jpgraph_pie.php

通达OA2007SE源代码 非常好的

<?php
/*=======================================================================
// File:	JPGRAPH_PIE.PHP
// Description:	Pie plot extension for JpGraph
// Created: 	2001-02-14
// Author:	Johan Persson ([e-mail])
// Ver:		$Id: jpgraph_pie.php 575 2006-03-04 11:04:59Z ljp $
//
// Copyright (c) Aditus Consulting. All rights reserved.
//========================================================================
*/


// Defines for PiePlot::SetLabelType()
DEFINE("PIE_VALUE_ABS",1);
DEFINE("PIE_VALUE_PER",0);
DEFINE("PIE_VALUE_PERCENTAGE",0);
DEFINE("PIE_VALUE_ADJPERCENTAGE",2);
DEFINE("PIE_VALUE_ADJPER",2);

//===================================================
// CLASS PiePlot
// Description: Draws a pie plot
//===================================================
class PiePlot {
    public $posx=0.5,$posy=0.5;
    protected $radius=0.3;
    protected $explode_radius=array(),$explode_all=false,$explode_r=20;
    protected $labels=null, $legends=null;
    protected $csimtargets=null;  // Array of targets for CSIM
    protected $csimareas='';		// Generated CSIM text	
    protected $csimalts=null;		// ALT tags for corresponding target
    protected $data=null;
    public $title;
    protected $startangle=0;
    protected $weight=1, $color="black";
    protected $legend_margin=6,$show_labels=true;
    protected $themearr = array(
	"td" 	=> array(136,22,40,45,49,74,119,149,430,105,333,4,141,168,180,209,218,395,89),
	"earth" 	=> array(136,34,40,45,46,62,63,134,74,10,120,136,141,168,180,77,209,218,346,395,89,430),
	"pastel" => array(27,415,128,59,66,79,105,110,42,147,152,230,236,240,331,337,405,38),
	"water"  => array(8,370,24,40,335,56,213,237,268,14,326,387,10,388),
	"sand"   => array(27,168,34,170,19,50,65,72,131,209,46,393));
    protected $theme="earth";
    protected $setslicecolors=array();
    protected $labeltype=0; // Default to percentage
    protected $pie_border=true,$pie_interior_border=true;
    public $value;
    protected $ishadowcolor='',$ishadowdrop=4;
    protected $ilabelposadj=1;
    protected $legendcsimtargets = array();
    protected $legendcsimalts = array();
    protected $adjusted_data = array();
    public $guideline = null;
    protected $guidelinemargin=10,$iShowGuideLineForSingle = false;
    protected $iGuideLineCurve = false,$iGuideVFactor=1.4,$iGuideLineRFactor=0.8;
	
//---------------
// CONSTRUCTOR
    function PiePlot($data) {
	$this->data = array_reverse($data);
	$this->title = new Text("");
	$this->title->SetFont(FF_FONT1,FS_BOLD);
	$this->value = new DisplayValue();
	$this->value->Show();
	$this->value->SetFormat('%.1f%%');
	$this->guideline = new LineProperty();
    }

//---------------
// PUBLIC METHODS	
    function SetCenter($x,$y=0.5) {
	$this->posx = $x;
	$this->posy = $y;
    }

    // Enable guideline and set drwaing policy
    function SetGuideLines($aFlg=true,$aCurved=true,$aAlways=false) {
	$this->guideline->Show($aFlg);
	$this->iShowGuideLineForSingle = $aAlways;
	$this->iGuideLineCurve = $aCurved;
    }

    // Adjuste the distance between labels and labels and pie
    function SetGuideLinesAdjust($aVFactor,$aRFactor=0.8) {
	$this->iGuideVFactor=$aVFactor;
	$this->iGuideLineRFactor=$aRFactor;
    }

    function SetColor($aColor) {
	$this->color = $aColor;
    }
	
    function SetSliceColors($aColors) {
	$this->setslicecolors = $aColors;
    }
	
    function SetShadow($aColor='darkgray',$aDropWidth=4) {
	$this->ishadowcolor = $aColor;
	$this->ishadowdrop = $aDropWidth;
    }

    function SetCSIMTargets($targets,$alts=null) {
	$this->csimtargets=array_reverse($targets);
	if( is_array($alts) )
	    $this->csimalts=array_reverse($alts);
    }
	
    function GetCSIMareas() {
	return $this->csimareas;
    }

    function AddSliceToCSIM($i,$xc,$yc,$radius,$sa,$ea) {  
        //Slice number, ellipse centre (x,y), height, width, start angle, end angle
	while( $sa > 2*M_PI ) $sa = $sa - 2*M_PI;
	while( $ea > 2*M_PI ) $ea = $ea - 2*M_PI;

