1 | <?php |
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2 | /*======================================================================= |
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3 | // File: JPGRAPH_SPIDER.PHP |
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4 | // Description: Spider plot extension for JpGraph |
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5 | // Created: 2001-02-04 |
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6 | // Author: Johan Persson (johanp@aditus.nu) |
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7 | // Ver: $Id: jpgraph_spider.php 18250 2005-05-07 14:13:43Z ralfbecker $ |
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8 | // |
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9 | // License: This code is released under GPL 2.0 |
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10 | // Copyright (C) 2001 Johan Persson |
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11 | //======================================================================== |
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12 | */ |
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13 | |
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14 | //=================================================== |
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15 | // CLASS FontProp |
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16 | // Description: Utility class to enable the use |
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17 | // of a "title" instance variable for the spider axis. |
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18 | // This clas is only used to hold a font and a color |
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19 | // property for the axis title. |
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20 | //=================================================== |
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21 | class FontProp { |
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22 | var $font_family=FF_FONT1, $font_style=FS_NORMAL,$font_size=14,$font_color=array(0,0,0); |
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23 | function SetFont($family,$style=FS_NORMAL,$size=14) { |
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24 | $this->font_family = $family; |
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25 | $this->font_style = $style; |
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26 | $this->font_size = $size; |
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27 | } |
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28 | |
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29 | function SetColor($c) { |
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30 | $this->font_color = $c; |
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31 | } |
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32 | } |
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33 | |
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34 | class SpiderLogTicks extends Ticks { |
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35 | //--------------- |
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36 | // CONSTRUCTOR |
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37 | function SpiderLogTicks() { |
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38 | } |
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39 | //--------------- |
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40 | // PUBLIC METHODS |
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41 | |
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42 | // TODO: Add Argument grid |
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43 | function Stroke(&$aImg,&$grid,$aPos,$aAxisAngle,&$aScale,&$aMajPos,&$aMajLabel) { |
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44 | $start = $aScale->GetMinVal(); |
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45 | $limit = $aScale->GetMaxVal(); |
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46 | $nextMajor = 10*$start; |
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47 | $step = $nextMajor / 10.0; |
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48 | $count=1; |
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49 | |
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50 | $ticklen_maj=5; |
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51 | $dx_maj=round(sin($aAxisAngle)*$ticklen_maj); |
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52 | $dy_maj=round(cos($aAxisAngle)*$ticklen_maj); |
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53 | $ticklen_min=3; |
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54 | $dx_min=round(sin($aAxisAngle)*$ticklen_min); |
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55 | $dy_min=round(cos($aAxisAngle)*$ticklen_min); |
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56 | |
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57 | $aMajPos=array(); |
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58 | $aMajLabel=array(); |
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59 | |
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60 | if( $this->supress_first ) |
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61 | $aMajLabel[]=""; |
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62 | else |
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63 | $aMajLabel[]=$start; |
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64 | $yr=$aScale->RelTranslate($start); |
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65 | $xt=round($yr*cos($aAxisAngle))+$aScale->scale_abs[0]; |
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66 | $yt=$aPos-round($yr*sin($aAxisAngle)); |
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67 | $aMajPos[]=$xt+2*$dx_maj; |
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68 | $aMajPos[]=$yt-$aImg->GetFontheight()/2; |
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69 | $grid[]=$xt; |
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70 | $grid[]=$yt; |
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71 | |
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72 | $aImg->SetLineWeight($this->weight); |
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73 | |
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74 | for($y=$start; $y<=$limit; $y+=$step,++$count ) { |
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75 | $yr=$aScale->RelTranslate($y); |
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76 | $xt=round($yr*cos($aAxisAngle))+$aScale->scale_abs[0]; |
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77 | $yt=$aPos-round($yr*sin($aAxisAngle)); |
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78 | if( $count % 10 == 0 ) { |
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79 | $grid[]=$xt; |
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80 | $grid[]=$yt; |
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81 | $aMajPos[]=$xt+2*$dx_maj; |
