2008-11-08 11:00:00 +00:00
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<?php
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/*=======================================================================
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// File: JPGRAPH_UTILS.INC
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2020-11-21 18:54:32 +00:00
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// Description: Collection of non-essential "nice to have" utilities
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2008-11-08 11:00:00 +00:00
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// Created: 2005-11-20
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// Ver: $Id: jpgraph_utils.inc.php 957 2007-12-01 14:00:29Z ljp $
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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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//===================================================
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// CLASS FuncGenerator
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2020-11-21 18:54:32 +00:00
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// Description: Utility class to help generate data for function plots.
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2008-11-08 11:00:00 +00:00
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// The class supports both parametric and regular functions.
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//===================================================
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2020-11-21 18:54:32 +00:00
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class FuncGenerator
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{
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private $iFunc='';
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private $iXFunc='';
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private $iMin;
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private $iMax;
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private $iStepSize;
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public function FuncGenerator($aFunc, $aXFunc='')
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{
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$this->iFunc = $aFunc;
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$this->iXFunc = $aXFunc;
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2008-11-08 11:00:00 +00:00
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}
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2020-11-21 18:54:32 +00:00
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public function E($aXMin, $aXMax, $aSteps=50)
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{
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$this->iMin = $aXMin;
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$this->iMax = $aXMax;
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$this->iStepSize = ($aXMax-$aXMin)/$aSteps;
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if ($this->iXFunc != '') {
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$t = 'for($i='.$aXMin.'; $i<='.$aXMax.'; $i += '.$this->iStepSize.') {$ya[]='.$this->iFunc.';$xa[]='.$this->iXFunc.';}';
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} elseif ($this->iFunc != '') {
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$t = 'for($x='.$aXMin.'; $x<='.$aXMax.'; $x += '.$this->iStepSize.') {$ya[]='.$this->iFunc.';$xa[]=$x;} $x='.$aXMax.';$ya[]='.$this->iFunc.';$xa[]=$x;';
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} else {
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JpGraphError::RaiseL(24001);
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}//('FuncGenerator : No function specified. ');
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@eval($t);
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// If there is an error in the function specifcation this is the only
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// way we can discover that.
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if (empty($xa) || empty($ya)) {
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JpGraphError::RaiseL(24002);
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}//('FuncGenerator : Syntax error in function specification ');
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return array($xa,$ya);
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2008-11-08 11:00:00 +00:00
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}
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}
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//=============================================================================
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// CLASS SymChar
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2020-11-21 18:54:32 +00:00
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// Description: Code values for some commonly used characters that
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2008-11-08 11:00:00 +00:00
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// normally isn't available directly on the keyboard, for example
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// mathematical and greek symbols.
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//=============================================================================
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2020-11-21 18:54:32 +00:00
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class SymChar
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{
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public static function Get($aSymb, $aCapital=false)
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{
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2008-11-08 11:00:00 +00:00
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$iSymbols = array(
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/* Greek */
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2020-11-21 18:54:32 +00:00
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array('alpha','03B1','0391'),
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array('beta','03B2','0392'),
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array('gamma','03B3','0393'),
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array('delta','03B4','0394'),
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array('epsilon','03B5','0395'),
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array('zeta','03B6','0396'),
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array('ny','03B7','0397'),
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array('eta','03B8','0398'),
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array('theta','03B8','0398'),
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array('iota','03B9','0399'),
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array('kappa','03BA','039A'),
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array('lambda','03BB','039B'),
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array('mu','03BC','039C'),
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array('nu','03BD','039D'),
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array('xi','03BE','039E'),
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array('omicron','03BF','039F'),
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array('pi','03C0','03A0'),
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array('rho','03C1','03A1'),
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array('sigma','03C3','03A3'),
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array('tau','03C4','03A4'),
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array('upsilon','03C5','03A5'),
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array('phi','03C6','03A6'),
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array('chi','03C7','03A7'),
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array('psi','03C8','03A8'),