	$sa = 2*M_PI - $sa;
	$ea = 2*M_PI - $ea;

	// Special case when we have only one slice since then both start and end
	// angle will be == 0
	if( abs($sa - $ea) < 0.0001 ) {
	    $sa=2*M_PI; $ea=0;
	}

	//add coordinates of the centre to the map
	$xc = floor($xc);$yc=floor($yc);
	$coords = "$xc, $yc";

	//add coordinates of the first point on the arc to the map
	$xp = floor(($radius*cos($ea))+$xc);
	$yp = floor($yc-$radius*sin($ea));
	$coords.= ", $xp, $yp";
	
	//add coordinates every 0.2 radians
	$a=$ea+0.2;

	// If we cross the 360-limit with a slice we need to handle
	// the fact that end angle is smaller than start
	if( $sa < $ea ) {
	    while ($a <= 2*M_PI) {
		$xp = floor($radius*cos($a)+$xc);
		$yp = floor($yc-$radius*sin($a));
		$coords.= ", $xp, $yp";
		$a += 0.2;
	    }
	    $a -= 2*M_PI;
	}


	while ($a < $sa) {
	    $xp = floor($radius*cos($a)+$xc);
	    $yp = floor($yc-$radius*sin($a));
	    $coords.= ", $xp, $yp";
	    $a += 0.2;
	}
		
	//Add the last point on the arc
	$xp = floor($radius*cos($sa)+$xc);
	$yp = floor($yc-$radius*sin($sa));
	$coords.= ", $xp, $yp";
	if( !empty($this->csimtargets[$i]) ) {
	    $this->csimareas .= "<area shape=\"poly\" coords=\"$coords\" href=\"".$this->csimtargets[$i]."\"";
	    $tmp="";
	    if( !empty($this->csimalts[$i]) ) {
		$tmp=sprintf($this->csimalts[$i],$this->data[$i]);
		$this->csimareas .= " title=\"$tmp\"";
	    }
	    $this->csimareas .= " alt=\"$tmp\" />\n";
	}
    }

	
    function SetTheme($aTheme) {
	if( in_array($aTheme,array_keys($this->themearr)) )
	    $this->theme = $aTheme;
	else
	    JpGraphError::RaiseL(15001,$aTheme);//("PiePLot::SetTheme() Unknown theme: $aTheme");
    }
	
    function ExplodeSlice($e,$radius=20) {
	if( ! is_integer($e) ) 
	    JpGraphError::RaiseL(15002);//('Argument to PiePlot::ExplodeSlice() must be an integer');
	$this->explode_radius[$e]=$radius;
    }

    function ExplodeAll($radius=20) {
	$this->explode_all=true;
	$this->explode_r = $radius;
    }

    function Explode($aExplodeArr) {
	if( !is_array($aExplodeArr) ) {
	    JpGraphError::RaiseL(15003);
//("Argument to PiePlot::Explode() must be an array with integer distances.");
	}
	$this->explode_radius = $aExplodeArr;
    }

    function SetStartAngle($aStart) {
	if( $aStart < 0 || $aStart > 360 ) {
	    JpGraphError::RaiseL(15004);//('Slice start angle must be between 0 and 360 degrees.');
	}
	$this->startangle = 360-$aStart;
	$this->startangle *= M_PI/180;
    }
	
    function SetFont($family,$style=FS_NORMAL,$size=10) {
	JpGraphError::RaiseL(15005);//('PiePlot::SetFont() is deprecated. Use PiePlot->value->SetFont() instead.');
    }
	