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82 | $aMajPos[]=$yt-$aImg->GetFontheight()/2; |
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83 | if( !$this->supress_tickmarks ) { |
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84 | if( $this->majcolor!="" ) $aImg->PushColor($this->majcolor); |
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85 | $aImg->Line($xt+$dx_maj,$yt+$dy_maj,$xt-$dx_maj,$yt-$dy_maj); |
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86 | if( $this->majcolor!="" ) $aImg->PopColor(); |
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87 | } |
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88 | $aMajLabel[]=$nextMajor; |
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89 | $nextMajor *= 10; |
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90 | $step *= 10; |
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91 | $count=1; |
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92 | } |
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93 | else |
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94 | if( !$this->supress_minor_tickmarks ) { |
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95 | if( $this->mincolor!="" ) $aImg->PushColor($this->mincolor); |
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96 | $aImg->Line($xt+$dx_min,$yt+$dy_min,$xt-$dx_min,$yt-$dy_min); |
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97 | if( $this->mincolor!="" ) $aImg->PopColor(); |
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98 | } |
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99 | } |
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100 | } |
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101 | } |
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102 | |
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103 | class SpiderLinearTicks extends LinearTicks { |
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104 | //--------------- |
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105 | // CONSTRUCTOR |
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106 | function SpiderLinearTicks() { |
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107 | // Empty |
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108 | } |
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109 | |
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110 | //--------------- |
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111 | // PUBLIC METHODS |
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112 | |
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113 | // TODO: Add argument grid |
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114 | function Stroke(&$aImg,&$grid,$aPos,$aAxisAngle,&$aScale,&$aMajPos,&$aMajLabel) { |
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115 | // Prepare to draw linear ticks |
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116 | $maj_step_abs = abs($aScale->scale_factor*$this->major_step); |
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117 | $min_step_abs = abs($aScale->scale_factor*$this->minor_step); |
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118 | $nbrmaj = floor(($aScale->world_abs_size)/$maj_step_abs); |
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119 | $nbrmin = floor(($aScale->world_abs_size)/$min_step_abs); |
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120 | $skip = round($nbrmin/$nbrmaj); // Don't draw minor ontop of major |
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121 | |
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122 | // Draw major ticks |
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123 | $ticklen2=4; |
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124 | $dx=round(sin($aAxisAngle)*$ticklen2); |
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125 | $dy=round(cos($aAxisAngle)*$ticklen2); |
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126 | $label=$aScale->scale[0]+$this->major_step; |
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127 | |
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128 | $aImg->SetLineWeight($this->weight); |
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129 | |
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130 | for($i=1; $i<=$nbrmaj; ++$i) { |
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131 | $xt=round($i*$maj_step_abs*cos($aAxisAngle))+$aScale->scale_abs[0]; |
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132 | $yt=$aPos-round($i*$maj_step_abs*sin($aAxisAngle)); |
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133 | $aMajLabel[]=$label; |
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134 | $label += $this->major_step; |
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135 | $grid[]=$xt; |
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136 | $grid[]=$yt; |
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137 | $aMajPos[($i-1)*2]=$xt+2*$dx; |
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138 | $aMajPos[($i-1)*2+1]=$yt-$aImg->GetFontheight()/2; |
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139 | if( !$this->supress_tickmarks ) { |
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140 | if( $this->majcolor!="" ) $aImg->PushColor($this->majcolor); |
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141 | $aImg->Line($xt+$dx,$yt+$dy,$xt-$dx,$yt-$dy); |
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142 | if( $this->majcolor!="" ) $aImg->PopColor(); |
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143 | } |
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144 | } |
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145 | |
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146 | // Draw minor ticks |
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147 | $ticklen2=3; |
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148 | $dx=round(sin($aAxisAngle)*$ticklen2); |
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149 | $dy=round(cos($aAxisAngle)*$ticklen2); |
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150 | if( !$this->supress_tickmarks && !$this->supress_minor_tickmarks) { |
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151 | if( $this->mincolor!="" ) $aImg->PushColor($this->mincolor); |
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152 | for($i=1; $i<=$nbrmin; ++$i) { |
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153 | if( ($i % $skip) == 0 ) continue; |
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154 | $xt=round($i*$min_step_abs*cos($aAxisAngle))+$aScale->scale_abs[0]; |
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155 | $yt=$pos-round($i*$min_step_abs*sin($aAxisAngle)); |
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156 | $aImg->Line($xt+$dx,$yt+$dy,$xt-$dx,$yt-$dy); |
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157 | } |
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158 | if( $this->mincolor!="" ) $aImg->PopColor(); |
