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