NodeJs,Spawn转换

时间:2016-07-04 10:49:49

标签: javascript node.js imagemagick spawn

我想使用convert节点中执行spawn 此命令运行时没有任何错误:

var args = [
  'img1.jpg',
  'img2.jpg',
  '-gravity', 'center',
  '-composite', '-'
];

var ls = spawn('convert',args);
ls.stderr.on('data', function (data) {
   console.log('stderr: ' + data);
});

但是当我尝试这个时:

var args = [
  'img1.jpg',
  '\\( img2.jpg -resize 10x10 \\)',
  '-gravity', 'center',
  '-composite', '-'
];
var ls = spawn('convert',args);
ls.stderr.on('data', function (data) {
   console.log('stderr: ' + data);
});

收到此错误:

stderr: convert: unable to open image `\( img2.jpg -resize 10x10 \)': No such file or directory @ error/blob.c/OpenBlob/2702.
convert: no decode delegate for this image format `JPG -RESIZE 10X10 \)' @ error/constitute.c/ReadImage/504.
convert: no images defined `-' @ error/convert.c/ConvertImageCommand/3257.

1 个答案:

答案 0 :(得分:2)

我找到了答案: 参数必须全部拆分:

var args = [
  'img1.jpg',
  '\\(','img2.jpg','-resize','10x10','\\)',
  '-gravity', 'center',
  '-composite', '-'
];