我在将mxGraph编辑器生成的xml导出到图像文件(png或jpg)时遇到问题
我尝试使用PHP示例代码,并且我收到了生成文件中的错误
<b>Notice</b>: Undefined variable: bounds in <b>php/src/canvas/mxGdCanvas.php</b> on line <b>972</b><br />
<br />
<b>Warning</b>: Creating default object from empty value in <b>php/src/canvas/mxGdCanvas.php</b> on line <b>972</b><br />
<br />
<b>Notice</b>: Undefined property: stdClass::$width in <b>php/src/canvas/mxGdCanvas.php</b> on line <b>972</b><br />
<br />
<b>Notice</b>: Undefined property: stdClass::$x in <b>php/src/canvas/mxGdCanvas.php</b> on line <b>973</b><br />
<br />
<b>Notice</b>: Undefined property: stdClass::$y in <b>php/src/canvas/mxGdCanvas.php</b> on line <b>974</b><br />
我使用的PHP代码是:
<?php
/**
* Copyright (c) 2006, Gaudenz Alder
*/
include_once("../src/mxServer.php");
/**
* Function: main
*
* Creates a graph using the API and converts it into a PNG image.
*/
function main()
{
$format = "png";
$filename = "diagrams/graphmodel.xml";
$xml = file_get_contents($filename);
$image = mxGraphViewImageReader::convert($xml, "#FFFFFF");
header("Content-Type: image/png");
echo mxUtils::encodeImage($image);
}
//mxConstants::$DEFAULT_FONTFAMILY = "ttf/verah.ttf";
main();
?>
我也尝试过Java servlet,生成的图像总是空白的。
还有什么我可以尝试的吗? 我知道还有一个.NET sdk,但我想避免使用它。
感谢