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<?php
/*
pDraw - class to manipulate data arrays
Version : 2.1.3
Made by : Jean-Damien POGOLOTTI
Last Update : 09/09/11
This file can be distributed under the license you can find at :
http://www.pchart.net/license
You can find the whole class documentation on the pChart web site.
*/
/* Axis configuration */
define("AXIS_FORMAT_DEFAULT" , 680001);
define("AXIS_FORMAT_TIME" , 680002);
define("AXIS_FORMAT_DATE" , 680003);
define("AXIS_FORMAT_METRIC" , 680004);
define("AXIS_FORMAT_CURRENCY" , 680005);
define("AXIS_FORMAT_CUSTOM" , 680006);
/* Axis position */
define("AXIS_POSITION_LEFT" , 681001);
define("AXIS_POSITION_RIGHT" , 681002);
define("AXIS_POSITION_TOP" , 681001);
define("AXIS_POSITION_BOTTOM" , 681002);
/* Families of data points */
define("SERIE_SHAPE_FILLEDCIRCLE" , 681011);
define("SERIE_SHAPE_FILLEDTRIANGLE" , 681012);
define("SERIE_SHAPE_FILLEDSQUARE" , 681013);
define("SERIE_SHAPE_FILLEDDIAMOND" , 681017);
define("SERIE_SHAPE_CIRCLE" , 681014);
define("SERIE_SHAPE_TRIANGLE" , 681015);
define("SERIE_SHAPE_SQUARE" , 681016);
define("SERIE_SHAPE_DIAMOND" , 681018);
/* Axis position */
define("AXIS_X" , 682001);
define("AXIS_Y" , 682002);
/* Define value limits */
define("ABSOLUTE_MIN" , -10000000000000);
define("ABSOLUTE_MAX" , 10000000000000);
/* Replacement to the PHP NULL keyword */
define("VOID" , 0.123456789);
/* Euro symbol for GD fonts */
define("EURO_SYMBOL" , utf8_encode("&#8364;"));
/* pData class definition */
class pData
{
var $Data;
var $Palette = array("0"=>array("R"=>188,"G"=>224,"B"=>46,"Alpha"=>100),
"1"=>array("R"=>224,"G"=>100,"B"=>46,"Alpha"=>100),
"2"=>array("R"=>224,"G"=>214,"B"=>46,"Alpha"=>100),
"3"=>array("R"=>46,"G"=>151,"B"=>224,"Alpha"=>100),
"4"=>array("R"=>176,"G"=>46,"B"=>224,"Alpha"=>100),
"5"=>array("R"=>224,"G"=>46,"B"=>117,"Alpha"=>100),
"6"=>array("R"=>92,"G"=>224,"B"=>46,"Alpha"=>100),
"7"=>array("R"=>224,"G"=>176,"B"=>46,"Alpha"=>100));
/* Class creator */
function pData()
{
$this->Data = "";
$this->Data["XAxisDisplay"] = AXIS_FORMAT_DEFAULT;
$this->Data["XAxisFormat"] = NULL;
$this->Data["XAxisName"] = NULL;
$this->Data["XAxisUnit"] = NULL;
$this->Data["Abscissa"] = NULL;
$this->Data["AbsicssaPosition"] = AXIS_POSITION_BOTTOM;
$this->Data["Axis"][0]["Display"] = AXIS_FORMAT_DEFAULT;
$this->Data["Axis"][0]["Position"] = AXIS_POSITION_LEFT;
$this->Data["Axis"][0]["Identity"] = AXIS_Y;
}
/* Add a single point or an array to the given serie */
function addPoints($Values,$SerieName="Serie1")
{
if (!isset($this->Data["Series"][$SerieName]))
$this->initialise($SerieName);
if ( is_array($Values) )
{
foreach($Values as $Key => $Value)
{ $this->Data["Series"][$SerieName]["Data"][] = $Value; }
}
else
$this->Data["Series"][$SerieName]["Data"][] = $Values;
if ( $Values != VOID )
{
$StrippedData = $this->stripVOID($this->Data["Series"][$SerieName]["Data"]);
if ( empty($StrippedData) ) { $this->Data["Series"][$SerieName]["Max"] = 0; $this->Data["Series"][$SerieName]["Min"] =0; return(0); }
$this->Data["Series"][$SerieName]["Max"] = max($StrippedData);
$this->Data["Series"][$SerieName]["Min"] = min($StrippedData);
}
}
/* Strip VOID values */
function stripVOID($Values)
{ if (!is_array($Values)) { return(array()); } $Result = array(); foreach($Values as $Key => $Value) { if ( $Value != VOID ) { $Result[] = $Value; } } return($Result); }