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159 | } |
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160 | } |
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161 | } |
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162 | |
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163 | |
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164 | |
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165 | //=================================================== |
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166 | // CLASS SpiderAxis |
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167 | // Description: Implements axis for the spider graph |
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168 | //=================================================== |
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169 | class SpiderAxis extends Axis { |
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170 | var $title_color="navy"; |
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171 | var $title=null; |
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172 | //--------------- |
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173 | // CONSTRUCTOR |
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174 | function SpiderAxis(&$img,&$aScale,$color=array(0,0,0)) { |
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175 | parent::Axis($img,$aScale,$color); |
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176 | $this->len=$img->plotheight; |
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177 | $this->font_size = FF_FONT1; |
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178 | $this->title = new FontProp(); |
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179 | $this->color = array(0,0,0); |
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180 | } |
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181 | //--------------- |
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182 | // PUBLIC METHODS |
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183 | function SetTickLabels($l) { |
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184 | $this->ticks_label = $l; |
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185 | } |
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186 | |
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187 | |
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188 | // Stroke the axis |
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189 | // $pos = Vertical position of axis |
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190 | // $aAxisAngle = Axis angle |
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191 | // $grid = Returns an array with positions used to draw the grid |
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192 | // $lf = Label flag, TRUE if the axis should have labels |
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193 | function Stroke($pos,$aAxisAngle,&$grid,$title,$lf) { |
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194 | $this->img->SetColor($this->color); |
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195 | |
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196 | // Determine end points for the axis |
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197 | $x=round($this->scale->world_abs_size*cos($aAxisAngle)+$this->scale->scale_abs[0]); |
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198 | $y=round($pos-$this->scale->world_abs_size*sin($aAxisAngle)); |
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199 | |
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200 | // Draw axis |
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201 | $this->img->SetColor($this->color); |
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202 | $this->img->SetLineWeight($this->weight); |
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203 | if( !$this->hide ) |
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204 | $this->img->Line($this->scale->scale_abs[0],$pos,$x,$y); |
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205 | |
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206 | $this->scale->ticks->Stroke($this->img,$grid,$pos,$aAxisAngle,$this->scale,$majpos,$majlabel); |
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207 | |
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208 | // Draw labels |
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209 | if( $lf && !$this->hide ) { |
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210 | $this->img->SetFont($this->font_family,$this->font_style,$this->font_size); |
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211 | $this->img->SetTextAlign("left","top"); |
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212 | $this->img->SetColor($this->color); |
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213 | |
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214 | // majpos contsins (x,y) coordinates for labels |
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215 | for($i=0; $i<count($majpos)/2; ++$i) { |
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216 | if( $this->ticks_label != null ) |
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217 | $this->img->StrokeText($majpos[$i*2],$majpos[$i*2+1],$this->ticks_label[$i]); |
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218 | else |
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219 | $this->img->StrokeText($majpos[$i*2],$majpos[$i*2+1],$majlabel[$i]); |
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220 | } |
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221 | } |
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222 | $this->_StrokeAxisTitle($pos,$aAxisAngle,$title); |
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223 | } |
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224 | //--------------- |
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225 | // PRIVATE METHODS |
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226 | |
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227 | function _StrokeAxisTitle($pos,$aAxisAngle,$title) { |
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228 | // Draw title of this axis |
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229 | $this->img->SetFont($this->title->font_family,$this->title->font_style,$this->title->font_size); |
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230 | $this->img->SetColor($this->title->font_color); |
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231 | $marg=6; |
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232 | $xt=round(($this->scale->world_abs_size+$marg)*cos($aAxisAngle)+$this->scale->scale_abs[0]); |
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233 | $yt=round($pos-($this->scale->world_abs_size+$marg)*sin($aAxisAngle)); |
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234 | |
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235 | // Position the axis title. |