    // Size in percentage
    function SetSize($aSize) {
	if( ($aSize>0 && $aSize<=0.5) || ($aSize>10 && $aSize<1000) )
	    $this->radius = $aSize;
	else
	    JpGraphError::RaiseL(15006);
//("PiePlot::SetSize() Radius for pie must either be specified as a fraction [0, 0.5] of the size of the image or as an absolute size in pixels  in the range [10, 1000]");
    }
	
    function SetFontColor($aColor) {
	JpGraphError::RaiseL(15007);
//('PiePlot::SetFontColor() is deprecated. Use PiePlot->value->SetColor() instead.');
    }
	
    // Set label arrays
    function SetLegends($aLegend) {
	$this->legends = $aLegend;
    }

    // Set text labels for slices 
    function SetLabels($aLabels,$aLblPosAdj="auto") {
	$this->labels = array_reverse($aLabels);
	$this->ilabelposadj=$aLblPosAdj;
    }

    function SetLabelPos($aLblPosAdj) {
	$this->ilabelposadj=$aLblPosAdj;
    }
	
    // Should we display actual value or percentage?
    function SetLabelType($t) {
	if( $t < 0 || $t > 2 ) 
	    JpGraphError::RaiseL(15008,$t);
//("PiePlot::SetLabelType() Type for pie plots must be 0 or 1 (not $t).");
	$this->labeltype=$t;
    }

    // Deprecated. 
    function SetValueType($aType) {
	$this->SetLabelType($aType);
    }

    // Should the circle around a pie plot be displayed
    function ShowBorder($exterior=true,$interior=true) {
	$this->pie_border = $exterior;
	$this->pie_interior_border = $interior;
    }
	
    // Setup the legends
    function Legend($graph) {
	$colors = array_keys($graph->img->rgb->rgb_table);
   	sort($colors);	
   	$ta=$this->themearr[$this->theme];	
   	$n = count($this->data);

   	if( $this->setslicecolors==null ) {
	    $numcolors=count($ta);
	    if( class_exists('PiePlot3D',false) && ($this instanceof PiePlot3D) ) {
		$ta = array_reverse(array_slice($ta,0,$n));
	    }
	}
   	else {
	    $this->setslicecolors = array_slice($this->setslicecolors,0,$n);
	    $numcolors=count($this->setslicecolors); 
	    if( $graph->pieaa && ($this instanceof PiePlot) ) { 
		$this->setslicecolors = array_reverse($this->setslicecolors);
	    }
	}
		
	$sum=0;
	for($i=0; $i < $n; ++$i)
	    $sum += $this->data[$i];

	// Bail out with error if the sum is 0
	if( $sum==0 )
	    JpGraphError::RaiseL(15009);//("Illegal pie plot. Sum of all data is zero for Pie!");

	// Make sure we don't plot more values than data points
	// (in case the user added more legends than data points)
	$n = min(count($this->legends),count($this->data));
	if( $this->legends != "" ) {
	    $this->legends = array_reverse(array_slice($this->legends,0,$n));
	}
	for( $i=$n-1; $i >= 0; --$i ) {
	    $l = $this->legends[$i];
	    // Replace possible format with actual values
	    if( count($this->csimalts) > $i ) {
		$fmt = $this->csimalts[$i];
	    }
	    else {
		$fmt = "%d"; // Deafult Alt if no other has been specified
	    }
	    if( $this->labeltype==0 ) {
		$l = sprintf($l,100*$this->data[$i]/$sum);
		$alt = sprintf($fmt,$this->data[$i]);
		
	    }
	    elseif( $this->labeltype == 1)  {
		$l = sprintf($l,$this->data[$i]);
		$alt = sprintf($fmt,$this->data[$i]);
		
	    }
	    else {
		$l = sprintf($l,$this->adjusted_data[$i]);
		$alt = sprintf($fmt,$this->adjusted_data[$i]);
	    }

	    if( $this->setslicecolors==null ) {
		$graph->legend->Add($l." ",$colors[$ta[$i%$numcolors]],"",0,$this->csimtargets[$i],$alt);
	    }
	    else {
		$graph->legend->Add($l,$this->setslicecolors[$i%$numcolors],"",0,$this->csimtargets[$i],$alt);
	    }
	}
    }
	