/* Return the number of values contained in a given serie */
function getSerieCount($Serie)
{ if (isset($this->Data["Series"][$Serie]["Data"])) { return(sizeof($this->Data["Series"][$Serie]["Data"])); } else { return(0); } }
/* Remove a serie from the pData object */
function removeSerie($Series)
{
if ( !is_array($Series) ) { $Series = $this->convertToArray($Series); }
foreach($Series as $Key => $Serie) { if (isset($this->Data["Series"][$Serie])) { unset($this->Data["Series"][$Serie]); } }
}
/* Return a value from given serie & index */
function getValueAt($Serie,$Index=0)
{ if (isset($this->Data["Series"][$Serie]["Data"][$Index])) { return($this->Data["Series"][$Serie]["Data"][$Index]); } else { return(NULL); } }
/* Return the values array */
function getValues($Serie)
{ if (isset($this->Data["Series"][$Serie]["Data"])) { return($this->Data["Series"][$Serie]["Data"]); } else { return(NULL); } }
/* Reverse the values in the given serie */
function reverseSerie($Series)
{
if ( !is_array($Series) ) { $Series = $this->convertToArray($Series); }
foreach($Series as $Key => $Serie) { if (isset($this->Data["Series"][$Serie]["Data"])) { $this->Data["Series"][$Serie]["Data"] = array_reverse($this->Data["Series"][$Serie]["Data"]); } }
}
/* Return the sum of the serie values */
function getSum($Serie)
{ if (isset($this->Data["Series"][$Serie])) { return(array_sum($this->Data["Series"][$Serie]["Data"])); } else { return(NULL); } }
/* Return the max value of a given serie */
function getMax($Serie)
{ if (isset($this->Data["Series"][$Serie]["Max"])) { return($this->Data["Series"][$Serie]["Max"]); } else { return(NULL); } }
/* Return the min value of a given serie */
function getMin($Serie)
{ if (isset($this->Data["Series"][$Serie]["Min"])) { return($this->Data["Series"][$Serie]["Min"]); } else { return(NULL); } }
/* Set the description of a given serie */
function setSerieShape($Series,$Shape=SERIE_SHAPE_FILLEDCIRCLE)
{
if ( !is_array($Series) ) { $Series = $this->convertToArray($Series); }
foreach($Series as $Key => $Serie) { if (isset($this->Data["Series"][$Serie]) ) { $this->Data["Series"][$Serie]["Shape"] = $Shape; } }
}
/* Set the description of a given serie */
function setSerieDescription($Series,$Description="My serie")
{
if ( !is_array($Series) ) { $Series = $this->convertToArray($Series); }
foreach($Series as $Key => $Serie) { if (isset($this->Data["Series"][$Serie]) ) { $this->Data["Series"][$Serie]["Description"] = $Description; } }
}
/* Set a serie as "drawable" while calling a rendering function */
function setSerieDrawable($Series,$Drawable=TRUE)
{
if ( !is_array($Series) ) { $Series = $this->convertToArray($Series); }
foreach($Series as $Key => $Serie) { if (isset($this->Data["Series"][$Serie]) ) { $this->Data["Series"][$Serie]["isDrawable"] = $Drawable; } }
}
/* Set the icon associated to a given serie */
function setSeriePicture($Series,$Picture=NULL)
{
if ( !is_array($Series) ) { $Series = $this->convertToArray($Series); }
foreach($Series as $Key => $Serie) { if (isset($this->Data["Series"][$Serie]) ) { $this->Data["Series"][$Serie]["Picture"] = $Picture; } }
}
/* Set the name of the X Axis */
function setXAxisName($Name)
{ $this->Data["XAxisName"] = $Name; }
/* Set the display mode of the X Axis */
function setXAxisDisplay($Mode,$Format=NULL)
