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Code source de jpGraph 2.2 |
1 <style type="text/css"> 2 <!-- 3 A:link {font-family: helvetica, arial, geneva, sans-serif; font-size: x-small; text-decoration: none; color: #0000ff} 4 A:visited {font-family: helvetica, arial, geneva, sans-serif; font-size: x-small; text-decoration: none; color: #0000ff} 5 A:hover {font-family: helvetica, arial, geneva, sans-serif; font-size: x-small; text-decoration: underline; color: #FF0000} 6 th {font-family: helvetica, arial; color : blue; font-size:85%; background : lightgrey; border-right:black solid 1pt; border-bottom:black solid 1pt;} 7 //--> 8 </style><hr><a name="_C_DISPLAYVALUE"><div style="background-color:yellow;font-family:courier new;"></a>CLASS <b>DisplayValue</b></div> 9 <i>(Defined in: jpgraph.php : 5517)</i><table border=1><tr><td> <a href="DisplayValue.html" style="font-family:arial;font-weight:bold;color:darkblue;">DisplayValue</a> </td></tr><tr><td valign=top> <a href="DisplayValue.html#_DISPLAYVALUE_HIDEZERO">HideZero()</a> <br> 10 <a href="DisplayValue.html#_DISPLAYVALUE_SETALIGN">SetAlign()</a> <br> 11 <a href="DisplayValue.html#_DISPLAYVALUE_SETANGLE">SetAngle()</a> <br> 12 <a href="DisplayValue.html#_DISPLAYVALUE_SETCOLOR">SetColor()</a> <br> 13 <a href="DisplayValue.html#_DISPLAYVALUE_SETFONT">SetFont()</a> <br> 14 <a href="DisplayValue.html#_DISPLAYVALUE_SETFORMAT">SetFormat()</a> <br> 15 <a href="DisplayValue.html#_DISPLAYVALUE_SETFORMATCALLBACK">SetFormatCallback()</a> <br> 16 <a href="DisplayValue.html#_DISPLAYVALUE_SETMARGIN">SetMargin()</a> <br> 17 <a href="DisplayValue.html#_DISPLAYVALUE_SHOW">Show()</a> <br> 18 </td></tr></table> <p><div style="font-weight:bold;font-family:arial;font-size:100%;">Class usage and Overview</div>Property class which is used to represent the display value for graphs. For line and bar graphs they represent the propertied of the value that can be displayed at each data point. For bars it represents the value of each bar that can be displayed at top of the bars. 19 <p> 20 This class should never be used directly instead this is an internal class which is accessed through it's instance variable, for example, 21 <p> 22 23 $lineplot = new LinePlot($datay); 24 // Access the instance of DisplayValue 25 $lineplot->value->Show(); <p> 26 <div style="font-weight:bold;font-family:arial;font-size:85%;">See also related classes:</div><a href="LinePlot.html">LinePlot</a> and <a href="BarPlot.html">BarPlot</a> <p> <hr><span style="font-family:arial;font-size:120%;font-weight:bold;">Class Methods</span><hr><p> 27 <p> <p> <span style='font-size:110%;'><a name="_DISPLAYVALUE_HIDEZERO"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000"> 28 function HideZero($aFlag)</font> 29 </b></div></a></span> 30 31 <span style='font-family:arial;font-size:90%;'><i>Hide zero values</i></span><p> 32 33 <table cellspacing=0 style='border:black solid 1pt;' width=100%> 34 <tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr> 35 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 36 $aFlag</font> 37 38 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 39 true</font> 40 </td><td>True=Hide zero values</td></tr> 41 </table> 42 43 <div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>Hide labels that have zero value <br> 44 <div style="font-weight:bold;font-family:arial;font-size:85%;">See also</div><a href="DisplayValue.html#_DISPLAYVALUE_SETFORMAT">DisplayValue::SetFormat</a> and <a href="DisplayValue.html#_DISPLAYVALUE_SETFORMATCALLBACK">DisplayValue::SetFormatCallback</a> 45 <div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000"> 46 $pieplot->value->HideZero();</font> 47 </span><br> 48 <p> 49 <p> <p> <span style='font-size:110%;'><a name="_DISPLAYVALUE_SETALIGN"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000"> 50 function SetAlign($aHAlign,$aVAlign)</font> 51 </b></div></a></span> 52 53 <span style='font-family:arial;font-size:90%;'><i>Specify horizontal and vertical alignment</i></span><p> 54 55 <table cellspacing=0 style='border:black solid 1pt;' width=100%> 56 <tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr> 57 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 58 $aHAlign</font> 59 60 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'> </td><td>Horizontal alignment</td></tr> 61 62 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 63 $aVAlign</font> 64 65 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 66 ''</font> 67 </td><td>Vertical alignment</td></tr> 68 </table> 69 70 <div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>Specify the alignment of the display value in relation to the data point. Possible values are 'left', 'right', 'center' <br> 71 72 <div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000"> 73 $lineplot->value->SetAlign('center'); <br />$lineplot->value->Show(); <br /></font> 74 </span><br> 75 <p> 76 <p> <p> <span style='font-size:110%;'><a name="_DISPLAYVALUE_SETANGLE"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000"> 77 function SetAngle($aAngle)</font> 78 </b></div></a></span> 79 80 <span style='font-family:arial;font-size:90%;'><i>Rotate the value a specified angle</i></span><p> 81 82 <table cellspacing=0 style='border:black solid 1pt;' width=100%> 83 <tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr> 84 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 85 $aAngle</font> 86 87 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'> </td><td>Angle in degrees</td></tr> 88 </table> 89 90 <div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>Roates the text label a number of degrees. 0 degrees is horizontal. 91 <p> 92 Please rememberthat you must use TTF fonts if you need any angle other than 0 or 90 degrees (horizontal or vertical) <br> 93 <div style="font-weight:bold;font-family:arial;font-size:85%;">See also</div><a href="DisplayValue.html#_DISPLAYVALUE_SETFONT">DisplayValue::SetFont</a> 94 <div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000"> 95 $bplot = new barPlot($datay); <br /> <br />// Setup the values that are displayed on top of each bar <br />$bplot->value->Show(); <br /> <br />// Must use TTF fonts if we want text at an arbitrary angle <br />$bplot->value->SetFont(FF_ARIAL,FS_BOLD); <br />$bplot->value->SetAngle(45); <br /> <br />// Black color for positive values and darkred for negative values <br />$bplot->value->SetColor("black","darkred"); <br /></font> 96 </span><br> 97 <p> 98 <p> <p> <span style='font-size:110%;'><a name="_DISPLAYVALUE_SETCOLOR"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000"> 99 function SetColor($aColor,$aNegcolor)</font> 100 </b></div></a></span> 101 102 <span style='font-family:arial;font-size:90%;'><i>Specify color for values</i></span><p> 103 104 <table cellspacing=0 style='border:black solid 1pt;' width=100%> 105 <tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr> 106 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 107 $aColor</font> 108 109 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'> </td><td>Color for positive values</td></tr> 110 111 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 112 $aNegcolor</font> 113 114 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 115 ""</font> 116 </td><td>Color for negative values</td></tr> 117 </table> 118 119 <div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>Specify the value for the labels. You can have one color for positive and one color for negative values. If no negative color value is specified it will be the same as the positive color. <br> 120 121 <div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000"> 122 // Black color for positive values and darkred for negative values <br />$bplot->value->SetColor("black","darkred"); <br /></font> 123 </span><br> 124 <p> 125 <p> <p> <span style='font-size:110%;'><a name="_DISPLAYVALUE_SETFONT"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000"> 126 function SetFont($aFontFamily,$aFontStyle,$aFontSize)</font> 127 </b></div></a></span> 128 129 <span style='font-family:arial;font-size:90%;'><i>Specify font for values</i></span><p> 130 131 <table cellspacing=0 style='border:black solid 1pt;' width=100%> 132 <tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr> 133 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 134 $aFontFamily</font> 135 136 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'> </td><td>Font family</td></tr> 137 138 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 139 $aFontStyle</font> 140 141 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 142 FS_NORMAL</font> 143 </td><td>Font style</td></tr> 144 145 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 146 $aFontSize</font> 147 148 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 149 10</font> 150 </td><td>Font size</td></tr> 151 </table> 152 153 <div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>Specify font for display value <br> 154 <div style="font-weight:bold;font-family:arial;font-size:85%;">See also</div><a href="DisplayValue.html#_DISPLAYVALUE_SETANGLE">DisplayValue::SetAngle</a> 155 <div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000"> 156 // Must use TTF fonts if we want text at an arbitrary angle <br />$bplot->value->SetFont(FF_ARIAL,FS_BOLD); <br /></font> 157 </span><br> 158 <p> 159 <p> <p> <span style='font-size:110%;'><a name="_DISPLAYVALUE_SETFORMAT"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000"> 160 function SetFormat($aFormat,$aNegFormat)</font> 161 </b></div></a></span> 162 163 <span style='font-family:arial;font-size:90%;'><i>Specify printf() format string.