<?php /*======================================================================= // File: JPGRAPH_DATE.PHP // Description: Classes to handle Date scaling // Created: 2005-05-02 // Author: Johan Persson (johanp@aditus.nu) // Ver: $Id: jpgraph_date.php,v 1.1 2006/07/07 13:37:14 powles Exp $ // // Copyright (c) Aditus Consulting. All rights reserved. //======================================================================== */ DEFINE('HOURADJ_1',0+30); DEFINE('HOURADJ_2',1+30); DEFINE('HOURADJ_3',2+30); DEFINE('HOURADJ_4',3+30); DEFINE('HOURADJ_6',4+30); DEFINE('HOURADJ_12',5+30); DEFINE('MINADJ_1',0+20); DEFINE('MINADJ_5',1+20); DEFINE('MINADJ_10',2+20); DEFINE('MINADJ_15',3+20); DEFINE('MINADJ_30',4+20); DEFINE('SECADJ_1',0); DEFINE('SECADJ_5',1); DEFINE('SECADJ_10',2); DEFINE('SECADJ_15',3); DEFINE('SECADJ_30',4); DEFINE('YEARADJ_1',0+30); DEFINE('YEARADJ_2',1+30); DEFINE('YEARADJ_5',2+30); DEFINE('MONTHADJ_1',0+20); DEFINE('MONTHADJ_6',1+20); DEFINE('DAYADJ_1',0); DEFINE('DAYADJ_WEEK',1); DEFINE('DAYADJ_7',1); DEFINE('SECPERYEAR',31536000); DEFINE('SECPERDAY',86400); DEFINE('SECPERHOUR',3600); DEFINE('SECPERMIN',60); class DateScale extends LinearScale { var $date_format = ''; var $iStartAlign = false, $iEndAlign = false; var $iStartTimeAlign = false, $iEndTimeAlign = false; //--------------- // CONSTRUCTOR function DateScale($aMin=0,$aMax=0,$aType='x') { assert($aType=="x"); assert($aMin<=$aMax); $this->type=$aType; $this->scale=array($aMin,$aMax); $this->world_size=$aMax-$aMin; $this->ticks = new LinearTicks(); $this->intscale=true; } //------------------------------------------------------------------------------------------ // Utility Function AdjDate() // Description: Will round a given time stamp to an even year, month or day // argument. //------------------------------------------------------------------------------------------ function AdjDate($aTime,$aRound=0,$aYearType=false,$aMonthType=false,$aDayType=false) { $y = (int)date('Y',$aTime); $m = (int)date('m',$aTime); $d = (int)date('d',$aTime); $h=0;$i=0;$s=0; if( $aYearType !== false ) { $yearAdj = array(0=>1, 1=>2, 2=>5); if( $aRound == 0 ) { $y = floor($y/$yearAdj[$aYearType])*$yearAdj[$aYearType]; } else { ++$y; $y = ceil($y/$yearAdj[$aYearType])*$yearAdj[$aYearType]; } $m=1;$d=1; } elseif( $aMonthType !== false ) { $monthAdj = array(0=>1, 1=>6); if( $aRound == 0 ) { $m = floor($m/$monthAdj[$aMonthType])*$monthAdj[$aMonthType]; $d=1; } else { ++$m; $m = ceil($m/$monthAdj[$aMonthType])*$monthAdj[$aMonthType]; $d=1; } } elseif( $aDayType !== false ) { if( $aDayType == 0 ) { if( $aRound == 1 ) { //++$d; $h=23;$i=59;$s=59; } } else { // Adjust to an even week boundary. $w = (int)date('w',$aTime); // Day of week 0=Sun, 6=Sat if( true ) { // Adjust to start on Mon if( $w==0 ) $w=6; else --$w; } if( $aRound == 0 ) { $d -= $w; } else { $d += (7-$w); $h=23;$i=59;$s=59; } } } return mktime($h,$i,$s,$m,$d,$y); } //------------------------------------------------------------------------------------------ // Wrapper for AdjDate that will round a timestamp to an even date rounding // it downwards. //------------------------------------------------------------------------------------------ function AdjStartDate($aTime,$aYearType=false,$aMonthType=false,$aDayType=false) { return $this->AdjDate($aTime,0,$aYearType,$aMonthType,$aDayType); } //------------------------------------------------------------------------------------------ // Wrapper for AdjDate that will round a timestamp to an even date rounding // it upwards //------------------------------------------------------------------------------------------ function AdjEndDate($aTime,$aYearType=false,$aMonthType=false,$aDayType=false) { return $this->AdjDate($aTime,1,$aYearType,$aMonthType,$aDayType); } //------------------------------------------------------------------------------------------ // Utility Function AdjTime() // Description: Will round a given time stamp to an even time according to // argument. //------------------------------------------------------------------------------------------ function AdjTime($aTime,$aRound=0,$aHourType=false,$aMinType=false,$aSecType=false) { $y = (int)date('Y',$aTime); $m = (int)date('m',$aTime); $d = (int)date('d',$aTime); $h = (int)date('H',$aTime); $i = (int)date('i',$aTime); $s = (int)date('s',$aTime); if( $aHourType !== false ) { $aHourType %= 6; $hourAdj = array(0=>1, 1=>2, 2=>3, 3=>4, 4=>6, 5=>12); if( $aRound == 0 ) $h = floor($h/$hourAdj[$aHourType])*$hourAdj[$aHourType]; else { if( ($h % $hourAdj[$aHourType]==0) && ($i > 0 || $s > 0) ) { $h++; } $h = ceil($h/$hourAdj[$aHourType])*$hourAdj[$aHourType]; if( $h >= 24 ) { $aTime += 86400; $y = (int)date('Y',$aTime); $m = (int)date('m',$aTime); $d = (int)date('d',$aTime); $h -= 24; } } $i=0;$s=0; } elseif( $aMinType !== false ) { $aMinType %= 5; $minAdj = array(0=>1, 1=>5, 2=>10, 3=>15, 4=>30); if( $aRound == 0 ) { $i = floor($i/$minAdj[$aMinType])*$minAdj[$aMinType]; } else { if( ($i % $minAdj[$aMinType]==0) && $s > 0 ) { $i++; } $i = ceil($i/$minAdj[$aMinType])*$minAdj[$aMinType]; if( $i >= 60) { $aTime += 3600; $y = (int)date('Y',$aTime); $m = (int)date('m',$aTime); $d = (int)date('d',$aTime); $h = (int)date('H',$aTime); $i = 0; } } $s=0; } elseif( $aSecType !== false ) { $aSecType %= 5; $secAdj = array(0=>1, 1=>5, 2=>10, 3=>15, 4=>30); if( $aRound == 0 ) { $s = floor($s/$secAdj[$aSecType])*$secAdj[$aSecType]; } else { $s = ceil($s/$secAdj[$aSecType]*1.0)*$secAdj[$aSecType]; if( $s >= 60) { $s=0; $aTime += 60; $y = (int)date('Y',$aTime); $m = (int)date('m',$aTime); $d = (int)date('d',$aTime); $h = (int)date('H',$aTime); $i = (int)date('i',$aTime); } } } return mktime($h,$i,$s,$m,$d,$y); } //------------------------------------------------------------------------------------------ // Wrapper for AdjTime that will round a timestamp to an even time rounding // it downwards. // Example: AdjStartTime(mktime(18,27,13,2,22,2005),false,2) => 18:20 //------------------------------------------------------------------------------------------ function AdjStartTime($aTime,$aHourType=false,$aMinType=false,$aSecType=false) { return $this->AdjTime($aTime,0,$aHourType,$aMinType,$aSecType); } //------------------------------------------------------------------------------------------ // Wrapper for AdjTime that will round a timestamp to an even time rounding // it upwards // Example: AdjEndTime(mktime(18,27,13,2,22,2005),false,2) => 18:30 //------------------------------------------------------------------------------------------ function AdjEndTime($aTime,$aHourType=false,$aMinType=false,$aSecType=false) { return $this->AdjTime($aTime,1,$aHourType,$aMinType,$aSecType); } //------------------------------------------------------------------------------------------ // DateAutoScale // Autoscale a date axis given start and end time // Returns an array ($start,$end,$major,$minor,$format) //------------------------------------------------------------------------------------------ function DoDateAutoScale($aStartTime,$aEndTime,$aDensity=0,$aAdjust=true) { // Format of array // array ( Decision point, array( array( Major-scale-step-array ), // array( Minor-scale-step-array ), // array( 0=date-adjust, 1=time-adjust, adjustment-alignment) ) // $scalePoints = array( /* Intervall larger than 10 years */ SECPERYEAR*10,array(array(SECPERYEAR*5,SECPERYEAR*2), array(SECPERYEAR), array(0,YEARADJ_1, 0,YEARADJ_1) ), /* Intervall larger than 2 years */ SECPERYEAR*2,array(array(SECPERYEAR),array(SECPERYEAR), array(0,YEARADJ_1) ), /* Intervall