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Language Reference » Linear Bubble chart » bubbleScale
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bubbleScale - Correct the chart scale for bubble charts Require pChart 2.0.13 A the bubble chart add extra boundaries to your charts, the scale must be updated accordingly. Calling this function will fix the chart scale Min / Max so the bubble will never go outside the borders of the charting area. Calling this function
bubbleScale($DataSeries,$WeightSeries);Where : DataSeries is an array containing the name of the serie providing the Y values.
WeightSeries is an array containing the name of the serie providing the Z values. Sample script #1 
/* pChart library inclusions */
include("../class/pData.class.php");
include("../class/pDraw.class.php");
include("../class/pImage.class&.phpquot;);
include("../class/pBubble.class.php");
/* Create and populate the pData object */
$MyData = new pData();
$MyData->addPoints(array(34,55,15,62,38,42),"Probe1");
$MyData->addPoints(array(5,10,8,9,15,10),"Probe1Weight");
$MyData->addPoints(array(5,10,-5,-1,0,-10),"Probe2");
$MyData->addPoints(array(6,10,14,10,14,6),"Probe2Weight");
$MyData->setSerieDescription("Probe1","This year");
$MyData->setSerieDescription("Probe2","Last year");
$MyData->setAxisName(0,"Current stock");
$MyData->addPoints(array("Apple","Banana","Orange","Lemon","Peach","Strawberry"),"Product");
$MyData->setAbscissa("Product");
/* Create the pChart object */
$myPicture = new pImage(700,230,$MyData);
/* Draw the background */
$Settings = array("R"=>170, "G"=>183, "B"=>87, "Dash"=>1, "DashR"=>190, "DashG"=>203, "DashB"=>107);
$myPicture->drawFilledRectangle(0,0,700,230,$Settings);
/* Overlay with a gradient */
$Settings = array("StartR"=>219, "StartG"=>231, "StartB"=>139, "EndR"=>1, "EndG"=>138, "EndB"=>68, "Alpha"=>50);
$myPicture->drawGradientArea(0,0,700,230,DIRECTION_VERTICAL,$Settings);
$myPicture->drawGradientArea(0,0,700,20,DIRECTION_VERTICAL,array("StartR"=>0,"StartG"=>0,"StartB"=>0,"EndR"=>50,"EndG"=>50,"EndB"=>50,"Alpha"=>80));
/* Add a border to the picture */
$myPicture->drawRectangle(0,0,699,229,array("R"=>0,"G"=>0,"B"=>0));
/* Write the picture title */
$myPicture->setFontProperties(array("FontName"=>"../fonts/Silkscreen.ttf","FontSize"=>6));
$myPicture->drawText(10,13,"drawBubbleChart() - draw a linear bubble chart",array("R"=>255,"G"=>255,"B"=>255));
/* Write the title */
$myPicture->setFontProperties(array("FontName"=>"../fonts/Forgotte.ttf","FontSize"=>11));
$myPicture->drawText(40,55,"Current Stock / Needs chart",array("FontSize"=>14,"Align"=>TEXT_ALIGN_BOTTOMLEFT));
/* Change the default font */
$myPicture->setFontProperties(array("FontName"=>"../fonts/pf_arma_five.ttf","FontSize"=>6));
/* Create the Bubble chart object and scale up */
$myBubbleChart = new pBubble($myPicture,$MyData);
/* Scale up for the bubble chart */
$bubbleDataSeries = array("Probe1","Probe2");
$bubbleWeightSeries = array("Probe1Weight","Probe2Weight");
$myBubbleChart->bubbleScale($bubbleDataSeries,$bubbleWeightSeries);
/* Draw the 1st chart */
$myPicture->setGraphArea(40,60,430,190);
$myPicture->drawFilledRectangle(40,60,430,190,array("R"=>255,"G"=>255,"B"=>255,"Surrounding"=>-200,"Alpha"=>10));
$myPicture->drawScale(array("DrawSubTicks"=>TRUE,"CycleBackground"=>TRUE));
$myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>30));
$myBubbleChart->drawBubbleChart($bubbleDataSeries,$bubbleWeightSeries);
/* Draw the 2nd scale */
$myPicture->setShadow(FALSE);
$myPicture->setGraphArea(500,60,670,190);
$myPicture->drawFilledRectangle(500,60,670,190,array("R"=>255,"G"=>255,"B"=>255,"Surrounding"=>-200,"Alpha"=>10));
$myPicture->drawScale(array("Pos"=>SCALE_POS_TOPBOTTOM,"DrawSubTicks"=>TRUE));
/* Draw the 2nd stock chart */
$myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>30));
$myBubbleChart->drawbubbleChart($bubbleDataSeries,$bubbleWeightSeries);
/* Write the chart legend */
$myPicture->drawLegend(550,215,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));
/* Render the picture (choose the best way) */
$myPicture->autoOutput("pictures/example.drawBubbleChart.png");
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Components used on this web site : Famfamfam icons has been made by Mark James, Rounded corners lite has been coded by Cameron Cooke and Tim Hutchison, SyntaxHighlighter has
been written by Alex Gorbatchev. pChart and this web site have been created by Jean-Damien POGOLOTTI. This documentation contains 185 pages and 56 comments. 415 users have registered.
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