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236 | // dx, dy is the offset from the top left corner of the bounding box that sorrounds the text |
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237 | // that intersects with the extension of the corresponding axis. The code looks a little |
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238 | // bit messy but this is really the only way of having a reasonable position of the |
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239 | // axis titles. |
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240 | $h=$this->img->GetFontHeight(); |
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241 | $w=$this->img->GetTextWidth($title); |
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242 | while( $aAxisAngle > 2*M_PI ) $aAxisAngle -= 2*M_PI; |
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243 | if( $aAxisAngle>=7*M_PI/4 || $aAxisAngle <= M_PI/4 ) $dx=0; |
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244 | if( $aAxisAngle>=M_PI/4 && $aAxisAngle <= 3*M_PI/4 ) $dx=($aAxisAngle-M_PI/4)*2/M_PI; |
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245 | if( $aAxisAngle>=3*M_PI/4 && $aAxisAngle <= 5*M_PI/4 ) $dx=1; |
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246 | if( $aAxisAngle>=5*M_PI/4 && $aAxisAngle <= 7*M_PI/4 ) $dx=(1-($aAxisAngle-M_PI*5/4)*2/M_PI); |
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247 | |
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248 | if( $aAxisAngle>=7*M_PI/4 ) $dy=(($aAxisAngle-M_PI)-3*M_PI/4)*2/M_PI; |
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249 | if( $aAxisAngle<=M_PI/4 ) $dy=(1-$aAxisAngle*2/M_PI); |
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250 | if( $aAxisAngle>=M_PI/4 && $aAxisAngle <= 3*M_PI/4 ) $dy=1; |
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251 | if( $aAxisAngle>=3*M_PI/4 && $aAxisAngle <= 5*M_PI/4 ) $dy=(1-($aAxisAngle-3*M_PI/4)*2/M_PI); |
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252 | if( $aAxisAngle>=5*M_PI/4 && $aAxisAngle <= 7*M_PI/4 ) $dy=0; |
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253 | |
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254 | if( !$this->hide ) |
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255 | $this->img->StrokeText($xt-$dx*$w,$yt-$dy*$h,$title); |
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256 | |
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257 | } |
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258 | |
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259 | |
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260 | } // Class |
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261 | |
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262 | |
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263 | //=================================================== |
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264 | // CLASS SpiderGrid |
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265 | // Description: Draws grid for the spider graph |
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266 | //=================================================== |
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267 | class SpiderGrid extends Grid { |
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268 | //------------ |
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269 | // CONSTRUCTOR |
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270 | function SpiderGrid() { |
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271 | } |
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272 | |
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273 | //---------------- |
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274 | // PRIVATE METHODS |
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275 | function Stroke(&$img,&$grid) { |
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276 | if( !$this->show ) return; |
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277 | $nbrticks = count($grid[0])/2; |
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278 | $nbrpnts = count($grid); |
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279 | $img->SetColor($this->grid_color); |
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280 | $img->SetLineWeight($this->weight); |
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281 | for($i=0; $i<$nbrticks; ++$i) { |
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282 | for($j=0; $j<$nbrpnts; ++$j) { |
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283 | $pnts[$j*2]=$grid[$j][$i*2]; |
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284 | $pnts[$j*2+1]=$grid[$j][$i*2+1]; |
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285 | } |
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286 | for($k=0; $k<$nbrpnts; ++$k ){ |
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287 | $l=($k+1)%$nbrpnts; |
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288 | if( $this->type == "solid" ) |
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289 | $img->Line($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1]); |
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290 | elseif( $this->type == "dotted" ) |
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291 | $img->DashedLine($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1],1,6); |
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292 | elseif( $this->type == "dashed" ) |
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293 | $img->DashedLine($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1],2,4); |
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294 | elseif( $this->type == "longdashed" ) |
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295 | $img->DashedLine($pnts[$k*2],$pnts[$k*2+1],$pnts[$l*2],$pnts[$l*2+1],8,6); |
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296 | } |
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297 | $pnts=array(); |
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298 | } |
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299 | } |
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300 | } // Class |
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301 | |
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302 | |
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303 | //=================================================== |
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304 | // CLASS SpiderPlot |
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305 | // Description: Plot a spiderplot |
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306 | //=================================================== |
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307 | class SpiderPlot { |
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308 | var $data=array(); |
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309 | var $fill=false, $fill_color=array(200,170,180); |
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310 | var $color=array(0,0,0); |
