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Language Reference » Dataset functions » setXAxisUnit
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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();
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