{ $this->Data["XAxisDisplay"] = $Mode; $this->Data["XAxisFormat"] = $Format; }
/* Set the unit that will be displayed on the X axis */
function setXAxisUnit($Unit)
{ $this->Data["XAxisUnit"] = $Unit; }
/* Set the serie that will be used as abscissa */
function setAbscissa($Serie)
{ if (isset($this->Data["Series"][$Serie])) { $this->Data["Abscissa"] = $Serie; } }
function setAbsicssaPosition($Position = AXIS_POSITION_BOTTOM)
{ $this->Data["AbsicssaPosition"] = $Position; }
/* Set the name of the abscissa axis */
function setAbscissaName($Name)
{ $this->Data["AbscissaName"] = $Name; }
/* Create a scatter group specifyin X and Y data series */
function setScatterSerie($SerieX,$SerieY,$ID=0)
{ if (isset($this->Data["Series"][$SerieX]) && isset($this->Data["Series"][$SerieY]) ) { $this->initScatterSerie($ID); $this->Data["ScatterSeries"][$ID]["X"] = $SerieX; $this->Data["ScatterSeries"][$ID]["Y"] = $SerieY; } }
/* Set the shape of a given sctatter serie */
function setScatterSerieShape($ID,$Shape=SERIE_SHAPE_FILLEDCIRCLE)
{ if (isset($this->Data["ScatterSeries"][$ID]) ) { $this->Data["ScatterSeries"][$ID]["Shape"] = $Shape; } }
/* Set the description of a given scatter serie */
function setScatterSerieDescription($ID,$Description="My serie")
{ if (isset($this->Data["ScatterSeries"][$ID]) ) { $this->Data["ScatterSeries"][$ID]["Description"] = $Description; } }
/* Set the icon associated to a given scatter serie */
function setScatterSeriePicture($ID,$Picture=NULL)
{ if (isset($this->Data["ScatterSeries"][$ID]) ) { $this->Data["ScatterSeries"][$ID]["Picture"] = $Picture; } }
/* Set a scatter serie as "drawable" while calling a rendering function */
function setScatterSerieDrawable($ID ,$Drawable=TRUE)
{ if (isset($this->Data["ScatterSeries"][$ID]) ) { $this->Data["ScatterSeries"][$ID]["isDrawable"] = $Drawable; } }
/* Define if a scatter serie should be draw with ticks */
function setScatterSerieTicks($ID,$Width=0)
{ if ( isset($this->Data["ScatterSeries"][$ID]) ) { $this->Data["ScatterSeries"][$ID]["Ticks"] = $Width; } }
/* Define if a scatter serie should be draw with a special weight */
function setScatterSerieWeight($ID,$Weight=0)
{ if ( isset($this->Data["ScatterSeries"][$ID]) ) { $this->Data["ScatterSeries"][$ID]["Weight"] = $Weight; } }
/* Associate a color to a scatter serie */
function setScatterSerieColor($ID,$Format)
{
$R = isset($Format["R"]) ? $Format["R"] : 0;
$G = isset($Format["G"]) ? $Format["G"] : 0;
$B = isset($Format["B"]) ? $Format["B"] : 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
if ( isset($this->Data["ScatterSeries"][$ID]) )
{
$this->Data["ScatterSeries"][$ID]["Color"]["R"] = $R;
$this->Data["ScatterSeries"][$ID]["Color"]["G"] = $G;
$this->Data["ScatterSeries"][$ID]["Color"]["B"] = $B;
$this->Data["ScatterSeries"][$ID]["Color"]["Alpha"] = $Alpha;
}
}
/* Compute the series limits for an individual and global point of view */
function limits()
{
$GlobalMin = ABSOLUTE_MAX;
$GlobalMax = ABSOLUTE_MIN;
foreach($this->Data["Series"] as $Key => $Value)
{
if ( $this->Data["Abscissa"] != $Key && $this->Data["Series"][$Key]["isDrawable"] == TRUE)
{
if ( $GlobalMin > $this->Data["Series"][$Key]["Min"] ) { $GlobalMin = $this->Data["Series"][$Key]["Min"]; }
if ( $GlobalMax < $this->Data["Series"][$Key]["Max"] ) { $GlobalMax = $this->Data["Series"][$Key]["Max"]; }
}
}
$this->Data["Min"] = $GlobalMin;
