter3)
// - column5 = dataset4 (quarter4)
while ($text = (fgets ($file,45)))
{
// use split(..) to tokenize the string.
$dataArray = split (",", $text);

// first row, assign directly to variable
if ($count == 0)
{
$labels = $dataArray[0];
$ds1 = $dataArray[1];
$ds2 = $dataArray[2];
$ds3 = $dataArray[3];
$ds4 = $dataArray[4];
}
// second+ time, append to variable, with comma
else
{
$labels = $labels . "," . $dataArray[0];
$ds1 = $ds1 . "," . $dataArray[1];
$ds2 = $ds2 . "," . $dataArray[2];
$ds3 = $ds3 . "," . $dataArray[3];
$ds4 = $ds4 . "," . $dataArray[4];
}
$count++;
}

// close the file.
fclose($file);
}

 

?>

<!--
Note: The "code=" attribute of the applet is pointing to the
netcharts4.apps.* package. This is done to avoid any classpath
conflicts that may occur on the system running NetCharts. If,
for instance, an older version of NetCharts is installed on the
system, and the CLASSPATH environment variable is pointing to
that package, then a conflict could occur that might keep this
example from running. By pointing specifically to the
netcharts4.apps.* package, no conflict will occur. Note that a
change will need to be made to the "code=" attribute in all of
the applet tags with every major new version upgrade of NetCharts.
(NetCharts 5.0, 6.0, etc.)
If this potential classpath conflict is not a concern, then set
"code=netcharts.apps.*". This will allow the applets to run
across multiple versions of NetCharts, without any changes.
-->
<applet name=Quarterly Sales
code=netcharts4.apps.NFBarchartApp
codebase=/classes
archive=netcharts4.jar
width=600 height=400>
<param name=NFParamScript value='
#Populate the chart with all of the static template information;
ChartName = "Basic Grouped Barchart";
DebugSet = ALL;
ChartWidth = 600;
ChartHeight = 400;
Background = (white,NONE,3,null,TILE,black);
BottomTics = ("ON",black,"Helvetica",10,0,null);
DataSets = ("Quarter1",null,BAR,4,FILLED),
("Quarter2",null,BAR,4,FILLED),
("Quarter3",null,BAR,4,FILLED),
("Quarter4",null,BAR,4,FILLED);
DwellLabel = ("",black,"Courier",12,0);
GraphType = GROUP;
TopAxisTitle = ("Regional Sales by Quarter",black,"Helvetica",12,0);
HeaderBox = (null,NONE,2,null,TILE,black);
LeftTics = ("ON",black,"Helvetica",10,0,null);
BarWidth = 61;
Bar3DDepth = -1;
DataAxis = (BOTTOM,LEFT),(BOTTOM,LEFT);
Grid = (lightgray,null,black,null,TILE);
DwellLabelBox = (yellow,RAISED,3,null,TILE,black);
Legend = ("Legend",black,"Helvetica",10,0);
LegendAxis = (BOTTOM,LEFT);
LegendLayout = (VERTICAL,RIGHT,0,0,TOPLEFT,-1);
LegendBox = (null,NONE,1,null,TILE,black);
ColorTable = x6c5d94,x999966,x315394,x213321,x00566f,x690931,x515f23;
LeftColor = black;
GridAxis = (BOTTOM,LEFT);
GridLine = (HORIZONTAL,SOLID,1);
BottomColor = black;
BarBorder = (NONE,1,black);
AntiAlias = "ON";
StackLabel = ITEM;
BottomTicLayout = (AUTO,0,1);
BottomAxisTitle = ("Region",black,"Helvetica",12,0);
DwellLabel = ("ON", navy, "Helvetica", 10, 0);
DwellLabelBox = (lightgrey, RAISED, 2);

#Now populate the chart with the dynamic data extracted from the flat file;
DataSet1 = <?php echo($ds1);?>;
DataSet2 = <?php echo($ds2);?>;
DataSet3 = <?php echo($ds3);?>;
DataSet4 = <?php echo($ds4);?>;
BarLabels = <?php echo($labels);?>;
'>
</applet>

</body>
</html>