1 | <?php |
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2 | /*======================================================================= |
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3 | // File: JPGRAPH_DATE.PHP |
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4 | // Description: Classes to handle Date scaling |
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5 | // Created: 2005-05-02 |
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6 | // Ver: $Id: jpgraph_date.php 1106 2009-02-22 20:16:35Z ljp $ |
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7 | // |
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8 | // Copyright (c) Asial Corporation. All rights reserved. |
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9 | //======================================================================== |
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10 | */ |
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11 | |
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12 | define('HOURADJ_1',0+30); |
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13 | define('HOURADJ_2',1+30); |
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14 | define('HOURADJ_3',2+30); |
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15 | define('HOURADJ_4',3+30); |
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16 | define('HOURADJ_6',4+30); |
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17 | define('HOURADJ_12',5+30); |
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18 | |
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19 | define('MINADJ_1',0+20); |
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20 | define('MINADJ_5',1+20); |
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21 | define('MINADJ_10',2+20); |
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22 | define('MINADJ_15',3+20); |
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23 | define('MINADJ_30',4+20); |
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24 | |
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25 | define('SECADJ_1',0); |
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26 | define('SECADJ_5',1); |
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27 | define('SECADJ_10',2); |
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28 | define('SECADJ_15',3); |
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29 | define('SECADJ_30',4); |
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30 | |
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31 | |
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32 | define('YEARADJ_1',0+30); |
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33 | define('YEARADJ_2',1+30); |
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34 | define('YEARADJ_5',2+30); |
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35 | |
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36 | define('MONTHADJ_1',0+20); |
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37 | define('MONTHADJ_6',1+20); |
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38 | |
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39 | define('DAYADJ_1',0); |
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40 | define('DAYADJ_WEEK',1); |
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41 | define('DAYADJ_7',1); |
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42 | |
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43 | define('SECPERYEAR',31536000); |
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44 | define('SECPERDAY',86400); |
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45 | define('SECPERHOUR',3600); |
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46 | define('SECPERMIN',60); |
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47 | |
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48 | |
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49 | class DateScale extends LinearScale { |
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50 | private $date_format = ''; |
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51 | private $iStartAlign = false, $iEndAlign = false; |
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52 | private $iStartTimeAlign = false, $iEndTimeAlign = false; |
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53 | |
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54 | //--------------- |
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55 | // CONSTRUCTOR |
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56 | function __construct($aMin=0,$aMax=0,$aType='x') { |
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57 | assert($aType=="x"); |
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58 | assert($aMin<=$aMax); |
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59 | |
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60 | $this->type=$aType; |
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61 | $this->scale=array($aMin,$aMax); |
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62 | $this->world_size=$aMax-$aMin; |
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63 | $this->ticks = new LinearTicks(); |
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64 | $this->intscale=true; |
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65 | } |
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66 | |
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67 | |
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68 | //------------------------------------------------------------------------------------------ |
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69 | // Utility Function AdjDate() |
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70 | // Description: Will round a given time stamp to an even year, month or day |
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71 | // argument. |
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72 | //------------------------------------------------------------------------------------------ |
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73 | |
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74 | function AdjDate($aTime,$aRound=0,$aYearType=false,$aMonthType=false,$aDayType=false) { |
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75 | $y = (int)date('Y',$aTime); $m = (int)date('m',$aTime); $d = (int)date('d',$aTime); |
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76 | $h=0;$i=0;$s=0; |
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77 | if( $aYearType !== false ) { |
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78 | $yearAdj = array(0=>1, 1=>2, 2=>5); |
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79 | if( $aRound == 0 ) { |
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80 | $y = floor($y/$yearAdj[$aYearType])*$yearAdj[$aYearType]; |
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81 | } |
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82 | else { |
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83 | ++$y; |
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84 | $y = ceil($y/$yearAdj[$aYearType])*$yearAdj[$aYearType]; |
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85 | } |
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86 | $m=1;$d=1; |
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87 | } |
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88 | elseif( $aMonthType !== false ) { |
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89 | $monthAdj = array(0=>1, 1=>6); |
