使用“FilePondPluginFileEncode”时使用从隐藏字段传递的数据裁剪图像时,是否有任何适当的 PHP 代码可供使用?(我使用 Doka 作为图像编辑器)https://pqina.nl/doka/?ref=filepond
当我选择图像然后编辑裁剪时,以下选项将作为隐藏字段中文件池的编码元数据传递。+ base64 图像字符串 ( https://pqina.nl/filepond/docs/patterns/plugins/file-encode/ )
{"crop":{
"center":{"x":0.6019359981,"y":0.5843676986},
"rotation":0,
"zoom":1,
"aspectRatio":0.6567346851,
"flip":{"horizontal":false,"vertical":false},
"scaleToFit":true},
"image":{"width":225,"height":148,"orientation":-1},
"size":{"upscale":true,"mode":"cover","width":null,"height":null},
"output":{"type":null,"quality":null,"background":null},
"filter":null,
"color":{"contrast":{"value":1,"matrix":[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0]},"
exposure":{"value":1,"matrix":[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0]},"brightness":
{"value":0,"matrix":[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0]},"saturation":
{"value":1,"matrix":[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0]}
},"markup":[],
"colorMatrix":[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0]
}
提交时:这是我写的作物。它进行了裁剪,但是当我们从 file-pond doka 图像编辑器中选择时,它并没有完全裁剪
<?php
if (isset($file_format['metadata']['crop'])) {
$im = new \Imagick($uploaded_file->getRealPath());
$aspectRatio = $file_format['metadata']['crop']['aspectRatio'];
$crop_center_x = $file_format['metadata']['crop']['center']['x'];//percentage
$crop_center_y = $file_format['metadata']['crop']['center']['y'];//percentage
$scale = $file_format['metadata']['crop']['zoom'];
//Doka formula for aspectRatio = height/width
//scale to original size but this crop width and height is slightly larger that what we select
//this may need some improvement
$crop_width = ($im->getImageHeight()/$aspectRatio)/$scale; //width of crop selected
$crop_height = ($im->getImageWidth()*$aspectRatio )/$scale; //height of crop selected
//x_of_crop
$x_center_crop = $im->getImageWidth() * $crop_center_x; //pixels from left to crop center
$y_center_crop = $im->getImageHeight() * $crop_center_y; //pixels from top to crop center
$x_left = $x_center_crop - ($crop_width/2);//left position of crop
$y_top = $y_center_crop - ($crop_height/2);//top position of crop
$im->cropImaxge($crop_width,$crop_height,$x_left,$y_top);
file_put_contents($filePath, $im);
$uploaded_file = new UploadedFile($filePath, $file_format['name'], null, null, true);
}
?>
我们这样做是正确的还是我们有任何选项可以使用裁剪的图像数据更新 base64 字符串,所以我们不必在服务器端进行裁剪?
任何帮助,将不胜感激。