/
pChart.class.php
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/
pChart.class.php
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<?php
/*
pChart - a PHP class to build charts!
Copyright (C) 2008 Jean-Damien POGOLOTTI
Version 1.27d last updated on 09/30/08
http://pchart.sourceforge.net
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 1,2,3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Class initialisation :
pChart($XSize,$YSize)
Draw methods :
drawBackground($R,$G,$B)
drawRectangle($X1,$Y1,$X2,$Y2,$R,$G,$B)
drawFilledRectangle($X1,$Y1,$X2,$Y2,$R,$G,$B,$DrawBorder=TRUE,$Alpha=100)
drawRoundedRectangle($X1,$Y1,$X2,$Y2,$Radius,$R,$G,$B)
drawFilledRoundedRectangle($X1,$Y1,$X2,$Y2,$Radius,$R,$G,$B)
drawCircle($Xc,$Yc,$Height,$R,$G,$B,$Width=0)
drawFilledCircle($Xc,$Yc,$Height,$R,$G,$B,$Width=0)
drawEllipse($Xc,$Yc,$Height,$Width,$R,$G,$B)
drawFilledEllipse($Xc,$Yc,$Height,$Width,$R,$G,$B)
drawLine($X1,$Y1,$X2,$Y2,$R,$G,$B,$GraphFunction=FALSE)
drawDottedLine($X1,$Y1,$X2,$Y2,$DotSize,$R,$G,$B)
drawAlphaPixel($X,$Y,$Alpha,$R,$G,$B)
drawFromPNG($FileName,$X,$Y,$Alpha=100)
drawFromGIF($FileName,$X,$Y,$Alpha=100)
drawFromJPG($FileName,$X,$Y,$Alpha=100)
Graph setup methods :
addBorder($Width=3,$R=0,$G=0,$B=0)
clearScale()
clearShadow()
createColorGradientPalette($R1,$G1,$B1,$R2,$G2,$B2,$Shades)
drawGraphArea($R,$G,$B,$Stripe=FALSE)
drawScale($Data,$DataDescription,$ScaleMode,$R,$G,$B,$DrawTicks=TRUE,$Angle=0,$Decimals=1,$WithMargin=FALSE,$SkipLabels=1,$RightScale=FALSE)
drawRightScale($Data,$DataDescription,$ScaleMode,$R,$G,$B,$DrawTicks=TRUE,$Angle=0,$Decimals=1,$WithMargin=FALSE,$SkipLabels=1)
drawXYScale($Data,$DataDescription,$YSerieName,$XSerieName,$R,$G,$B,$WithMargin=0,$Angle=0,$Decimals=1)
drawGrid($LineWidth,$Mosaic=TRUE,$R=220,$G=220,$B=220,$Alpha=100)
drawLegend($XPos,$YPos,$DataDescription,$R,$G,$B,$Rs=-1,$Gs=-1,$Bs=-1,$Rt=0,$Gt=0,$Bt=0,$Border=FALSE)
drawPieLegend($XPos,$YPos,$Data,$DataDescription,$R,$G,$B)
drawTitle($XPos,$YPos,$Value,$R,$G,$B,$XPos2=-1,$YPos2=-1,$Shadow=FALSE)
drawTreshold($Value,$R,$G,$B,$ShowLabel=FALSE,$ShowOnRight=FALSE,$TickWidth=4,$FreeText=NULL)
drawArea($Data,$Serie1,$Serie2,$R,$G,$B,$Alpha = 50)
drawRadarAxis($Data,$DataDescription,$Mosaic=TRUE,$BorderOffset=10,$A_R=60,$A_G=60,$A_B=60,$S_R=200,$S_G=200,$S_B=200,$MaxValue=-1)
drawGraphAreaGradient($R,$G,$B,$Decay,$Target=TARGET_GRAPHAREA)
drawTextBox($X1,$Y1,$X2,$Y2,$Text,$Angle=0,$R=255,$G=255,$B=255,$Align=ALIGN_LEFT,$Shadow=TRUE,$BgR=-1,$BgG=-1,$BgB=-1,$Alpha=100)
getLegendBoxSize($DataDescription)
loadColorPalette($FileName,$Delimiter=",")
reportWarnings($Interface="CLI")
setGraphArea($X1,$Y1,$X2,$Y2)
setLabel($Data,$DataDescription,$SerieName,$ValueName,$Caption,$R=210,$G=210,$B=210)
setColorPalette($ID,$R,$G,$B)
setCurrency($Currency)
setDateFormat($Format)
setFontProperties($FontName,$FontSize)
setLineStyle($Width=1,$DotSize=0)
setFixedScale($VMin,$VMax,$Divisions=5,$VXMin=0,$VXMin=0,$XDivisions=5)
setShadowProperties($XDistance=1,$YDistance=1,$R=60,$G=60,$B=60,$Alpha)
writeValues($Data,$DataDescription,$Series)
Graphs methods :
drawPlotGraph($Data,$DataDescription,$BigRadius=5,$SmallRadius=2,$R2=-1,$G2=-1,$B2=-1,$Shadow=FALSE)
drawXYPlotGraph($Data,$DataDescription,$YSerieName,$XSerieName,$PaletteID=0,$BigRadius=5,$SmallRadius=2,$R2=-1,$G2=-1,$B2=-1)
drawLineGraph($Data,$DataDescription,$SerieName="")
drawXYGraph($Data,$DataDescription,$YSerieName,$XSerieName,$PaletteID=0)
drawFilledLineGraph($Data,$DataDescription,$Alpha=100,$AroundZero=FALSE)
drawCubicCurve($Data,$DataDescription,$Accuracy=.1,$SerieName="")
drawFilledCubicCurve($Data,$DataDescription,$Accuracy=.1,$Alpha=100,$AroundZero=FALSE)
drawOverlayBarGraph($Data,$DataDescription,$Alpha=50)
drawBarGraph($Data,$DataDescription,$Shadow=FALSE)
drawStackedBarGraph($Data,$DataDescription,$Alpha=50,$Contiguous=FALSE)
drawLimitsGraph($Data,$DataDescription,$R=0,$G=0,$B=0)
drawRadar($Data,$DataDescription,$BorderOffset=10,$MaxValue=-1)