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90 | if( $aRound == 0 ) { |
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91 | $m = floor($m/$monthAdj[$aMonthType])*$monthAdj[$aMonthType]; |
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92 | $d=1; |
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93 | } |
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94 | else { |
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95 | ++$m; |
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96 | $m = ceil($m/$monthAdj[$aMonthType])*$monthAdj[$aMonthType]; |
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97 | $d=1; |
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98 | } |
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99 | } |
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100 | elseif( $aDayType !== false ) { |
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101 | if( $aDayType == 0 ) { |
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102 | if( $aRound == 1 ) { |
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103 | //++$d; |
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104 | $h=23;$i=59;$s=59; |
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105 | } |
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106 | } |
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107 | else { |
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108 | // Adjust to an even week boundary. |
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109 | $w = (int)date('w',$aTime); // Day of week 0=Sun, 6=Sat |
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110 | if( true ) { // Adjust to start on Mon |
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111 | if( $w==0 ) $w=6; |
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112 | else --$w; |
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113 | } |
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114 | if( $aRound == 0 ) { |
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115 | $d -= $w; |
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116 | } |
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117 | else { |
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118 | $d += (7-$w); |
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119 | $h=23;$i=59;$s=59; |
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120 | } |
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121 | } |
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122 | } |
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123 | return mktime($h,$i,$s,$m,$d,$y); |
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124 | |
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125 | } |
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126 | |
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127 | //------------------------------------------------------------------------------------------ |
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128 | // Wrapper for AdjDate that will round a timestamp to an even date rounding |
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129 | // it downwards. |
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130 | //------------------------------------------------------------------------------------------ |
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131 | function AdjStartDate($aTime,$aYearType=false,$aMonthType=false,$aDayType=false) { |
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132 | return $this->AdjDate($aTime,0,$aYearType,$aMonthType,$aDayType); |
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133 | } |
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134 | |
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135 | //------------------------------------------------------------------------------------------ |
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136 | // Wrapper for AdjDate that will round a timestamp to an even date rounding |
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137 | // it upwards |
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138 | //------------------------------------------------------------------------------------------ |
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139 | function AdjEndDate($aTime,$aYearType=false,$aMonthType=false,$aDayType=false) { |
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140 | return $this->AdjDate($aTime,1,$aYearType,$aMonthType,$aDayType); |
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141 | } |
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142 | |
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143 | //------------------------------------------------------------------------------------------ |
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144 | // Utility Function AdjTime() |
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145 | // Description: Will round a given time stamp to an even time according to |
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146 | // argument. |
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147 | //------------------------------------------------------------------------------------------ |
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148 | |
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149 | function AdjTime($aTime,$aRound=0,$aHourType=false,$aMinType=false,$aSecType=false) { |
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150 | $y = (int)date('Y',$aTime); $m = (int)date('m',$aTime); $d = (int)date('d',$aTime); |
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151 | $h = (int)date('H',$aTime); $i = (int)date('i',$aTime); $s = (int)date('s',$aTime); |
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152 | if( $aHourType !== false ) { |
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153 | $aHourType %= 6; |
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154 | $hourAdj = array(0=>1, 1=>2, 2=>3, 3=>4, 4=>6, 5=>12); |
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155 | if( $aRound == 0 ) |
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156 | $h = floor($h/$hourAdj[$aHourType])*$hourAdj[$aHourType]; |
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157 | else { |
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158 | if( ($h % $hourAdj[$aHourType]==0) && ($i > 0 || $s > 0) ) { |
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159 | $h++; |
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160 | } |
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161 | $h = ceil($h/$hourAdj[$aHourType])*$hourAdj[$aHourType]; |
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162 | if( $h >= 24 ) { |
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163 | $aTime += 86400; |
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164 | $y = (int)date('Y',$aTime); $m = (int)date('m',$aTime); $d = (int)date('d',$aTime); |
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165 | $h -= 24; |
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166 | } |
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167 | } |
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168 | $i=0;$s=0; |
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169 | } |
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170 | elseif( $aMinType !== false ) { |
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171 | $aMinType %= 5; |
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172 | $minAdj = array(0=>1, 1=>5, 2=>10, 3=>15, 4=>30); |
