--- a/lib/pChart2.1.0/class/pData.class.php +++ b/lib/pChart2.1.0/class/pData.class.php @@ -1,1 +1,555 @@ - +<?php + /* + pDraw - class to manipulate data arrays + + Version : 2.1.0 + Made by : Jean-Damien POGOLOTTI + Last Update : 26/01/11 + + 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); + + /* Axis position */ + define("AXIS_POSITION_LEFT" , 681001); + define("AXIS_POSITION_RIGHT" , 681002); + define("AXIS_POSITION_TOP" , 681001); + define("AXIS_POSITION_BOTTOM" , 681002); + + /* 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" , 0.12345); + + /* 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["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 ) + { + $this->Data["Series"][$SerieName]["Max"] = max($this->stripVOID($this->Data["Series"][$SerieName]["Data"])); + $this->Data["Series"][$SerieName]["Min"] = min($this->stripVOID($this->Data["Series"][$SerieName]["Data"])); + } + } + + /* Strip VOID values */ + function stripVOID($Values) + { $Result = ""; foreach($Values as $Key => $Value) { if ( $Value != VOID ) { $Result[] = $Value; } } return($Result); } + + /* Return the number of values contained in a given serie */ + function getSerieCount($Serie=NULL) + { if (isset($this->Data["Series"][$Serie]["Data"])) { return(sizeof($this->Data["Series"][$Serie]["Data"])); } else { return(0); } } + + /* Remove a serie from the pData object */ + function removeSerie($Serie=NULL) + { 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($Serie=NULL) + { if (isset($this->Data["Series"][$Serie]["Data"])) { return($this->Data["Series"][$Serie]["Data"]); } else { return(NULL); } } + + /* Reverse the values in the given serie */ + function reverseSerie($Serie=NULL) + { 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"][$Serie]["Min"]); } else { return(NULL); } } + + /* Set the description of a given serie */ + function setSerieDescription($Serie=NULL,$Description="My serie") + { if (isset($this->Data["Series"][$Serie]) ) { $this->Data["Series"][$Serie]["Description"] = $Description; } } + + /* Set a serie as "drawable" while calling a rendering function */ + function setSerieDrawable($Serie=NULL ,$Drawable=TRUE) + { if (isset($this->Data["Series"][$Serie]) ) { $this->Data["Series"][$Serie]["isDrawable"] = $Drawable; } } + + /* Set the icon associated to a given serie */ + function setSeriePicture($Serie=NULL,$Picture=NULL) + { if (isset($this->Data["Series"][$Serie]) ) { $this->Data["Series"][$Serie]["Picture"] = $Picture; } } + + /* Set the name of the X Axis */ + function setXAxisName($Name=NULL) + { $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"] = $Serie; } } + + /* Create a scatter group specifyin X and Y data series */ + function setScatterSerie($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"] = $SerieY; } } + + /* Set the description of a given scatter serie */ + function setScatterSerieDescription($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"][$Serie]) ) + return(array_sum($this->Data["Series"][$Serie]["Data"])/sizeof($this->Data["Series"][$Serie]["Data"])); + else + return(NULL); + } + + /* Return the x th percentil of the given serie */ + function getSeriePercentile($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"] = $Identity; } } + + /* Associate one data serie with one axis */ + function setSerieOnAxis($Serie,$AxisID) + { + $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($Serie,$Width=0) + { if ( isset($this->Data["Series"][$Serie]) ) { $this->Data["Series"][$Serie]["Ticks"] = $Width; } } + + /* Define if a serie should be draw with a special weight */ + function setSerieWeight($Serie,$Weight=0) + { if ( isset($this->Data["Series"][$Serie]) ) { $this->Data["Series"][$Serie]["Weight"] = $Weight; } } + + /* Set the color of one serie */ + function setPalette($Serie,$Format=NULL) + { + $R = isset($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; + + 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($Handle); + } + } + + /* Return the data & configuration of the series */ + function getData() + { return($this->Data); } + + /* 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; } + + /* Called by the scaling algorithm to save the orientation of the scale */ + function saveOrientation($Orientation) { $this->Data["Orientation"]=$Orientation; } + + /* Class string wrapper */ + function __toString() + { return("pData object."); } + } +?>