drawFilledRadar($Data,$DataDescription,$Alpha=50,$BorderOffset=10,$MaxValue=-1)
drawBasicPieGraph($Data,$DataDescription,$XPos,$YPos,$Radius=100,$DrawLabels=PIE_NOLABEL,$R=255,$G=255,$B=255,$Decimals=0)
drawFlatPieGraph($Data,$DataDescription,$XPos,$YPos,$Radius=100,$DrawLabels=PIE_NOLABEL,$SpliceDistance=0,$Decimals = 0)
drawFlatPieGraphWithShadow($Data,$DataDescription,$XPos,$YPos,$Radius=100,$DrawLabels=PIE_NOLABEL,$SpliceDistance=0,$Decimals = 0)
drawPieGraph($Data,$DataDescription,$XPos,$YPos,$Radius=100,$DrawLabels=PIE_NOLABEL,$EnhanceColors=TRUE,$Skew=60,$SpliceHeight=20,$SpliceDistance=0,$Decimals=0)
Other methods :
setImageMap($Mode=TRUE,$GraphID="MyGraph")
getImageMap($MapName,$Flush=TRUE)
Render($FileName)
Stroke()
*/
/* Declare some script wide constants */
define("SCALE_NORMAL",1);
define("SCALE_ADDALL",2);
define("SCALE_START0",3);
define("SCALE_ADDALLSTART0",4);
define("PIE_PERCENTAGE", 1);
define("PIE_LABELS",2);
define("PIE_NOLABEL",3);
define("PIE_PERCENTAGE_LABEL", 4);
define("TARGET_GRAPHAREA",1);
define("TARGET_BACKGROUND",2);
define("ALIGN_TOP_LEFT",1);
define("ALIGN_TOP_CENTER",2);
define("ALIGN_TOP_RIGHT",3);
define("ALIGN_LEFT",4);
define("ALIGN_CENTER",5);
define("ALIGN_RIGHT",6);
define("ALIGN_BOTTOM_LEFT",7);
define("ALIGN_BOTTOM_CENTER",8);
define("ALIGN_BOTTOM_RIGHT",9);
/* pChart class definition */
class pChart
{
/* Palettes definition */
var $Palette = array("0"=>array("R"=>188,"G"=>224,"B"=>46),
"1"=>array("R"=>224,"G"=>100,"B"=>46),
"2"=>array("R"=>224,"G"=>214,"B"=>46),
"3"=>array("R"=>46,"G"=>151,"B"=>224),
"4"=>array("R"=>176,"G"=>46,"B"=>224),
"5"=>array("R"=>224,"G"=>46,"B"=>117),
"6"=>array("R"=>92,"G"=>224,"B"=>46),
"7"=>array("R"=>224,"G"=>176,"B"=>46));
/* Some static vars used in the class */
var $XSize = NULL;
var $YSize = NULL;
var $Picture = NULL;
var $ImageMap = NULL;
/* Error management */
var $ErrorReporting = FALSE;
var $ErrorInterface = "CLI";
var $Errors = NULL;
var $ErrorFontName = "Fonts/pf_arma_five.ttf";
var $ErrorFontSize = 6;
/* vars related to the graphing area */
var $GArea_X1 = NULL;
var $GArea_Y1 = NULL;
var $GArea_X2 = NULL;
var $GArea_Y2 = NULL;
var $GAreaXOffset = NULL;
var $VMax = NULL;
var $VMin = NULL;
var $VXMax = NULL;
var $VXMin = NULL;
var $Divisions = NULL;
var $XDivisions = NULL;
var $DivisionHeight = NULL;
var $XDivisionHeight = NULL;
var $DivisionCount = NULL;
var $XDivisionCount = NULL;
var $DivisionRatio = NULL;
var $XDivisionRatio = NULL;
var $DivisionWidth = NULL;
var $DataCount = NULL;
var $Currency = "\$";
/* Text format related vars */
var $FontName = NULL;
var $FontSize = NULL;
var $DateFormat = "d/m/Y";
/* Lines format related vars */
var $LineWidth = 1;
var $LineDotSize = 0;
/* Layer related vars */
var $Layers = NULL;
/* Set antialias quality : 0 is maximum, 100 minimum*/
var $AntialiasQuality = 0;
/* Shadow settings */
var $ShadowActive = FALSE;
var $ShadowXDistance = 1;
var $ShadowYDistance = 1;
var $ShadowRColor = 60;
var $ShadowGColor = 60;
var $ShadowBColor = 60;
var $ShadowAlpha = 50;
var $ShadowBlur = 0;
/* Image Map settings */
var $BuildMap = FALSE;
var $MapFunction = NULL;
var $tmpFolder = "tmp/";
var $MapID = NULL;
/* This function create the background picture */
public function __construct($XSize,$YSize)
{
$this->XSize = $XSize;
$this->YSize = $YSize;
if (function_exists('imagecreatetruecolor')) {
$this->Picture = imagecreatetruecolor($XSize,$YSize);
}
else
{
$this->Picture = imagecreate($XSize,$YSize);
}
$C_White =$this->AllocateColor($this->Picture,255,255,255);
imagefilledrectangle($this->Picture,0,0,$XSize,$YSize,$C_White);
imagecolortransparent($this->Picture,$C_White);
$this->setFontProperties("tahoma.ttf",8);
}
/* Set if warnings should be reported */
function reportWarnings($Interface="CLI")
{
$this->ErrorReporting = TRUE;
$this->ErrorInterface = $Interface;
}
/* Set the font properties */
function setFontProperties($FontName,$FontSize)
{
$this->FontName = $FontName;
$this->FontSize = $FontSize;
}
/* Set the shadow properties */