</i></span><p> 164 165 <table cellspacing=0 style='border:black solid 1pt;' width=100%> 166 <tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr> 167 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 168 $aFormat</font> 169 170 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'> </td><td>Format for positive values</td></tr> 171 172 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 173 $aNegFormat</font> 174 175 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 176 ""</font> 177 </td><td>Format for negative values</td></tr> 178 </table> 179 180 <div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>Specify the format string for positive and negative values. The format string follows the same riules as the standard printf() format. 181 <p> 182 Please remember that if you want to format a number with a '%' sign you must use double '%%' as escape format, e.g. '%01.2.f%%' will format a number with two decimal places and a following '%' sign. 183 184 <br> 185 186 <div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000"> 187 // Format label as floating point with 2 decimal points and <br />// a dollar sign in front, e.g. '$237.56' <br />$bplot->SetFormt('$%01.2f'); <br /></font> 188 </span><br> 189 <p> 190 <p> <p> <span style='font-size:110%;'><a name="_DISPLAYVALUE_SETFORMATCALLBACK"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000"> 191 function SetFormatCallback($aFunc)</font> 192 </b></div></a></span> 193 194 <span style='font-family:arial;font-size:90%;'><i>Specify format callback function</i></span><p> 195 196 <table cellspacing=0 style='border:black solid 1pt;' width=100%> 197 <tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr> 198 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 199 $aFunc</font> 200 201 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'> </td><td>Name of callback function</td></tr> 202 </table> 203 204 <div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>Specify a function that get's called to format any value. <br> 205 <div style="font-weight:bold;font-family:arial;font-size:85%;">See also</div><a href="DisplayValue.html#_DISPLAYVALUE_SETFORMAT">DisplayValue::SetFormat</a> 206 <div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000"> 207 function barValueFormat($aLabel) { <br /> // Format '1000 english style <br /> return number_format($aLabel) <br /> // Format '1000 french style <br /> // return number_format($aLabel, 2, ',', ' '); <br />} <br /> <br />$barplot->value->SetFormatCallback('barValueFormat'); <br /></font> 208 </span><br> 209 <p> 210 <p> <p> <span style='font-size:110%;'><a name="_DISPLAYVALUE_SETMARGIN"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000"> 211 function SetMargin($aMargin)</font> 212 </b></div></a></span> 213 214 <span style='font-family:arial;font-size:90%;'><i>Set nargin between value and anchor point in plot</i></span><p> 215 216 <table cellspacing=0 style='border:black solid 1pt;' width=100%> 217 <tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr> 218 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 219 $aMargin</font> 220 221 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'> </td><td>Margin in pixels</td></tr> 222 </table> 223 224 <div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>Specify the margin between the data point and the label. <br> 225 226 <div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000"> 227 $bplot->value->SetMargin(50);</font> 228 </span><br> 229 <p> 230 <p> <p> <span style='font-size:110%;'><a name="_DISPLAYVALUE_SHOW"><div style="border-top:solid black 2pt;background-color:lightblue;font-family:courier new;font-size:90%;font-weight:bold;"><b><font color="#000000"> 231 function Show($aFlag)</font> 232 </b></div></a></span> 233 234 <span style='font-family:arial;font-size:90%;'><i>Show value</i></span><p> 235 236 <table cellspacing=0 style='border:black solid 1pt;' width=100%> 237 <tr><th width=25%>Argument</th><th width=15%>Default</th><th width=60%>Description</th></tr> 238 <tr><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 239 $aFlag</font> 240 241 </td><td style='border-right:black solid 1pt;font-family:courier;font-size:90%;font-weight:bold;'><font color="#000000"> 242 true</font> 243 </td><td>True=show value</td></tr> 244 </table> 245 246 <div style="font-weight:bold;font-family:arial;font-size:85%;">Description</div>Enable display of the label. If you want to display a value you must enable it since it is turned off by default. <br> 247 248 <div style="font-weight:bold;font-family:arial;font-size:85%;"><p>Example</div><span style="font-family:courier;font-size:85%;"><font color="#000000"> 249 // Enable display of each slice value <br />$pieplot->value->Show(); <br /></font> 250 </span><br> 251 <p> <hr> <p>
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