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173 | if( $aRound == 0 ) { |
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174 | $i = floor($i/$minAdj[$aMinType])*$minAdj[$aMinType]; |
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175 | } |
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176 | else { |
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177 | if( ($i % $minAdj[$aMinType]==0) && $s > 0 ) { |
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178 | $i++; |
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179 | } |
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180 | $i = ceil($i/$minAdj[$aMinType])*$minAdj[$aMinType]; |
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181 | if( $i >= 60) { |
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182 | $aTime += 3600; |
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183 | $y = (int)date('Y',$aTime); $m = (int)date('m',$aTime); $d = (int)date('d',$aTime); |
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184 | $h = (int)date('H',$aTime); $i = 0; |
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185 | } |
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186 | } |
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187 | $s=0; |
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188 | } |
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189 | elseif( $aSecType !== false ) { |
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190 | $aSecType %= 5; |
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191 | $secAdj = array(0=>1, 1=>5, 2=>10, 3=>15, 4=>30); |
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192 | if( $aRound == 0 ) { |
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193 | $s = floor($s/$secAdj[$aSecType])*$secAdj[$aSecType]; |
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194 | } |
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195 | else { |
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196 | $s = ceil($s/$secAdj[$aSecType]*1.0)*$secAdj[$aSecType]; |
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197 | if( $s >= 60) { |
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198 | $s=0; |
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199 | $aTime += 60; |
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200 | $y = (int)date('Y',$aTime); $m = (int)date('m',$aTime); $d = (int)date('d',$aTime); |
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201 | $h = (int)date('H',$aTime); $i = (int)date('i',$aTime); |
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202 | } |
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203 | } |
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204 | } |
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205 | return mktime($h,$i,$s,$m,$d,$y); |
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206 | } |
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207 | |
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208 | //------------------------------------------------------------------------------------------ |
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209 | // Wrapper for AdjTime that will round a timestamp to an even time rounding |
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210 | // it downwards. |
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211 | // Example: AdjStartTime(mktime(18,27,13,2,22,2005),false,2) => 18:20 |
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212 | //------------------------------------------------------------------------------------------ |
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213 | function AdjStartTime($aTime,$aHourType=false,$aMinType=false,$aSecType=false) { |
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214 | return $this->AdjTime($aTime,0,$aHourType,$aMinType,$aSecType); |
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215 | } |
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216 | |
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217 | //------------------------------------------------------------------------------------------ |
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218 | // Wrapper for AdjTime that will round a timestamp to an even time rounding |
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219 | // it upwards |
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220 | // Example: AdjEndTime(mktime(18,27,13,2,22,2005),false,2) => 18:30 |
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221 | //------------------------------------------------------------------------------------------ |
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222 | function AdjEndTime($aTime,$aHourType=false,$aMinType=false,$aSecType=false) { |
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223 | return $this->AdjTime($aTime,1,$aHourType,$aMinType,$aSecType); |
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224 | } |
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225 | |
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226 | //------------------------------------------------------------------------------------------ |
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227 | // DateAutoScale |
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228 | // Autoscale a date axis given start and end time |
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229 | // Returns an array ($start,$end,$major,$minor,$format) |
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230 | //------------------------------------------------------------------------------------------ |
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231 | function DoDateAutoScale($aStartTime,$aEndTime,$aDensity=0,$aAdjust=true) { |
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232 | // Format of array |
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233 | // array ( Decision point, array( array( Major-scale-step-array ), |
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234 | // array( Minor-scale-step-array ), |
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235 | // array( 0=date-adjust, 1=time-adjust, adjustment-alignment) ) |
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236 | // |
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237 | $scalePoints = |
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238 | array( |
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239 | /* Intervall larger than 10 years */ |
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240 | SECPERYEAR*10,array(array(SECPERYEAR*5,SECPERYEAR*2), |
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241 | array(SECPERYEAR), |
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242 | array(0,YEARADJ_1, 0,YEARADJ_1) ), |
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243 | |
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244 | /* Intervall larger than 2 years */ |
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245 | SECPERYEAR*2,array(array(SECPERYEAR),array(SECPERYEAR), |
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246 | array(0,YEARADJ_1) ), |
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247 | |
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248 | /* Intervall larger than 90 days (approx 3 month) */ |
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249 | SECPERDAY*90,array(array(SECPERDAY*30,SECPERDAY*14,SECPERDAY*7,SECPERDAY), |
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250 | array(SECPERDAY*5,SECPERDAY*7,SECPERDAY,SECPERDAY), |