function setShadowProperties($XDistance=1,$YDistance=1,$R=60,$G=60,$B=60,$Alpha=50,$Blur=0)
{
$this->ShadowActive = TRUE;
$this->ShadowXDistance = $XDistance;
$this->ShadowYDistance = $YDistance;
$this->ShadowRColor = $R;
$this->ShadowGColor = $G;
$this->ShadowBColor = $B;
$this->ShadowAlpha = $Alpha;
$this->ShadowBlur = $Blur;
}
/* Remove shadow option */
function clearShadow()
{
$this->ShadowActive = FALSE;
}
/* Set Palette color */
function setColorPalette($ID,$R,$G,$B)
{
if ( $R < 0 ) { $R = 0; } if ( $R > 255 ) { $R = 255; }
if ( $G < 0 ) { $G = 0; } if ( $G > 255 ) { $G = 255; }
if ( $B < 0 ) { $B = 0; } if ( $B > 255 ) { $B = 255; }
$this->Palette[$ID]["R"] = $R;
$this->Palette[$ID]["G"] = $G;
$this->Palette[$ID]["B"] = $B;
}
/* Create a color palette shading from one color to another */
function createColorGradientPalette($R1,$G1,$B1,$R2,$G2,$B2,$Shades)
{
$RFactor = ($R2-$R1)/$Shades;
$GFactor = ($G2-$G1)/$Shades;
$BFactor = ($B2-$B1)/$Shades;
for($i=0;$i<=$Shades-1;$i++)
{
$this->Palette[$i]["R"] = $R1+$RFactor*$i;
$this->Palette[$i]["G"] = $G1+$GFactor*$i;
$this->Palette[$i]["B"] = $B1+$BFactor*$i;
}
}
/* Load Color Palette from file */
function loadColorPalette($FileName,$Delimiter=",")
{
$handle = @fopen($FileName,"r");
$ColorID = 0;
if ($handle)
{
while (!feof($handle))
{
$buffer = fgets($handle, 4096);
$buffer = str_replace(chr(10),"",$buffer);
$buffer = str_replace(chr(13),"",$buffer);
$Values = explode($Delimiter,$buffer);
if ( count($Values) == 3 )
{
$this->Palette[$ColorID]["R"] = $Values[0];
$this->Palette[$ColorID]["G"] = $Values[1];
$this->Palette[$ColorID]["B"] = $Values[2];
$ColorID++;
}
}
}
}
/* Set line style */
function setLineStyle($Width=1,$DotSize=0)
{
$this->LineWidth = $Width;
$this->LineDotSize = $DotSize;
}
/* Set currency symbol */
function setCurrency($Currency)
{
$this->Currency = $Currency;
}
/* Set the graph area location */
function setGraphArea($X1,$Y1,$X2,$Y2)
{
$this->GArea_X1 = $X1;
$this->GArea_Y1 = $Y1;
$this->GArea_X2 = $X2;
$this->GArea_Y2 = $Y2;
}
/* Prepare the graph area */
function drawGraphArea($R,$G,$B,$Stripe=FALSE)
{
$this->drawFilledRectangle($this->GArea_X1,$this->GArea_Y1,$this->GArea_X2,$this->GArea_Y2,$R,$G,$B,FALSE);
$this->drawRectangle($this->GArea_X1,$this->GArea_Y1,$this->GArea_X2,$this->GArea_Y2,$R-40,$G-40,$B-40);
if ( $Stripe )
{
$R2 = $R-15; if ( $R2 < 0 ) { $R2 = 0; }
$G2 = $R-15; if ( $G2 < 0 ) { $G2 = 0; }
$B2 = $R-15; if ( $B2 < 0 ) { $B2 = 0; }
$LineColor =$this->AllocateColor($this->Picture,$R2,$G2,$B2);
$SkewWidth = $this->GArea_Y2-$this->GArea_Y1-1;
for($i=$this->GArea_X1-$SkewWidth;$i<=$this->GArea_X2;$i=$i+4)
{
$X1 = $i; $Y1 = $this->GArea_Y2;
$X2 = $i+$SkewWidth; $Y2 = $this->GArea_Y1;
if ( $X1 < $this->GArea_X1 )
{ $X1 = $this->GArea_X1; $Y1 = $this->GArea_Y1 + $X2 - $this->GArea_X1 + 1; }
if ( $X2 >= $this->GArea_X2 )
{ $Y2 = $this->GArea_Y1 + $X2 - $this->GArea_X2 +1; $X2 = $this->GArea_X2 - 1; }
// * Fixed in 1.27 * { $X2 = $this->GArea_X2 - 1; $Y2 = $this->GArea_Y2 - ($this->GArea_X2 - $X1); }
imageline($this->Picture,$X1,$Y1,$X2,$Y2+1,$LineColor);
}
}
}
/* Allow you to clear the scale : used if drawing multiple charts */
function clearScale()
{
$this->VMin = NULL;
$this->VMax = NULL;
$this->VXMin = NULL;
$this->VXMax = NULL;
$this->Divisions = NULL;
$this->XDivisions = NULL; }
/* Allow you to fix the scale, use this to bypass the automatic scaling */
function setFixedScale($VMin,$VMax,$Divisions=5,$VXMin=0,$VXMax=0,$XDivisions=5)
{
$this->VMin = $VMin;
$this->VMax = $VMax;
$this->Divisions = $Divisions;
if ( !$VXMin == 0 )
{
$this->VXMin = $VXMin;
$this->VXMax = $VXMax;
$this->XDivisions = $XDivisions;
}
}
/* Wrapper to the drawScale() function allowing a second scale to be drawn */
function drawRightScale($Data,$DataDescription,$ScaleMode,$R,$G,$B,$DrawTicks=TRUE,$Angle=0,$Decimals=1,$WithMargin=FALSE,$SkipLabels=1)
{
$this->drawScale($Data,$DataDescription,$ScaleMode,$R,$G,$B,$DrawTicks,$Angle,$Decimals,$WithMargin,$SkipLabels,TRUE);
}
