用pChart渲染图像
用pChart渲染图像
提问于 2016-07-27 20:11:55
我试图通过pChart 2.1.4 libary通过邮件发送图像。这个库在我的wordpress插件中使用。
我尝试了以下几点：
/* Create and populate the pData object */
$MyData = new pData();
for($i=0;$i<=30;$i++) { $MyData->addPoints(rand(1,15),"Probe 1"); }
$MyData->setSerieTicks("Probe 2",4);
$MyData->setAxisName(0,"Temperatures");
/* Create the pChart object */
$myPicture = new pImage(700,230,$MyData);
/* Turn of Antialiasing */
$myPicture->Antialias = FALSE;
/* Add a border to the picture */
$myPicture->drawRectangle(0,0,699,229,array("R"=>0,"G"=>0,"B"=>0));
/* Define the chart area */
$myPicture->setGraphArea(60,40,650,200);
/* Draw the scale */
$scaleSettings = array("XMargin"=>10,"YMargin"=>10,"Floating"=>TRUE,"GridR"=>200,"GridG"=>200,"GridB"=>200, "DrawSubTicks"=>TRUE,"CycleBackground"=>TRUE);
$myPicture->drawScale($scaleSettings);
/* Write the chart legend */
$myPicture->drawLegend(600,20,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));
/* Turn on Antialiasing */
$myPicture->Antialias = TRUE;
/* Enable shadow computing */
$myPicture->setShadow(TRUE,array("X"=>1,"Y"=>1,"R"=>0,"G"=>0,"B"=>0,"Alpha"=>10));
/* Draw the area chart */
$Threshold = "";
$Threshold[] = array("Min"=>0,"Max"=>5,"R"=>207,"G"=>240,"B"=>20,"Alpha"=>70);
$Threshold[] = array("Min"=>5,"Max"=>10,"R"=>240,"G"=>232,"B"=>20,"Alpha"=>70);
$Threshold[] = array("Min"=>10,"Max"=>20,"R"=>240,"G"=>191,"B"=>20,"Alpha"=>70);
$myPicture->drawAreaChart(array("Threshold"=>$Threshold));
/* Render the picture (choose the best way) */
$today = date("Ymd");
$curr_user = wp_get_current_user();
$img_name = $today . $curr_user->user_login . ".png";
$myPicture->render($img_name);
//#############################################################
//create mail
$message.=<<<HTML
<tr valign="top" align="center">
<img src='$img_name'>
</tr>
<tr>
<td width="25%" style="width:25%;" valign="top" align="center">
HTML;该图像呈现如下所示：
<img src="https://ci6.googleusercontent.com/proxy/3y_3IDPObyXLCMINb1aKlZf3gh3yI9X3Co3OVv08MohNWIgv4eTR3bWw3KkcLQ=s0-d-e1-ft#http://20160727admin.png" class="CToWUd">但是，在邮件中显示了以下内容：
有什么建议我做错了吗？
图像保存在哪里？
谢谢你的答复！
回答 1
Stack Overflow用户
回答已采纳
发布于 2017-01-30 11:13:41
我知道现在有点晚了，但它会帮助别人，做同样的错误。
OP正在使用
<img src='$img_name'>那一定是
<img src="$img_name">否则，它将在img中放置$img_name，而不是$img_name；Plus的值，确保该位置上存在图像。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/38622339
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