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嗨,我一直在努力制作我想要的图表,并且我正在变得非常接近。jpgraph双Y轴问题
首先,我有一个应该在YAXIS#1上的股票投资组合的业绩数据......这很好。 然后我想在YAXIS#2 ...行情节工作的标杆,但规模是怪异:
注意它是如何开始于50和10进,15,20,等等。 。 事情是规模应该在3400和3800之间,因为这是我的数据范围。
这里是我的代码:
<?php // content="text/plain; charset=utf-8"
require($_SERVER['DOCUMENT_ROOT'] . '/wp-blog-header.php');
require_once ('jpgraph.php');
require_once ('jpgraph_line.php');
require_once ('jpgraph_date.php');
require_once ('jpgraph_utils.inc.php');
// Get a dataset
$data = get_transient('daily_nav');
$ydata = $data[1];
$xdata = $data[0];
$data2 = get_transient('CAC40_history');
$ydata2 = array_reverse($data2[1]);
$xdata2 = array_reverse($data2[0]);
$dateUtils = new DateScaleUtils();
list($tickPositions, $minTickPositions) = DateScaleUtils::GetTicks($xdata);
// Setup a basic graph
$width=800; $height=500;
$graph = new Graph($width, $height);
$graph->SetScale('datlin');
$graph->SetYScale(0,'lin');
$graph->SetYScale(1,'lin');
$graph->SetMargin(60,20,40,60);
$graph->xaxis->SetPos('min');
$graph->xaxis->SetTickPositions($tickPositions,$minTickPositions);
// Setup the titles
$graph->title->SetFont(FF_GEORGIA,FS_NORMAL,16);
$graph->title->Set('Performance vs. CAC40');
$graph->subtitle->SetFont(FF_ARIAL,FS_ITALIC,10);
$graph->subtitle->Set('graphique journalier depuis la création en juin 2012');
// Setup the labels to be correctly format on the X-axis
$graph->xaxis->SetFont(FF_ARIAL,FS_NORMAL,8);
$graph->xaxis->SetLabelAngle(30);
// The second paramter set to 'true' will make the library interpret the
// format string as a date format. We use a Month + Year format m-d-Y
$graph->xaxis->SetLabelFormatString('m-Y',true);
// And then add line. We use two plots in order to get a
// more distinct border on the graph
$lp2 = new LinePlot($ydata,$xdata);
$lp2->SetColor('#71a7da');
$graph->Add($lp2);
$graph->xgrid->Show();
$graph->AddY(0,$lp2);
// second chart
$lp3 = new LinePlot($ydata2, $xdata2);
$lp3->SetColor('blue');
//$graph->Add($lp3);
//$graph->xgrid->Show();
$graph->AddY(1,$lp3);
// And send back to the client
$graph->Stroke();
?>
将是巨大的,如果有人能帮助,想不通这一个。 谢谢