/* Compute and draw the scale */
function drawScale($Data,$DataDescription,$ScaleMode,$R,$G,$B,$DrawTicks=TRUE,$Angle=0,$Decimals=1,$WithMargin=FALSE,$SkipLabels=1,$RightScale=FALSE)
{
/* Validate the Data and DataDescription array */
$this->validateData("drawScale",$Data);
$C_TextColor =$this->AllocateColor($this->Picture,$R,$G,$B);
$this->drawLine($this->GArea_X1,$this->GArea_Y1,$this->GArea_X1,$this->GArea_Y2,$R,$G,$B);
$this->drawLine($this->GArea_X1,$this->GArea_Y2,$this->GArea_X2,$this->GArea_Y2,$R,$G,$B);
if ( $this->VMin == NULL && $this->VMax == NULL)
{
if (isset($DataDescription["Values"][0]))
{
$this->VMin = $Data[0][$DataDescription["Values"][0]];
$this->VMax = $Data[0][$DataDescription["Values"][0]];
}
else { $this->VMin = 2147483647; $this->VMax = -2147483647; }
/* Compute Min and Max values */
if ( $ScaleMode == SCALE_NORMAL || $ScaleMode == SCALE_START0 )
{
if ( $ScaleMode == SCALE_START0 ) { $this->VMin = 0; }
foreach ( $Data as $Key => $Values )
{
foreach ( $DataDescription["Values"] as $Key2 => $ColName )
{
if (isset($Data[$Key][$ColName]))
{
$Value = $Data[$Key][$ColName];
if ( is_numeric($Value) )
{
if ( $this->VMax < $Value) { $this->VMax = $Value; }
if ( $this->VMin > $Value) { $this->VMin = $Value; }
}
}
}
}
}
elseif ( $ScaleMode == SCALE_ADDALL || $ScaleMode == SCALE_ADDALLSTART0 ) /* Experimental */
{
if ( $ScaleMode == SCALE_ADDALLSTART0 ) { $this->VMin = 0; }
foreach ( $Data as $Key => $Values )
{
$Sum = 0;
foreach ( $DataDescription["Values"] as $Key2 => $ColName )
{
if (isset($Data[$Key][$ColName]))
{
$Value = $Data[$Key][$ColName];
if ( is_numeric($Value) )
$Sum += $Value;
}
}
if ( $this->VMax < $Sum) { $this->VMax = $Sum; }
if ( $this->VMin > $Sum) { $this->VMin = $Sum; }
}
}
/* If all values are the same */
if ( $this->VMax == $this->VMin )
{
if ( $this->VMax >= 0 ) { $this->VMax++; }
else { $this->VMin--; }
}
if ($this->VMax==1) {$this->VMax++;}
$DataRange = $this->VMax - $this->VMin;
if ( $DataRange == 0 ) { $DataRange = .1; }
/* Compute automatic scaling */
$ScaleOk = FALSE; $Factor = 1;
$MinDivHeight = 25; $MaxDivs = ($this->GArea_Y2 - $this->GArea_Y1) / $MinDivHeight;
if ( $this->VMin == 0 && $this->VMax == 0 )
{ $this->VMin = 0; $this->VMax = 2; $Scale = 1; $Divisions = 2;}
elseif ($MaxDivs > 1)
{
while(!$ScaleOk)
{
$Scale1 = ( $this->VMax - $this->VMin ) / $Factor;
$Scale2 = ( $this->VMax - $this->VMin ) / $Factor / 2;
$Scale4 = ( $this->VMax - $this->VMin ) / $Factor / 4;
if ( $Scale1 > 1 && $Scale1 <= $MaxDivs && !$ScaleOk) { $ScaleOk = TRUE; $Divisions = floor($Scale1); $Scale = 1;}
if ( $Scale2 > 1 && $Scale2 <= $MaxDivs && !$ScaleOk) { $ScaleOk = TRUE; $Divisions = floor($Scale2); $Scale = 2;}
if (!$ScaleOk)
{
if ( $Scale2 > 1 ) { $Factor = $Factor * 10; }
if ( $Scale2 < 1 ) { $Factor = $Factor / 10; }
}
}
if ( floor($this->VMax / $Scale / $Factor) != $this->VMax / $Scale / $Factor)
{
$GridID = floor ( $this->VMax / $Scale / $Factor) + 1;
$this->VMax = $GridID * $Scale * $Factor;
$Divisions++;
}
if ( floor($this->VMin / $Scale / $Factor) != $this->VMin / $Scale / $Factor)
{
$GridID = floor( $this->VMin / $Scale / $Factor);
$this->VMin = $GridID * $Scale * $Factor;
$Divisions++;
}
}
else /* Can occurs for small graphs */
$Scale = 1;
if ( !isset($Divisions) )
$Divisions = 2;
if ($Scale == 1 && $Divisions%2 == 1)
$Divisions--;
}
else
$Divisions = $this->Divisions;
$this->DivisionCount = $Divisions;
$DataRange = $this->VMax - $this->VMin;
if ( $DataRange == 0 ) { $DataRange = .1; }
$this->DivisionHeight = ( $this->GArea_Y2 - $this->GArea_Y1 ) / $Divisions;
$this->DivisionRatio = ( $this->GArea_Y2 - $this->GArea_Y1 ) / $DataRange;
$this->GAreaXOffset = 0;
if ( count($Data) > 1 )
{
if ( $WithMargin == FALSE )
$this->DivisionWidth = ( $this->GArea_X2 - $this->GArea_X1 ) / (count($Data)-1);
else
{
$this->DivisionWidth = ( $this->GArea_X2 - $this->GArea_X1 ) / (count($Data));
$this->GAreaXOffset = $this->DivisionWidth / 2;
}
}
else
{
$this->DivisionWidth = $this->GArea_X2 - $this->GArea_X1;
