jpgraph_error.php

极限网络智能办公系统 - Office Automation 2008 官方100％ 源码

<?php
 

class ErrorPlot extends Plot
{

	private $errwidth = 2;

	public function ErrorPlot( $datay, $datax = false )
	{
		$this->Plot( $datay, $datax );
		$this->numpoints /= 2;
	}

	public function PreStrokeAdjust( $graph )
	{
		if ( $this->center )
		{
			$a = 0.5;
			$b = 0.5;
			++$this->numpoints;
		}
		else
		{
			$a = 0;
			$b = 0;
		}
		$graph->xaxis->scale->ticks->SetXLabelOffset( $a );
		$graph->SetTextScaleOff( $b );
	}

	public function Stroke( $img, $xscale, $yscale )
	{
		$numpoints = count( $this->coords[0] ) / 2;
		$img->SetColor( $this->color );
		$img->SetLineWeight( $this->weight );
		if ( isset( $this->coords[1] ) )
		{
			if ( count( $this->coords[1] ) != $numpoints )
			{
				JpGraphError::raisel( 2003, count( $this->coords[1] ), $numpoints );
			}
			else
			{
				$exist_x = true;
			}
		}
		else
		{
			$exist_x = false;
		}
		$i = 0;
		for ( ;	$i < $numpoints;	++$i	)
		{
			if ( $exist_x )
			{
				$x = $this->coords[1][$i];
			}
			else
			{
				$x = $i;
			}
			if ( !is_numeric( $x ) && !is_numeric( $this->coords[0][$i * 2] ) && !is_numeric( $this->coords[0][$i * 2 + 1] ) )
			{
				$xt = $xscale->Translate( $x );
				$yt1 = $yscale->Translate( $this->coords[0][$i * 2] );
				$yt2 = $yscale->Translate( $this->coords[0][$i * 2 + 1] );
				$img->Line( $xt, $yt1, $xt, $yt2 );
				$img->Line( $xt - $this->errwidth, $yt1, $xt + $this->errwidth, $yt1 );
				$img->Line( $xt - $this->errwidth, $yt2, $xt + $this->errwidth, $yt2 );
			}
		}
		return true;
	}

}

class ErrorLinePlot extends ErrorPlot
{

	public $line = null;

	public function ErrorLinePlot( $datay, $datax = false )
	{
		$this->ErrorPlot( $datay, $datax );
		$n = count( $datay );
		$i = 0;
		for ( ;	$i < $n;	$i += 2	)
		{
			$ly[] = ( $datay[$i] + $datay[$i + 1] ) / 2;
		}
		$this->line = new LinePlot( $ly, $datax );
	}

	public function Legend( $graph )
	{
		if ( $this->legend != "" )
		{
			$graph->legend->Add( $this->legend, $this->color );
		}
		$this->line->Legend( $graph );
	}

	public function Stroke( $img, $xscale, $yscale )
	{
		parent::stroke( $img, $xscale, $yscale );
		$this->line->Stroke( $img, $xscale, $yscale );
	}

}

class LineErrorPlot extends ErrorPlot
{

	public $line = null;

	public function LineErrorPlot( $datay, $datax = false )
	{
		$ly = array( );
		$ey = array( );
		$n = count( $datay );
		if ( $n % 3 != 0 )
		{
			JpGraphError::raisel( 4002 );
		}
		$i = 0;
		for ( ;	$i < $n;	$i += 3	)
		{
			$ly[] = $datay[$i];
			$ey[] = $datay[$i] + $datay[$i + 1];
			$ey[] = $datay[$i] + $datay[$i + 2];
		}
		$this->ErrorPlot( $ey, $datax );
		$this->line = new LinePlot( $ly, $datax );
	}

	public function Legend( $graph )
	{
		if ( $this->legend != "" )
		{
			$graph->legend->Add( $this->legend, $this->color );
		}
		$this->line->Legend( $graph );
	}

	public function Stroke( $img, $xscale, $yscale )
	{
		parent::stroke( $img, $xscale, $yscale );
		$this->line->Stroke( $img, $xscale, $yscale );
	}

}

?>