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251 | array(0,MONTHADJ_1, 0,DAYADJ_WEEK, 0,DAYADJ_1, 0,DAYADJ_1)), |
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252 | |
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253 | /* Intervall larger than 30 days (approx 1 month) */ |
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254 | SECPERDAY*30,array(array(SECPERDAY*14,SECPERDAY*7,SECPERDAY*2, SECPERDAY), |
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255 | array(SECPERDAY,SECPERDAY,SECPERDAY,SECPERDAY), |
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256 | array(0,DAYADJ_WEEK, 0,DAYADJ_1, 0,DAYADJ_1, 0,DAYADJ_1)), |
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257 | |
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258 | /* Intervall larger than 7 days */ |
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259 | SECPERDAY*7,array(array(SECPERDAY,SECPERHOUR*12,SECPERHOUR*6,SECPERHOUR*2), |
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260 | array(SECPERHOUR*6,SECPERHOUR*3,SECPERHOUR,SECPERHOUR), |
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261 | array(0,DAYADJ_1, 1,HOURADJ_12, 1,HOURADJ_6, 1,HOURADJ_1)), |
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262 | |
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263 | /* Intervall larger than 1 day */ |
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264 | SECPERDAY,array(array(SECPERDAY,SECPERHOUR*12,SECPERHOUR*6,SECPERHOUR*2,SECPERHOUR), |
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265 | array(SECPERHOUR*6,SECPERHOUR*2,SECPERHOUR,SECPERHOUR,SECPERHOUR), |
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266 | array(1,HOURADJ_12, 1,HOURADJ_6, 1,HOURADJ_1, 1,HOURADJ_1)), |
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267 | |
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268 | /* Intervall larger than 12 hours */ |
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269 | SECPERHOUR*12,array(array(SECPERHOUR*2,SECPERHOUR,SECPERMIN*30,900,600), |
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270 | array(1800,1800,900,300,300), |
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271 | array(1,HOURADJ_1, 1,MINADJ_30, 1,MINADJ_15, 1,MINADJ_10, 1,MINADJ_5) ), |
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272 | |
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273 | /* Intervall larger than 2 hours */ |
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274 | SECPERHOUR*2,array(array(SECPERHOUR,SECPERMIN*30,900,600,300), |
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275 | array(1800,900,300,120,60), |
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276 | array(1,HOURADJ_1, 1,MINADJ_30, 1,MINADJ_15, 1,MINADJ_10, 1,MINADJ_5) ), |
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277 | |
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278 | /* Intervall larger than 1 hours */ |
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279 | SECPERHOUR,array(array(SECPERMIN*30,900,600,300),array(900,300,120,60), |
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280 | array(1,MINADJ_30, 1,MINADJ_15, 1,MINADJ_10, 1,MINADJ_5) ), |
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281 | |
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282 | /* Intervall larger than 30 min */ |
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283 | SECPERMIN*30,array(array(SECPERMIN*15,SECPERMIN*10,SECPERMIN*5,SECPERMIN), |
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284 | array(300,300,60,10), |
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285 | array(1,MINADJ_15, 1,MINADJ_10, 1,MINADJ_5, 1,MINADJ_1)), |
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286 | |
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287 | /* Intervall larger than 1 min */ |
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288 | SECPERMIN,array(array(SECPERMIN,15,10,5), |
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289 | array(15,5,2,1), |
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290 | array(1,MINADJ_1, 1,SECADJ_15, 1,SECADJ_10, 1,SECADJ_5)), |
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291 | |
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292 | /* Intervall larger than 10 sec */ |
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293 | 10,array(array(5,2), |
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294 | array(1,1), |
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295 | array(1,SECADJ_5, 1,SECADJ_1)), |
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296 | |
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297 | /* Intervall larger than 1 sec */ |
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298 | 1,array(array(1), |
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299 | array(1), |
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300 | array(1,SECADJ_1)), |
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301 | ); |
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302 | |
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303 | $ns = count($scalePoints); |
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304 | // Establish major and minor scale units for the date scale |
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305 | $diff = $aEndTime - $aStartTime; |
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306 | if( $diff < 1 ) return false; |
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307 | $done=false; |
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308 | $i=0; |
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309 | while( ! $done ) { |
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310 | if( $diff > $scalePoints[2*$i] ) { |
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311 | // Get major and minor scale for this intervall |
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312 | $scaleSteps = $scalePoints[2*$i+1]; |
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313 | $major = $scaleSteps[0][min($aDensity,count($scaleSteps[0])-1)]; |
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314 | // Try to find out which minor step looks best |
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315 | $minor = $scaleSteps[1][min($aDensity,count($scaleSteps[1])-1)]; |
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316 | if( $aAdjust ) { |
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317 | // Find out how we should align the start and end timestamps |
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318 | $idx = 2*min($aDensity,floor(count($scaleSteps[2])/2)-1); |
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319 | if( $scaleSteps[2][$idx] === 0 ) { |
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320 | // Use date adjustment |
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321 | $adj = $scaleSteps[2][$idx+1]; |
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322 | if( $adj >= 30 ) { |
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323 | $start = $this->AdjStartDate($aStartTime,$adj-30); |
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324 | $end = $this->AdjEndDate($aEndTime,$adj-30); |
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325 | } |
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326 | elseif( $adj >= 20 ) { |
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327 | $start = $this->AdjStartDate($aStartTime,false,$adj-20); |
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328 | $end = $this->AdjEndDate($aEndTime,false,$adj-20); |