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array('omega','03C9','03A9'),
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2008-11-08 11:00:00 +00:00
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/* Money */
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2020-11-21 18:54:32 +00:00
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array('euro','20AC'),
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array('yen','00A5'),
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array('pound','20A4'),
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2008-11-08 11:00:00 +00:00
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/* Math */
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2020-11-21 18:54:32 +00:00
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array('approx','2248'),
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array('neq','2260'),
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array('not','2310'),
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array('def','2261'),
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array('inf','221E'),
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array('sqrt','221A'),
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array('int','222B'),
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2008-11-08 11:00:00 +00:00
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/* Misc */
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2020-11-21 18:54:32 +00:00
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array('copy','00A9'),
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array('para','00A7'),
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array('tm','2122'), /* Trademark symbol */
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array('rtm','00AE') /* Registered trademark */
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2008-11-08 11:00:00 +00:00
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);
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2020-11-21 18:54:32 +00:00
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$n = count($iSymbols);
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$i=0;
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$found = false;
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$aSymb = strtolower($aSymb);
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while ($i < $n && !$found) {
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$found = $aSymb === $iSymbols[$i++][0];
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}
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if ($found) {
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$ca = $iSymbols[--$i];
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if ($aCapital && count($ca)==3) {
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$s = $ca[2];
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} else {
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$s = $ca[1];
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}
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return sprintf('&#%04d;', hexdec($s));
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} else {
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return '';
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}
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2008-11-08 11:00:00 +00:00
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}
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}
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//=============================================================================
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// CLASS DateScaleUtils
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// Description: Help to create a manual date scale
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//=============================================================================
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2020-11-21 18:54:32 +00:00
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DEFINE('DSUTILS_MONTH', 1); // Major and minor ticks on a monthly basis
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DEFINE('DSUTILS_MONTH1', 1); // Major and minor ticks on a monthly basis
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DEFINE('DSUTILS_MONTH2', 2); // Major ticks on a bi-monthly basis
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DEFINE('DSUTILS_MONTH3', 3); // Major icks on a tri-monthly basis
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DEFINE('DSUTILS_MONTH6', 4); // Major on a six-monthly basis
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DEFINE('DSUTILS_WEEK1', 5); // Major ticks on a weekly basis
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DEFINE('DSUTILS_WEEK2', 6); // Major ticks on a bi-weekly basis
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DEFINE('DSUTILS_WEEK4', 7); // Major ticks on a quod-weekly basis
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DEFINE('DSUTILS_DAY1', 8); // Major ticks on a daily basis
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DEFINE('DSUTILS_DAY2', 9); // Major ticks on a bi-daily basis
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DEFINE('DSUTILS_DAY4', 10); // Major ticks on a qoud-daily basis
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DEFINE('DSUTILS_YEAR1', 11); // Major ticks on a yearly basis
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DEFINE('DSUTILS_YEAR2', 12); // Major ticks on a bi-yearly basis
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DEFINE('DSUTILS_YEAR5', 13); // Major ticks on a five-yearly basis
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class DateScaleUtils
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{
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public $iMin=0;
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public $iMax=0;
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private $starthour;
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private $startmonth;
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private $startday;
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private $startyear;
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private $endmonth;
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private $endyear;
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private $endday;
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private $tickPositions=array();
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private $minTickPositions=array();
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2008-11-08 11:00:00 +00:00
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private $iUseWeeks = true;
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2020-11-21 18:54:32 +00:00
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public function UseWeekFormat($aFlg)
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{
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$this->iUseWeeks = $aFlg;
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2008-11-08 11:00:00 +00:00
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}
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2020-11-21 18:54:32 +00:00
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public function doYearly($aType, $aMinor=false)
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{
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$i=0;
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$j=0;
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$m = $this->startmonth;
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$y = $this->startyear;
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if ($this->startday == 1) {
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$this->tickPositions[$i++] = mktime(0, 0, 0, $m, 1, $y);
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}
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++$m;
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switch ($aType) {
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case DSUTILS_YEAR1:
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for ($y=$this->startyear; $y <= $this->endyear; ++$y) {
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if ($aMinor) {
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while ($m <= 12) {
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if (!($y == $this->endyear && $m > $this->endmonth)) {
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$this->minTickPositions[$j++] = mktime(0, 0, 0, $m, 1, $y);
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}
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++$m;
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}
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$m=1;
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}
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$this->tickPositions[$i++] = mktime(0, 0, 0, 1, 1, $y);
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}
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break;
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case DSUTILS_YEAR2:
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$y=$this->startyear;
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while ($y <= $this->endyear) {
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$this->tickPositions[$i++] = mktime(0, 0, 0, 1, 1, $y);
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for ($k=0; $k < 1; ++$k) {
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++$y;
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if ($aMinor) {
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$this->minTickPositions[$j++] = mktime(0, 0, 0, 1, 1, $y);
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}
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}
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++$y;
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}
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break;
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case DSUTILS_YEAR5:
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$y=$this->startyear;
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while ($y <= $this->endyear) {
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$this->tickPositions[$i++] = mktime(0, 0, 0, 1, 1, $y);
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for ($k=0; $k < 4; ++$k) {
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++$y;
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if ($aMinor) {
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$this->minTickPositions[$j++] = mktime(0, 0, 0, 1, 1, $y);
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}
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}
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++$y;
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}
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break;
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2008-11-08 11:00:00 +00:00
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}
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}
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2020-11-21 18:54:32 +00:00
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public function doDaily($aType, $aMinor=false)
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{
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$m = $this->startmonth;
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$y = $this->startyear;
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$d = $this->startday;
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$h = $this->starthour;
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$i=0;
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$j=0;
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if ($h == 0) {
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$this->tickPositions[$i++] = mktime(0, 0, 0, $m, $d, $y);
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$t = mktime(0, 0, 0, $m, $d, $y);
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} else {
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$t = mktime(0, 0, 0, $m, $d, $y);
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}
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switch ($aType) {
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case DSUTILS_DAY1:
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while ($t <= $this->iMax) {
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$t += 3600*24;
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$this->tickPositions[$i++] = $t;
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}
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break;
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case DSUTILS_DAY2:
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while ($t <= $this->iMax) {
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$t += 3600*24;
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if ($aMinor) {
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$this->minTickPositions[$j++] = $t;
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}
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$t += 3600*24;
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$this->tickPositions[$i++] = $t;
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}
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break;
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case DSUTILS_DAY4:
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while ($t <= $this->iMax) {
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for ($k=0; $k < 3; ++$k) {
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$t += 3600*24;
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if ($aMinor) {
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$this->minTickPositions[$j++] = $t;
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}
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}
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$t += 3600*24;
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$this->tickPositions[$i++] = $t;
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}
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break;
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}
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2008-11-08 11:00:00 +00:00
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}
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2020-11-21 18:54:32 +00:00
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public function doWeekly($aType, $aMinor=false)
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{
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$hpd = 3600*24;
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$hpw = 3600*24*7;
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// Find out week number of min date
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$thursday = $this->iMin + $hpd * (3 - (date('w', $this->iMin) + 6) % 7);
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$week = 1 + (date('z', $thursday) - (11 - date('w', mktime(0, 0, 0, 1, 1, date('Y', $thursday)))) % 7) / 7;
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$daynumber = date('w', $this->iMin);
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if ($daynumber == 0) {
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$daynumber = 7;
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}
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$m = $this->startmonth;
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$y = $this->startyear;
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$d = $this->startday;
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$i=0;
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$j=0;
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// The assumption is that the weeks start on Monday. If the first day
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// is later in the week then the first week tick has to be on the following
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// week.