$this->GAreaXOffset = $this->DivisionWidth / 2;
}
$this->DataCount = count($Data);
if ( $DrawTicks == FALSE )
return(0);
$YPos = $this->GArea_Y2; $XMin = NULL;
for($i=1;$i<=$Divisions+1;$i++)
{
if ( $RightScale )
$this->drawLine($this->GArea_X2,$YPos,$this->GArea_X2+5,$YPos,$R,$G,$B);
else
$this->drawLine($this->GArea_X1,$YPos,$this->GArea_X1-5,$YPos,$R,$G,$B);
$Value = $this->VMin + ($i-1) * (( $this->VMax - $this->VMin ) / $Divisions);
$Value = round($Value * pow(10,$Decimals)) / pow(10,$Decimals);
if ( $DataDescription["Format"]["Y"] == "number" )
$Value = $Value.$DataDescription["Unit"]["Y"];
if ( $DataDescription["Format"]["Y"] == "time" )
$Value = $this->ToTime($Value);
if ( $DataDescription["Format"]["Y"] == "date" )
$Value = $this->ToDate($Value);
if ( $DataDescription["Format"]["Y"] == "metric" )
$Value = $this->ToMetric($Value);
if ( $DataDescription["Format"]["Y"] == "currency" )
$Value = $this->ToCurrency($Value);
$Position = imageftbbox($this->FontSize,0,$this->FontName,$Value);
$TextWidth = $Position[2]-$Position[0];
if ( $RightScale )
{
imagettftext($this->Picture,$this->FontSize,0,$this->GArea_X2+10,$YPos+($this->FontSize/2),$C_TextColor,$this->FontName,$Value);
if ( $XMin < $this->GArea_X2+15+$TextWidth || $XMin == NULL ) { $XMin = $this->GArea_X2+15+$TextWidth; }
}
else
{
imagettftext($this->Picture,$this->FontSize,0,$this->GArea_X1-10-$TextWidth,$YPos+($this->FontSize/2),$C_TextColor,$this->FontName,$Value);
if ( $XMin > $this->GArea_X1-10-$TextWidth || $XMin == NULL ) { $XMin = $this->GArea_X1-10-$TextWidth; }
}
$YPos = $YPos - $this->DivisionHeight;
}
/* Write the Y Axis caption if set */
if ( isset($DataDescription["Axis"]["Y"]) )
{
$Position = imageftbbox($this->FontSize,90,$this->FontName,$DataDescription["Axis"]["Y"]);
$TextHeight = abs($Position[1])+abs($Position[3]);
$TextTop = (($this->GArea_Y2 - $this->GArea_Y1) / 2) + $this->GArea_Y1 + ($TextHeight/2);
if ( $RightScale )
imagettftext($this->Picture,$this->FontSize,90,$XMin+$this->FontSize,$TextTop,$C_TextColor,$this->FontName,$DataDescription["Axis"]["Y"]);
else
imagettftext($this->Picture,$this->FontSize,90,$XMin-$this->FontSize,$TextTop,$C_TextColor,$this->FontName,$DataDescription["Axis"]["Y"]);
}
/* Horizontal Axis */
$XPos = $this->GArea_X1 + $this->GAreaXOffset;
$ID = 1; $YMax = NULL;
foreach ( $Data as $Key => $Values )
{
if ( $ID % $SkipLabels == 0 )
{
$this->drawLine(floor($XPos),$this->GArea_Y2,floor($XPos),$this->GArea_Y2+5,$R,$G,$B);
$Value = $Data[$Key][$DataDescription["Position"]];
if ( $DataDescription["Format"]["X"] == "number" )
$Value = $Value.$DataDescription["Unit"]["X"];
if ( $DataDescription["Format"]["X"] == "time" )
$Value = $this->ToTime($Value);
if ( $DataDescription["Format"]["X"] == "date" )
$Value = $this->ToDate($Value);
if ( $DataDescription["Format"]["X"] == "metric" )
$Value = $this->ToMetric($Value);
if ( $DataDescription["Format"]["X"] == "currency" )
$Value = $this->ToCurrency($Value);
$Position = imageftbbox($this->FontSize,$Angle,$this->FontName,$Value);
$TextWidth = abs($Position[2])+abs($Position[0]);
$TextHeight = abs($Position[1])+abs($Position[3]);
if ( $Angle == 0 )
{
$YPos = $this->GArea_Y2+18;
imagettftext($this->Picture,$this->FontSize,$Angle,floor($XPos)-floor($TextWidth/2),$YPos,$C_TextColor,$this->FontName,$Value);
}
else
{
$YPos = $this->GArea_Y2+10+$TextHeight;
if ( $Angle <= 90 )
imagettftext($this->Picture,$this->FontSize,$Angle,floor($XPos)-$TextWidth+5,$YPos,$C_TextColor,$this->FontName,$Value);
else
imagettftext($this->Picture,$this->FontSize,$Angle,floor($XPos)+$TextWidth+5,$YPos,$C_TextColor,$this->FontName,$Value);
}
if ( $YMax < $YPos || $YMax == NULL ) { $YMax = $YPos; }
}
$XPos = $XPos + $this->DivisionWidth;
$ID++;
}
/* Write the X Axis caption if set */
if ( isset($DataDescription["Axis"]["X"]) )
{
$Position = imageftbbox($this->FontSize,90,$this->FontName,$DataDescription["Axis"]["X"]);
$TextWidth = abs($Position[2])+abs($Position[0]);