larger than 90 days (approx 3 month) */ SECPERDAY*90,array(array(SECPERDAY*30,SECPERDAY*14,SECPERDAY*7,SECPERDAY), array(SECPERDAY*5,SECPERDAY*7,SECPERDAY,SECPERDAY), array(0,MONTHADJ_1, 0,DAYADJ_WEEK, 0,DAYADJ_1, 0,DAYADJ_1)), /* Intervall larger than 30 days (approx 1 month) */ SECPERDAY*30,array(array(SECPERDAY*14,SECPERDAY*7,SECPERDAY*2, SECPERDAY), array(SECPERDAY,SECPERDAY.SECPERDAY,SECPERDAY), array(0,DAYADJ_WEEK, 0,DAYADJ_1, 0,DAYADJ_1, 0,DAYADJ_1)), /* Intervall larger than 7 days */ SECPERDAY*7,array(array(SECPERDAY,SECPERHOUR*12,SECPERHOUR*6,SECPERHOUR*2), array(SECPERHOUR*6,SECPERHOUR*3,SECPERHOUR,SECPERHOUR), array(0,DAYADJ_1, 1,HOURADJ_12, 1,HOURADJ_6, 1,HOURADJ_1)), /* Intervall larger than 1 day */ SECPERDAY,array(array(SECPERDAY,SECPERHOUR*12,SECPERHOUR*6,SECPERHOUR*2,SECPERHOUR), array(SECPERHOUR*6,SECPERHOUR*2,SECPERHOUR,SECPERHOUR,SECPERHOUR), array(1,HOURADJ_12, 1,HOURADJ_6, 1,HOURADJ_1, 1,HOURADJ_1)), /* Intervall larger than 12 hours */ SECPERHOUR*12,array(array(SECPERHOUR*2,SECPERHOUR,SECPERMIN*30,900,600), array(1800,1800,900,300,300), array(1,HOURADJ_1, 1,MINADJ_30, 1,MINADJ_15, 1,MINADJ_10, 1,MINADJ_5) ), /* Intervall larger than 2 hours */ SECPERHOUR*2,array(array(SECPERHOUR,SECPERMIN*30,900,600,300), array(1800,900,300,120,60), array(1,HOURADJ_1, 1,MINADJ_30, 1,MINADJ_15, 1,MINADJ_10, 1,MINADJ_5) ), /* Intervall larger than 1 hours */ SECPERHOUR,array(array(SECPERMIN*30,900,600,300),array(900,300,120,60), array(1,MINADJ_30, 1,MINADJ_15, 1,MINADJ_10, 1,MINADJ_5) ), /* Intervall larger than 30 min */ SECPERMIN*30,array(array(SECPERMIN*15,SECPERMIN*10,SECPERMIN*5,SECPERMIN), array(300,300,60,10), array(1,MINADJ_15, 1,MINADJ_10, 1,MINADJ_5, 1,MINADJ_1)), /* Intervall larger than 1 min */ SECPERMIN,array(array(SECPERMIN,15,10,5), array(15,5,2,1), array(1,MINADJ_1, 1,SECADJ_15, 1,SECADJ_10, 1,SECADJ_5)), /* Intervall larger than 10 sec */ 10,array(array(5,2), array(1,1), array(1,SECADJ_5, 1,SECADJ_1)), /* Intervall larger than 1 sec */ 1,array(array(1), array(1), array(1,SECADJ_1)), ); $ns = count($scalePoints); // Establish major and minor scale units for the date scale $diff = $aEndTime - $aStartTime; if( $diff < 1 ) return false; $done=false; $i=0; while( ! $done ) { if( $diff > $scalePoints[2*$i] ) { // Get major and minor scale for this intervall $scaleSteps = $scalePoints[2*$i+1]; $major = $scaleSteps[0][min($aDensity,count($scaleSteps[0])-1)]; // Try to find out which minor step looks best $minor = $scaleSteps[1][min($aDensity,count($scaleSteps[1])-1)]; if( $aAdjust ) { // Find out how we should align the start and end timestamps $idx = 2*min($aDensity,floor(count($scaleSteps[2])/2)-1); if( $scaleSteps[2][$idx] === 0 ) { // Use date adjustment $adj = $scaleSteps[2][$idx+1]; if( $adj >= 30 ) { $start = $this->AdjStartDate($aStartTime,$adj-30); $end = $this->AdjEndDate($aEndTime,$adj-30); } elseif( $adj >= 20 ) { $start = $this->AdjStartDate($aStartTime,false,$adj-20); $end = $this->AdjEndDate($aEndTime,false,$adj-20); } else { $start = $this->AdjStartDate($aStartTime,false,false,$adj); $end = $this->AdjEndDate($aEndTime,false,false,$adj); // We add 1 second for date adjustment to make sure we end on 00:00 the following day // This makes the final major tick be srawn when we step day-by-day instead of ending // on xx:59:59 which would not draw the final major tick $end++; } } else { // Use time adjustment $adj = $scaleSteps[2][$idx+1]; if( $adj >= 30 ) { $start = $this->AdjStartTime($aStartTime,$adj-30); $end = $this->AdjEndTime($aEndTime,$adj-30); } elseif( $adj >= 20 ) { $start = $this->AdjStartTime($aStartTime,false,$adj-20); $end = $this->AdjEndTime($aEndTime,false,$adj-20); } else { $start = $this->AdjStartTime($aStartTime,false,false,$adj); $end = $this->AdjEndTime($aEndTime,false,false,$adj); } } } // If the overall date span is larger than 1 day ten we show date $format = ''; if( ($end-$start) > SECPERDAY ) { $format = 'Y-m-d '; } // If the major step is less than 1 day we need to whow hours + min if( $major < SECPERDAY ) { $format .