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if ($daynumber == 1) {
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$this->tickPositions[$i++] = mktime(0, 0, 0, $m, $d, $y);
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$t = mktime(0, 0, 0, $m, $d, $y) + $hpw;
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} else {
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$t = mktime(0, 0, 0, $m, $d, $y) + $hpd*(8-$daynumber);
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}
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switch ($aType) {
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case DSUTILS_WEEK1:
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$cnt=0;
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break;
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case DSUTILS_WEEK2:
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$cnt=1;
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break;
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case DSUTILS_WEEK4:
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$cnt=3;
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break;
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}
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while ($t <= $this->iMax) {
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$this->tickPositions[$i++] = $t;
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for ($k=0; $k < $cnt; ++$k) {
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$t += $hpw;
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if ($aMinor) {
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$this->minTickPositions[$j++] = $t;
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}
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}
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$t += $hpw;
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}
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2008-11-08 11:00:00 +00:00
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}
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2020-11-21 18:54:32 +00:00
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public function doMonthly($aType, $aMinor=false)
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{
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$monthcount=0;
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$m = $this->startmonth;
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$y = $this->startyear;
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$i=0;
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$j=0;
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// Skip the first month label if it is before the startdate
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if ($this->startday == 1) {
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$this->tickPositions[$i++] = mktime(0, 0, 0, $m, 1, $y);
|
|
|
|
$monthcount=1;
|
|
|
|
}
|
|
|
|
if ($aType == 1) {
|
|
|
|
if ($this->startday < 15) {
|
|
|
|
$this->minTickPositions[$j++] = mktime(0, 0, 0, $m, 15, $y);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
++$m;
|
|
|
|
|
|
|
|
// Loop through all the years included in the scale
|
|
|
|
for ($y=$this->startyear; $y <= $this->endyear; ++$y) {
|
|
|
|
// Loop through all the months. There are three cases to consider:
|
|
|
|
// 1. We are in the first year and must start with the startmonth
|
|
|
|
// 2. We are in the end year and we must stop at last month of the scale
|
|
|
|
// 3. A year in between where we run through all the 12 months
|
|
|
|
$stopmonth = $y == $this->endyear ? $this->endmonth : 12;
|
|
|
|
while ($m <= $stopmonth) {
|
|
|
|
switch ($aType) {
|
|
|
|
case DSUTILS_MONTH1:
|
|
|
|
// Set minor tick at the middle of the month
|
|
|
|
if ($aMinor) {
|
|
|
|
if ($m <= $stopmonth) {
|
|
|
|