    // Adjust the rounded percetage value so that the sum of
    // of the pie slices are always 100%
    // Using the Hare/Niemeyer method
    function AdjPercentage($aData,$aPrec=0) {
	$mul=100;
	if( $aPrec > 0 && $aPrec < 3 ) {
	    if( $aPrec == 1 ) 
		$mul=1000;
		else
		    $mul=10000;
	}
	
	$tmp = array();
	$result = array();
	$quote_sum=0;
	$n = count($aData) ;
	for( $i=0, $sum=0; $i < $n; ++$i )
	    $sum+=$aData[$i];
	foreach($aData as $index => $value) {
	    $tmp_percentage=$value/$sum*$mul;
	    $result[$index]=floor($tmp_percentage);
	    $tmp[$index]=$tmp_percentage-$result[$index];
	    $quote_sum+=$result[$index];
	}
	if( $quote_sum == $mul) {
	    if( $mul > 100 ) {
		$tmp = $mul / 100;
		for( $i=0; $i < $n; ++$i ) {
		    $result[$i] /= $tmp ;
		}
	    }
	    return $result;
	}
	arsort($tmp,SORT_NUMERIC);
	reset($tmp);
	for($i=0; $i < $mul-$quote_sum; $i++)
	{
	    $result[key($tmp)]++;
	    next($tmp);
	}
	if( $mul > 100 ) {
	    $tmp = $mul / 100;
	    for( $i=0; $i < $n; ++$i ) {
		$result[$i] /= $tmp ;
	    }
	}
	return $result;
    }


    function Stroke($img,$aaoption=0) {
	// aaoption is used to handle antialias
	// aaoption == 0 a normal pie
	// aaoption == 1 just the body
	// aaoption == 2 just the values

	// Explode scaling. If anti anti alias we scale the image
	// twice and we also need to scale the exploding distance
	$expscale = $aaoption === 1 ? 2 : 1;

	if( $this->labeltype == 2 ) {
	    // Adjust the data so that it will add up to 100%
	    $this->adjusted_data = $this->AdjPercentage($this->data);
	}

	$colors = array_keys($img->rgb->rgb_table);
   	sort($colors);	
   	$ta=$this->themearr[$this->theme];	
	$n = count($this->data);
   	
   	if( $this->setslicecolors==null ) {
	    $numcolors=count($ta);
	}
   	else {
	    // We need to create an array of colors as long as the data
	    // since we need to reverse it to get the colors in the right order
	    $numcolors=count($this->setslicecolors); 
	    if( $n > $numcolors ) {
		$i = 2*$numcolors;
		while( $n > $i ) {
		    $this->setslicecolors = array_merge($this->setslicecolors,$this->setslicecolors);
		    $i += $n;
		}
		$tt = array_slice($this->setslicecolors,0,$n % $numcolors);
		$this->setslicecolors = array_merge($this->setslicecolors,$tt);
		$this->setslicecolors = array_reverse($this->setslicecolors);
	    }
	}

	// Draw the slices
	$sum=0;
	for($i=0; $i < $n; ++$i)
	    $sum += $this->data[$i];
	
	// Bail out with error if the sum is 0
	if( $sum==0 )
	    JpGraphError::RaiseL(15009);//("Sum of all data is 0 for Pie.");
	
	// Set up the pie-circle
	if( $this->radius <= 1 )
	    $radius = floor($this->radius*min($img->width,$img->height));
	else {
	    $radius = $aaoption === 1 ? $this->radius*2 : $this->radius;
	}

	if( $this->posx <= 1 && $this->posx > 0 )
	    $xc = round($this->posx*$img->width);
	else
	    $xc = $this->posx ;
	
	if( $this->posy <= 1 && $this->posy > 0 )
	    $yc = round($this->posy*$img->height);
	else
	    $yc = $this->posy ;
		
	$n = count($this->data);

	if( $this->explode_all )
	    for($i=0; $i < $n; ++$i)
		$this->explode_radius[$i]=$this->explode_r;

	if( $this->ishadowcolor != "" && $aaoption !== 2) {
	    $accsum=0;
	    $angle2 = $this->startangle;
	    $img->SetColor($this->ishadowcolor);