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311 | var $legend=""; |
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312 | var $weight=1; |
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313 | //--------------- |
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314 | // CONSTRUCTOR |
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315 | function SpiderPlot($data) { |
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316 | $this->data = $data; |
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317 | } |
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318 | |
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319 | //--------------- |
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320 | // PUBLIC METHODS |
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321 | function Min() { |
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322 | return Min($this->data); |
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323 | } |
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324 | |
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325 | function Max() { |
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326 | return Max($this->data); |
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327 | } |
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328 | |
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329 | function SetLegend($legend) { |
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330 | $this->legend=$legend; |
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331 | } |
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332 | |
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333 | function SetFill($f=true) { |
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334 | $this->fill = $f; |
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335 | } |
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336 | |
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337 | function SetLineWeight($w) { |
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338 | $this->weight=$w; |
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339 | } |
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340 | |
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341 | function SetColor($color,$fill_color=array(160,170,180)) { |
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342 | $this->color = $color; |
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343 | $this->fill_color = $fill_color; |
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344 | } |
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345 | |
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346 | function GetCSIMareas() { |
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347 | JpGraphError::Raise("JpGraph Error: Client side image maps not supported for SpiderPlots."); |
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348 | } |
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349 | |
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350 | function Stroke(&$img, $pos, &$scale, $startangle) { |
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351 | $nbrpnts = count($this->data); |
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352 | $astep=2*M_PI/$nbrpnts; |
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353 | $a=$startangle; |
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354 | |
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355 | // Rotate each point to the correct axis-angle |
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356 | // TODO: Update for LogScale |
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357 | for($i=0; $i<$nbrpnts; ++$i) { |
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358 | //$c=$this->data[$i]; |
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359 | $cs=$scale->RelTranslate($this->data[$i]); |
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360 | $x=round($cs*cos($a)+$scale->scale_abs[0]); |
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361 | $y=round($pos-$cs*sin($a)); |
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362 | /* |
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363 | $c=log10($c); |
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364 | $x=round(($c-$scale->scale[0])*$scale->scale_factor*cos($a)+$scale->scale_abs[0]); |
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365 | $y=round($pos-($c-$scale->scale[0])*$scale->scale_factor*sin($a)); |
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366 | */ |
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367 | $pnts[$i*2]=$x; |
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368 | $pnts[$i*2+1]=$y; |
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369 | $a += $astep; |
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370 | } |
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371 | if( $this->fill ) { |
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372 | $img->SetColor($this->fill_color); |
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373 | $img->FilledPolygon($pnts); |
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374 | } |
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375 | $img->SetLineWeight($this->weight); |
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376 | $img->SetColor($this->color); |
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377 | $img->Polygon($pnts); |
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378 | } |
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379 | |
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380 | //--------------- |
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381 | // PRIVATE METHODS |
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382 | function GetCount() { |
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383 | return count($this->data); |
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384 | } |
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385 | |
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386 | function Legend(&$graph) { |
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387 | if( $this->legend=="" ) return; |
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388 | if( $this->fill ) |
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389 | $graph->legend->Add($this->legend,$this->fill_color); |
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390 | else |
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391 | $graph->legend->Add($this->legend,$this->color); |
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392 | } |
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393 | |
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394 | } // Class |
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395 | |
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396 | //=================================================== |
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397 | // CLASS SpiderGraph |