$TextLeft = (($this->GArea_X2 - $this->GArea_X1) / 2) + $this->GArea_X1 + ($TextWidth/2);
imagettftext($this->Picture,$this->FontSize,0,$TextLeft,$YMax+$this->FontSize+5,$C_TextColor,$this->FontName,$DataDescription["Axis"]["X"]);
}
}
/* Compute and draw the scale for X/Y charts */
function drawXYScale($Data,$DataDescription,$YSerieName,$XSerieName,$R,$G,$B,$WithMargin=0,$Angle=0,$Decimals=1)
{
/* Validate the Data and DataDescription array */
$this->validateData("drawScale",$Data);
$C_TextColor =$this->AllocateColor($this->Picture,$R,$G,$B);
$this->drawLine($this->GArea_X1,$this->GArea_Y1,$this->GArea_X1,$this->GArea_Y2,$R,$G,$B);
$this->drawLine($this->GArea_X1,$this->GArea_Y2,$this->GArea_X2,$this->GArea_Y2,$R,$G,$B);
/* Process Y scale */
if ( $this->VMin == NULL && $this->VMax == NULL)
{
$this->VMin = $Data[0][$YSerieName];
$this->VMax = $Data[0][$YSerieName];
foreach ( $Data as $Key => $Values )
{
if (isset($Data[$Key][$YSerieName]))
{
$Value = round($Data[$Key][$YSerieName]);
if ( $this->VMax < $Value) { $this->VMax = $Value; }
if ( $this->VMin > $Value) { $this->VMin = $Value; }
}
}
$DataRange = $this->VMax - $this->VMin;
if ( $DataRange == 0 ) { $DataRange = .1; }
/* Compute automatic scaling */
$ScaleOk = FALSE; $Factor = 1;
$MinDivHeight = 25; $MaxDivs = ($this->GArea_Y2 - $this->GArea_Y1) / $MinDivHeight;
if ( $this->VMin == 0 && $this->VMax == 0 )
{ $this->VMin = 0; $this->VMax = 2; $Scale = 1; $Divisions = 2;}
elseif ($MaxDivs > 1)
{
while(!$ScaleOk)
{
$Scale1 = ( $this->VMax - $this->VMin ) / $Factor;
$Scale2 = ( $this->VMax - $this->VMin ) / $Factor / 2;
$Scale4 = ( $this->VMax - $this->VMin ) / $Factor / 4;
if ( $Scale1 > 1 && $Scale1 <= $MaxDivs && !$ScaleOk) { $ScaleOk = TRUE; $Divisions = floor($Scale1); $Scale = 1;}
if ( $Scale2 > 1 && $Scale2 <= $MaxDivs && !$ScaleOk) { $ScaleOk = TRUE; $Divisions = floor($Scale2); $Scale = 2;}
if (!$ScaleOk)
{
if ( $Scale2 > 1 ) { $Factor = $Factor * 10; }
if ( $Scale2 < 1 ) { $Factor = $Factor / 10; }
}
}
if ( floor($this->VMax / $Scale / $Factor) != $this->VMax / $Scale / $Factor)
{
$GridID = floor ( $this->VMax / $Scale / $Factor) + 1;
$this->VMax = $GridID * $Scale * $Factor;
$Divisions++;
}
if ( floor($this->VMin / $Scale / $Factor) != $this->VMin / $Scale / $Factor)
{
$GridID = floor( $this->VMin / $Scale / $Factor);
$this->VMin = $GridID * $Scale * $Factor;
$Divisions++;
}
}
else /* Can occurs for small graphs */
$Scale = 1;
if ( !isset($Divisions) )
$Divisions = 2;
if ( $this->isRealInt(($this->VMax-$this->VMin)/($Divisions-1)))
$Divisions--;
elseif ( $this->isRealInt(($this->VMax-$this->VMin)/($Divisions+1)))
$Divisions++;
}
else
$Divisions = $this->Divisions;
$this->DivisionCount = $Divisions;
$DataRange = $this->VMax - $this->VMin;
if ( $DataRange == 0 ) { $DataRange = .1; }
$this->DivisionHeight = ( $this->GArea_Y2 - $this->GArea_Y1 ) / $Divisions;
$this->DivisionRatio = ( $this->GArea_Y2 - $this->GArea_Y1 ) / $DataRange;
$YPos = $this->GArea_Y2; $XMin = NULL;
for($i=1;$i<=$Divisions+1;$i++)
{
$this->drawLine($this->GArea_X1,$YPos,$this->GArea_X1-5,$YPos,$R,$G,$B);
$Value = $this->VMin + ($i-1) * (( $this->VMax - $this->VMin ) / $Divisions);
$Value = round($Value * pow(10,$Decimals)) / pow(10,$Decimals);
if ( $DataDescription["Format"]["Y"] == "number" )
$Value = $Value.$DataDescription["Unit"]["Y"];
if ( $DataDescription["Format"]["Y"] == "time" )
$Value = $this->ToTime($Value);
if ( $DataDescription["Format"]["Y"] == "date" )
$Value = $this->ToDate($Value);
if ( $DataDescription["Format"]["Y"] == "metric" )
$Value = $this->ToMetric($Value);
if ( $DataDescription["Format"]["Y"] == "currency" )
$Value = $this->ToCurrency($Value);
$Position = imageftbbox($this->FontSize,0,$this->FontName,$Value);
$TextWidth = $Position[2]-$Position[0];
imagettftext($this->Picture,$this->FontSize,0,$this->GArea_X1-10-$TextWidth,$YPos+($this->FontSize/2),$C_TextColor,$this->FontName,$Value);
if ( $XMin > $this->GArea_X1-10-$TextWidth || $XMin == NULL ) { $XMin = $this->GArea_X1-10-$TextWidth; }
