转换前ImageMagick重绘svg图像

I have a script, which create svg diagram.

After creating I use ImageMagick to convert svg to image.

$image = new Imagick('image.svg');
$image->setImageFormat("png24");
$image->setCompression(imagick::COMPRESSION_UNDEFINED);
$image->setCompressionQuality(100);
//$image->resizeImage(1040, 854, imagick::FILTER_UNDEFINED, 1);
$image->writeImage('image.png');
$image->clear();
$image->destroy();

But when I convert svg, image have points in other places.