$this->Data["Max"] = $GlobalMax;
return(array($GlobalMin,$GlobalMax));
}
/* Mark all series as drawable */
function drawAll()
{ foreach($this->Data["Series"] as $Key => $Value) { if ( $this->Data["Abscissa"] != $Key ) { $this->Data["Series"][$Key]["isDrawable"]=TRUE; } } }
/* Return the average value of the given serie */
function getSerieAverage($Serie)
{
if ( isset($this->Data["Series"][$Serie]) )
{
$SerieData = $this->stripVOID($this->Data["Series"][$Serie]["Data"]);
return(array_sum($SerieData)/sizeof($SerieData));
}
else
return(NULL);
}
/* Return the geometric mean of the given serie */
function getGeometricMean($Serie)
{
if ( isset($this->Data["Series"][$Serie]) )
{
$SerieData = $this->stripVOID($this->Data["Series"][$Serie]["Data"]);
$Seriesum = 1; foreach($SerieData as $Key => $Value) { $Seriesum = $Seriesum * $Value; }
return(pow($Seriesum,1/sizeof($SerieData)));
}
else
return(NULL);
}
/* Return the harmonic mean of the given serie */
function getHarmonicMean($Serie)
{
if ( isset($this->Data["Series"][$Serie]) )
{
$SerieData = $this->stripVOID($this->Data["Series"][$Serie]["Data"]);
$Seriesum = 0; foreach($SerieData as $Key => $Value) { $Seriesum = $Seriesum + 1/$Value; }
return(sizeof($SerieData)/$Seriesum);
}
else
return(NULL);
}
/* Return the standard deviation of the given serie */
function getStandardDeviation($Serie)
{
if ( isset($this->Data["Series"][$Serie]) )
{
$Average = $this->getSerieAverage($Serie);
$SerieData = $this->stripVOID($this->Data["Series"][$Serie]["Data"]);
$DeviationSum = 0;
foreach($SerieData as $Key => $Value)
$DeviationSum = $DeviationSum + ($Value-$Average)*($Value-$Average);
$Deviation = sqrt($DeviationSum/count($SerieData));
return($Deviation);
}
else
return(NULL);
}
/* Return the Coefficient of variation of the given serie */
function getCoefficientOfVariation($Serie)
{
if ( isset($this->Data["Series"][$Serie]) )
{
$Average = $this->getSerieAverage($Serie);
$StandardDeviation = $this->getStandardDeviation($Serie);
if ( $StandardDeviation != 0 )
return($StandardDeviation/$Average);
else
return(NULL);
}
else
return(NULL);
}
/* Return the median value of the given serie */
function getSerieMedian($Serie)
{
if ( isset($this->Data["Series"][$Serie]) )
{
$SerieData = $this->stripVOID($this->Data["Series"][$Serie]["Data"]);
sort($SerieData);
$SerieCenter = floor(sizeof($SerieData)/2);
if ( isset($SerieData[$SerieCenter]) )
return($SerieData[$SerieCenter]);
else
return(NULL);
}
else
return(NULL);
}
/* Return the x th percentil of the given serie */
function getSeriePercentile($Serie="Serie1",$Percentil=95)
{
if (!isset($this->Data["Series"][$Serie]["Data"])) { return(NULL); }
$Values = count($this->Data["Series"][$Serie]["Data"])-1;
if ( $Values < 0 ) { $Values = 0; }
$PercentilID = floor(($Values/100)*$Percentil+.5);
$SortedValues = $this->Data["Series"][$Serie]["Data"];
sort($SortedValues);
if ( is_numeric($SortedValues[$PercentilID]) )
return($SortedValues[$PercentilID]);
else
return(NULL);
}
/* Add random values to a given serie */
function addRandomValues($SerieName="Serie1",$Options="")
{
$Values = isset($Options["Values"]) ? $Options["Values"] : 20;
$Min = isset($Options["Min"]) ? $Options["Min"] : 0;
$Max = isset($Options["Max"]) ? $Options["Max"] : 100;
$withFloat = isset($Options["withFloat"]) ? $Options["withFloat"] : FALSE;
for ($i=0;$i<=$Values;$i++)
