[英]NodeJs, Spawn convert
I want to execute convert
inside Node using spawn
. 我想使用
spawn
在Node内执行convert
。
this command runs without any error : 此命令运行无任何错误:
var args = [
'img1.jpg',
'img2.jpg',
'-gravity', 'center',
'-composite', '-'
];
var ls = spawn('convert',args);
ls.stderr.on('data', function (data) {
console.log('stderr: ' + data);
});
but when I try this one : 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);
});
getting this Error: 得到这个错误:
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.
I found the Answer: arguments must be splitted all: 我发现答案:参数必须全部分割:
var args = [
'img1.jpg',
'\\(','img2.jpg','-resize','10x10','\\)',
'-gravity', 'center',
'-composite', '-'
];
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