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398 | // Description: Main container for a spider graph |
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399 | //=================================================== |
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400 | class SpiderGraph extends Graph { |
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401 | var $posx; |
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402 | var $posy; |
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403 | var $len; |
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404 | var $plots=null, $axis_title=null; |
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405 | var $grid,$axis=null; |
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406 | //--------------- |
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407 | // CONSTRUCTOR |
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408 | function SpiderGraph($width=300,$height=200,$cachedName="",$timeout=0,$inline=1) { |
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409 | $this->Graph($width,$height,$cachedName,$timeout,$inline); |
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410 | $this->posx=$width/2; |
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411 | $this->posy=$height/2; |
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412 | $this->len=min($width,$height)*0.35; |
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413 | $this->SetColor(array(255,255,255)); |
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414 | $this->SetTickDensity(TICKD_NORMAL); |
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415 | $this->SetScale("lin"); |
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416 | } |
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417 | |
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418 | //--------------- |
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419 | // PUBLIC METHODS |
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420 | function SupressTickMarks($f=true) { |
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421 | $this->axis->scale->ticks->SupressTickMarks($f); |
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422 | } |
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423 | |
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424 | function SetScale($axtype,$ymin=1,$ymax=1) { |
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425 | if( $axtype != "lin" && $axtype != "log" ) { |
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426 | JpGraphError::Raise("Illegal scale for spiderplot ($axtype). Must be \"lin\" or \"log\""); |
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427 | } |
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428 | if( $axtype=="lin" ) { |
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429 | $this->yscale = & new LinearScale(1,1); |
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430 | $this->yscale->ticks = & new SpiderLinearTicks(); |
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431 | $this->yscale->ticks->SupressMinorTickMarks(); |
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432 | } |
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433 | elseif( $axtype=="log" ) { |
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434 | $this->yscale = & new LogScale(1,1); |
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435 | $this->yscale->ticks = & new SpiderLogTicks(); |
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436 | //JpGraphError::Raise("JpGraph Error: Logarithmic spider plots are not yet supported"); |
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437 | } |
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438 | |
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439 | $this->axis = & new SpiderAxis($this->img,$this->yscale); |
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440 | $this->grid = & new SpiderGrid(); |
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441 | } |
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442 | |
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443 | function SetPlotSize($s) { |
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444 | if( $s<0.1 || $s>1 ) |
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445 | JpGraphError::Raise("JpGraph Error: Spider Plot size must be between 0.1 and 1. (Your value=$s)"); |
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446 | $this->len=min($this->img->width,$this->img->height)*$s/2; |
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447 | } |
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448 | |
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449 | function SetTickDensity($densy=TICKD_NORMAL) { |
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450 | $this->ytick_factor=25; |
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451 | switch( $densy ) { |
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452 | case TICKD_DENSE: |
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453 | $this->ytick_factor=12; |
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454 | break; |
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455 | case TICKD_NORMAL: |
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456 | $this->ytick_factor=25; |
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457 | break; |
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458 | case TICKD_SPARSE: |
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459 | $this->ytick_factor=40; |
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460 | break; |
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461 | case TICKD_VERYSPARSE: |
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462 | $this->ytick_factor=70; |
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463 | break; |
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464 | default: |
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465 | JpGraphError::Raise("Unsupported Tick density: $densy"); |
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466 | } |
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467 | } |
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468 | |
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469 | function SetCenter($px,$py=0.5) { |
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470 | assert($px > 0 && $py > 0 ); |
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471 | $this->posx=$this->img->width*$px; |
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472 | $this->posy=$this->img->height*$py; |
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473 | } |
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474 | |
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475 | function SetColor($c) { |
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476 | $this->SetMarginColor($c); |
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477 | } |
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478 | |