{
if ( $withFloat ) { $Value = rand($Min*100,$Max*100)/100; } else { $Value = rand($Min,$Max); }
$this->addPoints($Value,$SerieName);
}
}
/* Test if we have valid data */
function containsData()
{
if (!isset($this->Data["Series"])) { return(FALSE); }
$Result = FALSE;
foreach($this->Data["Series"] as $Key => $Value)
{ if ( $this->Data["Abscissa"] != $Key && $this->Data["Series"][$Key]["isDrawable"]==TRUE) { $Result=TRUE; } }
return($Result);
}
/* Set the display mode of an Axis */
function setAxisDisplay($AxisID,$Mode=AXIS_FORMAT_DEFAULT,$Format=NULL)
{
if ( isset($this->Data["Axis"][$AxisID] ) )
{
$this->Data["Axis"][$AxisID]["Display"] = $Mode;
if ( $Format != NULL ) { $this->Data["Axis"][$AxisID]["Format"] = $Format; }
}
}
/* Set the position of an Axis */
function setAxisPosition($AxisID,$Position=AXIS_POSITION_LEFT)
{ if ( isset($this->Data["Axis"][$AxisID] ) ) { $this->Data["Axis"][$AxisID]["Position"] = $Position; } }
/* Associate an unit to an axis */
function setAxisUnit($AxisID,$Unit)
{ if ( isset($this->Data["Axis"][$AxisID] ) ) { $this->Data["Axis"][$AxisID]["Unit"] = $Unit; } }
/* Associate a name to an axis */
function setAxisName($AxisID,$Name)
{ if ( isset($this->Data["Axis"][$AxisID] ) ) { $this->Data["Axis"][$AxisID]["Name"] = $Name; } }
/* Associate a color to an axis */
function setAxisColor($AxisID,$Format)
{
$R = isset($Format["R"]) ? $Format["R"] : 0;
$G = isset($Format["G"]) ? $Format["G"] : 0;
$B = isset($Format["B"]) ? $Format["B"] : 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
if ( isset($this->Data["Axis"][$AxisID] ) )
{
$this->Data["Axis"][$AxisID]["Color"]["R"] = $R;
$this->Data["Axis"][$AxisID]["Color"]["G"] = $G;
$this->Data["Axis"][$AxisID]["Color"]["B"] = $B;
$this->Data["Axis"][$AxisID]["Color"]["Alpha"] = $Alpha;
}
}
/* Design an axis as X or Y member */
function setAxisXY($AxisID,$Identity=AXIS_Y)
{ if ( isset($this->Data["Axis"][$AxisID] ) ) { $this->Data["Axis"][$AxisID]["Identity"] = $Identity; } }
/* Associate one data serie with one axis */
function setSerieOnAxis($Series,$AxisID)
{
if ( !is_array($Series) ) { $Series = $this->convertToArray($Series); }
foreach($Series as $Key => $Serie)
{
$PreviousAxis = $this->Data["Series"][$Serie]["Axis"];
/* Create missing axis */
if ( !isset($this->Data["Axis"][$AxisID] ) )
{ $this->Data["Axis"][$AxisID]["Position"] = AXIS_POSITION_LEFT; $this->Data["Axis"][$AxisID]["Identity"] = AXIS_Y;}
$this->Data["Series"][$Serie]["Axis"] = $AxisID;
/* Cleanup unused axis */
$Found = FALSE;
foreach($this->Data["Series"] as $SerieName => $Values) { if ( $Values["Axis"] == $PreviousAxis ) { $Found = TRUE; } }
if (!$Found) { unset($this->Data["Axis"][$PreviousAxis]); }
}
}
/* Define if a serie should be draw with ticks */
function setSerieTicks($Series,$Width=0)
{
if ( !is_array($Series) ) { $Series = $this->convertToArray($Series); }
foreach($Series as $Key => $Serie) { if ( isset($this->Data["Series"][$Serie]) ) { $this->Data["Series"][$Serie]["Ticks"] = $Width; } }
}
/* Define if a serie should be draw with a special weight */
function setSerieWeight($Series,$Weight=0)
{
if ( !is_array($Series) ) { $Series = $this->convertToArray($Series); }
foreach($Series as $Key => $Serie) { if ( isset($this->Data["Series"][$Serie]) ) { $this->Data["Series"][$Serie]["Weight"] = $Weight; } }
}
/* Returns the palette of the given serie */