if (!($y==$this->endyear && $m==$stopmonth && $this->endday < 15)) {
|
|
|
|
$this->minTickPositions[$j++] = mktime(0, 0, 0, $m, 15, $y);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Major at month
|
|
|
|
// Get timestamp of first hour of first day in each month
|
|
|
|
$this->tickPositions[$i++] = mktime(0, 0, 0, $m, 1, $y);
|
|
|
|
|
|
|
|
break;
|
|
|
|
case DSUTILS_MONTH2:
|
|
|
|
if ($aMinor) {
|
|
|
|
// Set minor tick at start of each month
|
|
|
|
$this->minTickPositions[$j++] = mktime(0, 0, 0, $m, 1, $y);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Major at every second month
|
|
|
|
// Get timestamp of first hour of first day in each month
|
|
|
|
if ($monthcount % 2 == 0) {
|
|
|
|
$this->tickPositions[$i++] = mktime(0, 0, 0, $m, 1, $y);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case DSUTILS_MONTH3:
|
|
|
|
if ($aMinor) {
|
|
|
|
// Set minor tick at start of each month
|
|
|
|
$this->minTickPositions[$j++] = mktime(0, 0, 0, $m, 1, $y);
|
|
|
|
}
|
|
|
|
// Major at every third month
|
|
|
|
// Get timestamp of first hour of first day in each month
|
|
|
|
if ($monthcount % 3 == 0) {
|
|
|
|
$this->tickPositions[$i++] = mktime(0, 0, 0, $m, 1, $y);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case DSUTILS_MONTH6:
|
|
|
|
if ($aMinor) {
|
|
|
|
// Set minor tick at start of each month
|
|
|
|
$this->minTickPositions[$j++] = mktime(0, 0, 0, $m, 1, $y);
|
|
|
|
}
|
|
|
|
// Major at every third month
|
|
|
|
// Get timestamp of first hour of first day in each month
|
|
|
|
if ($monthcount % 6 == 0) {
|
|
|
|
$this->tickPositions[$i++] = mktime(0, 0, 0, $m, 1, $y);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
++$m;
|
|
|
|
++$monthcount;
|
|
|
|
}
|
|
|
|
$m=1;
|
|
|
|
}
|
|
|
|
|
|
|
|
// For the case where all dates are within the same month
|
|
|
|
// we want to make sure we have at least two ticks on the scale
|
|
|
|
// since the scale want work properly otherwise
|
|
|
|
if ($this->startmonth == $this->endmonth && $this->startyear == $this->endyear && $aType==1) {
|
|
|
|
$this->tickPositions[$i++] = mktime(0, 0, 0, $this->startmonth + 1, 1, $this->startyear);
|
|
|
|
}
|
|
|
|
|
|
|
|
return array($this->tickPositions,$this->minTickPositions);
|
2008-11-08 11:00:00 +00:00
|
|
|
}
|
|
|
|
|
2020-11-21 18:54:32 +00:00
|
|
|
public function GetTicks($aData, $aType=1, $aMinor=false, $aEndPoints=false)
|
|
|
|
{
|
|
|
|
$n = count($aData);
|
|
|
|
return $this->GetTicksFromMinMax($aData[0], $aData[$n-1], $aType, $aMinor, $aEndPoints);
|
2008-11-08 11:00:00 +00:00
|
|
|
}
|
|
|
|
|
2020-11-21 18:54:32 +00:00
|
|
|
public function GetAutoTicks($aMin, $aMax, $aMaxTicks=10, $aMinor=false)
|
|
|
|
{
|
|
|
|
$diff = $aMax - $aMin;
|
|
|
|
$spd = 3600*24;
|
|
|
|
$spw = $spd*7;
|
|
|
|
$spm = $spd*30;
|
|
|
|
$spy = $spd*352;
|
|
|
|
|
|
|
|
if ($this->iUseWeeks) {
|
|
|
|
$w = 'W';
|
|
|
|
} else {
|
|
|
|
$w = 'd M';
|
|
|
|
}
|
|
|
|
|
|
|
|
// Decision table for suitable scales
|
|
|
|
// First value: Main decision point
|
|
|
|
// Second value: Array of formatting depending on divisor for wanted max number of ticks. <divisor><formatting><format-string>,..
|
|
|
|
$tt = array(
|
|
|
|
array($spw, array(1,DSUTILS_DAY1,'d M',2,DSUTILS_DAY2,'d M',-1,DSUTILS_DAY4,'d M')),
|
|
|
|
array($spm, array(1,DSUTILS_DAY1,'d M',2,DSUTILS_DAY2,'d M',4,DSUTILS_DAY4,'d M',
|
|
|
|
7,DSUTILS_WEEK1,$w,-1,DSUTILS_WEEK2,$w)),
|
|
|
|
array($spy, array(1,DSUTILS_DAY1,'d M',2,DSUTILS_DAY2,'d M',4,DSUTILS_DAY4,'d M',
|
|
|
|
7,DSUTILS_WEEK1,$w,14,DSUTILS_WEEK2,$w,
|
|
|
|
30,DSUTILS_MONTH1,'M',60,DSUTILS_MONTH2,'M',-1,DSUTILS_MONTH3,'M')),
|
|
|
|
array(-1, array(30,DSUTILS_MONTH1,'M-Y',60,DSUTILS_MONTH2,'M-Y',90,DSUTILS_MONTH3,'M-Y',
|
|
|
|
180,DSUTILS_MONTH6,'M-Y',352,DSUTILS_YEAR1,'Y',704,DSUTILS_YEAR2,'Y',-1,DSUTILS_YEAR5,'Y')));
|
|
|
|
|
|
|
|
$ntt = count($tt);
|
|
|
|
$nd = floor($diff/$spd);
|
|
|
|