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329 | } |
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330 | else { |
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331 | $start = $this->AdjStartDate($aStartTime,false,false,$adj); |
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332 | $end = $this->AdjEndDate($aEndTime,false,false,$adj); |
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333 | // We add 1 second for date adjustment to make sure we end on 00:00 the following day |
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334 | // This makes the final major tick be srawn when we step day-by-day instead of ending |
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335 | // on xx:59:59 which would not draw the final major tick |
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336 | $end++; |
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337 | } |
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338 | } |
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339 | else { |
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340 | // Use time adjustment |
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341 | $adj = $scaleSteps[2][$idx+1]; |
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342 | if( $adj >= 30 ) { |
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343 | $start = $this->AdjStartTime($aStartTime,$adj-30); |
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344 | $end = $this->AdjEndTime($aEndTime,$adj-30); |
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345 | } |
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346 | elseif( $adj >= 20 ) { |
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347 | $start = $this->AdjStartTime($aStartTime,false,$adj-20); |
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348 | $end = $this->AdjEndTime($aEndTime,false,$adj-20); |
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349 | } |
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350 | else { |
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351 | $start = $this->AdjStartTime($aStartTime,false,false,$adj); |
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352 | $end = $this->AdjEndTime($aEndTime,false,false,$adj); |
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353 | } |
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354 | } |
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355 | } |
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356 | // If the overall date span is larger than 1 day ten we show date |
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357 | $format = ''; |
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358 | if( ($end-$start) > SECPERDAY ) { |
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359 | $format = 'Y-m-d '; |
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360 | } |
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361 | // If the major step is less than 1 day we need to whow hours + min |
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362 | if( $major < SECPERDAY ) { |
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363 | $format .= 'H:i'; |
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364 | } |
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365 | // If the major step is less than 1 min we need to show sec |
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366 | if( $major < 60 ) { |
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367 | $format .= ':s'; |
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368 | } |
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369 | $done=true; |
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370 | } |
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371 | ++$i; |
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372 | } |
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373 | return array($start,$end,$major,$minor,$format); |
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374 | } |
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375 | |
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376 | // Overrides the automatic determined date format. Must be a valid date() format string |
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377 | function SetDateFormat($aFormat) { |
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378 | $this->date_format = $aFormat; |
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379 | $this->ticks->SetLabelDateFormat($this->date_format); |
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380 | } |
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381 | |
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382 | function AdjustForDST($aFlg=true) { |
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383 | $this->ticks->AdjustForDST($aFlg); |
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384 | } |
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385 | |
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386 | |
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387 | function SetDateAlign($aStartAlign,$aEndAlign=false) { |
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388 | if( $aEndAlign === false ) { |
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389 | $aEndAlign=$aStartAlign; |
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390 | } |
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391 | $this->iStartAlign = $aStartAlign; |
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392 | $this->iEndAlign = $aEndAlign; |
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393 | } |
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394 | |
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395 | function SetTimeAlign($aStartAlign,$aEndAlign=false) { |
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396 | if( $aEndAlign === false ) { |
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397 | $aEndAlign=$aStartAlign; |
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398 | } |
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399 | $this->iStartTimeAlign = $aStartAlign; |
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400 | $this->iEndTimeAlign = $aEndAlign; |
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401 | } |
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402 | |
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403 | |
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404 | function AutoScale($img,$aStartTime,$aEndTime,$aNumSteps,$_adummy=false) { |
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405 | // We need to have one dummy argument to make the signature of AutoScale() |
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406 | // identical to LinearScale::AutoScale |
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407 | if( $aStartTime == $aEndTime ) { |
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408 | // Special case when we only have one data point. |
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409 | // Create a small artifical intervall to do the autoscaling |
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410 | $aStartTime -= 10; |
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411 | $aEndTime += 10; |
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412 | } |
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413 | $done=false; |
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414 | $i=0; |
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415 | while( ! $done && $i < 5) { |