function getSeriePalette($Serie)
{
if ( !isset($this->Data["Series"][$Serie]) ) { return(NULL); }
$Result = "";
$Result["R"] = $this->Data["Series"][$Serie]["Color"]["R"];
$Result["G"] = $this->Data["Series"][$Serie]["Color"]["G"];
$Result["B"] = $this->Data["Series"][$Serie]["Color"]["B"];
$Result["Alpha"] = $this->Data["Series"][$Serie]["Color"]["Alpha"];
return($Result);
}
/* Set the color of one serie */
function setPalette($Series,$Format=NULL)
{
if ( !is_array($Series) ) { $Series = $this->convertToArray($Series); }
foreach($Series as $Key => $Serie)
{
$R = isset($Format["R"]) ? $Format["R"] : 0;
$G = isset($Format["G"]) ? $Format["G"] : 0;
$B = isset($Format["B"]) ? $Format["B"] : 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
if ( isset($this->Data["Series"][$Serie]) )
{
$OldR = $this->Data["Series"][$Serie]["Color"]["R"]; $OldG = $this->Data["Series"][$Serie]["Color"]["G"]; $OldB = $this->Data["Series"][$Serie]["Color"]["B"];
$this->Data["Series"][$Serie]["Color"]["R"] = $R;
$this->Data["Series"][$Serie]["Color"]["G"] = $G;
$this->Data["Series"][$Serie]["Color"]["B"] = $B;
$this->Data["Series"][$Serie]["Color"]["Alpha"] = $Alpha;
/* Do reverse processing on the internal palette array */
foreach ($this->Palette as $Key => $Value)
{ if ($Value["R"] == $OldR && $Value["G"] == $OldG && $Value["B"] == $OldB) { $this->Palette[$Key]["R"] = $R; $this->Palette[$Key]["G"] = $G; $this->Palette[$Key]["B"] = $B; $this->Palette[$Key]["Alpha"] = $Alpha;} }
}
}
}
/* Load a palette file */
function loadPalette($FileName,$Overwrite=FALSE)
{
if ( !file_exists($FileName) ) { return(-1); }
if ( $Overwrite ) { $this->Palette = ""; }
$fileHandle = @fopen($FileName, "r");
if (!$fileHandle) { return(-1); }
while (!feof($fileHandle))
{
$buffer = fgets($fileHandle, 4096);
if ( preg_match("/,/",$buffer) )
{
list($R,$G,$B,$Alpha) = preg_split("/,/",$buffer);
if ( $this->Palette == "" ) { $ID = 0; } else { $ID = count($this->Palette); }
$this->Palette[$ID] = array("R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha);
}
}
fclose($fileHandle);
/* Apply changes to current series */
$ID = 0;
if ( isset($this->Data["Series"]))
{
foreach($this->Data["Series"] as $Key => $Value)
{
if ( !isset($this->Palette[$ID]) )
$this->Data["Series"][$Key]["Color"] = array("R"=>0,"G"=>0,"B"=>0,"Alpha"=>0);
else
$this->Data["Series"][$Key]["Color"] = $this->Palette[$ID];
$ID++;
}
}
}
/* Initialise a given scatter serie */
function initScatterSerie($ID)
{
if ( isset($this->Data["ScatterSeries"][$ID]) ) { return(0); }
$this->Data["ScatterSeries"][$ID]["Description"] = "Scatter ".$ID;
$this->Data["ScatterSeries"][$ID]["isDrawable"] = TRUE;
$this->Data["ScatterSeries"][$ID]["Picture"] = NULL;
$this->Data["ScatterSeries"][$ID]["Ticks"] = 0;
$this->Data["ScatterSeries"][$ID]["Weight"] = 0;
if ( isset($this->Palette[$ID]) )
$this->Data["ScatterSeries"][$ID]["Color"] = $this->Palette[$ID];
else
{
$this->Data["ScatterSeries"][$ID]["Color"]["R"] = rand(0,255);
$this->Data["ScatterSeries"][$ID]["Color"]["G"] = rand(0,255);
$this->Data["ScatterSeries"][$ID]["Color"]["B"] = rand(0,255);
$this->Data["ScatterSeries"][$ID]["Color"]["Alpha"] = 100;
}
}
/* Initialise a given serie */
function initialise($Serie)
{
if ( isset($this->Data["Series"]) ) { $ID = count($this->Data["Series"]); } else { $ID = 0; }