$YPos = $YPos - $this->DivisionHeight;
}
/* Process X scale */
if ( $this->VXMin == NULL && $this->VXMax == NULL)
{
$this->VXMin = $Data[0][$XSerieName];
$this->VXMax = $Data[0][$XSerieName];
foreach ( $Data as $Key => $Values )
{
if (isset($Data[$Key][$XSerieName]))
{
$Value = round($Data[$Key][$XSerieName]);
if ( $this->VXMax < $Value) { $this->VXMax = $Value; }
if ( $this->VXMin > $Value) { $this->VXMin = $Value; }
}
}
$DataRange = $this->VMax - $this->VMin;
if ( $DataRange == 0 ) { $DataRange = .1; }
/* Compute automatic scaling */
$ScaleOk = FALSE; $Factor = 1;
$MinDivWidth = 25; $MaxDivs = ($this->GArea_X2 - $this->GArea_X1) / $MinDivWidth;
if ( $this->VXMin == 0 && $this->VXMax == 0 )
{ $this->VXMin = 0; $this->VXMax = 2; $Scale = 1; $XDivisions = 2;}
elseif ($MaxDivs > 1)
{
while(!$ScaleOk)
{
$Scale1 = ( $this->VXMax - $this->VXMin ) / $Factor;
$Scale2 = ( $this->VXMax - $this->VXMin ) / $Factor / 2;
$Scale4 = ( $this->VXMax - $this->VXMin ) / $Factor / 4;
if ( $Scale1 > 1 && $Scale1 <= $MaxDivs && !$ScaleOk) { $ScaleOk = TRUE; $XDivisions = floor($Scale1); $Scale = 1;}
if ( $Scale2 > 1 && $Scale2 <= $MaxDivs && !$ScaleOk) { $ScaleOk = TRUE; $XDivisions = floor($Scale2); $Scale = 2;}
if (!$ScaleOk)
{
if ( $Scale2 > 1 ) { $Factor = $Factor * 10; }
if ( $Scale2 < 1 ) { $Factor = $Factor / 10; }
}
}
if ( floor($this->VXMax / $Scale / $Factor) != $this->VXMax / $Scale / $Factor)
{
$GridID = floor ( $this->VXMax / $Scale / $Factor) + 1;
$this->VXMax = $GridID * $Scale * $Factor;
$XDivisions++;
}
if ( floor($this->VXMin / $Scale / $Factor) != $this->VXMin / $Scale / $Factor)
{
$GridID = floor( $this->VXMin / $Scale / $Factor);
$this->VXMin = $GridID * $Scale * $Factor;
$XDivisions++;
}
}
else /* Can occurs for small graphs */
$Scale = 1;
if ( !isset($XDivisions) )
$XDivisions = 2;
if ( $this->isRealInt(($this->VXMax-$this->VXMin)/($XDivisions-1)))
$XDivisions--;
elseif ( $this->isRealInt(($this->VXMax-$this->VXMin)/($XDivisions+1)))
$XDivisions++;
}
else
$XDivisions = $this->XDivisions;
$this->XDivisionCount = $Divisions;
$this->DataCount = $Divisions + 2;
$XDataRange = $this->VXMax - $this->VXMin;
if ( $XDataRange == 0 ) { $XDataRange = .1; }
$this->DivisionWidth = ( $this->GArea_X2 - $this->GArea_X1 ) / $XDivisions;
$this->XDivisionRatio = ( $this->GArea_X2 - $this->GArea_X1 ) / $XDataRange;
$XPos = $this->GArea_X1; $YMax = NULL;
for($i=1;$i<=$XDivisions+1;$i++)
{
$this->drawLine($XPos,$this->GArea_Y2,$XPos,$this->GArea_Y2+5,$R,$G,$B);
$Value = $this->VXMin + ($i-1) * (( $this->VXMax - $this->VXMin ) / $XDivisions);
$Value = round($Value * pow(10,$Decimals)) / pow(10,$Decimals);
if ( $DataDescription["Format"]["Y"] == "number" )
$Value = $Value.$DataDescription["Unit"]["Y"];
if ( $DataDescription["Format"]["Y"] == "time" )
$Value = $this->ToTime($Value);
if ( $DataDescription["Format"]["Y"] == "date" )
$Value = $this->ToDate($Value);
if ( $DataDescription["Format"]["Y"] == "metric" )
$Value = $this->ToMetric($Value);
if ( $DataDescription["Format"]["Y"] == "currency" )
$Value = $this->ToCurrency($Value);
$Position = imageftbbox($this->FontSize,$Angle,$this->FontName,$Value);
$TextWidth = abs($Position[2])+abs($Position[0]);
$TextHeight = abs($Position[1])+abs($Position[3]);
if ( $Angle == 0 )
{
$YPos = $this->GArea_Y2+18;
imagettftext($this->Picture,$this->FontSize,$Angle,floor($XPos)-floor($TextWidth/2),$YPos,$C_TextColor,$this->FontName,$Value);
}
else
{
$YPos = $this->GArea_Y2+10+$TextHeight;
if ( $Angle <= 90 )
imagettftext($this->Picture,$this->FontSize,$Angle,floor($XPos)-$TextWidth+5,$YPos,$C_TextColor,$this->FontName,$Value);
else
imagettftext($this->Picture,$this->FontSize,$Angle,floor($XPos)+$TextWidth+5,$YPos,$C_TextColor,$this->FontName,$Value);
}
if ( $YMax < $YPos || $YMax == NULL ) { $YMax = $YPos; }
$XPos = $XPos + $this->DivisionWidth;
}
/* Write the Y Axis caption if set */
if ( isset($DataDescription["Axis"]["Y"]) )
{
$Position = imageftbbox($this->FontSize,90,$this->FontName,$DataDescription["Axis"]["Y"]);