for ($i=0; $i < $ntt; ++$i) {
|
|
|
|
if ($diff <= $tt[$i][0] || $i==$ntt-1) {
|
|
|
|
$t = $tt[$i][1];
|
|
|
|
$n = count($t)/3;
|
|
|
|
for ($j=0; $j < $n; ++$j) {
|
|
|
|
if ($nd/$t[3*$j] <= $aMaxTicks || $j==$n-1) {
|
|
|
|
$type = $t[3*$j+1];
|
|
|
|
$fs = $t[3*$j+2];
|
|
|
|
list($tickPositions, $minTickPositions) = $this->GetTicksFromMinMax($aMin, $aMax, $type, $aMinor);
|
|
|
|
return array($fs,$tickPositions,$minTickPositions,$type);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2008-11-08 11:00:00 +00:00
|
|
|
}
|
|
|
|
|
2020-11-21 18:54:32 +00:00
|
|
|
public function GetTicksFromMinMax($aMin, $aMax, $aType, $aMinor=false, $aEndPoints=false)
|
|
|
|
{
|
|
|
|
$this->starthour = date('G', $aMin);
|
|
|
|
$this->startmonth = date('n', $aMin);
|
|
|
|
$this->startday = date('j', $aMin);
|
|
|
|
$this->startyear = date('Y', $aMin);
|
|
|
|
$this->endmonth = date('n', $aMax);
|
|
|
|
$this->endyear = date('Y', $aMax);
|
|
|
|
$this->endday = date('j', $aMax);
|
|
|
|
$this->iMin = $aMin;
|
|
|
|
$this->iMax = $aMax;
|
|
|
|
|
|
|
|
if ($aType <= DSUTILS_MONTH6) {
|
|
|
|
$this->doMonthly($aType, $aMinor);
|
|
|
|
} elseif ($aType <= DSUTILS_WEEK4) {
|
|
|
|
$this->doWeekly($aType, $aMinor);
|
|
|
|
} elseif ($aType <= DSUTILS_DAY4) {
|
|
|
|
$this->doDaily($aType, $aMinor);
|
|
|
|
} elseif ($aType <= DSUTILS_YEAR5) {
|
|
|
|
$this->doYearly($aType, $aMinor);
|
|
|
|
} else {
|
|
|
|
JpGraphError::RaiseL(24003);
|
|
|
|
}
|
|
|
|
// put a label at the very left data pos
|
|
|
|
if ($aEndPoints) {
|
|
|
|
$tickPositions[$i++] = $aData[0];
|
|
|
|
}
|
|
|
|
|
|
|
|
// put a label at the very right data pos
|
|
|
|
if ($aEndPoints) {
|
|
|
|
$tickPositions[$i] = $aData[$n-1];
|
|
|
|
}
|
|
|
|
|
|
|
|
return array($this->tickPositions,$this->minTickPositions);
|
|
|
|
}
|
2008-11-08 11:00:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
//=============================================================================
|
|
|
|
// Class ReadFileData
|
|
|
|
//=============================================================================
|
2020-11-21 18:54:32 +00:00
|
|
|
class ReadFileData
|
|
|
|
{
|
2008-11-08 11:00:00 +00:00
|
|
|
|
|
|
|
//----------------------------------------------------------------------------
|
|
|
|
// Desciption:
|
2020-11-21 18:54:32 +00:00
|
|
|
// Read numeric data from a file.
|
|
|
|
// Each value should be separated by either a new line or by a specified
|
2008-11-08 11:00:00 +00:00
|
|
|
// separator character (default is ',').
|
2020-11-21 18:54:32 +00:00
|
|
|
// Before returning the data each value is converted to a proper float
|
|
|
|
// value. The routine is robust in the sense that non numeric data in the
|
2008-11-08 11:00:00 +00:00
|
|
|
// file will be discarded.
|
|
|
|
//
|
2020-11-21 18:54:32 +00:00
|
|
|
// Returns:
|
2008-11-08 11:00:00 +00:00
|
|
|
// The number of data values read on success, FALSE on failure
|
|
|
|
//----------------------------------------------------------------------------
|
2020-11-21 18:54:32 +00:00
|
|
|
public static function FromCSV($aFile, &$aData, $aSepChar=',', $aMaxLineLength=1024)
|
|
|
|
{
|
|
|
|
$rh = fopen($aFile, 'r');
|
|
|
|
if ($rh === false) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
$tmp = array();
|
|
|
|
$lineofdata = fgetcsv($rh, 1000, ',');
|
|
|
|
while ($lineofdata !== false) {
|
|
|
|
$tmp = array_merge($tmp, $lineofdata);
|
|
|
|
$lineofdata = fgetcsv($rh, $aMaxLineLength, $aSepChar);
|
|
|
|
}
|
|
|
|
fclose($rh);
|
|
|
|
|
|
|
|
// Now make sure that all data is numeric. By default
|
|
|
|
// all data is read as strings
|
|
|
|
$n = count($tmp);
|
|
|
|
$aData = array();
|
|
|
|
$cnt=0;
|
|
|
|
for ($i=0; $i < $n; ++$i) {
|
|
|
|
if ($tmp[$i] !== "") {
|
|
|
|
$aData[$cnt++] = floatval($tmp[$i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return $cnt;
|
2008-11-08 11:00:00 +00:00
|
|
|
}
|
|
|
|
}
|