| Package home | Report new bug | New search | Development Roadmap | Status: Open | Feedback | All | Closed Since Version 0.8.0 |
| Bug #4333 | Legend division by zero error on PieChart | ||
|---|---|---|---|
| Submitted: | 2005-05-12 08:24 UTC | ||
| From: | attb2 at fw dot hu | Assigned: | nosey |
| Status: | Closed | Package: | Image_Graph |
| PHP Version: | 4.3.10 | OS: | Debian Sarge |
| Roadmaps: | (Not assigned) | ||
[2005-05-12 08:24 UTC] attb2 at fw dot hu
Description:
------------
If I want to display a Legend from a PieChart Image_Graph throws a
"division by zero" error.
I traced down this error:
/Graph/Plot.php
function _legendSample($x, $y, &$font) { Line: 719
[...]
$point = $this->_getMarkerData($point, $nextPoint, $prevPoint, $i);
[...]
}
In this method calling '$i' variable has no value! (Not initialized.)
Example is below. (Example is assembled from tutorial and
GraphPite site informations.)
Thanks
Attila Szuts
Reproduce code:
---------------
<?php
require_once("Image/Graph.php");
// -----------------------------------------------------------------------------
$startdate = date('Y-m-01');
$enddate = date('Y-m-d');
$month = date('Y-m');
$total_income = 541; // Income
$total_outcome = 19; // Outcome
// -----------------------------------------------------------------------------
// Graph.
$Graph =& new Image_Graph(400, 300);
// Font.
$Arial =& $Graph->addFont(new Image_Graph_Font_TTF("arial.ttf"));
$Arial->setSize(11);
// Cimke font
$ArialSolid =& $Graph->addFont(new Image_Graph_Font_TTF("arial.ttf"));
$ArialSolid->setSize(10);
$Graph->add(
new Image_Graph_Layout_Vertical(
new Image_Graph_Layout_Vertical(
new Image_Graph_Title(sprintf("Income / Outcome %s (Ft)", $month), $Arial),
$PlotArea = new Image_Graph_Plotarea(),
5
),
$Legend = new Image_Graph_Legend(), // Legend
70
)
);
$Graph->hideLogo();
$PlotArea->hideAxis();
// Legend
$Legend->setPlotArea($PlotArea);
//$Legend->setFillColor(IMAGE_GRAPH_WHITE);
//$Legend->setFont($ArialSolid);
// Adatok.
//$DataSet =& new Image_Graph_Dataset_Random(10, 2, 15, true);
$DataSet =& new Image_Graph_Dataset_Trivial();
$DataSet->addPoint('Income', $total_income);
$DataSet->addPoint('Outcome', $total_outcome);
$Plot =& $PlotArea->addPlot(new Image_Graph_Plot_Pie($DataSet));
// create a X data value marker
$Marker =& $Plot->add(new Image_Graph_Marker_Value(IMAGE_GRAPH_VALUE_X));
$Marker->setFont($ArialSolid);
// fill it with white
$Marker->setFillColor(IMAGE_GRAPH_WHITE);
// and use black border
$Marker->setBorderColor(IMAGE_GRAPH_BLACK);
// create a pin-point marker type
$PointingMarker =& $Plot->add(new Image_Graph_Marker_Pointing_Angular(30, $Marker));
// and use the marker on the plot
$Plot->setMarker($PointingMarker);
$Plot->Radius = 2;
$Plot->setLineColor(IMAGE_GRAPH_GRAY);
$GREEN =& $Graph->newColor(IMAGE_GRAPH_GREEN, 100);
$RED =& $Graph->newColor(IMAGE_GRAPH_RED, 100);
$FillArray =& new Image_Graph_Fill_Array();
$Plot->setFillStyle($FillArray);
$FillArray->add($GREEN);
$FillArray->add($RED);
$Graph->done();
// -----------------------------------------------------------------------------
?>
Expected result:
----------------
A nice Piechart with Legends.
If you comment out the
$Legend->setPlotArea($PlotArea);
line a piechart will be displayed. (without Legend)
Actual result:
--------------
Warning: Division by zero in /mnt/work/lotimex/web/Graphs/Image/Graph/Plot/Pie.php on line 63
Comments
[2005-05-17 21:15 UTC] pear dot nosey at veggerby dot dk
This bug has been fixed in CVS.
In case this was a documentation problem, the fix will show up at the
end of next Sunday (CET) on pear.php.net.
In case this was a pear.php.net website problem, the change will show
up on the website in short time.
Thank you for the report, and for helping us make PEAR better.