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479 | function SetTitles($title) { |
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480 | $this->axis_title = $title; |
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481 | } |
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482 | |
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483 | function Add(&$splot) { |
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484 | $this->plots[]=$splot; |
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485 | } |
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486 | |
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487 | function GetPlotsYMinMax() { |
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488 | $min=$this->plots[0]->Min(); |
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489 | $max=$this->plots[0]->Max(); |
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490 | foreach( $this->plots as $p ) { |
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491 | $max=max($max,$p->Max()); |
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492 | $min=min($min,$p->Min()); |
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493 | } |
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494 | if( $min < 0 ) |
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495 | JpGraphError::Raise("JpGraph Error: Minimum data $min (Spider plots only makes sence to use when all data points > 0)"); |
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496 | return array($min,$max); |
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497 | } |
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498 | |
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499 | // Stroke the Spider graph |
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500 | function Stroke($aStrokeFileName="") { |
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501 | // Set Y-scale |
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502 | if( !$this->yscale->IsSpecified() && |
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503 | count($this->plots)>0 ) { |
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504 | list($min,$max) = $this->GetPlotsYMinMax(); |
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505 | $this->yscale->AutoScale($this->img,0,$max,$this->len/$this->ytick_factor); |
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506 | } |
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507 | // Set start position end length of scale (in absolute pixels) |
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508 | $this->yscale->SetConstants($this->posx,$this->len); |
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509 | |
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510 | // We need as many axis as there are data points |
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511 | $nbrpnts=$this->plots[0]->GetCount(); |
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512 | |
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513 | // If we have no titles just number the axis 1,2,3,... |
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514 | if( $this->axis_title==null ) { |
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515 | for($i=0; $i<$nbrpnts; ++$i ) |
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516 | $this->axis_title[$i] = $i+1; |
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517 | } |
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518 | elseif(count($this->axis_title)<$nbrpnts) |
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519 | JpGraphError::Raise("JpGraph: Number of titles does not match number of points in plot."); |
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520 | for($i=0; $i<count($this->plots); ++$i ) |
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521 | if( $nbrpnts != $this->plots[$i]->GetCount() ) |
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522 | JpGraphError::Raise("JpGraph: Each spider plot must have the same number of data points."); |
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523 | |
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524 | $this->StrokeFrame(); |
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525 | $astep=2*M_PI/$nbrpnts; |
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526 | |
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527 | // Prepare legends |
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528 | for($i=0; $i<count($this->plots); ++$i) |
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529 | $this->plots[$i]->Legend($this); |
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530 | $this->legend->Stroke($this->img); |
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531 | |
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532 | // Plot points |
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533 | $a=M_PI/2; |
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534 | for($i=0; $i<count($this->plots); ++$i ) |
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535 | $this->plots[$i]->Stroke($this->img, $this->posy, $this->yscale, $a); |
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536 | |
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537 | // Draw axis and grid |
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538 | for( $i=0,$a=M_PI/2; $i<$nbrpnts; ++$i, $a+=$astep ) { |
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539 | $this->axis->Stroke($this->posy,$a,$grid[$i],$this->axis_title[$i],$i==0); |
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540 | } |
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541 | $this->grid->Stroke($this->img,$grid); |
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542 | $this->title->Center($this->img->left_margin,$this->img->width-$this->img->right_margin,5); |
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543 | $this->title->Stroke($this->img); |
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544 | |
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545 | // Stroke texts |
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546 | if( $this->texts != null ) |
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547 | foreach( $this->texts as $t) |
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548 | $t->Stroke($this->img); |
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549 | |
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550 | |
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551 | // Finally output the image |
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552 | $this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,$aStrokeFileName); |
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553 | } |
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554 | } // Class |
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555 | |
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556 | /* EOF */ |
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557 | ?> |
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