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416 | list($adjstart,$adjend,$maj,$min,$format) = $this->DoDateAutoScale($aStartTime,$aEndTime,$i); |
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417 | $n = floor(($adjend-$adjstart)/$maj); |
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418 | if( $n * 1.7 > $aNumSteps ) { |
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419 | $done=true; |
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420 | } |
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421 | $i++; |
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422 | } |
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423 | |
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424 | /* |
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425 | if( 0 ) { // DEBUG |
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426 | echo " Start =".date("Y-m-d H:i:s",$aStartTime)."<br>"; |
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427 | echo " End =".date("Y-m-d H:i:s",$aEndTime)."<br>"; |
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428 | echo "Adj Start =".date("Y-m-d H:i:s",$adjstart)."<br>"; |
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429 | echo "Adj End =".date("Y-m-d H:i:s",$adjend)."<p>"; |
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430 | echo "Major = $maj s, ".floor($maj/60)."min, ".floor($maj/3600)."h, ".floor($maj/86400)."day<br>"; |
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431 | echo "Min = $min s, ".floor($min/60)."min, ".floor($min/3600)."h, ".floor($min/86400)."day<br>"; |
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432 | echo "Format=$format<p>"; |
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433 | } |
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434 | */ |
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435 | |
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436 | if( $this->iStartTimeAlign !== false && $this->iStartAlign !== false ) { |
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437 | JpGraphError::RaiseL(3001); |
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438 | //('It is only possible to use either SetDateAlign() or SetTimeAlign() but not both'); |
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439 | } |
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440 | |
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441 | if( $this->iStartTimeAlign !== false ) { |
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442 | if( $this->iStartTimeAlign >= 30 ) { |
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443 | $adjstart = $this->AdjStartTime($aStartTime,$this->iStartTimeAlign-30); |
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444 | } |
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445 | elseif( $this->iStartTimeAlign >= 20 ) { |
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446 | $adjstart = $this->AdjStartTime($aStartTime,false,$this->iStartTimeAlign-20); |
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447 | } |
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448 | else { |
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449 | $adjstart = $this->AdjStartTime($aStartTime,false,false,$this->iStartTimeAlign); |
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450 | } |
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451 | } |
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452 | if( $this->iEndTimeAlign !== false ) { |
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453 | if( $this->iEndTimeAlign >= 30 ) { |
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454 | $adjend = $this->AdjEndTime($aEndTime,$this->iEndTimeAlign-30); |
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455 | } |
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456 | elseif( $this->iEndTimeAlign >= 20 ) { |
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457 | $adjend = $this->AdjEndTime($aEndTime,false,$this->iEndTimeAlign-20); |
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458 | } |
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459 | else { |
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460 | $adjend = $this->AdjEndTime($aEndTime,false,false,$this->iEndTimeAlign); |
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461 | } |
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462 | } |
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463 | |
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464 | |
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465 | |
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466 | if( $this->iStartAlign !== false ) { |
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467 | if( $this->iStartAlign >= 30 ) { |
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468 | $adjstart = $this->AdjStartDate($aStartTime,$this->iStartAlign-30); |
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469 | } |
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470 | elseif( $this->iStartAlign >= 20 ) { |
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471 | $adjstart = $this->AdjStartDate($aStartTime,false,$this->iStartAlign-20); |
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472 | } |
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473 | else { |
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474 | $adjstart = $this->AdjStartDate($aStartTime,false,false,$this->iStartAlign); |
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475 | } |
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476 | } |
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477 | if( $this->iEndAlign !== false ) { |
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478 | if( $this->iEndAlign >= 30 ) { |
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479 | $adjend = $this->AdjEndDate($aEndTime,$this->iEndAlign-30); |
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480 | } |
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481 | elseif( $this->iEndAlign >= 20 ) { |
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482 | $adjend = $this->AdjEndDate($aEndTime,false,$this->iEndAlign-20); |
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483 | } |
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484 | else { |
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485 | $adjend = $this->AdjEndDate($aEndTime,false,false,$this->iEndAlign); |
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486 | } |
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487 | } |
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488 | $this->Update($img,$adjstart,$adjend); |
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489 | if( ! $this->ticks->IsSpecified() ) |
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490 | $this->ticks->Set($maj,$min); |
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491 | if( $this->date_format == '' ) |
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492 | $this->ticks->SetLabelDateFormat($format); |
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493 | else |
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494 | $this->ticks->SetLabelDateFormat($this->date_format); |
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495 | } |
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496 | } |
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497 | |
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498 | |
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499 | ?> |
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