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setXAxisUnit - Define the unit to use on the X Axis

This function allows you to set the unit associated to the X Axis. This unit will be displayed when the axis display mode is set to AXIS_FORMAT_UNIT.

Calling this function
setXAxisUnit($Unit);

Where :

Unit is the kind of data that will be displayed.


Sample script #1

 /* Create the pData object */
 $MyData = new pData(); 

 /* Units appended to the axis values will be "m/s" */
 $MyData->setXAxisUnit("m/s");

Sample script #2



 $MyData = new pData();  

 /* Prepare some nice data & axis config */
 $MyData = new pData();  
 $MyData->addPoints(array(1700,2500,7800,4500,3150),"Distance");
 $MyData->setAxisName(0,"Maximum distance");
 $MyData->setAxisUnit(0,"m");
 $MyData->setAxisDisplay(0,AXIS_FORMAT_METRIC);

 /* Create the X serie */
 $MyData->addPoints(array(1230768000,1233446400,1235865600,1238544000,1241136000,1243814400),"Timestamp");
 $MyData->setSerieDescription("Timestamp","Sampled Dates");
 $MyData->setAbscissa("Timestamp");
 $MyData->setXAxisDisplay(AXIS_FORMAT_DATE);

 /* Define the graph area and do some makeup */
 $myPicture->setGraphArea(60,60,660,190);
 $myPicture->drawText(350,55,"My chart title",array("FontSize"=>20,"Align"=>TEXT_ALIGN_BOTTOMMIDDLE));
 $myPicture->drawFilledRectangle(60,60,660,190,array("R"=>255,"G"=>255,"B"=>255,"Surrounding"=>-200,"Alpha"=>10));

 /* Compute and draw the scale */
 $myPicture->drawScale();
Last updated on 01/06/2011 
by Jean-Damien 
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