Stroke doesn't display graph

[Freddy]

Hi, if run myGraph.php, I see a whole bunch of garbage displayed in the browser. After reading some posts, I included myGraph.php in an image tag but the graph is not displayed. Please help! Thanks.

//image tag
//

// myGraph.php
<?php
// Standard inclusions
include('pData.php');
include('pChart.php');
include('pCache.php');

// Dataset definition
$DataSet = new pData;
$DataSet->AddPoint(array(1,4,3,2,3,3,2,1,0,7,4,3,2,3,3,5,1,0,7));
$DataSet->AddSerie();
$DataSet->SetSerieName("Sample data","Serie1");

// Cache definition 
$Cache = new pCache();
$Cache->GetFromCache("Graph1",$DataSet->GetData());

// Initialise the graph
$Test = new pChart(700,230);
$Test->setFontProperties("C:/wamp/www/pChart/tahoma.ttf",10);
$Test->setGraphArea(40,30,680,200);
$Test->drawGraphArea(252,252,252);

$Test->drawScale($DataSet->GetData(),$DataSet->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2);
$Test->drawGrid(4,TRUE,230,230,230,255);

// Draw the line graph
$Test->drawLineGraph($DataSet->GetData(),$DataSet->GetDataDescription());
$Test->drawPlotGraph($DataSet->GetData(),$DataSet->GetDataDescription(),3,2,255,255,255);

// Finish the graph
$Test->setFontProperties("C:/wamp/www/pChart/tahoma.ttf",8);
$Test->drawLegend(45,35,$DataSet->GetDataDescription(),255,255,255);
$Test->setFontProperties("C:/wamp/www/pChart/tahoma.ttf",10);
$Test->drawTitle(60,22,"My Sample Chart",50,50,50,585);

// Render the graph

$Cache->WriteToCache("Graph1",$DataSet->GetData(),$Test);
$Test->Stroke();

?>

[Jean-Damien POGOLOTTI]

Hi Freddy,

You have to remove all the characters before the <?php tag because of the
way PHP handle the sessions and the content-type head elements.

Next step is to get the beginning of the script output that should display
a PHP error message.

Garbled output is perfectly normal : this is the PNG elements that shouln't
be readable to human eyes.

Kind regards,
Jean-Damien

On Tue, Feb 18, 2014 at 6:58 AM, Freddy freddymac@users.sf.net wrote:

Hi, if run myGraph.php, I see a whole bunch of garbage displayed in the
browser. After reading some posts, I included myGraph.php in an image tag
but the graph is not displayed. Please help! Thanks.

//image tag
//[image: my Graph]

// myGraph.php
<?php
// Standard inclusions
include('pData.php');
include('pChart.php');
include('pCache.php');

// Dataset definition
$DataSet = new pData;
$DataSet->AddPoint(array(1,4,3,2,3,3,2,1,0,7,4,3,2,3,3,5,1,0,7));
$DataSet->AddSerie();
$DataSet->SetSerieName("Sample data","Serie1");

// Cache definition $Cache = new pCache();$Cache->GetFromCache("Graph1",$DataSet->GetData());

// Initialise the graph
$Test = new pChart(700,230);
$Test->setFontProperties("C:/wamp/www/pChart/tahoma.ttf",10);
$Test->setGraphArea(40,30,680,200);
$Test->drawGraphArea(252,252,252);

$Test->drawScale($DataSet->GetData(),$DataSet->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2);
$Test->drawGrid(4,TRUE,230,230,230,255);

// Draw the line graph
$Test->drawLineGraph($DataSet->GetData(),$DataSet->GetDataDescription());

$Test->drawPlotGraph($DataSet->GetData(),$DataSet->GetDataDescription(),3,2,255,255,255);

// Finish the graph
$Test->setFontProperties("C:/wamp/www/pChart/tahoma.ttf",8);
$Test->drawLegend(45,35,$DataSet->GetDataDescription(),255,255,255);
$Test->setFontProperties("C:/wamp/www/pChart/tahoma.ttf",10);
$Test->drawTitle(60,22,"My Sample Chart",50,50,50,585);

// Render the graph

$Cache->WriteToCache("Graph1",$DataSet->GetData(),$Test);
$Test->Stroke();

?>

Stroke doesn't display graphhttps://sourceforge.net/p/pchart/discussion/822590/thread/fed3583b/?limit=25#635f

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[Freddy]

Thanks Jean-Damien!