$this->Data["Series"][$Serie]["Description"] = $Serie;
$this->Data["Series"][$Serie]["isDrawable"] = TRUE;
$this->Data["Series"][$Serie]["Picture"] = NULL;
$this->Data["Series"][$Serie]["Max"] = NULL;
$this->Data["Series"][$Serie]["Min"] = NULL;
$this->Data["Series"][$Serie]["Axis"] = 0;
$this->Data["Series"][$Serie]["Ticks"] = 0;
$this->Data["Series"][$Serie]["Weight"] = 0;
$this->Data["Series"][$Serie]["Shape"] = SERIE_SHAPE_FILLEDCIRCLE;
if ( isset($this->Palette[$ID]) )
$this->Data["Series"][$Serie]["Color"] = $this->Palette[$ID];
else
{
$this->Data["Series"][$Serie]["Color"]["R"] = rand(0,255);
$this->Data["Series"][$Serie]["Color"]["G"] = rand(0,255);
$this->Data["Series"][$Serie]["Color"]["B"] = rand(0,255);
$this->Data["Series"][$Serie]["Color"]["Alpha"] = 100;
}
}
function normalize($NormalizationFactor=100,$UnitChange=NULL,$Round=1)
{
$Abscissa = $this->Data["Abscissa"];
$SelectedSeries = "";
$MaxVal = 0;
foreach($this->Data["Axis"] as $AxisID => $Axis)
{
if ( $UnitChange != NULL ) { $this->Data["Axis"][$AxisID]["Unit"] = $UnitChange; }
foreach($this->Data["Series"] as $SerieName => $Serie)
{
if ($Serie["Axis"] == $AxisID && $Serie["isDrawable"] == TRUE && $SerieName != $Abscissa)
{
$SelectedSeries[$SerieName] = $SerieName;
if ( count($Serie["Data"] ) > $MaxVal ) { $MaxVal = count($Serie["Data"]); }
}
}
}
for($i=0;$i<=$MaxVal-1;$i++)
{
$Factor = 0;
foreach ($SelectedSeries as $Key => $SerieName )
{
$Value = $this->Data["Series"][$SerieName]["Data"][$i];
if ( $Value != VOID )
$Factor = $Factor + abs($Value);
}
if ( $Factor != 0 )
{
$Factor = $NormalizationFactor / $Factor;
foreach ($SelectedSeries as $Key => $SerieName )
{
$Value = $this->Data["Series"][$SerieName]["Data"][$i];
if ( $Value != VOID && $Factor != $NormalizationFactor )
$this->Data["Series"][$SerieName]["Data"][$i] = round(abs($Value)*$Factor,$Round);
elseif ( $Value == VOID || $Value == 0 )
$this->Data["Series"][$SerieName]["Data"][$i] = VOID;
elseif ( $Factor == $NormalizationFactor )
$this->Data["Series"][$SerieName]["Data"][$i] = $NormalizationFactor;
}
}
}
foreach ($SelectedSeries as $Key => $SerieName )
{
$this->Data["Series"][$SerieName]["Max"] = max($this->stripVOID($this->Data["Series"][$SerieName]["Data"]));
$this->Data["Series"][$SerieName]["Min"] = min($this->stripVOID($this->Data["Series"][$SerieName]["Data"]));
}
}
/* Load data from a CSV (or similar) data source */
function importFromCSV($FileName,$Options="")
{
$Delimiter = isset($Options["Delimiter"]) ? $Options["Delimiter"] : ",";
$GotHeader = isset($Options["GotHeader"]) ? $Options["GotHeader"] : FALSE;
$SkipColumns = isset($Options["SkipColumns"]) ? $Options["SkipColumns"] : array(-1);
$DefaultSerieName = isset($Options["DefaultSerieName"]) ? $Options["DefaultSerieName"] : "Serie";
$Handle = @fopen($FileName,"r");
if ($Handle)
{
$HeaderParsed = FALSE; $SerieNames = "";
while (!feof($Handle))
{
$Buffer = fgets($Handle, 4096);
$Buffer = str_replace(chr(10),"",$Buffer);
$Buffer = str_replace(chr(13),"",$Buffer);
$Values = preg_split("/".$Delimiter."/",$Buffer);
if ( $Buffer != "" )
{
if ( $GotHeader && !$HeaderParsed )
{
foreach($Values as $Key => $Name) { if ( !in_array($Key,$SkipColumns) ) { $SerieNames[$Key] = $Name; } }
$HeaderParsed = TRUE;
}
else
{
if ($SerieNames == "" ) { foreach($Values as $Key => $Name) { if ( !in_array($Key,$SkipColumns) ) { $SerieNames[$Key] = $DefaultSerieName.$Key; } } }