= 'H:i'; } // If the major step is less than 1 min we need to show sec if( $major < 60 ) { $format .= ':s'; } $done=true; } ++$i; } return array($start,$end,$major,$minor,$format); } // Overrides the automatic determined date format. Must be a valid date() format string function SetDateFormat($aFormat) { $this->date_format = $aFormat; } function SetDateAlign($aStartAlign,$aEndAlign=false) { if( $aEndAlign === false ) { $aEndAlign=$aStartAlign; } $this->iStartAlign = $aStartAlign; $this->iEndAlign = $aEndAlign; } function SetTimeAlign($aStartAlign,$aEndAlign=false) { if( $aEndAlign === false ) { $aEndAlign=$aStartAlign; } $this->iStartTimeAlign = $aStartAlign; $this->iEndTimeAlign = $aEndAlign; } function AutoScale(&$img,$aStartTime,$aEndTime,$aNumSteps) { if( $aStartTime == $aEndTime ) { // Special case when we only have one data point. // Create a small artifical intervall to do the autoscaling $aStartTime -= 10; $aEndTime += 10; } $done=false; $i=0; while( ! $done && $i < 5) { list($adjstart,$adjend,$maj,$min,$format) = $this->DoDateAutoScale($aStartTime,$aEndTime,$i); $n = floor(($adjend-$adjstart)/$maj); if( $n * 1.7 > $aNumSteps ) { $done=true; } $i++; } /* if( 0 ) { // DEBUG echo " Start =".date("Y-m-d H:i:s",$aStartTime)."<br>"; echo " End =".date("Y-m-d H:i:s",$aEndTime)."<br>"; echo "Adj Start =".date("Y-m-d H:i:s",$adjstart)."<br>"; echo "Adj End =".date("Y-m-d H:i:s",$adjend)."<p>"; echo "Major = $maj s, ".floor($maj/60)."min, ".floor($maj/3600)."h, ".floor($maj/86400)."day<br>"; echo "Min = $min s, ".floor($min/60)."min, ".floor($min/3600)."h, ".floor($min/86400)."day<br>"; echo "Format=$format<p>"; } */ if( $this->iStartTimeAlign !== false && $this->iStartAlign !== false ) { JpGraphError::RaiseL(3001); //('It is only possible to use either SetDateAlign() or SetTimeAlign() but not both'); } if( $this->iStartTimeAlign !== false ) { if( $this->iStartTimeAlign >= 30 ) { $adjstart = $this->AdjStartTime($aStartTime,$this->iStartTimeAlign-30); } elseif( $this->iStartTimeAlign >= 20 ) { $adjstart = $this->AdjStartTime($aStartTime,false,$this->iStartTimeAlign-20); } else { $adjstart = $this->AdjStartTime($aStartTime,false,false,$this->iStartTimeAlign); } } if( $this->iEndTimeAlign !== false ) { if( $this->iEndTimeAlign >= 30 ) { $adjend = $this->AdjEndTime($aEndTime,$this->iEndTimeAlign-30); } elseif( $this->iEndTimeAlign >= 20 ) { $adjend = $this->AdjEndTime($aEndTime,false,$this->iEndTimeAlign-20); } else { $adjend = $this->AdjEndTime($aEndTime,false,false,$this->iEndTimeAlign); } } if( $this->iStartAlign !== false ) { if( $this->iStartAlign >= 30 ) { $adjstart = $this->AdjStartDate($aStartTime,$this->iStartAlign-30); } elseif( $this->iStartAlign >= 20 ) { $adjstart = $this->AdjStartDate($aStartTime,false,$this->iStartAlign-20); } else { $adjstart = $this->AdjStartDate($aStartTime,false,false,$this->iStartAlign); } } if( $this->iEndAlign !== false ) { if( $this->iEndAlign >= 30 ) { $adjend = $this->AdjEndDate($aEndTime,$this->iEndAlign-30); } elseif( $this->iEndAlign >= 20 ) { $adjend = $this->AdjEndDate($aEndTime,false,$this->iEndAlign-20); } else { $adjend = $this->AdjEndDate($aEndTime,false,false,$this->iEndAlign); } } $this->Update($img,$adjstart,$adjend); if( ! $this->ticks->IsSpecified() ) $this->ticks->Set($maj,$min); if( $this->date_format == '' ) $this->ticks->SetLabelDateFormat($format); else $this->ticks->SetLabelDateFormat($this->date_format); } } ?>