$TextHeight = abs($Position[1])+abs($Position[3]);
$TextTop = (($this->GArea_Y2 - $this->GArea_Y1) / 2) + $this->GArea_Y1 + ($TextHeight/2);
imagettftext($this->Picture,$this->FontSize,90,$XMin-$this->FontSize,$TextTop,$C_TextColor,$this->FontName,$DataDescription["Axis"]["Y"]);
}
/* Write the X Axis caption if set */
if ( isset($DataDescription["Axis"]["X"]) )
{
$Position = imageftbbox($this->FontSize,90,$this->FontName,$DataDescription["Axis"]["X"]);
$TextWidth = abs($Position[2])+abs($Position[0]);
$TextLeft = (($this->GArea_X2 - $this->GArea_X1) / 2) + $this->GArea_X1 + ($TextWidth/2);
imagettftext($this->Picture,$this->FontSize,0,$TextLeft,$YMax+$this->FontSize+5,$C_TextColor,$this->FontName,$DataDescription["Axis"]["X"]);
}
}
/* Compute and draw the scale */
function drawGrid($LineWidth,$Mosaic=TRUE,$R=220,$G=220,$B=220,$Alpha=100)
{
/* Draw mosaic */
if ( $Mosaic )
{
$LayerWidth = $this->GArea_X2-$this->GArea_X1;
$LayerHeight = $this->GArea_Y2-$this->GArea_Y1;
$this->Layers[0] = imagecreatetruecolor($LayerWidth,$LayerHeight);
$C_White =$this->AllocateColor($this->Layers[0],255,255,255);
imagefilledrectangle($this->Layers[0],0,0,$LayerWidth,$LayerHeight,$C_White);
imagecolortransparent($this->Layers[0],$C_White);
$C_Rectangle =$this->AllocateColor($this->Layers[0],250,250,250);
$YPos = $LayerHeight; //$this->GArea_Y2-1;
$LastY = $YPos;
for($i=0;$i<=$this->DivisionCount;$i++)
{
$LastY = $YPos;
$YPos = $YPos - $this->DivisionHeight;
if ( $YPos <= 0 ) { $YPos = 1; }
if ( $i % 2 == 0 )
{
imagefilledrectangle($this->Layers[0],1,$YPos,$LayerWidth-1,$LastY,$C_Rectangle);
}
}
imagecopymerge($this->Picture,$this->Layers[0],$this->GArea_X1,$this->GArea_Y1,0,0,$LayerWidth,$LayerHeight,$Alpha);
imagedestroy($this->Layers[0]);
}
/* Horizontal lines */
$YPos = $this->GArea_Y2 - $this->DivisionHeight;
for($i=1;$i<=$this->DivisionCount;$i++)
{
if ( $YPos > $this->GArea_Y1 && $YPos < $this->GArea_Y2 )
$this->drawDottedLine($this->GArea_X1,$YPos,$this->GArea_X2,$YPos,$LineWidth,$R,$G,$B);
$YPos = $YPos - $this->DivisionHeight;
}
/* Vertical lines */
if ( $this->GAreaXOffset == 0 )
{ $XPos = $this->GArea_X1 + $this->DivisionWidth + $this->GAreaXOffset; $ColCount = $this->DataCount-2; }
else
{ $XPos = $this->GArea_X1 + $this->GAreaXOffset; $ColCount = floor( ($this->GArea_X2 - $this->GArea_X1) / $this->DivisionWidth ); }
for($i=1;$i<=$ColCount;$i++)
{
if ( $XPos > $this->GArea_X1 && $XPos < $this->GArea_X2 )
$this->drawDottedLine(floor($XPos),$this->GArea_Y1,floor($XPos),$this->GArea_Y2,$LineWidth,$R,$G,$B);
$XPos = $XPos + $this->DivisionWidth;
}
}
/* retrieve the legends size */
function getLegendBoxSize($DataDescription)
{
if ( !isset($DataDescription["Description"]) )
return(-1);
/* <-10->[8]<-4->Text<-10-> */
$MaxWidth = 0; $MaxHeight = 8;
foreach($DataDescription["Description"] as $Key => $Value)
{
$Position = @imageftbbox($this->FontSize,0,$this->FontName,$Value);
$TextWidth = $Position[2]-$Position[0];
$TextHeight = $Position[1]-$Position[7];
if ( $TextWidth > $MaxWidth) { $MaxWidth = $TextWidth; }
$MaxHeight = $MaxHeight + $TextHeight + 4;
}
$MaxHeight = $MaxHeight - 3;
$MaxWidth = $MaxWidth + 32;
return(array($MaxWidth,$MaxHeight));
}
/* Draw the data legends */
function drawLegend($XPos,$YPos,$DataDescription,$R,$G,$B,$Rs=-1,$Gs=-1,$Bs=-1,$Rt=0,$Gt=0,$Bt=0,$Border=TRUE)
{
/* Validate the Data and DataDescription array */
$this->validateDataDescription("drawLegend",$DataDescription);
if ( !isset($DataDescription["Description"]) )
return(-1);
$C_TextColor =$this->AllocateColor($this->Picture,$Rt,$Gt,$Bt);
/* <-10->[8]<-4->Text<-10-> */
$MaxWidth = 0; $MaxHeight = 8;
foreach($DataDescription["Description"] as $Key => $Value)
{
$Position = @imageftbbox($this->FontSize,0,$this->FontName,$Value);
$TextWidth = $Position[2]-$Position[0];
$TextHeight = $Position[1]-$Position[7];
if ( $TextWidth > $MaxWidth) { $MaxWidth = $TextWidth; }
$MaxHeight = $MaxHeight + $TextHeight + 4;
}
$MaxHeight = $MaxHeight - 5;
$MaxWidth = $MaxWidth + 32;