foreach($Values as $Key => $Value) { if ( !in_array($Key,$SkipColumns) ) { $this->addPoints($Value,$SerieNames[$Key]); } }
}
}
}
fclose($Handle);
}
}
/* Create a dataset based on a formula */
/* COMMENTED BY PIWIK to avoid eval()
function createFunctionSerie($SerieName,$Formula="",$Options="")
{
$MinX = isset($Options["MinX"]) ? $Options["MinX"] : -10;
$MaxX = isset($Options["MaxX"]) ? $Options["MaxX"] : 10;
$XStep = isset($Options["XStep"]) ? $Options["XStep"] : 1;
$AutoDescription = isset($Options["AutoDescription"]) ? $Options["AutoDescription"] : FALSE;
$RecordAbscissa = isset($Options["RecordAbscissa"]) ? $Options["RecordAbscissa"] : FALSE;
$AbscissaSerie = isset($Options["AbscissaSerie"]) ? $Options["AbscissaSerie"] : "Abscissa";
if ( $Formula == "" ) { return(0); }
$Result = ""; $Abscissa = "";
for($i=$MinX; $i<=$MaxX; $i=$i+$XStep)
{
$Expression = "\$return = '!'.(".str_replace("z",$i,$Formula).");";
if ( @eval($Expression) === FALSE ) { $return = VOID; }
if ( $return == "!" ) { $return = VOID; } else { $return = $this->right($return,strlen($return)-1); }
if ( $return == "NAN" ) { $return = VOID; }
if ( $return == "INF" ) { $return = VOID; }
if ( $return == "-INF" ) { $return = VOID; }
$Abscissa[] = $i;
$Result[] = $return;
}
$this->addPoints($Result,$SerieName);
if ( $AutoDescription ) { $this->setSerieDescription($SerieName,$Formula); }
if ( $RecordAbscissa ) { $this->addPoints($Abscissa,$AbscissaSerie); }
}*/
function negateValues($Series)
{
if ( !is_array($Series) ) { $Series = $this->convertToArray($Series); }
foreach($Series as $Key => $SerieName)
{
if (isset($this->Data["Series"][$SerieName]))
{
$Data = "";
foreach($this->Data["Series"][$SerieName]["Data"] as $Key => $Value)
{ if ( $Value == VOID ) { $Data[] = VOID; } else { $Data[] = -$Value; } }
$this->Data["Series"][$SerieName]["Data"] = $Data;
$this->Data["Series"][$SerieName]["Max"] = max($this->stripVOID($this->Data["Series"][$SerieName]["Data"]));
$this->Data["Series"][$SerieName]["Min"] = min($this->stripVOID($this->Data["Series"][$SerieName]["Data"]));
}
}
}
/* Return the data & configuration of the series */
function getData()
{ return($this->Data); }
/* Save a palette element */
function savePalette($ID,$Color)
{ $this->Palette[$ID] = $Color; }
/* Return the palette of the series */
function getPalette()
{ return($this->Palette); }
/* Called by the scaling algorithm to save the config */
function saveAxisConfig($Axis) { $this->Data["Axis"]=$Axis; }
/* Save the Y Margin if set */
function saveYMargin($Value) { $this->Data["YMargin"]=$Value; }
/* Save extended configuration to the pData object */
function saveExtendedData($Tag,$Values) { $this->Data["Extended"][$Tag]=$Values; }
/* Called by the scaling algorithm to save the orientation of the scale */
function saveOrientation($Orientation) { $this->Data["Orientation"]=$Orientation; }
/* Convert a string to a single elements array */
function convertToArray($Value)
{ $Values = ""; $Values[] = $Value; return($Values); }
/* Class string wrapper */
function __toString()
{ return("pData object."); }
function left($value,$NbChar) { return substr($value,0,$NbChar); }
function right($value,$NbChar) { return substr($value,strlen($value)-$NbChar,$NbChar); }
function mid($value,$Depart,$NbChar) { return substr($value,$Depart-1,$NbChar); }
}
?>